PLBC Plumas Bancorp Inc

NOTES TO FINANCIAL STATEMENT S

December 31, 2016 and 201 5

NOTE 1 - DESCRIPTION OF PLAN

The following description of the Plumas Bank (the "Bank") 401(k) Profit Sharing Plan (the "Plan") provides only general information. Participants should refer to the Summary Plan Description or the Plan Document for a more complete description of the Plan's provisions.

General

Plumas Bank, the Plan Sponsor, established the Plan effective on April 1, 1988, to provide all Bank employees, not otherwise excluded, who have completed 90 days of service and are eighteen years of age with the opportunity to defer a portion of their eligible compensation on a pre-tax basis. All investments in the Plan are participant directed. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA).

Participant Contributions

Each year, participants may make salary deferral contributions in any percentage of their pretax annual compensation, as defined in the Plan, subject to certain Internal Revenue Code (IRC) limitations. All participant contributions and earnings thereon are 100% vested. Participants are automatically enrolled on the first day of the month following the date the participant meets eligibility requirements.

Employer Contributions

During 2016 and 2015, the Bank’s contribution consisted of a matching amount of 25% of the employee’s contribution up to a total of 2% of the employee’s compensation totaling $114,063 and $111,383, respectively. At the discretion of the Bank, the Bank may also make a non-elective contribution to the Plan. During 2016 and 2015 the Bank did not make any discretionary contributions. Bank contributions are subject to certain IRC limitations. Both the matching contribution and any non-elective contribution vest over a five-year period as follows:

Participant Accounts

Each participant's account is credited with the participant's contributions and an allocation of the Bank's matching and discretionary contributions and Plan earnings and is charged with withdrawals and an allocation of Plan losses and investment management fees. Allocations are based on participant earnings or account balances as defined. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account. Each participant directs the investment of his or her account to any of the investment options available under the Plan.

PLUMAS BANK 401(k) PROFIT SHARING PLA N

NOTES TO FINANCIAL STATEMENT S

December 31, 2016 and 201 5

NOTE 1 - DESCRIPTION OF PLAN (Continued)

Notes Receivable from Participants

Participants may borrow from their fund accounts a minimum of $1,000 up to a maximum equal to the lesser of $50,000 or 50 percent of their vested account balance. The loans are secured by the balance in the participant's account and bear interest at prevailing market rates at the time of borrowing. Principal and interest are paid through payroll deductions.

Payment of Benefits

On termination of employment or other reasons specified by the Plan, a participant may elect to receive a lump sum payment, a part lump sum payment and part installment payments, or installment payments (annually, quarterly or monthly) over a specified period of time, not exceeding the participant's life expectancy or the joint life expectancy of the participant or participant's beneficiary. As of December 31, 201 6 and 2015, there were no benefits payable to participants that have elected to withdraw from the Plan but have not yet been paid.

Forfeitures

Forfeitures from the nonvested portion of terminated employees' account balances can be used to reduce employer contributions in the following plan year or can be used to pay administrative expenses. No forfeitures were used to offset plan expenses during the years ended December 31, 2016 and 2015, respectively.

Administrative Costs

During 2016 and 2015 all administrative costs were paid by the Participants.

Plan Termination

Although it has not expressed any intent to do so, the Bank has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event that the Plan is terminated, participants will become fully vested in their accounts.

NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Accounting

The financial statements of the Plan are prepared on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America.

Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Plan's management to make estimates and assumptions that affect certain reported amounts and disclosures and actual results could differ from these estimates.

PLUMAS BANK 401(k) PROFIT SHARING PLA N

NOTES TO FINANCIAL STATEMENT S

December 31, 2016 and 201 5

NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Investment Valuation and Income Recognition

Investments held by the Plan are stated at fair value with the exception of fully benefit-responsive investment contracts. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). Contract value reflects the amount participants would receive if they were to initiate permitted transactions under the terms of the Plan and is the relevant measure for the portion of assets attributable to fully benefit-responsive investment contracts.

Purchases and sales of securities are recorded on a trade date-basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Net appreciation (depreciation) includes the Plan's gains and losses on investments bought and sold as well as held during the year.

Notes Receivable from Participants

Notes receivable from participants are reported at their unpaid principal balance plus any accrued but unpaid interest with no allowance for credit losses, as repayments of principal and interest are received through payroll deductions and the notes are collateralized by the participants' account balances. Delinquent participant loans are recorded as benefits paid to participants based upon the terms of the plan document.

Risks and Uncertainties

The Plan utilizes various investments. Investments are exposed to various risks, such as interest rate, market, liquidity and credit risk. Due to the level of risk associated with certain investments and the sensitivity of certain fair value estimates to changes in valuation assumptions, it is at least reasonably possible that changes in the fair values of investments will occur in the near term and that such changes could materially affect participants' account balances and the amounts reported in the Statements of Net Assets Available for Benefits.

Payment of Benefits

Benefits are recorded when paid.

New Accounting Standards

In May  2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update ASU 2015-07, Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent), which removes the requirement to present investments for which the practical expedient is used to measure fair value at net asset value (NAV) within the fair value hierarchy table. Instead, an entity would be required to include those investments as a reconciling item so that the total fair value amount of investments in the disclosure is consistent with the fair value investment balance on the statement of net assets available for benefits. The Plan elected to early adopt ASU 2015-07 as of December 31, 2015, as permitted and has applied ASU 2015-07 retrospectively, as required. The adoption has been reflected in Note 4 – Fair Value Measurements of the financial statements. The adoption had no impact on the statements of net assets available for benefits or the statement of changes in net assets available for benefits as December 31, 2016 and 2015.

PLUMAS BANK 401(k) PROFIT SHARING PLA N

NOTES TO FINANCIAL STATEMENT S

December 31, 2016 and 201 5

NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

In July  2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update ASU 2015-12, Plan Accounting: Defined Benefit Pension Plans (Topic 960), Defined Contribution Pension Plans (Topic 962), Health and Welfare Benefit Plans (Topic 965): (Part I) Fully Benefit-Responsive Investment Contract, (Part II) Plan Investment Disclosures, (Part III) Measurement Date Practical  Expedient, which simplifies the required disclosures related to employee benefit plans. Part I eliminates the requirement to measure and disclose the fair value of fully benefit-responsive contracts, including common collective trust assets. Contract value is the only required measure for fully benefit-responsive investment contracts. Part II eliminates the requirement to disclose individual investments which comprise 5% or more of total net assets available for benefits, as well as the net appreciation or depreciation of fair values by type. Part II also requires plans to continue to disaggregate investments that are measured using fair value by general type; however, plans are no longer required to also disaggregate investments by nature, characteristics and risks. Furthermore, the disclosure of information about fair value measurements shall be provided by general type of plan asset. Part III allows plans to measure investments using values from the end of the calendar month closest to the plan’s fiscal year end. The Plan elected to early adopt ASU 2015-12 Parts I and II as of October 25, 2015 and has applied the provisions retrospectively. The Plan is not adopting the provisions of ASU 2015-12 Part III.

NOTE 3 - INVESTMENT IN CONTRACT WITH INSURANCE COMPANY

At December 31, 201 6 and 2015, the Plan has an investment in a fully benefit-responsive Group Annuity contract with Principal Life Insurance Company (Principal; Issuer) which is reported at contract value in the statements of net assets available for benefits. Under the terms of the contract, the contributions are maintained in a general account. The account is credited with earnings on the underlying investments and charged for participant withdrawals and administrative expenses. Contract value represents contributions made under the contract, plus earnings, less participant withdrawals and administrative expenses. Participants may ordinarily direct the withdrawal or transfer of all or a portion of their investment at contract value. The guaranteed investment contract issuer is contractually obligated to repay the principal and a specified interest rate that is guaranteed to the Plan. There are no reserves against contract value for credit risk of the contract issuer or otherwise.

Certain events limit the ability of the Plan to transact at contract value with the issuer. Such events include the following: (1) amendments to the Plan documents (including complete or partial plan termination or merger with another plan), (2) changes to the Plan's prohibition on competing investment options or deletion of equity wash provisions, (3)  bankruptcy of the Plan Sponsor or other Plan Sponsor events (for example, divestitures or spin-offs of a subsidiary) that cause a significant withdrawal from the Plan, or (4) the failure of the trust to qualify for exemption from federal income taxes or any required prohibited transaction exemption under Employee Retirement Income Security Act of 1974. In the event that the Plan Sponsor terminates the contract and requests an immediate payout, the contract payout would be subject to a 5% termination fee. The plan administrator does not believe that the occurrence of any other such contract value events, which would limit the Plan's ability to transact at contract value with participants, is probable. The guaranteed investment contract does not permit the insurance company to terminate the agreement prior to the scheduled maturity date.

The crediting interest rate of the contract is based on a formula agreed upon with the issuer, as defined in the contract agreement, but cannot be less than zero. Such interest rates are reviewed and reset on semi-annual basis. The key factors that influence future interest crediting rates could include the following: the level of market interest rates; the amount and timing of participant contributions, transfers and withdrawals into/out of the contracts; and the duration of the underlying investments backing the contract.

PLUMAS BANK 401(k) PROFIT SHARING PLA N

NOTES TO FINANCIAL STATEMENT S

December 31, 2016 and 201 5

NOTE 4 - FAIR VALUE MEASUREMENTS

Fair Value Hierarchy

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). The effect of a change in valuation technique or its application on a fair value estimate is accounted for prospectively as a change in accounting estimate. When evaluating indications of fair value resulting from the use of multiple valuation techniques, the Plan is to select the point within the resulting range of reasonable estimates of fair value that is most representative of fair value under current market conditions. Fair value measurements are determined by maximizing the use of observable inputs and minimizing the use of unobservable inputs. The hierarchy places the highest priority on unadjusted quoted market prices in active markets for identical assets or liabilities (level 1 measurements) and gives the lowest priority to unobservable inputs (level 3 measurements). The three levels of inputs within the fair value hierarchy are defined as follows:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the Plan has the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corrobor ated by observable market data.

Level 3: Significant unobservable inputs that reflect the Plan's own assumptions about the assumptions that market participants would use in pricing an asset or liability.

In some cases, a valuation technique used to measure fair value may include inputs from multiple levels of the fair value hierarchy. The lowest level of significant input determines the placement of the entire fair value measurement in the hierarchy. Transfers between hierarchy measurement levels are recognized by the Plan as of the actual date the event or change in circumstances that caused the transfer.

The following descriptions of the valuation methods and assumptions used by the Plan to estimate the fair values of investments apply to investments held directly by the Plan.

Company Common Stock : The fair value of Plumas Bancorp common stock is determined by obtaining quoted prices from a nationally recognized exchange (level 1 inputs).

Mutual Funds : The fair values of mutual fund investments are valued at the NAV of shares held by the Plan and are valued at the closing price reported on the active market on which the individual securities are traded.

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

PLUMAS BANK 401(k) PROFIT SHARING PLA N

NOTES TO FINANCIAL STATEMENT S

December 31, 2016 and 201 5

NOTE 5 - CONCENTRATION OF INVESTMENTS

At December 31, 201 6 and 2015, the Plan held investments in Plumas Bancorp common stock, representing approximately 20% and 11% of net assets available for benefits, respectively.

PLUMAS BANK 401(k) PROFIT SHARING PLA N

NOTES TO FINANCIAL STATEMENT S

December 31, 2016 and 201 5

Certain Plan investments are managed by Principal. Principal is the trustee as defined by the Plan and, therefore, these transactions qualify as party-in-interest transactions. Fees paid by the Plan for the investment management services amounted to $10,762 and $12,316 for the years ended December 31, 2016 and 2015, respectively and were included as a reduction of the return earned on each fund. Notes receivable from participants also reflect party-in-interest transactions.

NOTE 7 - FEDERAL INCOME TAX STATUS

The Plan obtained a favorable determination letter, dated May 8, 2015, in which the Internal Revenue Service (IRS) stated the Plan complied with applicable requirements of the Internal Revenue Code (IRC). Previous to this the Plan was operating under an opinion letter dated March 31, 2008 indicating that the prototype adopted by the Plan, as then designed, was in compliance with applicable requirements of the Internal Revenue Code.

Accounting principles generally accepted in the United States of America require plan management to evaluate tax positions taken by the Plan. Management evaluated the Plan's tax positions and concluded that the Plan had maintained its tax exempt status and had taken no uncertain tax positions that require recognition or disclosure in the financial statements. Therefore, no provision or liability for income taxes has been included in the financial statements. With few exceptions, the Plan is no longer subject to income tax examinations by the U.S. federal, state, or local tax authorities for years before 201 3.

SUPPLEMENTAL SCHEDULE