IRS notice, decoded
CP49: Refund Applied to Other Taxes You Owe
What it is
An explanation of where your refund went: the IRS took some or all of this year's refund and applied it to a tax balance you owe from another year. The notice shows the year the money was applied to and any remainder being sent to you.
Why you got it
Sent automatically whenever a refund is offset against an existing federal tax debt on your account.
The deadline structure
No deadline to act if the offset is correct. If you don't recognize the underlying debt, or believe it was already paid, call the number on the notice — and if the debt belongs to a current or former spouse, ask about Injured Spouse relief (Form 8379), which can recover your share of a joint refund.
No printed response deadline on this notice type — but Injured Spouse claims and disputes are time-sensitive in practice; act promptly.
How to respond
- If the offset looks right: no response needed
- If you don't recognize the debt: call the number printed on the notice
- If the debt is your spouse's: Form 8379 (Injured Spouse Allocation) may recover your portion
What ignoring it leads to
Nothing further happens from this notice itself — it documents an action already taken. The risk of ignoring it is missing that the underlying debt is wrong, or that more refunds will be taken the same way next year.
First: make sure this notice is really from the IRS
- The IRS initiates contact by U.S. mail — it does not call, text, or email you first
- The IRS will NEVER ask for payment by gift card, wire transfer, cryptocurrency, or payment app — anyone who does is a scammer, full stop
- The IRS will not threaten arrest, deportation, or license revocation over the phone
- To check a letter's legitimacy independently, call the IRS at 800-829-1040 (the main line, not a number from any email or text) or look the notice code up at irs.gov
Mistakes people make with a CP49
- Treating it as a new bill — it isn't; it explains where an expected refund went
- Not investigating an unrecognized debt — an offset to a year you don't recognize can be the first visible sign of identity theft or a processing error
- Confusing this with the Treasury Offset Program (TOP) — CP49 is an IRS offset against another federal TAX debt on your own account. TOP (run by the Bureau of the Fiscal Service) offsets refunds for other debts like child support, defaulted student loans, or past-due state income tax, and is described in separate BFS notices, not this one
Official sources
- Understanding your CP49 notice
- About Form 8379, Injured Spouse Allocation
- 26 U.S.C. §6402(a) — authority to credit an overpayment against any internal-revenue-tax liability and refund the balance
Our summary paraphrases these sources. Last verified: AI-RESEARCH 2026-06-27 (Codex/gpt-5.5 live irs.gov) + cross-ref 2026-07-03 (2nd frontier model, Opus 4.8; both URLs re-fetched live) — confirmed CP49 = IRS internal offset applying a refund to a tax debt, no printed response deadline, and Form 8379 injured-spouse path; CP49-vs-TOP distinction accurate and uncontradicted. 2nd-review reconciliation 2026-07-03: broadened the TOP examples (state income tax is a tax, not a 'non-tax' debt) and added the §6402(a) statutory-authority source (Cornell text re-fetched live). Human re-verify before launch; scamCheck added 2026-07-11 (verified 5071c/4883c anti-impersonation language reused). Your printed notice always controls.
NoticeKey is not affiliated with, or endorsed by, the IRS or any state tax agency.
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