How to find your IRS CSED date on an account transcript

What is the IRS CSED date?

The IRS CSED date, or Collection Statute Expiration Date, is the last day the IRS can legally collect a particular tax assessment. Under IRC 6502 the IRS generally has 10 years from the date of assessment to collect the tax, penalties and interest, and the CSED marks the end of that window.

In plain terms, the CSED IRS meaning is 'the expiration date on a tax debt.' After it passes, the IRS generally must stop collection on that assessment and may not issue new levies for it. The broader rules, including what the IRS can still do near the end, are on our IRS collection statute of limitations page. This guide focuses on the practical job of finding and checking your own date.

How do you get an IRS account transcript?

You get an account transcript, the record that shows assessment dates, through your IRS Online Account, the Get Transcript tool, or Form 4506-T by mail. The IRS also runs an automated transcript phone line listed on its collection-time page.

1. Sign in to your IRS Online Account and open the tax records section.
2. Choose Account Transcript, not Tax Return Transcript. The return transcript shows line items from your return, but not later assessments or payments.
3. Select each tax year you owe for and download or print it.
4. If you cannot verify your identity online, send Form 4506-T, Request for Transcript of Tax Return, and check the box for an account transcript.
5. Repeat for every year that has a balance. The check if you owe back taxes guide shows how to find which years those are.

How do you read your IRS CSED on the transcript?

To read your IRS CSED transcript information, go to the Transactions section and find each three-digit transaction code (TC) that records an assessment, with the date beneath it. The IRS says to use that date as the starting point. The standard account transcript does not print a labeled CSED line, so you work it out from those codes and dates.

The Internal Revenue Manual (IRM 5.1.19) lists these codes. The code list is also a guide to how the IRS tracks your file, so any TC 480, TC 520 or TC 971 entry deserves a note with its start date and, if one appears, its reversal date.

Which date to use for TC 150

Use the date printed next to TC 150, not the date you mailed the return and not the April due date. The assessment date reflects when the IRS processed the return, which can be weeks after it arrived. For a late return or a substitute for return, the assessment can come years after the tax year ended, which is why late filers often have later CSEDs than they expect.

How do suspensions change your collection statute expiration date?

Suspensions add time to the collection statute expiration date because the 10-year clock stops while certain events are in progress. The IRS lists these main suspension events:

Overlapping suspensions are not double-counted, according to the Taxpayer Advocate Service. If an offer was pending while a bankruptcy case was open, the overlapping days count only once. An equivalent hearing, unlike a Collection Due Process hearing, does not suspend the CSED, as Publication 594 notes.

Is there an IRS CSED calculator?

The IRS does not offer a public IRS CSED calculator. You can build your own estimate with a spreadsheet or a calendar by counting days, as the worked example below shows.

Worked example

Suppose a 2020 return was filed late and the account transcript shows TC 150 dated May 24, 2021. The base CSED is May 24, 2031. The transcript also shows TC 480 for an Offer in Compromise that was pending for 150 days before it was rejected, with no appeal. That adds 150 days plus 30 days after rejection, or 180 days.

In this example the extra tax from the CP2000 remains collectible about 16 months longer than the original balance. Unless you designate a voluntary payment in writing, the IRS decides how to apply it, so do not assume a payment reduced the newer assessment first.

How do you confirm your CSED with the IRS?

You confirm your CSED by asking the IRS directly or through an authorized representative, because the IRS's internal systems display a computed CSED for each assessment even though your transcript does not. Call the number on your most recent notice and ask for the CSED for each tax period and each assessment.

• Have your transcript with your own estimate ready, so you can spot differences.
• Ask which suspension events the IRS has recorded and their start and end dates.
• If you have a representative, they can request the same information using Form 2848, Power of Attorney.
• If the IRS figure differs from yours and you cannot resolve it, the Taxpayer Advocate Service can help review the account.

Some IRS letters, including agreements to extend the period, will also show the date. If you are asked to sign Form 900, Tax Collection Waiver, read it carefully; the IRS Manual says it is used only with certain partial payment installment agreements and limits the extension to no more than five years, plus up to one year.

Why your IRS CSED date matters when choosing an option

Your CSED shapes which relief options make sense. A partial payment installment agreement is sized to pay what you can until the CSED, and the remaining balance expires. A debt with little time left can also affect whether an Offer in Compromise is worth filing, since the offer itself suspends the clock.

The date also matters when a private collection agency contacts you. Accounts assigned to private debt collection are still subject to the same CSED, and a collector cannot extend it. The IRS collection process hub puts the statute in context with liens, levies and notices.