Many small business owners in the Bay Area pay for work expenses with their own cards and then “pay themselves back” from the business without any written process. Employees do the same with mileage, phone bills and supplies. Without the right setup, those repayments can be treated as taxable wages, and your employees usually cannot deduct the costs themselves. This accountable plan Union City guide explains how an accountable plan works in 2026, who should use one and what to fix before December 31, 2026.
It is written for owners of S corporations, C corporations and growing teams in Union City, Fremont, Newark, Hayward, San Leandro, Castro Valley and across the Bay Area, from contractors and real estate offices to medical practices, restaurants and tech start-ups. The rules come from IRS Publications 15, 15-B and 463, the California Franchise Tax Board and the California Labor Code, and we link to each source so you can read the details yourself.
What an Accountable Plan Is
An accountable plan is simply a set of rules for how your business reimburses or advances money for business expenses. If the arrangement follows the IRS requirements, the payments are not income to the employee. IRS Publication 15 (2026), Employer’s Tax Guide says amounts paid under an accountable plan “aren’t wages” and are not subject to income tax withholding, Social Security, Medicare or FUTA taxes.
The business still gets its deduction for the underlying expense, subject to the normal limits. For example, a client meal reimbursed to an employee is still subject to the 50 percent meal limit at the business level. Our holiday party and gift tax guide explains the meal and entertainment rules in more detail.
The alternative is a nonaccountable plan, such as a flat monthly “car allowance” with no mileage log or a reimbursement where nobody turns in receipts. Those payments are taxed as wages. For a small team, the difference can add up to thousands of dollars of payroll tax each year, plus income tax for the employee.
The Three IRS Rules Every Accountable Plan Must Meet
IRS Publication 15 says your reimbursement or allowance arrangement must require employees to meet all three of these rules:
- Business connection. The employee must have paid or incurred allowable expenses while performing services as your employee. The payment must be for the expenses and not an amount that would otherwise have been paid as wages.
- Substantiation. The employee must substantiate the expenses to you within a reasonable period of time.
- Return of excess. The employee must return any amounts in excess of the substantiated expenses within a reasonable period of time.
What counts as a reasonable period of time
The IRS says this depends on the facts and circumstances, but both IRS Publication 463 and Publication 15 describe timing that is generally treated as reasonable:
- An advance is given within 30 days of the time the expense is paid or incurred.
- The employee adequately accounts for the expense within 60 days after it was paid or incurred.
- Any excess is returned within 120 days after the expense was paid or incurred.
As an alternative, you can give employees a periodic statement, at least quarterly, that asks them to either return or adequately account for outstanding advances, and they comply within 120 days of the statement.
What adequate accounting looks like
Publication 463 says an employee adequately accounts by giving the employer a statement of expense, an account book, a diary or a similar record in which each expense was entered at or near the time it happened, along with documentary evidence such as receipts. The IRS also notes that you cannot deduct amounts that are approximated or estimated, and that a record prepared on a computer is considered an adequate record. In practice, an expense app or a simple monthly expense report with attached receipts works well.
What Happens Without an Accountable Plan
Publication 15 says payments under a nonaccountable plan are wages, are treated as supplemental wages and are subject to income tax withholding, Social Security, Medicare and FUTA taxes. Publication 463 adds that even under an accountable plan, excess reimbursements that are not returned and reimbursements of nondeductible expenses are treated as paid under a nonaccountable plan. An arrangement that repays business expenses by reducing the amount reported as wages is also treated as nonaccountable.
Employees cannot fill the gap on their own federal return
Before 2018, employees could deduct unreimbursed job expenses as a miscellaneous itemized deduction above 2 percent of AGI. That deduction was suspended starting in 2018, and section 70110 of the 2025 budget law, P.L. 119-21, made the suspension permanent for tax years beginning after December 31, 2025, with a narrow exception for certain educator expenses. Publication 463 also warns that if you are entitled to a reimbursement but do not claim it, you cannot deduct the expense.
The result is simple: for federal purposes, the best way for an employee, including an owner-employee, to get tax-free treatment for business costs is to be reimbursed by the business under an accountable plan.
California is different for individuals
California did not follow the federal suspension. The 2025 Instructions for Schedule CA (540) say that under federal law the miscellaneous itemized deductions subject to the 2 percent floor are suspended, and “California law does not conform.” California itemizers can still report unreimbursed employee expenses on Schedule CA, but only the amount above 2 percent of federal AGI counts. That is a much weaker benefit than a clean reimbursement, so it should be a backup, not the plan.
Why S Corporation and C Corporation Owners Should Care
IRS Publication 15 says that if a business is incorporated, corporate officers who work in the business are employees of the corporation. That means an owner who works in their own S corporation or C corporation is an employee for these rules, and the corporation can reimburse the owner’s business expenses under an accountable plan, the same way it would for any other worker.
This matters most for owners who made the S corporation election to manage self-employment tax. If you paid business costs personally all year and the corporation never reimbursed you, there may be no good place to deduct those costs on your federal return. If you are still deciding whether an S corporation makes sense for 2027, read our S corp election 2027 guide.
A few related points to keep straight:
- Sole proprietors and single-member LLCs taxed as sole proprietors generally deduct business expenses directly on Schedule C, so an accountable plan is mainly for their employees, not the owner.
- Partnerships and multi-member LLCs have different rules for partner expenses. Review your partnership agreement with a tax professional before reimbursing partners.
- 2 percent S corporation shareholders are treated like partners for many fringe benefits under IRS Publication 15-B, so do not assume every employee benefit works the same for an owner. Expense reimbursements and fringe benefits are separate questions.
Common Expenses an Accountable Plan Can Cover
Business mileage
The IRS standard mileage rates page lists the 2026 business rate as 72.5 cents per mile for January 1 through June 30, 2026, and 76 cents per mile for July 1 through December 31, 2026. Publication 15 says that when a reimbursement does not exceed the government rate, the employee is treated as having accounted for the amount, but the business miles and business purpose still have to be substantiated. A mileage log with dates, destinations, purpose and miles is the key record. Publication 15 lists accountable plan amounts above the government mileage rate as subject to income tax withholding and Social Security, Medicare and FUTA taxes, so most small businesses simply cap mileage reimbursement at the IRS rate. For vehicle purchase questions, see our car loan interest deduction guide.
Travel and per diem
For overnight business travel, you can reimburse actual costs with receipts or use a per diem allowance. Publication 15 points employers to the GSA per diem rates for meals and lodging in the continental United States. If a per diem or allowance exceeds the amounts substantiated, Publication 15 says the excess must be reported as wages.
Cell phones
Publication 15-B says an employer-provided cell phone is excluded from wages if it is provided primarily for noncompensatory business purposes, such as the need to reach the employee for work-related emergencies or to speak with clients outside normal hours. A phone given to boost morale or as extra pay is taxable. Keep a short written business reason in your policy.
Home office costs for owner-employees
The flowchart in IRS Publication 587 shows that using part of your home as an employee leads to no home office deduction on your own return. Many corporations instead reimburse an owner-employee for the business share of home office costs, such as rent or mortgage interest, utilities and insurance, based on square footage. The IRS has not issued a simple safe harbor for this kind of reimbursement, so document the business use, the square footage calculation and the receipts carefully, and review the method with your tax preparer before you start.
Supplies, software and other costs
Office supplies, software subscriptions, professional dues and small tools bought for the business can all be reimbursed when the expense has a business purpose and a receipt. Personal costs mixed in with business costs should be split out before reimbursement, because reimbursing personal items breaks the business connection rule.
California Labor Code 2802: Reimbursement Is Required
For Bay Area employers, an accountable plan is not just a tax idea. California Labor Code section 2802 says an employer “shall indemnify” an employee for all necessary expenditures or losses incurred in direct consequence of the discharge of his or her duties. The section also allows interest on reimbursement awards and lets the Labor Commissioner issue citations for amounts due.
Employees who drive to job sites, use personal phones for work or buy supplies for your business in Union City, Fremont or Hayward may be owed reimbursement under state law. A written accountable plan helps you pay those costs on time, keep the amounts out of taxable wages and keep a paper trail if a question ever comes up. Employment law questions about what is “necessary” should go to an employment attorney.
How to Set Up an Accountable Plan Before December 31, 2026
The IRS does not publish a required form for an accountable plan, but a written policy is the clearest evidence that your arrangement meets the rules. Here is a practical setup:
- Write the policy. List covered expenses, the documentation required, the 60-day deadline for expense reports and the 120-day deadline for returning excess advances. Corporations often adopt the policy by board resolution or written consent.
- Use one expense report format. Each report should show date, amount, vendor, business purpose and attached receipts, plus a mileage log for car use.
- Pay reimbursements separately from payroll. Publication 15 says that if a single payment includes both wages and an expense reimbursement, you must specify the amount of the reimbursement. Separate payments make this much easier.
- Book reimbursements to the right expense accounts. Reimbursed mileage, travel, meals and supplies should land in their own expense accounts, not in owner draws or wages. Our bookkeeping services team can set this up and reconcile it monthly.
- Clean up 2026 before year-end. Under IRS Publication 538, a cash method business generally deducts expenses in the tax year it pays them. If your corporation uses the cash method and you want 2026 owner expenses reimbursed and deducted on the 2026 return, collect the receipts and pay the reimbursement by December 31, 2026.
If your team gets reimbursements through payroll software today, our payroll services team can separate them from wages so W-2s are correct in January. For year-end payroll timing, see our Hayward year-end payroll checklist.
Accountable Plan Union City Year-End Checklist
- Confirm whether your business is a corporation, partnership or sole proprietorship, since that decides who can be reimbursed as an employee.
- Adopt a written accountable plan policy with the 30, 60 and 120 day timing rules or a quarterly statement process.
- Collect 2026 receipts and mileage logs from owners and employees, using 72.5 cents per mile through June 30 and 76 cents per mile from July 1.
- Replace flat car or phone allowances that have no substantiation, or run them through payroll as wages.
- Recover or report as wages any unreturned advances.
- Split personal costs out of mixed receipts before reimbursing.
- Document the business reason for company cell phones and the square footage method for any home office reimbursement.
- Pay 2026 reimbursements by December 31, 2026 if you use the cash method and want the 2026 deduction.
- Check that reimbursements are not included in box 1 of 2026 Forms W-2.
- Update your January 15, 2027 estimated payment with our Q4 estimated tax guide.
Accountable Plan Union City FAQs
What is an accountable plan?
An accountable plan is an employer reimbursement or allowance arrangement that meets three IRS rules: the expenses must have a business connection, the employee must substantiate them within a reasonable period of time, and the employee must return any excess within a reasonable period of time. IRS Publication 15 says amounts paid under an accountable plan are not wages and are not subject to income tax withholding, Social Security, Medicare or FUTA taxes.
How fast do employees need to turn in receipts?
IRS Publications 15 and 463 treat timing as reasonable if an advance is given within 30 days of the expense, the employee adequately accounts for the expense within 60 days after it was paid or incurred, and any excess is returned within 120 days. As an alternative, the employer can send a periodic statement at least quarterly asking employees to return or account for outstanding amounts, and the employee must comply within 120 days of the statement.
Can an S corporation owner use an accountable plan?
Yes, if the owner works in the business as an employee. IRS Publication 15 says corporate officers who work in the business are employees of the corporation, so their business expense reimbursements can follow the same accountable plan rules as any other employee. Sole proprietors and single-member LLC owners taxed as sole proprietors generally deduct business expenses directly on Schedule C instead, and partners should review their partnership agreement with a tax professional.
What happens if my reimbursement policy does not meet the rules?
The payments are treated as made under a nonaccountable plan. IRS Publication 15 says those payments are wages, treated as supplemental wages and subject to income tax withholding, Social Security, Medicare and FUTA taxes. Excess advances that are not returned and reimbursements for nondeductible expenses are also treated as paid under a nonaccountable plan.
Can my employees deduct unreimbursed work expenses in 2026?
Generally not on their federal return. The 2017 law suspended miscellaneous itemized deductions subject to the 2 percent floor, and section 70110 of P.L. 119-21 made that suspension permanent for tax years beginning after 2025, with an exception for certain educator expenses. California does not conform, so the 2025 Schedule CA (540) instructions still allow unreimbursed employee expenses above 2 percent of federal AGI for those who itemize.
Does California require employers to reimburse work expenses?
Yes. California Labor Code section 2802 requires an employer to indemnify an employee for all necessary expenditures or losses the employee incurs in direct consequence of the discharge of his or her duties. An accountable plan is a practical way to meet that state obligation while keeping the reimbursements out of taxable wages.
Set Up Your Accountable Plan With Accountico
An accountable plan takes a few hours to set up and can keep business reimbursements out of taxable wages for years. Accountico helps business owners in Union City, Fremont, Newark, Hayward, San Leandro, Castro Valley and across the Bay Area write a simple reimbursement policy, collect the right records, keep reimbursements separate from payroll and plan year-end deductions for both the IRS and California. Learn more about our tax strategy and planning, payroll and tax preparation services, or book a free 30-minute consultation to review your 2026 reimbursements before December 31, 2026.
Accountico Inc
33476 Alvarado Niles Rd, Ste A007, Union City, CA 94587
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Disclaimer: This article is general information based on IRS, Franchise Tax Board and California statutory guidance available as of October 28, 2026. It is not tax, legal or accounting advice for your specific situation. Rules and rates can change, and the right setup depends on your entity type, accounting method and full return. Talk with a qualified tax professional, and with an employment attorney for Labor Code questions, before acting on this information.
