IRS CSED Calculator: Estimate When the 10-Year Clock Runs Out
The IRS generally has 10 years from the date a tax was assessed to collect it; after the Collection Statute Expiration Date, in the words of IRC 6502, the tax can be collected only if levy is made or a court proceeding begun within that window. But the clock pauses for bankruptcies, pending offers, hearings, and more. This estimator applies the sourced rules to your dates, and it is an educational estimate: the controlling CSED is the one in IRS records, shown on your account transcript.
What pauses the clock, with sources
| Event | Suspension | Extra time after | Source |
|---|---|---|---|
| Bankruptcy | From petition until the case is discharged, dismissed, or closed | Plus 6 months | IRC 6503(h); IRS |
| Offer in compromise pending | While the IRS reviews the offer, and during any appeal of a rejection | Plus 30 days after rejection | IRS; IRM 5.1.19.3.4 |
| Collection Due Process hearing | From receipt of your request until withdrawal or final determination, including appeals | 90-day minimum remains after determination if less was left | IRS; IRM 5.1.19.3.3 |
| Installment agreement request | While the IRS reviews the request | Plus 30 days if withdrawn, rejected, or terminated, plus any timely appeal | IRS; IRM 5.1.19.3.5 |
| Living outside the US | While continuously abroad 6 months or more | At least 6 months remain on return | IRC 6503(c) |
| Innocent spouse claim | From the claim until waiver or the Tax Court window ends | Plus 60 days | IRS; IRM 5.1.19.3.6 |
| Military service | During service | Plus 270 days after notification (combat zones: exit date plus 180 days) | IRS; IRM 5.1.19.3.8 and .9 |
The parts people get wrong
Three verified points cut against common folklore. First, ordinary payments do not restart the federal clock; the suspension events are statutory, and payments are not among them (private debts under state statutes work differently, as our state statute of limitations table shows). Second, an account can hold multiple CSEDs at once, one per assessment: an audit or penalty assessment years after filing starts its own 10-year clock, which is why the IRS says your account "can include multiple tax assessments, each with their own CSED." Third, the collection alternatives that pause the clock are a real trade: an offer in compromise or CDP hearing buys review time by adding collection time, which is worth weighing when the CSED is close. The programs themselves are decoded in our CNC, offer in compromise, and payment plan guides.
Finding the real number
The IRS's instruction is direct: "You can find a CSED in your account transcript," accessible through your IRS online account, Form 4506-T, or the transcript line at 800-908-9946. Our transcript code decoder covers reading the rest of the transcript while you are in there. For balances near the CSED, hardship status (currently not collectible) can sometimes carry a balance to expiration, a strategy with real tradeoffs a credentialed professional should evaluate on your facts.
Sources: IRC 6502 and 6503; IRS: Time the IRS can collect tax; IRM 5.1.19; Taxpayer Advocate: understanding your CSED (2026). Verified July 2026.
Educational estimate only, not tax or legal advice, and not a determination of any actual expiration date. The controlling CSED is computed by the IRS from your account records; verify with your account transcript and a credentialed tax professional before relying on any date. ClearChoiceRadar is not affiliated with the IRS or any government agency.