Accountable Plan Reimbursements (Section 62(c))

How it works

An accountable plan is a written arrangement between a business and its employee for reimbursing business expenses the employee paid personally. IRC section 62(c) and the regulation under it, Treasury Regulation 1.62-2, define what that arrangement has to look like. Get it right and the reimbursement is excluded from the employee's wages, so it carries no income tax withholding, Social Security, Medicare, or federal unemployment tax, and it is still deductible by the business as an ordinary and necessary expense under section 162.

That is a double benefit, not a swap. The same dollars leave the business as a deduction and arrive with the employee free of tax on the receipt. In a business with no employees other than its owner, that owner holds both ends of the transaction: the employee submitting an expense report and the person approving the reimbursement. The payment still has to be real, meaning the business actually cuts it separately from payroll, but nothing about the arrangement requires the business to be large or to have anyone else on staff.

The reason this has become close to mandatory for S corporation owner-employees paying costs like a home office, a vehicle, or a phone bill is a change that has nothing to do with accountable plans directly. Unreimbursed employee business expenses used to be deductible, above a 2 percent of adjusted gross income floor, as a miscellaneous itemized deduction. Section 67(h) suspends every miscellaneous itemized deduction for tax years beginning after 2017, and a sunset that would have ended that suspension after 2025 was removed by the One Big Beautiful Bill Act, so the suspension is now permanent. An owner-employee who pays a business cost personally and is never reimbursed gets nothing for it on the personal return. For a W-2 employee of their own corporation, the accountable plan is not one option among several for recovering that cost; it is the only one left.

What this changes in Florida

Not much on the personal side, and it is worth saying plainly rather than letting the pitch run ahead of the facts. Florida has no individual income tax, so excluding the reimbursement from an owner's income does not save a Florida owner anything a resident of a no-tax state was not already keeping. The benefit here is federal: the business's deduction against federal income tax, and the fact that a reimbursement is not a wage for federal payroll tax purposes. There is one Florida-specific detail worth knowing. Because the reimbursement is not treated as a wage, it also does not add to the wage base used for Florida reemployment tax. Real, just smaller than the federal side.

Who this applies to

This requires two distinct roles, a payor and a payee, and most of the filtering in this strategy comes from whether a business actually has both.

• S corporation owner-employees are the prime case. The shareholder has to already be an employee of the corporation, on payroll and taking reasonable compensation for the work performed, because the plan reimburses the employee, not the shareholder acting in a capital sense.
• Any employer with an employee works, not only an S corporation. The arrangement does not require any entity election. A C corporation, or any business with at least one bona fide employee, can adopt one.
• A sole proprietor or a single-member LLC treated as disregarded generally cannot use this for themselves. There is no employer and employee relationship; the owner and the business are the same taxpayer, so a payment from one to the other is not a reimbursement at all. That owner deducts the cost directly instead, the way the home office deduction works on a Schedule C, and a business in this position can still adopt a plan to reimburse anyone else it actually employs.
• Partners in a partnership generally cannot be reimbursed as employees either, for the same reason. A partnership uses its own mechanism for unreimbursed partner expenses, which is a separate question from this one.

No income level gates any of this. The only real gate is that the item being reimbursed has to be a deductible business expense, paid or incurred by the employee in the course of performing services as an employee. A personal cost does not become reimbursable by being run through the plan.

What it requires

Three requirements have to be satisfied for the arrangement to be accountable at all, and they are all-or-nothing. Miss one of them and every payment made under the arrangement, not just the defective portion, is treated as if it had been paid under a plan with no accountability whatsoever.

• Business connection. The arrangement can only reimburse expenses that are deductible and were paid or incurred by the employee while performing services as an employee. A personal expense run through the plan is out of bounds from the start.
• Substantiation within a reasonable period. The employee has to account to the business with enough detail to establish that each expense is what it is claimed to be. Travel, meals, lodging, and listed property such as vehicles carry a heightened standard under section 274(d): amount, time, place, and business purpose, documented rather than reconstructed later.
• Return of any excess within a reasonable period. If an advance or allowance turns out to be more than what the employee substantiated, the employee has to return the difference.

"Reasonable period" is not left to argument. The regulation sets a fixed-date safe harbor: all three periods run from the same event, the date the expense is paid or incurred. An advance no more than 30 days before it, substantiation within 60 days after it, and return of any excess within 120 days after it. The 120 days is not stacked on the 60. It also allows a periodic-statement alternative, where the business gives the employee a statement at least quarterly of any amount paid over what has been substantiated, with the same 120 days to substantiate or return it. Either one turns "reasonable" into a fixed, provable window instead of a fact pattern to be argued after the year is over.

What you need to document

The substantiation requirement above is not a formality. It is the entire difference between a reimbursement that survives an examination and one that gets recharacterized as wages, and the file has to be built as the expense happens rather than assembled afterward.

Home office

A worksheet showing the business-use percentage of the home, office square footage divided by total square footage, applied to the underlying bills: mortgage interest, property tax, utilities, insurance, repairs, and depreciation. There is no Form 8829 for an S corporation owner; this worksheet plus the bills is what stands in its place. Keep the mortgage principal out of the calculation, since it is not a deductible cost to begin with.

Vehicle

A contemporaneous log, date, miles driven, and business purpose for each trip, if reimbursing by the standard mileage rate. If reimbursing actual cost instead, the same underlying receipts and a business-use percentage. The business vehicle strategy goes into how the two methods compare.

Cell phone and internet

The monthly bill and a documented business-use percentage applied to it, arrived at the same way as any other mixed-use allocation: a reasonable, explainable share of actual use, not a flat guess. The cell phone and technology strategy covers how that allocation gets made.

Travel

Either the actual substantiated cost of the trip or a per diem rate for meals and incidentals, with the same amount, time, place, and purpose detail section 274(d) requires everywhere else. An owner holding more than a 10 percent stake generally cannot use the lodging per diem and has to substantiate actual lodging cost instead. The business travel strategy goes further into what counts as substantiated.

The record behind all of it

A signed, dated policy adopting the plan, kept with the corporate records. Reimbursement payments made separately from payroll, never folded into a paycheck. A general ledger account for reimbursements that is distinct from wages, so nothing here is ever coded as if it were salary.

Where it goes wrong

The mechanism itself is not aggressive; it is the IRS's own description of how a reimbursement arrangement is supposed to work. What causes trouble is the execution, and the all-or-nothing structure means a small gap in the file carries an outsized consequence. An examiner who finds the arrangement fails on any one of the three requirements can treat the entire reimbursement as if there had been no accountability at all, which turns it into W-2 wages, subject to withholding, Social Security, Medicare, and federal unemployment tax, assessed after the fact along with whatever penalties apply.

The recurring failures

They are not exotic.

• No contemporaneous record. A mileage log rebuilt at tax time, or expense reports assembled from memory, does not meet section 274(d)'s standard for the categories it covers.
• A flat monthly allowance with nothing behind it. Paying the same amount every month regardless of actual expenses, with no substantiation and no mechanism to return an excess, fails to be accountable as to that excess by definition.
• Reimbursements coded into payroll or to a wage account. The general ledger has to reflect what actually happened. Burying the payment inside payroll defeats the exclusion on its face, whatever the underlying paperwork says.
• Missing the timing. Falling outside the 60-day substantiation and 120-day return windows without a good reason for the delay puts "reasonable period" back into an argument rather than a fact.
• Reimbursing something that was never deductible. Commuting mileage, mortgage principal, and the personal share of a phone bill all fail the business-connection requirement no matter how well they are documented.
• A sole proprietor trying to reimburse themselves. There is no employee in that relationship, so there is no plan to be accountable or not; the deduction belongs on Schedule C instead.

A situation where this comes up

The pattern I see most is an S corporation owner who has been paying for a home office, a phone, and business mileage out of pocket for years, with no reimbursement arrangement in place at all. Before the miscellaneous-deduction suspension became permanent, that owner might have claimed some of it personally and lived with the limits that came with it. Now that path is closed, and the owner is simply absorbing a real business cost with no deduction anywhere. Nothing about how the business operates has to change to fix this. The expenses are already being incurred; what is missing is the paperwork that lets the business reimburse them.

Building that paperwork is the actual work: a short written policy, a mileage log started going forward rather than reconstructed for the year already past, a home-office worksheet tied to the actual utility and insurance bills, and a habit of submitting an expense report on a schedule instead of settling up once a year. None of it is complicated, but all of it has to exist before the reimbursement is paid, not after.

The version that worries me looks similar but is not: a fixed monthly deposit labeled a reimbursement, with no expense report behind it and no relationship to what the owner actually spent. That is a disguised salary payment, not an accountable plan, and it is the fact pattern that turns the entire arrangement into wages the moment anyone looks closely.