How Long Can the IRS Collect a Debt?

Generally 10 years from the date the tax was assessed, not from the year it was due. After that, section 6502 of the Internal Revenue Code bars the IRS from collecting by levy or by a court case. The date is often later than 10 years, though, because events such as a bankruptcy, an offer in compromise or a Collection Due Process hearing pause the clock while they last.

The IRS calls the end of the period the Collection Statute Expiration Date, or CSED. Knowing it can change which option makes sense for an old balance. Kathryn Meyer's page on IRS collections and enforcement describes how this "collection clock" fits with the rest of the process.

How to work out your collection dates, step by step

Get your account transcript for each year with a balance, through your IRS online account, Form 4506-T or the IRS's automated transcript line.
List each assessment in the Transactions section: original tax, audit or amended-return tax, and penalties.
Find the date the IRS shows near the three-digit transaction code; the IRS says it is generally the CSED plus any time added by law.
Add the pauses from the table below for any offer, payment plan request, hearing, bankruptcy, innocent spouse request, time abroad or military service.
Confirm with the IRS by phone, and ask the Taxpayer Advocate Service on Form 911 if you think a date is wrong.

When does the 10-year period start?

It starts on the date of each assessment, and one tax year can have several. The IRS gives these examples, each with its own CSED:

the tax shown on your original return;
additional tax from an amended return or an audit;
tax assessed on a substitute for return the IRS prepared when no return was filed;
civil penalties, and certain penalties and interest.

That is why a debt from an old year can still be collectible: an audit assessment made years after the return starts its own 10 years. If you never file and the IRS assesses tax on a substitute return, the clock starts only when that assessment is made, and a return you file later showing more tax creates a new assessment with a new date.

You can find each CSED on your IRS account transcript, near a transaction code with a date below it. The IRS says you may call it to confirm the date, and if you believe it has computed the date wrongly, you can ask the Taxpayer Advocate Service for help with Form 911.

What pauses or extends the clock?

Event	Effect on the 10 years	Source
Installment agreement request	Paused while the request is reviewed; 30 more days if it is rejected, withdrawn or terminated; paused during an appeal	IRS; IRC 6331(k)
Offer in compromise	Paused while the offer is pending; 30 more days after a rejection; paused during an appeal	IRS; IRC 6331(k)
Collection Due Process hearing request	Paused from the request until the hearing and any appeals end, and never ends sooner than 90 days after the final determination	IRC 6330(e)
Bankruptcy	Paused while collection is barred by the case, plus 6 months	IRC 6503(h)
Innocent spouse request	Paused for the requesting spouse only, until a waiver is filed or the 90 days to petition the Tax Court pass, or until a Tax Court case ends; plus 60 days	IRS; IRC 6015
Living outside the United States for 6 months or more in a row	Paused while away; at least 6 months left after you return	IRC 6503(c)
Combat zone service	Paused while in the zone, plus 180 days	IRS
Certain military service	Paused during service, plus 270 days after the military notifies the IRS	IRS

Several of these can overlap, so the real end date is a calculation, not a guess. A pause can apply to one person and not another: an innocent spouse request, for example, does not extend the clock for the other spouse.

Can the IRS ask you to extend it?

Only in narrow cases. Section 6502(a)(2) allows an extension agreed in writing when an installment agreement is entered into (the period then runs to 90 days after the agreed date) or when a levy is released after the 10 years. The Internal Revenue Manual says the IRS uses the waiver form for this, Form 900, only with a partial payment installment agreement and only in certain situations (IRM 5.1.19). Separately, if the IRS starts a court case to collect within the 10 years, collection can continue until the resulting judgment is paid or becomes unenforceable.

What happens when the period ends?

The IRS can no longer levy or sue to collect that assessment. Interest goes with it: the IRM notes that interest can be collected only as long as the underlying tax can (IRM 5.16.1, citing section 6601(g)). Two details from the IRS are worth knowing. A levy on future income served before the CSED can keep producing payments after it. And if you pay a debt after its CSED has passed, you may ask for a refund of that payment, within the time limits explained in how long you have to claim a tax refund; the IRS says it may also notify you by letter of such payments.

Why does the date matter when choosing an option?

Each way of resolving a balance interacts with the clock differently:

Offer in compromise. The IRS figures the minimum offer from what it could collect, and its forms say the usual formula does not apply if you can pay in full within the time left to collect. Filing an offer also pauses the clock. See whether you qualify for an offer in compromise.
Collection Due Process hearing. It protects you from levy while it runs, and it also pauses the clock; see what a Collection Due Process hearing is.
Currently not collectible status. It is not on the IRS's list of events that pause the clock, so the period keeps running while collection is on hold; see what currently not collectible status means.
Bankruptcy. It pauses the clock for the case plus 6 months, and it interacts with the separate rules on which taxes can be discharged; see whether income taxes can be discharged in bankruptcy.

None of this is a reason to ignore a balance. Liens, levies and penalties continue in the meantime, and a timeline built on a wrong CSED can leave you worse off.

What changes the answer

Each new assessment. An audit, amended return or penalty assessed later has its own 10 years.
A return filed after a substitute for return. If it shows less tax, the IRS may reduce the balance but the CSED stays the same; if it shows more, the original CSED stays and a new one is set for the extra tax (IRS).
Collection alternatives you request. Payment plan requests, offers and Collection Due Process hearings pause the clock while they are pending.
Life events. Bankruptcy, six months or more abroad, combat zone service and certain military service suspend it.
Which spouse acted. An innocent spouse request pauses the clock only for the spouse who filed it.
A court judgment. If the IRS sues to collect within the 10 years, collection can continue until the judgment is satisfied or unenforceable (section 6502).

For example: one tax year, two collection dates

For example, suppose a taxpayer filed her 2019 return in 2020 and the tax shown was assessed on June 1, 2020, but she did not pay it. An audit later added more tax, assessed on May 1, 2023. The original balance has a CSED of about June 1, 2030, and the audit balance about May 1, 2033, before any pauses. If she submits an offer in compromise that is pending for eight months and then rejected, both dates move out by those eight months plus 30 days. If she had instead filed bankruptcy for a year, both would move by the year plus six months. Her transcript, not the year of the return, tells her where each balance stands. This is a hypothetical, not a real case.

Common mistakes about the collection deadline

Counting from the tax year. The clock runs from each assessment date.
Forgetting the pauses. A past offer, bankruptcy or hearing request may have added months or years.
Waiting out the clock while the debt grows. Liens, levies, interest and penalties continue meanwhile.
Assuming hardship status stops the clock. It does not, which can make it more useful, not less.
Paying after the date has passed without checking. Payments after the CSED can be refunded only within the refund deadline.

What to do this week

Download your account transcripts for every year with a balance.
Make a table of each assessment, its date and the CSED the IRS shows.
List any offers, payment plan requests, hearings, bankruptcies or long stays abroad, with dates.
Call the IRS to confirm the dates, and note who you spoke with.
Use the dates to compare a payment plan, an offer and hardship status before choosing.

Frequently asked questions

Is the collection deadline the same as the audit deadline?

No. The IRS describes three separate time limits: to assess tax, to collect it, and to claim a refund. The assessment limit is explained in how far back the IRS can audit.

Does a federal tax lien last after the CSED?

No. Under section 6322 the lien continues until the liability is satisfied or becomes unenforceable by lapse of time, so it ends with the collection period. The IRS must then release it; the release rules are in whether a federal tax lien can be released or withdrawn.

Can the IRS levy during a paused period?

The IRS says it generally does not levy while the CSED is suspended, with some exceptions.

Does a payment plan extend the clock?

The request pauses it while under review. The plan itself does not extend the date unless you agree in writing in the narrow cases section 6502(a)(2) allows; see IRS payment plan options.

Does interest keep growing until the end?

Yes. Interest runs on the unpaid balance until it is paid or can no longer be collected, and the IRM notes interest can be collected only as long as the tax itself can.

Does the clock apply to the trust fund recovery penalty?

Yes. A civil penalty assessed against you has its own CSED from its assessment date.

Can you get a passport problem from an old debt?

A debt the IRS can still collect may count toward a seriously delinquent tax debt; see whether unpaid taxes can cost you your passport.

Can an old balance be sent to a private collector?

Yes. Under IRC 6306, a debt the IRS has not assigned to an employee within 2 years of assessment, or one with no contact for more than 365 days, can go to a contracted agency, which must still finish any plan by the collection expiration date. How to confirm the agency is real is covered in whether a private agency collecting your IRS debt is legitimate.

Working out your dates

A reliable CSED for each assessment is the starting point for any plan to deal with an old balance. Kathryn Meyer spent more than two decades in the IRS Office of Chief Counsel and can review your account transcripts with you and explain where each period stands. To discuss an old tax debt, contact the firm or call (571) 560-8674.

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