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Without the plan, your home office deducts nowhere. With it, $9,530 comes back tax-free.
The most valuable boring document in small-business tax: a one-page accountable plan. S-corp and partnership owners who pay business expenses personally get NOTHING — unreimbursed employee expenses are permanently nondeductible (OBBBA made the TCJA suspension permanent), and the entity can't deduct what it didn't pay. With a §62(c) accountable plan, the entity reimburses you: deductible to the business, excluded from your income, no payroll tax. Home office ($5/sq ft), mileage at the 2026 split-year rates, phone, internet, supplies — a typical owner reimburses $9,000+ a year, worth about $3,000 at the 32% bracket, every year, forever.
S-corp owners use it the week they learn their home office deducted nowhere: a one-page plan turns $9,000+ of personal spending into entity deductions received tax-free — no income tax, no payroll tax, every year — and it stacks with the Augusta Rule on the same house.
Because you're an employee of your S-corp, and employees lost the unreimbursed-expense deduction in 2018 — permanently, now that OBBBA removed the 2025 sunset. The entity must pay. The fix is procedural, not structural: adopt the plan (one page), submit expense reports within 60 days with receipts, return any excess reimbursement. Meet those three §62(c) requirements and the reimbursement vanishes from your W-2 entirely — it's not wages, not distributions, not income.
Yes — accountable plan reimbursements are excluded from wages for both income tax AND FICA/FUTA. That makes them better than salary (which pays 15.3% payroll tax) and cleaner than distributions for compensating actual business spending. It's the one tax-free channel between your entity and your pocket that the IRS explicitly blesses.
Simplified ($5/sq ft, $1,500 max) wins for small offices and zero record-keeping; the actual-expense method wins when housing costs are high — but for an S-corp the office must run through the entity's reimbursement either way; you can't claim it personally. And yes, the Augusta Rule stacks: the accountable plan reimburses ongoing expenses while §280A(g) rents the home for up to 14 days of meetings — different code sections, same house, both tax-free.