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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Schedule of components of income tax provision
Details of the Company’s income tax provision are presented below:

In millions of dollars202120202019
Current   
Federal$522 $305 $365 
Non-U.S.3,288 4,113 4,352 
State228 440 323 
Total current income taxes$4,038 $4,858 $5,040 
Deferred   
Federal$1,059 $(1,430)$(907)
Non-U.S.8 (690)10 
State346 (213)287 
Total deferred income taxes$1,413 $(2,333)$(610)
Provision for income tax on continuing operations before noncontrolling interests(1)
$5,451 $2,525 $4,430 
Provision (benefit) for income taxes on discontinued operations — (27)
Income tax expense (benefit) reported in stockholders’ equity related to: 
FX translation(146)23 (11)
Investment securities(1,367)1,214 648 
Employee stock plans(6)(4)(16)
Cash flow hedges(476)455 269 
Benefit plans240 (23)(119)
FVO DVA64 (141)(337)
Excluded fair value hedges2 (8)
Retained earnings(2)
 (911)46 
Income taxes before noncontrolling interests$3,762 $3,130 $4,891 

(1)Includes the tax on realized investment gains and impairment losses resulting in a provision (benefit) of $169 million and $(57) million in 2021, $454 million and $(14) million in 2020 and $373 million and $(9) million in 2019, respectively.
(2)2020 reflects the tax effect of ASU 2016-13 for current expected credit losses (CECL). 2019 reflects the tax effect of the accounting change for ASU 2016-02 for lease transactions.
Schedule of effective income tax rate reconciliation
The reconciliation of the federal statutory income tax rate to the Company’s effective income tax rate applicable to income from continuing operations (before noncontrolling interests and the cumulative effect of accounting changes) for each of the periods indicated is as follows:

 202120202019
Federal statutory rate21.0 %21.0 %21.0 %
State income taxes, net of federal benefit2.1 1.3 1.9 
Non-U.S. income tax rate differential1.6 3.5 1.3 
Nondeductible FDIC premiums0.6 1.3 0.4 
Tax advantaged investments(2.3)(4.4)(2.3)
Valuation allowance releases(1)
(1.7)(4.4)(3.0)
Other, net(1.5)0.2 (0.8)
Effective income tax rate19.8 %18.5 %18.5 %

(1)See “Deferred Tax Assets” below for a description of the components.
Schedule of deferred tax assets and liabilities
Deferred income taxes at December 31 related to the following:

In millions of dollars20212020
Deferred tax assets  
Credit loss deduction$5,330 $6,791 
Deferred compensation and employee benefits2,335 2,510 
U.S. tax on non-U.S. earnings1,138 1,195 
Investment and loan basis differences2,970 1,486 
Tax credit and net operating loss carry-forwards15,620 17,416 
Fixed assets and leases3,064 2,935 
Other deferred tax assets3,549 3,832 
Gross deferred tax assets$34,006 $36,165 
Valuation allowance$4,194 $5,177 
Deferred tax assets after valuation allowance$29,812 $30,988 
Deferred tax liabilities  
Intangibles and leases$(2,446)$(2,526)
Non-U.S. withholding taxes(987)(921)
Interest-related items (597)
Other deferred tax liabilities(1,590)(2,104)
Gross deferred tax liabilities$(5,023)$(6,148)
Net deferred tax assets$24,789 $24,840 
Summary of unrecognized tax benefits
The following is a rollforward of the Company’s unrecognized tax benefits:

In millions of dollars202120202019
Total unrecognized tax benefits at January 1$861 $721 $607 
Net amount of increases for current year’s tax positions97 51 50 
Gross amount of increases for prior years’ tax positions515 217 151 
Gross amount of decreases for prior years’ tax positions(107)(74)(44)
Amounts of decreases relating to settlements(64)(40)(21)
Reductions due to lapse of statutes of limitation(2)(13)(23)
Foreign exchange, acquisitions and dispositions(4)(1)
Total unrecognized tax benefits at December 31$1,296 $861 $721 
Schedule of income tax penalties and interest accrued Interest and penalties (not included in unrecognized tax benefits above) are a component of Provision for income taxes
 202120202019
In millions of dollarsPretaxNet of taxPretaxNet of taxPretaxNet of tax
Total interest and penalties on the Consolidated Balance Sheet at January 1$118 $96 $100 $82 $103 $85 
Total interest and penalties in the Consolidated Statement of Income32 24 14 10 (4)(4)
Total interest and penalties on the Consolidated Balance Sheet at December 31(1)
214 164 118 96 100 82 

(1)Includes $3 million, $4 million and $3 million for non-U.S. penalties in 2021, 2020 and 2019, respectively. Also includes $0 million, $1 million and $1 million for state penalties in 2021, 2020 and 2019, respectively.
Schedule of major jurisdictions and earliest tax year subject to examination
The following are the major tax jurisdictions in which the Company and its affiliates operate and the earliest tax year subject to examination:

JurisdictionTax year
United States2016
Mexico2016
New York State and City2009
United Kingdom2016
India2017
Singapore2019
Hong Kong2015
Ireland2017
Schedule of deferred tax assets and liabilities by jurisdiction
The following table summarizes Citi’s DTAs:

In billions of dollars
Jurisdiction/component(1)
DTAs balance December 31, 2021DTAs balance December 31, 2020
U.S. federal(2)
  
Net operating losses (NOLs)(3)
$3.2 $3.0 
Foreign tax credits (FTCs)2.8 4.4 
General business credits (GBCs)4.5 3.6 
Future tax deductions and credits8.4 7.9 
Total U.S. federal$18.9 $18.9 
State and local 
New York NOLs$1.2 $1.5 
Other state NOLs0.2 0.1 
Future tax deductions1.8 1.7 
Total state and local$3.2 $3.3 
Non-U.S.  
NOLs$0.5 $0.6 
Future tax deductions2.2 2.0 
Total non-U.S.$2.7 $2.6 
Total$24.8 $24.8 
(1)All amounts are net of valuation allowances.
(2)Included in the net U.S. federal DTAs of $18.9 billion as of December 31, 2021 were deferred tax liabilities of $2.7 billion that will reverse in the relevant carry-forward period and may be used to support the DTAs.
(3)Consists of non-consolidated tax return NOL carry-forwards that are eventually expected to be utilized in Citigroup’s consolidated tax return.
Summary of tax carryforwards
The following table summarizes the amounts of tax carry-forwards and their expiration dates: 

In billions of dollars
Year of expirationDecember 31, 2021December 31, 2020
U.S. tax return general basket foreign tax credit carry-forwards(1)
  
2022$0.5 $2.3 
20230.4 0.4 
20251.5 1.4 
20271.1 1.2 
Total U.S. tax return general basket foreign tax credit carry-forwards$3.5 $5.3 
U.S. tax return branch basket foreign tax credit carry-forwards(1)
  
2021$ $0.7 
20221.0 1.0 
20280.6 0.6 
20290.2 0.2 
Total U.S. tax return branch basket foreign tax credit carry-forwards$1.8 $2.5 
U.S. tax return general business credit carry-forwards
2032$0.4 $0.3 
20330.3 0.3 
20340.2 0.2 
20350.2 0.2 
20360.2 0.2 
20370.5 0.5 
20380.5 0.5 
20390.7 0.7 
20400.7 0.7 
20410.8 — 
Total U.S. tax return general business credit carry-forwards$4.5 $3.6 
U.S. subsidiary separate federal NOL carry-forwards  
2027$0.1 $0.1 
20280.1 0.1 
20300.3 0.3 
20331.6 1.5 
20342.0 2.0 
20353.3 3.3 
20362.1 2.1 
20371.0 1.0 
Unlimited carry-forward period4.6 3.9 
Total U.S. subsidiary separate federal NOL carry-forwards(2)
$15.1 $14.3 
New York State NOL carry-forwards(2)
  
2034$6.6 $8.1 
New York City NOL carry-forwards(2)
 
2034$7.2 $8.7 
Non-U.S. NOL carry-forwards(1)
  
Various$1.1 $1.2 

(1)Before valuation allowance.
(2)Pretax.