Accountable Plan Reimbursements: How S-Corp Owners Deduct Expenses Tax-Free

By Yarik Yarosh, CPA ·September 5, 2026 ·6 min read

Written by Yarik Yarosh, CPA (US & Canada) September 5, 2026 · FL CPA license AC61704 · CPA Ontario

An accountable plan is a formal employer reimbursement arrangement that meets the requirements of IRC 62(c) and Reg. 1.62-2. When properly structured, reimbursements under an accountable plan are (1) deductible by the employer as a business expense, (2) excluded from the employee’s W-2 income, and (3) exempt from FICA, FUTA, and income tax withholding. This is particularly valuable for S-Corp owner-employees who cannot deduct unreimbursed employee business expenses on their personal returns (the TCJA eliminated the Schedule A deduction for unreimbursed employee expenses through 2025). Without an accountable plan, an S-Corp owner who pays for business expenses personally (mileage, home office, supplies, travel) gets no tax deduction for those expenses. With an accountable plan, the S-Corp reimburses the expenses and deducts them, while the owner receives the reimbursement tax-free.

✓Key takeaway

Accountable plan vs. no plan (S-Corp owner):

Factor	With Accountable Plan	Without Accountable Plan
Business expense paid by owner	Reimbursed by S-Corp	Owner absorbs the cost
Tax deduction	S-Corp deducts the reimbursement	No deduction (TCJA eliminated Schedule A employee expense deduction)
W-2 impact	NOT included in W-2	N/A (expense just lost)
FICA impact	NOT subject to FICA	N/A
Net cost to owner	$0 (fully reimbursed, tax-free)	Full cost with no tax benefit

Three requirements for an accountable plan (Reg. 1.62-2(c)):

Requirement	Details	Deadline
1. Business connection	Expense must be a deductible business expense	At time of expense
2. Adequate substantiation	Receipts, mileage logs, or per diem records submitted	Within 60 days of expense
3. Return of excess amounts	Any reimbursement exceeding substantiated expenses must be returned	Within 120 days of payment

What happens if requirements are NOT met: If the reimbursement fails ANY of the three requirements, the entire amount is treated as compensation:

Included in the employee’s W-2 (Box 1)
Subject to income tax withholding
Subject to FICA and FUTA
Employer pays employer share of FICA/FUTA

Common expenses reimbursable under an accountable plan:

Expense	Reimbursement Method
Business mileage	IRS standard mileage rate (70 cents/mile, 2025) or actual costs
Home office	Actual expenses (business % of rent/mortgage, utilities, insurance, depreciation)
Cell phone (business use portion)	Monthly bill x business use percentage
Business travel (airfare, hotel, meals)	Actual receipts
Professional development	Course fees, conference registration
Tools and equipment	Actual receipts
Business insurance	Actual premium
Internet (business use portion)	Monthly bill x business use percentage

How does an S-Corp owner set up and use an accountable plan?

Hypothetical example

Round numbers. A marketing consultant. S-Corp. Sole shareholder-employee. W-2 salary: $80,000. The owner uses a personal vehicle for business, works from a home office, and pays for a cell phone used partially for business.

Annual business expenses paid by the owner:

Expense	Annual Amount
Business mileage (12,000 miles x $0.70)	$8,400
Home office (10% of $48,000 in home expenses)	$4,800
Cell phone (70% of $1,800 annual plan)	$1,260
Professional conferences (2 per year)	$3,000
Software subscriptions	$1,500
Office supplies	$500
Total	$19,460

Without accountable plan:

Item	Result
Owner pays $19,460 in business expenses personally	Out of pocket
Schedule A deduction for unreimbursed employee expenses	$0 (TCJA eliminated through 2025)
Tax benefit	$0
Owner’s after-tax cost	$19,460

With accountable plan:

Item	Result
S-Corp reimburses $19,460	Tax-free to owner
S-Corp deducts $19,460 as business expense	Reduces S-Corp income
Owner’s W-2	Unchanged ($80,000, reimbursements excluded)
FICA on reimbursement	$0
Owner’s after-tax cost	$0

S-Corp tax savings:

Item	Amount
S-Corp deduction	$19,460
Reduced K-1 pass-through income	$19,460 less
Tax savings to owner (24% bracket)	$4,670
FICA savings (vs. equivalent salary increase)	$19,460 x 7.65% x 2 = $2,977
Total annual tax savings	$7,647

Over 10 years: $76,470 in tax savings from a simple accountable plan.

Setting up the plan:

Step	Action	Time Required
1	Draft a written accountable plan document (board resolution)	1 hour (template available)
2	S-Corp board adopts the plan (sole shareholder can do this as board meeting of one)	15 minutes
3	Owner submits expense reports with receipts monthly or quarterly	30 minutes/month
4	S-Corp issues reimbursement checks	15 minutes/month
5	S-Corp records reimbursements as business expenses (not wages) in accounting software	15 minutes/month

The written plan should include:

Statement that the plan meets IRC 62(c) requirements
Types of expenses eligible for reimbursement
Substantiation requirements (receipts for expenses $75+, mileage log for vehicle)
60-day substantiation deadline
120-day excess return deadline
Statement that non-substantiated amounts will be treated as wages

The mileage reimbursement calculation:

Month	Business Miles	Rate	Reimbursement
January	800	$0.70	$560
February	1,200	$0.70	$840
March	1,000	$0.70	$700
…	…	…	…
Annual total	12,000		$8,400

The owner submits a mileage log showing date, destination, business purpose, and miles for each trip. The S-Corp reimburses at the IRS standard rate. No receipts needed for mileage (the rate includes gas, insurance, depreciation, maintenance).

The home office reimbursement:

Home Expense	Annual Amount	10% Business Portion
Mortgage interest	$18,000	$1,800
Property tax	$8,000	$800
Utilities	$6,000	$600
Insurance	$2,400	$240
Repairs	$3,000	$300
Depreciation	$10,600	$1,060
Total	$48,000	$4,800

The owner submits a home office calculation annually with supporting documents (mortgage statement, utility bills, insurance declaration, floor plan measurement). The S-Corp reimburses $4,800.

Important: the simplified home office method ($5/sq ft) is NOT available for accountable plan reimbursements. The owner must use actual expenses.

Illustrative numbers only, not a real client and not advice for your facts.

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Cite this page

Yarik Yarosh, CPA. "Accountable Plan Reimbursements: How S-Corp Owners Deduct Expenses Tax-Free." Blue Cloud CPA, September 5, 2026. https://bluecloudcpa.com/guides/small-business-accountable-plan-reimbursement-no-tax

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.