MCA Bad Debt: Reserves, Write-Offs, and the Deduction Funders Miss
By the I&S Accounting teamReviewed by a licensed U.S. CPA
The Short Answer
A defaulted advance hurts a funder twice when the books handle it wrong: once in cash, and again at tax time when the deduction is missed, overstated, or unsupported. The rules of thumb: the reserve is a book estimate, the write-off is the real event, the deductible loss is the unrecovered capital — not the gross RTR — and the whole thing stands or falls on documentation. (For how to measure defaults portfolio-wide, start with MCA default calculations; this post is about what happens on the books and the return.)
Two Layers That Get Confused
Book accounting wants the portfolio stated honestly every month: a bad-debt reserve (allowance) estimated from history, topped up monthly, so one blown deal doesn't whipsaw the P&L. Tax generally doesn't care about your estimate — the deduction follows specific deals actually charged off as worthless. Funders who only reserve never take the deduction; funders who only write off report a lumpier P&L than their portfolio deserves. You want both, doing their separate jobs.
The Write-Off, Done Right
Take the running deal: $50,000 funded against $70,000 of RTR, and it dies with $35,000 collected, $35,000 never coming. The write-off entry (the exact debits and credits are in the journal-entries reference) must do three things:
- Relieve the allowance you've been building
- Remove the $35,000 of remaining RTR from the receivable
- Clear the deal's remaining unearned margin
That third step is the one that separates clean funder books from messy ones. Under the deferral method you'd recognized $10,000 of margin by the halfway point; the other $10,000 was never income — clearing it means the P&L loss equals the $15,000 of capital you actually failed to recover ($50,000 deployed, $35,000 collected), not an inflated number. Under an accelerated method, income you already reported has to come back out — same economics, uglier optics (how the methods diverge).
What the Deduction Is — and Isn't
- It is the unrecovered capital on a worthless receivable — a business bad debt.
- It isn't the gross RTR. The margin portion was never income (deferral) or gets unwound through the write-off (accelerated) — either way it doesn't get deducted as a loss on top.
- It isn't the monthly reserve. Book estimates generally don't deduct; charged-off deals do.
- It isn't automatic in the year the merchant first bounces. Worthlessness has a date, and you should be able to defend it.
Settled deals follow the same logic: accept $8,000 on the $35,000 balance and the charge-off is the $27,000 remainder — with the settlement agreement in the file. And if cash shows up after the write-off, it's a recovery — book it as income when received; don't resurrect the dead receivable.
The Worthlessness File
When the deduction is questioned — by the IRS, an auditor, or a buyer's diligence team — the question is always "show me." The file you want, per deal:
- Last payment date and the collections timeline after it
- Contact log, default notice, and any workout or settlement attempts
- Evidence of the merchant's state: closed location, bankruptcy filing, dissolved entity
- UCC position and what (if anything) it produced
- The date and basis of your worthlessness conclusion
Five lines in a deal record while it's happening; a forensic project two years later.
Portfolio Hygiene
The cadence that keeps all of this honest is monthly: update the reserve from current portfolio history, sweep for deals that crossed your written write-off criteria (e.g., no payments in N days + collection exhausted), and book the write-offs with their unearned margin cleared — it's one of the five reconciliations in a funder's month-end close. The reserve methodology and the write-off policy should both be one written paragraph; "whenever it feels dead" is not a policy diligence respects.
The Bottom Line
Bad debt is where sloppy MCA books get expensive twice — a misstated P&L all year, then a deduction that's missed or indefensible in March. The fix is mechanical: reserve monthly, write off specifically, clear the margin, document worthlessness, and keep tax treatment coordinated with your preparer. That's exactly the discipline we run, deal by deal, in every set of funder books we keep — happy to show you what it looks like on yours.
Frequently asked questions
Generally yes, as a business bad debt — but only the unrecovered capital, once the receivable is genuinely worthless and you can document it. Margin you never collected and never recognized as income was never taxed, so it can't also be deducted. The specifics depend on your revenue recognition method and the facts of the deal — settle the treatment with your tax preparer.
A reserve (allowance) is a monthly book estimate against the whole portfolio — it smooths the P&L but is generally not deductible by itself. A write-off removes one specific dead deal from the books, and the tax deduction generally follows specific charge-offs, not book reserves. Clean funder books carry both: a reserve for the portfolio, write-offs deal by deal.
It's a facts-and-circumstances call, which is why documentation decides: payments stopped and stayed stopped, the merchant closed or filed bankruptcy, collection or settlement efforts ran out, a judgment proved uncollectible. Record the indicators and the date you concluded the deal was done — that file supports the deduction and survives diligence.
Three things at once: relieve the allowance, remove the deal's remaining receivable (the RTR you'll never collect), and clear the deal's remaining unearned margin. Clearing the unearned margin is the step funders miss — skipping it overstates the loss on the P&L and quietly leaves income misstated.