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Understanding the Collection Statute Expiration Date.
Every IRS tax debt has a CSED — a date after which the IRS generally can no longer legally collect it. Here's what determines that date and what can change it.
Definition
What a CSED is
The Collection Statute Expiration Date is the date after which the IRS generally can no longer legally collect a specific tax debt. It is not a single account-wide date — each tax year's balance has its own CSED, calculated from when that balance was assessed.
Method
How it is calculated
A CSED is typically 10 years from the date a tax was assessed — not from when the return was originally due, and not from when a notice was received. The assessment date is recorded on the account transcript for that year, usually alongside a TC 150 transaction.
Key takeaways
- The 10-year clock starts at assessment, not at the original filing deadline.
- Each tax year has its own separate CSED.
- The assessment date is visible on the account transcript for that year.
- A balance is generally uncollectible by the IRS once its CSED passes.
Tolling events
What can extend or pause it
Certain actions pause, or "toll," the CSED clock, effectively extending the date further out. Common tolling events include filing for bankruptcy, submitting an Offer in Compromise while it is under IRS review, and living outside the United States for an extended period.
| Effect on CSED | Typical duration | |
|---|---|---|
| Bankruptcy filing | Pauses the clock | Length of the bankruptcy proceeding, plus additional time |
| Offer in Compromise pending | Pauses the clock | Length of IRS review, plus a statutory add-on |
| Extended time abroad | Pauses the clock | Duration of continuous absence beyond a set threshold |
Practical impact
Why it matters
Knowing your CSED helps you understand how long a balance can realistically be pursued by the IRS, which can inform decisions about payment plans, settlement options, or simply how much urgency a given balance deserves. A balance close to its CSED is a different situation than one that was just assessed.
FAQ
Frequently asked questions
Can I find my CSED myself?+
Your account transcript shows the assessment date each balance is based on, which is the starting point for calculating that year’s CSED. Ongoing Monitoring tracks upcoming CSEDs on your dashboard automatically.
Does the CSED reset if I make a partial payment?+
A payment on its own does not reset or extend the CSED. Certain other actions — like the tolling events above — are what change the date, not payment activity itself.
What happens once a CSED passes?+
Once a balance’s CSED passes, the IRS generally can no longer legally collect that specific debt, and it is typically written off the account.
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