Accountable Plans Under § 62(c)

Under § 62(c) and Reg. § 1.62-2, reimbursements of employee business expenses paid under a reimbursement or other expense allowance arrangement are excluded from the employee’s gross income if the arrangement meets three requirements: business connection, substantiation, and return of excess. Reimbursements paid under a plan that fails any requirement are wages subject to FICA, FUTA, and income tax withholding.

The three requirements — § 1.62-2

1. Business connection — § 1.62-2(d). The arrangement provides advances, allowances, or reimbursements only for business expenses that are deductible under § 162, § 167, or other applicable provisions, and that are paid or incurred by the employee in connection with the performance of services as an employee.
2. Substantiation — § 1.62-2(e). Each business expense must be substantiated to the payor with information sufficient to identify the specific nature of each expense and to conclude that the expense is attributable to the payor’s business activities. For § 274(d) expenses (travel, meals, transportation), strict substantiation including amount, time, place, and business purpose is required.
3. Return of excess — § 1.62-2(f). Amounts in excess of substantiated expenses must be returned to the payor. Failure to return excess advances renders only the unreturned amount non-accountable; the rest remains accountable if otherwise compliant.

The 60/120 day safe harbor — § 1.62-2(g)

An expense is treated as substantiated within a reasonable period if substantiation occurs within 60 days of when the expense was paid or incurred. An advance is treated as paid under a reasonable period if it is made within 30 days of when the expense is paid or incurred; substantiation within 60 days; and excess returned within 120 days.

Alternative: the periodic statement method — if the employer provides a periodic statement (at least quarterly) requesting substantiation and return of excess, the requirements are met if the employee complies within 120 days of the statement.

Home office reimbursement

The S corp may reimburse a shareholder-employee for the business-use portion of qualifying home expenses under an accountable plan, provided the home office meets the regular and exclusive use test of § 280A(c)(1) (principal place of business or place for meeting clients).

Allocable expenses include mortgage interest, real estate taxes, depreciation on the dwelling, utilities, insurance, repairs, and home maintenance, prorated by business-use percentage (typically square footage). The shareholder-employee should not also claim the home office on Schedule A or elsewhere on Form 1040; the reimbursement converts the personal deduction context into a corporate deduction.

Watch the depreciation recapture exposure on sale of the residence. § 121 exclusion does not shield depreciation taken on the home post-1997; the depreciation portion is unrecaptured § 1250 gain at 25%. For clients on track to sell the home soon, the recapture vs current reimbursement NPV should be modeled.

Vehicle reimbursement

The standard mileage rate option (70 cents per business mile for 2025; check current Rev. Proc.) is generally simpler than actual expenses. The shareholder-employee owns the vehicle personally, drives business miles, logs them under § 274(d) standards, and submits monthly reports. The corp reimburses at the standard rate.

Actual expense method is preferable when actual cost exceeds the standard rate (high-fuel vehicles, certain SUVs, expensive maintenance) but introduces depreciation/lease tracking complexity. For client SOPs, default to standard mileage unless modeling shows otherwise.

The § 280F luxury auto limits do not apply to an accountable plan reimbursement because the asset is owned by the employee, not the corporation. This is one common reason to keep the vehicle out of the S corp.

Common practitioner errors

1. Round-number monthly reimbursements. A flat $1,000/month “for expenses” without per-expense substantiation is a non-accountable plan; wages.
2. No written plan. An accountable plan should be adopted in writing (board resolution) at or before the start of the period in which reimbursements are made.
3. Late substantiation. Substantiation outside the 60-day window converts that expense to wages.
4. W-2 inclusion of compliant reimbursements. Compliant reimbursements are NOT reported on Form W-2 in any box; reporting them as wages is a common payroll-software default that overrides the planning.
5. Rent-the-home-office approach. Paying rent to the shareholder triggers self-rental recharacterization under § 1.469-2(f)(6) and may trigger § 280A(c)(6) disallowance of related expense deductions on the employee’s side. Use accountable plan reimbursement instead.

Documentation

A defensible file: written accountable plan adopted by board resolution; monthly expense reports signed by the employee; supporting receipts/logs (mileage log per § 274(d); home office square footage and prorated bills); corporate checks/transfers booked to reimbursement expense; payroll records confirming no W-2 inclusion of the reimbursed amounts.