8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________

Form 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): April 15, 2021

Commerce Bancshares, Inc.

(Exact name of registrant as specified in its charter)

Missouri	001-36502	43-0889454
(State of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

1000 Walnut,
Kansas City,	MO	64106
(Address of principal executive offices)		(Zip Code)

(816) 234-2000

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

     ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

     ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

     ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

     ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of class	Trading symbol(s)	Name of exchange on which registered
$5 Par Value Common Stock	CBSH	NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition

A copy of the press release issued April 15, 2021 by Commerce Bancshares, Inc. announcing First Quarter 2021 earnings is furnished under Item 2.02 of this Current Report on Form 8-K as Exhibit 99.1. Additionally, a slide presentation for investors and analysts is being furnished as Exhibit 99.2 to this Current Report on Form 8-K.

The information in this Current Report on Form 8-K, including the exhibits, is furnished pursuant to Item 2.02 and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that Section. Furthermore, the information in this Current Report on Form 8-K, including the exhibits, shall not be deemed to be incorporated by reference into the filings of Commerce Bancshares, Inc. under the Securities Act of 1933, as amended.

All information included in this Current Report on Form 8-K is available on the Company’s Internet site at http://www.commercebank.com.

Item 9.01 Financial Statements and Exhibits

Exhibits

99.1    Press release dated April 15, 2021

99.2     Slide presentation for investors and analysts dated April 15, 2021

104    The XBRL tags on the cover page of this Form 8-K are embedded within the Inline XBRL document.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

COMMERCE BANCSHARES, INC.
By:	/s/ Paul A. Steiner
	Paul A. Steiner
	Controller (Chief Accounting Officer)

Date: April 15, 2021

EX-99.1

Exhibit 99.1

Exhibit 99.1

	CBSH
1000 Walnut Street / Suite 700 / Kansas City, Missouri 64106 / 816.234.2000

FOR IMMEDIATE RELEASE:

Thursday, April 15, 2021

COMMERCE BANCSHARES, INC. REPORTS

FIRST QUARTER EARNINGS PER SHARE OF $1.11

Commerce Bancshares, Inc. announced earnings of $1.11 per share for the three months ended March 31, 2021, compared to $.42 per common share in the same quarter last year and $1.11 per common share in the fourth quarter of 2020. Net income attributable to Commerce Bancshares, Inc. (net income) for the first quarter of 2021 amounted to $131.0 million, compared to $51.9 million in the first quarter of 2020 and $129.9 million in the prior quarter. For the quarter, the return on average assets was 1.63%, the return on average equity was 15.69% and the efficiency ratio was 56.4%.

In announcing these results, John Kemper, Chief Executive Officer, said, “This quarter we continued to see strong performance from our fee-based businesses, which are healthy and accounted for 40% of total revenue. Growth in non-interest income resulted from higher trust, mortgage banking and capital markets fees. Non-interest expense declined compared to the same quarter last year, as salaries and benefits expense was flat, while most other expense categories declined. Net income was also aided by the release of reserves for credit losses on loans. Continued economic recovery coupled with a more optimistic outlook resulted in a lower estimate of the allowance for credit losses and reduced our provision for credit losses this quarter. Net securities gains of $9.9 million were driven by an increase in the value of our portfolio of private equity investments. Compared to the previous quarter, average deposits grew $898.6 million, or 3.5%, while loan demand was mixed. Average loan balances in construction and personal real estate increased, but lower business, consumer, and consumer credit card balances kept total average loan balances relatively flat. While average business loan balances decreased $47.4 million this quarter, this includes a net decline of $102.3 million of PPP loan balances.”

Mr. Kemper continued, “This quarter, net loan charge-offs totaled $10.0 million, compared to $8.0 million in the prior quarter and $10.9 million in the first quarter of 2020. The ratio of annualized net loan charge-offs to average loans was .25% in the current quarter, .19% in the prior quarter and .30% in the first quarter of last year. Net loan charge-offs on commercial loans totaled $17 thousand this quarter compared to $572 thousand in the prior quarter. Non-performing assets decreased this quarter from $26.6 million to $23.7 million. At March 31, 2021, the allowance for credit losses on loans decreased to $200.5 million.”

Total assets at March 31, 2021 were $33.3 billion, total loans were $16.4 billion, and total deposits were $27.4 billion. During the quarter, the Company paid a cash dividend of $.263 per share, representing a 2.1% increase over the rate paid in the fourth quarter of 2020. The Company purchased 354,181 shares of its common stock this quarter.

Exhibit 99.1

Commerce Bancshares, Inc. is a regional bank holding company offering a full line of banking services, including payment solutions, investment management and securities brokerage. Commerce Bank, a subsidiary of Commerce Bancshares, Inc., leverages more than 150 years of proven strength and experience to help individuals and businesses solve financial challenges. In addition to offering payment solutions across the U.S., Commerce Bank currently operates full-service banking facilities across the Midwest including the St. Louis and Kansas City metropolitan areas, Springfield, Central Missouri, Central Illinois, Wichita, Tulsa, Oklahoma City, and Denver. It also maintains commercial offices in Dallas, Houston, Cincinnati, Nashville, Des Moines, Indianapolis, and Grand Rapids. Commerce delivers high-touch service and sophisticated financial solutions at regional branches, commercial offices, ATMs, online, mobile and through a 24/7 customer service line.

This financial news release, including management's discussion of first quarter results, is posted to the Company's web site atwww.commercebank.com.

* * * * * * * * * * * * * * *

For additional information, contact

Matthew Burkemper, Investor Relations

at 8000 Forsyth, Mailstop: CBIR-1

Clayton, MO 63105

or by telephone at (314) 746-7485

Web Site: http://www.commercebank.com

Email: matthew.burkemper@commercebank.com

Exhibit 99.1

COMMERCE BANCSHARES, INC. and SUBSIDIARIES

FINANCIAL HIGHLIGHTS

	For the Three Months Ended
(Unaudited) (Dollars in thousands, except per share data)	March 31, 2021			December 31, 2020			March 31, 2020
FINANCIAL SUMMARY
Net interest income	$205,748			$209,763			$201,065
Non-interest income	136,045			135,117			123,663
Total revenue	341,793			344,880			324,728
Investment securities gains (losses), net	9,853			12,307			(13,301)
Provision for credit losses	(6,232)			(4,403)			57,953
Non-interest expense	192,573			196,310			193,698
Income before taxes	165,305			165,280			59,776
Income taxes	32,076			33,084			10,173
Non-controlling interest (income) expense	2,257			2,307			(2,254)
Net income attributable to Commerce Bancshares, Inc.	130,972			129,889			51,857
Preferred stock dividends	—			—			2,250
Net income available to common shareholders	$130,972			$129,889			$49,607
Earnings per common share:
Net income — basic	$1.12			$1.11			$.42
Net income — diluted	$1.11			$1.11			$.42
Effective tax rate	19.67		%	20.30		%	16.40		%
Tax equivalent net interest income	$208,774			$213,017			$204,402
Average total interest earning assets (1)	$	31,278,721		$	30,297,922		$	24,691,014
Diluted wtd. average shares outstanding	116,573,405			116,507,841			116,944,735
RATIOS
Average loans to deposits (2)	61.79		%	64.05		%	72.57		%
Return on total average assets	1.63			1.63			0.80
Return on average common equity(3)	15.69			15.49			6.48
Non-interest income to total revenue	39.80			39.18			38.08
Efficiency ratio (4)	56.37			56.68			59.17
Net yield on interest earning assets	2.71			2.80			3.33
EQUITY SUMMARY
Cash dividends per common share	$.263			$.257			$.257
Cash dividends on common stock	$30,799			$30,178			$30,292
Cash dividends on preferred stock	$—			$—			$2,250
Book value per common share (5)	$28.34			$29.03			$26.54
Market value per common share (5)	$76.61			$65.70			$47.95
High market value per common share	$83.06			$68.09			$68.50
Low market value per common share	$64.76			$52.10			$43.34
Common shares outstanding (5)	117,077,276			117,138,431			117,112,060
Tangible common equity to tangible assets (6)	9.57		%	9.92		%	11.13		%
Tier I leverage ratio	9.38		%	9.45		%	11.13		%
OTHER QTD INFORMATION
Number of bank/ATM locations	298			306			317
Full-time equivalent employees	4,619			4,766			4,854

(1)Excludes allowance for credit losses on loans and unrealized gains/(losses) on available for sale debt securities.

(2)Includes loans held for sale.

(3)Annualized net income available to common shareholders divided by average total equity less preferred stock.

(4)The efficiency ratio is calculated as non-interest expense (excluding intangibles amortization) as a percent of revenue.

(5)As of period end.

(6)The tangible common equity ratio is calculated as stockholders’ equity reduced by preferred stock, goodwill and other intangible assets (excluding mortgage servicing rights) divided by total assets reduced by goodwill and other intangible assets (excluding mortgage servicing rights).

All share and per share amounts have been restated to reflect the 5% stock dividend distributed in December 2020.

Exhibit 99.1

COMMERCE BANCSHARES, INC. and SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

	For the Three Months Ended
(Unaudited) (In thousands, except per share data)	March 31, 2021		December 31, 2020		September 30, 2020		June 30, 2020		March 31, 2020
Interest income	$209,697		$214,726		$223,114		$213,323		$221,485
Interest expense	3,949		4,963		7,152		10,266		20,420
Net interest income	205,748		209,763		215,962		203,057		201,065
Provision for credit losses	(6,232)		(4,403)		3,101		80,539		57,953
Net interest income after credit losses	211,980		214,166		212,861		122,518		143,112
NON-INTEREST INCOME
Bank card transaction fees	37,695		39,979		37,873		33,745		40,200
Trust fees	44,127		41,961		40,769		37,942		39,965
Deposit account charges and other fees	22,575		24,164		23,107		22,279		23,677
Capital market fees	4,981		3,826		3,194		3,772		3,790
Consumer brokerage services	4,081		3,996		4,011		3,011		4,077
Loan fees and sales	10,184		9,031		9,769		4,649		3,235
Other	12,402		12,160		10,849		12,117		8,719
Total non-interest income	136,045		135,117		129,572		117,515		123,663
INVESTMENT SECURITIES GAINS (LOSSES), NET	9,853		12,307		16,155		(4,129)		(13,301)
NON-INTEREST EXPENSE
Salaries and employee benefits	129,033		129,983		127,308		126,759		128,937
Net occupancy	12,021		11,570		12,058		11,269		11,748
Equipment	4,353		4,526		4,737		4,755		4,821
Supplies and communication	4,125		4,193		4,141		4,427		4,658
Data processing and software	25,463		24,323		23,610		23,837		23,555
Marketing	5,158		5,028		4,926		3,801		5,979
Other	12,420		16,687		14,078		12,664		14,000
Total non-interest expense	192,573		196,310		190,858		187,512		193,698
Income before income taxes	165,305		165,280		167,730		48,392		59,776
Less income taxes	32,076		33,084		34,375		9,661		10,173
Net income	133,229		132,196		133,355		38,731		49,603
Less non-controlling interest expense (income)	2,257		2,307		907		(1,132)		(2,254)
Net income attributable to Commerce Bancshares, Inc.	130,972		129,889		132,448		39,863		51,857
Less preferred stock dividends	—		—		7,466		2,250		2,250
Net income available to common shareholders	$130,972		$129,889		$124,982		$37,613		$49,607
Net income per common share — basic	$1.12		$1.11		$1.06		$.32		$.42
Net income per common share — diluted	$1.11		$1.11		$1.06		$.32		$.42
OTHER INFORMATION
Return on total average assets	1.63	%	1.63	%	1.71	%	.54	%	.80	%
Return on average common equity (1)	15.69		15.49		15.21		4.77		6.48
Efficiency ratio (2)	56.37		56.68		55.00		58.10		59.17
Effective tax rate	19.67		20.30		20.61		19.51		16.40
Net yield on interest earning assets	2.71		2.80		2.97		2.94		3.33
Tax equivalent net interest income	$208,774		$213,017		$219,118		$206,253		$204,402

(1)Annualized net income available to common shareholders divided by average total equity less preferred stock.

(2)The efficiency ratio is calculated as non-interest expense (excluding intangibles amortization) as a percent of revenue.

Exhibit 99.1

COMMERCE BANCSHARES, INC. and SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS - PERIOD END

(Unaudited) (In thousands)	March 31, 2021		December 31, 2020		March 31, 2020
ASSETS
Loans
Business	$	6,624,209	$	6,546,087	$	5,773,865
Real estate — construction and land	1,073,036		1,021,595		873,402
Real estate — business	3,017,242		3,026,117		2,960,308
Real estate — personal	2,828,418		2,820,030		2,464,819
Consumer	1,966,833		1,950,502		1,941,787
Revolving home equity	285,261		307,083		349,735
Consumer credit card	593,833		655,078		706,753
Overdrafts	3,239		3,149		3,143
Total loans	16,392,071		16,329,641		15,073,812
Allowance for credit losses on loans	(200,527)		(220,834)		(171,653)
Net loans	16,191,544		16,108,807		14,902,159
Loans held for sale	38,076		45,089		6,214
Investment securities:
Available for sale debt securities	12,528,203		12,449,264		8,678,586
Trading debt securities	26,925		35,321		24,291
Equity securities	4,337		4,363		4,038
Other securities	155,913		156,745		155,074
Total investment securities	12,715,378		12,645,693		8,861,989
Federal funds sold and short-term securities purchased under agreements to resell	500		—		400
Long-term securities purchased under agreements to resell	850,000		850,000		850,000
Interest earning deposits with banks	2,017,128		1,747,363		474,156
Cash and due from banks	338,666		437,563		401,185
Premises and equipment — net	371,737		371,083		369,745
Goodwill	138,921		138,921		138,921
Other intangible assets — net	13,098		11,207		8,433
Other assets	594,738		567,248		779,815
Total assets	$	33,269,786	$	32,922,974	$	26,793,017
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deposits:
Non-interest bearing	$	11,076,556	$	10,497,598	$	6,952,236
Savings, interest checking and money market	14,572,378		14,604,456		12,049,279
Certificates of deposit of less than $100,000	504,472		529,802		619,758
Certificates of deposit of $100,000 and over	1,267,219		1,314,889		1,154,590
Total deposits	27,420,625		26,946,745		20,775,863
Federal funds purchased and securities sold under agreements to repurchase	1,938,110		2,098,383		1,428,013
Other borrowings	3,791		802		756,461
Other liabilities	589,875		477,072		580,216
Total liabilities	29,952,401		29,523,002		23,540,553
Stockholders’ equity:
Preferred stock	—		—		144,784
Common stock	589,352		589,352		563,978
Capital surplus	2,420,393		2,436,288		2,133,623
Retained earnings	173,173		73,000		224,643
Treasury stock	(39,080)		(32,970)		(69,149)
Accumulated other comprehensive income	168,752		331,377		253,136
Total stockholders’ equity	3,312,590		3,397,047		3,251,015
Non-controlling interest	4,795		2,925		1,449
Total equity	3,317,385		3,399,972		3,252,464
Total liabilities and equity	$	33,269,786	$	32,922,974	$	26,793,017

Exhibit 99.1

COMMERCE BANCSHARES, INC. and SUBSIDIARIES

AVERAGE BALANCE SHEETS

(Unaudited) (In thousands)	For the Three Months Ended
	March 31, 2021		December 31, 2020		September 30, 2020		June 30, 2020		March 31, 2020
ASSETS:
Loans:
Business	$	6,532,921	$	6,580,300	$	6,709,200	$	6,760,827	$	5,493,657
Real estate — construction and land	1,091,969		1,032,891		974,346		895,648		924,086
Real estate — business	3,022,979		3,029,799		2,989,652		2,962,076		2,853,632
Real estate — personal	2,826,112		2,778,462		2,722,300		2,582,484		2,390,716
Consumer	1,947,322		1,981,033		1,992,314		1,944,265		1,950,491
Revolving home equity	299,371		316,895		329,361		343,210		350,256
Consumer credit card	608,747		638,161		646,185		663,911		727,569
Overdrafts	3,546		3,762		2,689		2,912		4,044
Total loans	16,332,967		16,361,303		16,366,047		16,155,333		14,694,451
Allowance for credit losses on loans	(220,512)		(235,484)		(240,286)		(171,616)		(139,482)
Net loans	16,112,455		16,125,819		16,125,761		15,983,717		14,554,969
Loans held for sale	35,814		30,577		24,728		6,363		12,875
Investment securities:
U.S. government and federal agency obligations	725,367		774,640		770,361		776,240		802,556
Government-sponsored enterprise obligations	50,801		69,133		102,749		114,518		134,296
State and municipal obligations	1,958,637		1,967,408		1,767,526		1,285,427		1,222,595
Mortgage-backed securities	6,998,521		6,646,345		6,259,926		5,325,720		4,685,782
Asset-backed securities	2,085,491		1,819,467		1,520,988		1,342,518		1,182,556
Other debt securities	570,115		533,646		514,166		406,665		321,733
Unrealized gain on debt securities	283,511		329,477		368,154		281,457		191,275
Total available for sale debt securities	12,672,443		12,140,116		11,303,870		9,532,545		8,540,793
Trading debt securities	32,320		28,040		27,267		31,981		34,055
Equity securities	4,321		4,221		4,193		4,137		4,273
Other securities	154,030		130,145		120,253		139,250		144,096
Total investment securities	12,863,114		12,302,522		11,455,583		9,707,913		8,723,217
Federal funds sold and short-term securities purchased under agreements to resell	7		355		337		92		326
Long-term securities purchased under agreements to resell	849,999		849,998		849,994		850,000		850,000
Interest earning deposits with banks	1,480,331		1,082,644		1,024,435		1,755,068		601,420
Other assets	1,308,105		1,291,907		1,389,683		1,461,528		1,368,464
Total assets	$	32,649,825	$	31,683,822	$	30,870,521	$	29,764,681	$	26,111,271
LIABILITIES AND EQUITY:
Non-interest bearing deposits	$	10,438,637	$	10,275,735	$	9,801,562	$	8,843,408	$	6,615,108
Savings	1,333,177		1,234,481		1,193,079		1,111,397		952,709
Interest checking and money market	12,970,629		12,198,928		11,731,494		11,441,694		10,777,400
Certificates of deposit of less than $100,000	516,728		542,212		573,207		605,136		622,840
Certificates of deposit of $100,000 and over	1,230,075		1,339,301		1,447,968		1,346,069		1,299,443
Total deposits	26,489,246		25,590,657		24,747,310		23,347,704		20,267,500
Borrowings:
Federal funds purchased and securities sold under agreements to repurchase	2,166,072		2,028,457		1,855,971		1,991,971		1,990,051
Other borrowings	831		1,013		1,225		345,162		161,698
Total borrowings	2,166,903		2,029,470		1,857,196		2,337,133		2,151,749
Other liabilities	608,212		727,569		899,890		763,524		466,980
Total liabilities	29,264,361		28,347,696		27,504,396		26,448,361		22,886,229
Equity	3,385,464		3,336,126		3,366,125		3,316,320		3,225,042
Total liabilities and equity	$	32,649,825	$	31,683,822	$	30,870,521	$	29,764,681	$	26,111,271

Exhibit 99.1

COMMERCE BANCSHARES, INC. and SUBSIDIARIES

AVERAGE RATES

(Unaudited)	For the Three Months Ended
	March 31, 2021		December 31, 2020		September 30, 2020		June 30, 2020		March 31, 2020
ASSETS:
Loans:
Business(1)	3.09	%	3.01	%	2.95	%	2.91	%	3.50	%
Real estate — construction and land	3.54		3.72		3.74		3.95		4.78
Real estate — business	3.52		3.51		3.53		3.71		4.16
Real estate — personal	3.40		3.44		3.56		3.69		3.83
Consumer	4.02		4.07		4.19		4.48		4.78
Revolving home equity	3.38		3.37		3.29		3.50		4.61
Consumer credit card	10.97		11.60		11.40		11.76		12.26
Overdrafts	—		—		—		—		—
Total loans	3.66		3.69		3.69		3.80		4.39
Loans held for sale	3.44		3.54		4.25		8.03		6.15
Investment securities:
U.S. government and federal agency obligations	2.54		2.63		3.71		.46		2.09
Government-sponsored enterprise obligations	2.36		2.23		2.17		3.51		4.19
State and municipal obligations(1)	2.46		2.44		2.53		2.97		3.11
Mortgage-backed securities	1.39		1.37		1.95		2.17		2.37
Asset-backed securities	1.39		1.59		1.90		2.25		2.63
Other debt securities	2.15		2.19		2.35		2.49		2.94
Total available for sale debt securities	1.67		1.70		2.18		2.18		2.54
Trading debt securities(1)	1.08		1.40		1.66		2.93		2.52
Equity securities (1)	49.56		50.71		47.15		48.42		46.78
Other securities (1)	5.26		10.03		6.74		4.36		5.31
Total investment securities	1.72		1.81		2.24		2.24		2.61
Federal funds sold and short-term securities purchased under agreements to resell	—		1.12		—		—		2.47
Long-term securities purchased under agreements to resell	5.31		5.24		5.26		5.08		3.53
Interest earning deposits with banks	.10		.10		.10		.10		.86
Total interest earning assets	2.76		2.86		3.07		3.09		3.66
LIABILITIES AND EQUITY:
Interest bearing deposits:
Savings	.08		.09		.09		.09		.11
Interest checking and money market	.06		.07		.10		.13		.30
Certificates of deposit of less than $100,000	.37		.51		.71		.93		1.15
Certificates of deposit of $100,000 and over	.35		.47		.69		1.08		1.62
Total interest bearing deposits	.09		.12		.18		.25		.45
Borrowings:
Federal funds purchased and securities sold under agreements to repurchase	.06		.06		.09		.12		.96
Other borrowings	.98		—		—		.82		.82
Total borrowings	.06		.06		.09		.22		.95
Total interest bearing liabilities	.09	%	.11	%	.17	%	.25	%	.52	%
Net yield on interest earning assets	2.71	%	2.80	%	2.97	%	2.94	%	3.33	%

(1) Stated on a tax equivalent basis using a federal income tax rate of 21%.

Exhibit 99.1

COMMERCE BANCSHARES, INC. and SUBSIDIARIES

CREDIT QUALITY

	For the Three Months Ended
(Unaudited) (In thousands, except per share data)	March 31, 2021			December 31, 2020			September 30, 2020			June 30, 2020			March 31, 2020
ALLOWANCE FOR CREDIT LOSSES ON LOANS
Balance at beginning of period	$	220,834		$	236,360		$	240,744		$	171,653		$	160,682
Adoption of ASU 2016-13	—			—			—			—			(21,039)
Provision for credit losses on loans	(10,355)			(7,510)			3,200			77,491			42,868
Net charge-offs (recoveries):
Commercial portfolio:
Business	(4)			581			208			3,249			(373)
Real estate — construction and land	1			(2)			(1)			—			—
Real estate — business	20			(7)			(13)			(6)			(21)
	17			572			194			3,243			(394)
Personal banking portfolio:
Consumer credit card	8,981			5,975			7,263			3,584			9,157
Consumer	763			1,160			211			1,362			1,711
Overdraft	153			335			200			316			426
Real estate — personal	15			(18)			(198)			(71)			(4)
Revolving home equity	23			(8)			(86)			(34)			(38)
	9,935			7,444			7,390			5,157			11,252
Total net loan charge-offs	9,952			8,016			7,584			8,400			10,858
Balance at end of period	$	200,527		$	220,834		$	236,360		$	240,744		$	171,653
LIABILITY FOR UNFUNDED LENDING COMMITMENTS	$	42,430		$	38,307		$	35,200		$	35,299		$	32,250
NET CHARGE-OFF RATIOS (1)
Commercial portfolio:
Business	—		%	.04		%	.01		%	.19		%	(.03		%)
Real estate — construction and land	—			—			—			—			—
Real estate — business	—			—			—			—			—
	—			.02			.01			.12			(.02)
Personal banking portfolio:
Consumer credit card	5.98			3.72			4.47			2.17			5.06
Consumer	.16			.23			.04			.28			.35
Overdraft	17.50			35.43			29.59			43.65			42.37
Real estate — personal	—			—			(.03)			(.01)			—
Revolving home equity	.03			(.01)			(.10)			(.04)			(.04)
	.71			.52			.52			.37			.83
Total	.25		%	.19		%	.18		%	.21		%	.30		%
CREDIT QUALITY RATIOS
Non-performing assets to total loans	.14		%	.16		%	.25		%	.14		%	.07		%
Non-performing assets to total assets	.07			.08			.13			.08			.04
Allowance for credit losses on loans to total loans(2)	1.22			1.35			1.44			1.47			1.14
NON-PERFORMING ASSETS
Non-accrual loans:
Business	$	20,215		$	22,524		$	37,295		$	19,034		$	7,356
Real estate — construction and land	—			—			1			1			2
Real estate — business	1,572			2,230			1,063			1,921			1,532
Real estate — personal	1,719			1,786			1,911			1,679			1,743
Total	23,506			26,540			40,270			22,635			10,633
Foreclosed real estate	208			93			57			422			422
Total non-performing assets	$	23,714		$	26,633		$	40,327		$	23,057		$	11,055
Loans past due 90 days and still accruing interest	$	21,512		$	22,190		$	14,436		$	24,583		$	16,520

(1) As a percentage of average loans (excluding loans held for sale).

(2) Excluding PPP loans, the allowance for credit losses on loans to total loans was 1.34% and 1.48% as of March 31, 2021 and December 31, 2020, respectively.

Exhibit 99.1

COMMERCE BANCSHARES, INC.

Management Discussion of First Quarter Results

March 31, 2021

For the quarter ended March 31, 2021, net income attributable to Commerce Bancshares, Inc. (net income) amounted to $131.0 million, compared to $129.9 million in the previous quarter and $51.9 million in the same quarter last year. The increase in net income over the previous quarter was primarily the result of higher non-interest income, lower non-interest expense, and a decrease in the provision for credit losses, partly offset by lower net interest income and net securities gains. The provision for credit losses declined this quarter, compared to the prior quarter, due to a decrease in the estimate of the allowance for credit losses on loans. Net interest income decreased this quarter mostly due to lower interest earned on loans. The net yield on interest earning assets declined nine basis points. Average loans were slightly lower compared to the previous quarter, while average available for sale debt securities grew $532.3 million, and average deposits increased $898.6 million. For the quarter, the return on average assets was 1.63%, the return on average common equity was 15.69%, and the efficiency ratio was 56.4%.

Balance Sheet Review

During the 1st quarter of 2021, average loans totaled $16.3 billion, decreased $28.3 million from the prior quarter, and increased $1.6 billion, or 11.2%, over the same quarter last year. Period end loans increased $62.4 million compared to the prior quarter. Compared to the previous quarter, average balances of construction and land and personal real estate loans grew $59.1 million and $47.7 million, respectively. This growth was mostly offset by declines in business, consumer, consumer credit card, and revolving home equity loans of $47.4 million, $33.7 million, $29.4 million, and $17.5 million, respectively. The period end balance of Paycheck Protection Program (PPP) loans (included in business loans) increased $66.7 million during the 1st quarter and totaled $1.4 billion at March 31, 2021. This growth reflected $331.4 million of loan balances originated this quarter (round 2), partly offset by a decline of $264.7 million in loan balances from year end (round 1). Average PPP loan balances declined $102.3 million compared to the prior quarter. Growth in personal real estate loan balances was due to continued strong demand for residential mortgage loans this quarter. During the current quarter, the Company sold certain fixed rate personal real estate loans totaling $177.8 million, compared to $136.0 million in the prior quarter.

Total average available for sale debt securities increased $532.3 million over the previous quarter to $12.7 billion, at fair value. The increase in investment securities was mainly the result of growth in mortgage-backed and asset-backed securities. During the current quarter, purchases of securities totaled $1.3 billion with a weighted average yield of approximately .93%. Maturities and pay downs were $939.6 million. At March 31, 2021, the duration of the investment portfolio was 3.9 years, and maturities and pay downs of approximately $2.3 billion are expected to occur during the next 12 months.

Total average deposits increased $898.6 million this quarter compared to the previous quarter. The increase in deposits resulted from growth in interest checking and money market ($771.7 million), and savings deposits ($98.7 million), partly offset by a decline in certificates of deposit ($134.7 million). Average demand deposits also increased $162.9 million over the previous quarter. Compared to the previous quarter, total average consumer and wealth deposits (including private banking) grew $570.2 million and $305.2 million, respectively, while average commercial deposits declined $49.2 million. The average loans to deposits ratio was 61.8% in the current quarter and 64.1% in the prior quarter. The Company’s average borrowings, which

includes customer repurchase agreements, were $2.2 billion in the 1st quarter of 2021 and $2.0 billion in the prior quarter.

Net Interest Income

Net interest income in the 1st quarter of 2021 amounted to $205.7 million, a decrease of $4.0 million compared to the previous quarter. On a tax equivalent basis, net interest income for the current quarter decreased $4.2 million from the previous quarter to $208.8 million. The decrease in net interest income was mainly due to lower income earned on loans. The net yield on earning assets (tax equivalent) decreased to 2.71%, compared to 2.80% in the prior quarter.

Compared to the previous quarter, interest income on loans (tax equivalent) decreased $4.3 million, mostly as a result of lower yields on loans, mainly consumer credit card, personal real estate, construction and land, and consumer loans, coupled with a decline in consumer credit card average loan balances. Partially offsetting these decreases was growth in interest income due to higher average construction and land and personal real estate loan balances and higher yields on business loans. The decline in the consumer credit card yield was partially due to the reversal of interest on delinquent loans that exited the Company’s skip pay program last summer and were charged off this quarter. The average tax-equivalent yield on the loan portfolio declined three basis points to 3.66% this quarter.

Interest income on investment securities (tax equivalent) decreased $1.0 million from the previous quarter, due to lower rates earned, partly offset by higher average balances. At March 31, 2021, the Company recorded a $4.1 million adjustment to premium amortization, which increased interest income this quarter to reflect a slowdown in forward prepayment speed estimates on mortgage-backed securities due to rising interest rates during the quarter. This adjustment mostly offset higher premium amortization recorded on these securities during the quarter due to the recent surge in mortgage refinancing. Interest income earned on U.S. government and federal agency securities decreased, as Treasury inflation-protected securities inflation income declined $426 thousand this quarter to $1.5 million. The yield on total investment securities was 1.72% in the current quarter, compared to 1.81% in the previous quarter.

The average rate paid on deposits totaled nine basis points in the 1st quarter of 2021, compared to 12 basis points in the prior quarter. Interest expense on deposits decreased $1.0 million this quarter compared to the previous quarter mainly due to lower rates paid on money market and certificate of deposit accounts. The overall rate paid on interest bearing liabilities was .09% in the current quarter, compared to .11% in the prior quarter.

Non-Interest Income

In the 1st quarter of 2021, total non-interest income amounted to $136.0 million, an increase of $12.4 million, or 10.0%, compared to the same period last year and increased $928 thousand compared to the prior quarter. The increase in non-interest income over the same period last year was mainly due to growth in loan fees and sales, capital market fees, and trust fees.

Total net bank card fees in the current quarter decreased $2.5 million, or 6.2%, from the same period last year, and decreased $2.3 million, or 5.7%, compared to the prior quarter. Net corporate card fees decreased $2.7 million, or 11.8%, from the same quarter of last year mainly due to lower fee income, partly offset by lower rewards expense. Net debit card fees increased $45 thousand, or 0.5%. Net merchant income increased $226

COMMERCE BANCSHARES, INC.                                 Exhibit 99.1

Management Discussion of First Quarter Results

March 31, 2021

thousand, or 5.1%, while net credit card fees decreased $66 thousand, or 1.9%. Total net bank card fees this quarter were comprised of fees on corporate card ($20.3 million), debit card ($9.4 million), merchant ($4.6 million) and credit card ($3.4 million) transactions.

In the current quarter, trust fees increased $4.2 million, or 10.4%, over the same period last year, resulting mostly from higher private client fee income. Compared to the same period last year, deposit account fees decreased $1.1 million, or 4.7%, mainly due to lower overdraft and return item fees, partly offset by an increase in corporate cash management fees. Additionally, capital market fees grew $1.2 million, or 31.4%, while loan fees and sales, mostly mortgage banking revenue, grew $6.9 million, or 214.8%, over amounts recorded in the same quarter last year.

Other non-interest income increased over the same period last year due to gains of $2.4 million recorded this quarter on the sale of a branch location and a $1.2 million increase in swap fees. Fair value adjustments on the Company’s deferred compensation plan assets, which are held in a trust and recorded as both an asset and liability, increased $3.4 million over the same quarter last year, affecting both other income and other expense. These increases were partially offset by a $2.8 million decline in cash sweep commissions. For the 1st quarter of 2021, non-interest income comprised 39.8% of the Company’s total revenue.

Investment Securities Gains and Losses

The Company recorded net securities gains of $9.9 million in the current quarter, compared to net gains of $12.3 million in the prior quarter and net losses of $13.3 million in the 1st quarter of 2020. Net securities gains in the current quarter primarily resulted from $8.4 million of unrealized gains in fair value and $1.5 million from the sale of an investment in the Company’s private equity investment portfolio.

Non-Interest Expense

Non-interest expense for the current quarter amounted to $192.6 million, compared to $193.7 million in the same period last year and $196.3 million in the prior quarter. The decrease in non-interest expense compared to the same period last year was mainly due to lower other non-interest and marketing expense, partly offset by higher data processing and software expense.

Compared to the 1st quarter of last year, salaries and employee benefits expense was mostly flat, as a $3.6 million increase in incentive compensation was offset by decreases of $1.5 million and $1.8 million in full-time salaries and medical expense, respectively. Full-time equivalent employees totaled 4,619 and 4,854 at March 31, 2021 and 2020, respectively.

Marketing, equipment, and supplies and communication expense decreased $821 thousand, $468 thousand, and $533 thousand, respectively. These decreases were partly offset by a $1.9 million increase in data processing and software expense, which reflects continuing investment in technology.

Other non-interest expense decreased mainly due to a $2.0 million decrease in travel and entertainment expense, a $2.1 million reduction in impairment expense on mortgage servicing rights, and a $1.1 million increase in deferred loan origination costs. These decreases were partially offset by the $3.4 million deferred compensation adjustment mentioned above.

Income Taxes

The effective tax rate for the Company was 19.7% in the current

quarter, 20.3% in the previous quarter, and 16.4% in the 1st quarter of 2020.

Credit Quality

Net loan charge-offs in the 1st quarter of 2021 amounted to $10.0 million, compared to $8.0 million in the prior quarter and $10.9 million in the same period last year. The ratio of annualized net loan charge-offs to total average loans was .25% in the current quarter, .19% in the previous quarter, and .30% in the 1st quarter of last year. Compared to the prior quarter, net loan charge-offs on commercial loans decreased $555 thousand to $17 thousand, while net loan charge-offs on personal banking loans increased $2.5 million to $9.9 million.

In the 1st quarter of 2021, annualized net loan charge-offs on average consumer credit card loans were 5.98%, compared to 3.72% in the previous quarter, and 5.06% in the same quarter last year. Consumer loan net charge-offs were .16% of average consumer loans in the current quarter, .23% in the prior quarter and .35% in the same quarter last year. The elevated consumer credit card charge-off rate was mostly due to the migration of delinquent accounts that exited the Company’s skip pay program initiated last summer in response to the COVID-19 pandemic.

Actual economic data for the first quarter and the economic forecast used to estimate the allowance for credit losses in March 2021 showed improving economic conditions compared to the forecast utilized in December 2020. This improvement resulted in a decrease in the allowance for credit losses as of March 31, 2021, and also reduced the provision for credit losses this quarter compared to the prior quarter. At March 31, 2021, the allowance for credit losses on loans totaled $200.5 million, or 1.22% of total loans and 1.34% of total loans excluding PPP loans. Additionally, the liability for unfunded lending commitments at March 31, 2021 was $42.4 million, an increase of $4.1 million over the liability at December 31, 2020.

At March 31, 2021, total non-performing assets amounted to $23.7 million, a decrease of $2.9 million from the previous quarter. Non-performing assets are comprised of non-accrual loans and foreclosed real estate ($23.5 million and $208 thousand, respectively). At March 31, 2021, the balance of non-accrual loans, which represented .14% of loans outstanding, included business loans of $20.5 million, business real estate loans of $1.6 million, and personal real estate loans of $1.7 million. Loans more than 90 days past due and still accruing interest totaled $21.5 million at March 31, 2021.

Other

During the 1st quarter of 2021, the Company paid a cash dividend of $.263 per common share, representing a 2.1% increase over the same period last year. The Company purchased 354,181 shares of treasury stock during the current quarter at an average price of $73.19.

Forward Looking Information

This information contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intentions and other statements that are not historical facts. Such statements are based on current beliefs and expectations of the Company’s management and are subject to significant risks and uncertainties. Actual results may differ materially from those set forth in the forward-looking statements.

EX-99.2

COMMERCE BANCSHARES, INC. EARNINGS HIGHLIGHTS 1st Quarter 2021

CAUTIONARY STATEMENT A number of statements we will be making in our presentation and in the accompanying slides are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, such as statements of the Corporation’s plans, goals, objectives, expectations, projections, estimates and intentions. These forward- looking statements involve significant risks and uncertainties and are subject to change based on various factors (some of which are beyond the Corporation’s control). Factors that could cause the Corporation’s actual results to differ materially from such forward- looking statements made herein or by management of the Corporation are set forth in the Corporation’s 2020 Annual Report on Form 10-K, and the Corporation’s Current Reports on Form 8-K.

$1.11 EPS 3 • Allowance for credit losses on loans to total loans decreased to 1.22% – Decreased to 1.34% excluding Paycheck Protection Program (“PPP”) loans. • Net charge-offs to total loans of 0.25% and non-performing assets to total loans of 0.14%. • Loans on deferral of .9% of total loans. • Non-interest income to total revenue of 39.8%. • Non-interest income up 0.7% over Q4. • QTD average loans down slightly from Q4 at $16.3B. • QTD average deposits increased $0.9B in Q1 compared to Q4. • Tangible common equity to tangible assets of 9.57%. • Net interest margin decreased 9 bps from Q4 to 2.71%. • Wealth management client assets increased in Q1 by 2.2% to $62.6B. Highlights Well-positioned in a challenging environment 1Q2021 EARNINGS HIGHLIGHTS $149.2 million PPNR1 $20.3 million decrease Allowance for Credit Losses on Loans2 $131.0 million Net Income 15.69% ROACE $0.5 billion Deposit Growth3 1 See the non-GAAP reconciliation on page 17; 2 Compared to 4Q2020; 3 Compared to 4Q2020, based on period-end balances 1.63% ROAA

Average Balances Change vs. $ in millions 1Q21 4Q20 1Q20 Highlights Commercial1 $10,647.9 $4.9 $1,376.5 • Linked quarter (LQ) reflects lower business loans offset by higher construction loans • YoY reflects PPP Consumer 5,685.1 (33.2) 262.0 • LQ reflects higher personal real estate partially offset by lower auto, credit card, home equity Total Loans $16,333.0 $(28.3) $1,638.5 Investment Securities $12,863.1 $560.6 $4,139.9 • Reflects net purchase activity Interest Earning Deposits with Banks $1,480.3 $397.7 $878.9 • Reflects liquidity from deposit growth Deposits $26,489.2 $898.6 $6,221.7 • 3.5% quarterly growth, 31% annual growth Equity $3,385.5 $49.3 $160.4 • 5% annual growth Book Value per Common Share2 $28.34 $(.69) $1.80 • 2.4% quarterly decline, 6.8% annual growth BALANCE SHEET HIGHLIGHTS 4 1 PPP QTD average balances were $1,374.0 million and $1,476.2 million as of March 31, 2021 and December 31, 2020, respectively 2 For the quarters ended March 31, 2021, December 31, 2020 and March 31, 2020

$13.7 $15.3 $16.1 $6.6 $10.3 $10.4 4Q20 $26.5 1Q20 1Q21 $20.3 $25.6 +31% $9.3 $10.7 $10.6 $5.4 $5.7 $5.7 4Q201Q20 1Q21 $14.7 $16.4 $16.3 +11% BALANCE SHEET 5 Loans Consumer Loans Loan Yield Commercial Loans Deposits QTD Average Balances $ billions Non-Interest Bearing Interest Bearing Deposit Interest Bearing Deposit Yield QTD Average Balances $ billions 4.39% 3.69% 3.66% 0.45% 0.12% 0.09%

Change vs. $ in millions 1Q21 4Q20 1Q20 Highlights Net Interest Income $205.7 $(4.0) $4.7 • Linked quarter (LQ) decline due to lower earning asset yields partially offset by lower deposit costs and a larger balance sheet Non-Interest Income $136.0 $0.9 $12.4 • LQ increase in trust fees, capital market fees and loan fees and sales • Prior year (PY) increase mainly due to growth in loan fees and sales, capital market fees and trust fees; current year included a gain on a branch sale Non-Interest Expense $192.6 $(3.7) $(1.1) • Decrease of 1.9% over LQ, .6% over PY • Salaries and benefits expense flat to PY Pre-Tax, Pre-Provision Net Revenue1 $149.2 $0.7 $18.2 Investment Securities Gains (Losses), Net $9.9 $(2.5) $23.2 • Q1 unrealized fair value gains of $8.4MM and a $1.5MM gain on sale of an investment in the private equity portfolio Provision for Credit Losses $(6.2) $(1.8) $(64.2) • Declines primarily driven by improvement in economic forecast Net-Income Available to Common Shareholders $131.0 $1.1 $81.4 1Q21 4Q20 1Q20 Net Income per Common Share – Diluted $1.11 $1.11 $.42 Efficiency Ratio 56.37% 56.68% 59.17% • Continued expense discipline Net Yield on Interest Earning Assets 2.71% 2.80% 3.33% • Lower earning asset yields, partially offset by lower deposit costs INCOME STATEMENT HIGHLIGHTS 61 See the non-GAAP reconciliation on page 17

7 PRE-TAX, PRE-PROVISION NET REVENUE (PPNR) $124 $131 $201 $194 1Q2020 $325 $135 $149 $210 $196 4Q2020 $345 $136 $149 $206 $193 $342 1Q2021 Non-Interest Income (+) Net Interest Income (+) Non-Interest Expense (-) Pre-Tax, Pre-Provision Net Revenue (=) 1Q2021 Comparison vs. 1Q2020 13.9% vs. 4Q2020 0.4% See the non-GAAP reconciliation on page 17

Average Loan to Deposit Ratio3 SOUND CAPITAL AND LIQUIDITY POSITION 8 Tier 1 Risk-Based Capital Ratio1 1S&P Global Market Intelligence, Information as of December 31, 2020 2Period-end balances, as of March 31, 2021 3Includes loans held for sale, for the quarter ended March 31, 2021 13.7% 13.7% 13.5% 13.4% 13.4% 13.3% 12.3% 12.1% 12.0% 12.0% 11.8% 11.8% 11.7% 11.6% 10.9% 10.7% 10.6% 10.5% 10.2% 10.0% WBS CBSH UMBF CFR UBSI OZK SFNC UMPQ BOKF ONB VLY BXS FCNC.A ASB HWC PNFP FULT FNB WTFC PB Peer Median: 11.8% Core Deposits $25.6 Billion2 Large, stable deposit base and low loan to deposit ratio Loan to Deposit Ratio Total Deposits 62% Average Loan to Deposit Ratio185%Peer Average Commerce 94%6% Core Deposits - Non-Interest Bearing - Interest Checking - Savings and Money Market Certificates of Deposit

$10.9 $8.0 $10.0 $12.3 $11.3 4Q201Q20 1Q21 MAINTAINING STRONG CREDIT QUALITY 9 Net Loan Charge-Offs (NCOs) $ in millions NCOs - Peer Average NCOs- CBSH NCO/Average Loans1 - CBSH $171.7 $220.8 $200.5 $261.0 $297.9 4Q201Q20 1Q21 Allowance for Credit Losses on Loans (ACL) $ in millions ACL - CBSH ACL - Peer Average ACL / Total Loans - CBSH $10.6 $26.5 $23.5 $139.4 $141.2 4Q201Q20 1Q21 Non-Performing Loans (NPLs) $ in millions NPLs - Peer Average NPLs - CBSH 16.1x 8.3x 8.5x 2.5x 2.6x 1Q20 1Q214Q20 Allowance for Credit Losses on Loans (ACL) to NPLs ACL / NPLs - CBSH ACL / NPLs - Peer Average Percentages are illustrative and not to scale; Peer Banks include: ASB, BOKF, BXS CFR, FCNC.A, FNB, FULT, HWC, ONB, OZK, PB, PNFP, SFNC, UBSI, UMBF, UMPQ, VLY, WBS, WTFC 1As a percentage of average loans (excluding loans held for sale) NPLs / Total Loans - CBSH NCO/Average Loans1 – Peer Average .07% NPLs / Total Loans – Peer Average .16% .14% .71% .67% ACL / Total Loans – Peer Average 1.14% 1.35% 1.22%1.33% 1.42% .30% .19% .25%.26% .21%

CONSUMER CREDIT CARD DELINQUENCIES AND MONTHLY NET CHARGE-OFF TRENDS • Skip Pay was enacted for May and June 2020 payments to 100% of the portfolio • Delinquency and net charge-off levels have normalized $0 $1 $2 $3 $4 $5 $6 $0 $3 $6 $9 $12 $15 Dec18 Mar19 Jun19 Sep19 Dec19 Dec20Sep20Jun20Mar20 Mar21 Credit card - 90-Day Delinquencies (left) Credit Card - Net Charge-Offs (right) 10 Skip Pay program effectively “paused” delinquency and charge-offs in 2020 9 0 -D a y D el in q ue nc ie s $ in m ill io ns N et C ha rg e-o ffs $ in m illio ns

$0 $10 $30 $20 3Q201Q20 4Q202Q20 1Q21 0.45% 0.18% 0.12% 0.09% 0.0% 0.1% 0.2% 0.3% 0.4% 0.5% 0.25% $850 $850 $850 $850 $850 3.5% 5.1% 5.3% 5.2% 5.3% 0% 2% 4% 6% 8% $0 $200 $400 $600 $800 $1,000 2Q20 4Q201Q20 1Q213Q20 NIM PROTECTION Hedging structures and low deposit costs provide support to net interest margin in low-rate environment • Interest rate floors with a combined notional value of $1.5B to hedge the against declining interest rates were monetized in 2020 with $133MM in gains to be recognized through 2026. • Asset repo agreements were structured with floor spreads to protect against falling rates. Asset repo agreements start maturing in Q2 2021. • 39% of Q1 average deposits were non-interest bearing. • Cost of interest-bearing deposits continued to decline. Non Interest-Bearing Deposits (left) Interest-bearing Deposits (left) Asset Repo Agreements A ve ra g e Ba la nc e $ in m ill io ns Asset Repo Agreements (left) Yield (right) Total Deposits A ve ra g e Ba la nc e $ in b ill io ns Cost of Interest-Bearing Deposits (right) 11

PAYCHECK PROTECTION PROGRAM IMPACT AND UPDATE 12 Yield and Interest Income Q1 2021, $ in millions 3.09% 3.55% 2.97% Yield Business Loans2 PPP Yield and Fee Recognition Business Loans (ex PPP) $49.7 $12.0 $37.7 Interest Income Loan Balance Round 1 Round 2$1.5 Billion1 $331.4 Million Customers Round 1 Round 27,500 Over 3,200 Over Median Loan Size Round 1 Round 2$33M $21M Total SBA Fees Round 1 $41.0 Million SBA Fees Recognized Round 1 $41.0 Million 2020 YTD 2021 $21.4 Million $9.3 Million Round 2 information through March, 31, 2021 1Total funded amount in Round 1; 2Tax equivalent basis

ALLOCATION OF ALLOWANCE 13 CECL allowances reflect the economic and market outlook December 31, 2020 CECL Model March 31, 2021 CECL Model $ in millions Allowance for Credit Losses (ACL) % of Outstanding Loans Allowance for Credit Losses (ACL) % of Outstanding Loans Business $ 63.7 .97% $ 50.6 .76% Bus R/E 30.1 .99% 35.6 1.18% Construction 27.7 2.72% 33.4 3.11% Commercial total $ 121.5 1.15% $ 119.6 1.12% Consumer 15.2 .78% 13.4 .68% Consumer CC 74.0 11.30% 59.5 10.03% Personal R/E 8.3 .29% 6.6 .23% Revolving H/E 1.5 .48% 1.2 .44% Overdrafts .3 8.29% .2 4.6% Consumer total $ 99.3 1.73% $ 80.9 1.42% Allowance for credit losses on loans $ 220.8 1.35% $ 200.5 1.22% 1.47% 1.44% 0.7% 0.8% 0.9% 1.0% 1.1% 1.2% 1.3% 1.4% 1.5% $100 $150 $200 $250 0.95% 1.22% $139.6 1Q201/1/2020 $171.7 $240.7 2Q20 $236.4 3Q20 $220.8 1.35% 4Q20 $200.5 1Q21 1.14% Allowance for Credit Losses (ACL) on Loans ACL - Loans (left) ACL / Total Loans (right) $ in millions

PROVIDING RELIEF TO OUR CUSTOMERS Active deferral exposure reduced as pandemic continues 14 Payment Relief Requests 1Deferrals are defined as modifications, payment deferrals, forbearance agreements, or change in terms, % of Portfolio calculated on Total Loans (excluding PPP loans); 2 No direct consumer credit exposure Active deferrals1 as of December 31, 2020 Active deferrals1 as of March 31, 2021 Loan Type Number of Requests % of Portfolio (by $ amount) Total Amount of Requests Number of Requests % of Portfolio (by $ amount) Total Amount of Requests Commercial 8 .6% $57MM 8 1.3% $117MM Mortgage 86 .7% $18MM 55 .5% $12MM Consumer Card 93 .1% $0.6MM 18 <.1% $.1MM Installment 500 .6% $8MM 214 .3% $4MM Med/HSF2 109 .1% $0.3MM 85 .1% $.2MM TOTAL 796 .6% $84MM 380 .9% $133MM

LOAN PORTFOLIO: LIMITED EXPOSURE TO PANDEMIC-SENSITIVE INDUSTRIES 15 Highest Impacted Industries $ in millions 12/31 $ in millions 3/31 % of Loan Portfolio 3/31 CRE Retail 387 388 2.6% Hotels 303 309 2.1% Senior Living 311 307 2.0% Energy 173 186 1.2% Retail Stores 111 118 .8% Restaurants 67 64 .4% Total $1,352 $1,372 9.1% 9% 91% Highest Impacted Industries All Other Loans Industry breakdowns represent outstanding balances, excluding PPP loans, as of March 31, 2021, segmented by NAICS codes Loan Portfolio Outstandings

Quick Facts: Small Business Investment Company (SBIC) founded in 1959 Nationwide footprint with Greater Midwest Focus 32 Portfolio Companies Representing $675MM in Revenue 2,600 Employees Fair Value as of March 31, 2021: $94.3MM Investment Criteria • Manufacturing, distribution and certain service companies • Cash flow positive • Good management • Consistent financial performers • Operate in niche markets • Significant and defensible market positions • Differentiated products and services • Scalable business platforms Target Parameters • Revenues - $10 million to $100 million • EBITDA - $2 million to $7 million CAPITAL FOR BUSINESS® A middle-market private equity firm focused on the success of industrial growth companies Transaction Types Management buyouts Leveraged buyouts Succession plans Recapitalizations Corporate divestitures Investment Structures Subordinated debt Preferred stock Common stock Warrants Other Information Co-investors Majority control Target 5-7 year hold period Management participation 16

NON-GAAP RECONCILIATIONS 17 For The Three Months Ended (DOLLARS IN THOUSANDS) Mar. 31, 2021 Dec. 31, 2020 Mar. 31, 2020 A Net Interest Income $ 205,748 $ 209,763 $ 201,065 B Non-Interest Income $ 136,045 $ 135,117 $ 123,663 C Non-Interest Expense $ 192,573 $ 196,310 $ 193,698 Pre-Provision Net Revenue (A+B-C) $ 149,220 $ 148,570 $ 131,030 Pre-tax, Pre-provision Net Revenue

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Document and Entity Information Document	Apr. 15, 2021
Cover [Abstract]
Document Type	8-K
Document Period End Date	Apr. 15, 2021
Entity Registrant Name	Commerce Bancshares, Inc.
Entity Incorporation, State or Country Code	MO
Entity File Number	001-36502
Entity Tax Identification Number	43-0889454
Entity Address, Address Line One	1000 Walnut,
Entity Address, City or Town	Kansas City,
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	64106
City Area Code	816
Local Phone Number	234-2000
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Title of 12(b) Security	$5 Par Value Common Stock
Trading Symbol	CBSH
Security Exchange Name	NASDAQ
Entity Emerging Growth Company	false
Amendment Flag	false
Entity Central Index Key	0000022356