1.) Basis of Presentation and Reclassifications:

The accompanying unaudited consolidated financial statements of Cortland Bancorp (the Company) and the Cortland Savings and Banking Company (the Bank) have been prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring items) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018. These interim unaudited consolidated financial statements should be read in conjunction with our annual audited financial statements as of December 31, 2017, included in our Form 10-K for the year ended December 31, 2017, filed with the United States Securities and Exchange Commission. The accompanying Consolidated Balance Sheets at December 31, 2017, have been derived from the audited Consolidated Balance Sheets but do not include all of the information and footnotes required by U.S. GAAP for complete financial statements.

Effective January 1, 2018, the Company adopted ASU 2014-09 Revenue from Contracts with Customers – Topic 606 and all subsequent ASUs that modified ASC 606. The Company has elected to apply the standard utilizing the modified retrospective approach with a cumulative effect of adoption for the impact from uncompleted contracts at the date of adoption. The implementation of the new standard had no material impact to the measurement or recognition of revenue of prior periods.

Management determined that the primary sources of revenue emanating from interest income on loans and investments along with noninterest revenue resulting from investment security gains, gains on the sale of loans, earnings on bank owned life insurance, wealth management and other non-interest income are not within the scope of ASC 606. As a result, no changes were made during the period related to these sources of revenue.

The main types of non-interest income within the scope of the standard are as follows:

Service charges on deposit accounts – The Company has contracts with its deposit customers where fees are charged if the account balance falls below predetermined levels defined as compensating balances. These agreements can be cancelled at any time by either the Company or the deposit customer. Revenue from these transactions is recognized on a monthly basis as the Company has an unconditional right to the fee consideration. The Company also has transaction fees related to specific transactions or activities resulting from a customer request or activity that include non-sufficient fund fees, overdraft fees, continuous overdraft fees and other fees such as stop payment fees. All of these fees are attributable to specific performance obligations of the Company where the revenue is recognized at a defined point in time, namely at the completion of the requested service/transaction.

Fees, exchange, and other service charges- This is primarily comprised of debit card income, ATM fees, merchant services income, and other service charges. Debit card income is primarily comprised of interchange fees earned whenever the Company’s debit and credit cards are processed through card payment networks such as Visa. ATM fees are primarily generated when a Company cardholder uses a non-Company ATM or a non-Company cardholder uses a Company ATM. Merchant services income mainly represents fees charged to merchants to process their debit card transactions, in addition to account management fees. Other service charges include cashier’s checks, check charges and other services. The Company’s performance obligation for fees, exchange, and other service charges are largely satisfied, and related revenue recognized, when the services are rendered or upon completion. Payment is typically received immediately or in the following month.

Gains (losses) on sale of other real estate owned – Gains and losses are recognized at the completion of the property sale when the buyer obtains control of the real estate and all of the performance obligations of Company have been satisfied. Evidence of the buyer obtaining control of the asset include transfer of the property title, physical possession of the asset, and the buyer obtaining control of the risks and rewards related to the asset. In situations where the Company agrees to provide financing to facilitate the sale, additional analysis is performed to ensure that the contract for sale identifies the buyer and seller, the asset to be transferred, payment terms, and that the contract has a true commercial substance and that collection of amounts due from the buyer is reasonable. In situations where financing terms are not reflective of current market terms, the transaction price is discounted impacting the gain/loss and the carrying value of the asset.

The following table depicts the disaggregation of revenue derived from contracts with customers to depict the nature, amount, timing, and uncertainty of revenue and cash flows.

	(Amounts in thousands)
	Three Months Ended		Nine Months Ended
	September 30, 2018
Revenue stream
Service charges on deposit accounts:
Overdraft fees	$	285	$	810
Service charges		107		306
Other fees		3		12
Fees, exchange, and other service charges		174		580
Non-interest income (in-scope of Topic 606)		569		1,708
Non-interest income (out-of-scope of Topic 606)		579		3,029
Total non-interest income	$	1,148	$	4,737

Certain items contained in the 2017 financial statements have been reclassified to conform to the presentation for 2018. Such reclassifications had no effect on the net results of operations or shareholders’ equity.