The 10-Year Rule (IRC § 6502)
Under Internal Revenue Code Section 6502, the IRS has 10 years from the date of assessment to collect a tax liability. After this period, the debt is legally uncollectible and must be written off.
The key date is the Assessment Date, not the due date of the return. Assessment typically occurs:
- Filed returns: A few weeks after your return is processed
- IRS adjustments: When the IRS makes changes to your return
- Substitute for Return (SFR): When the IRS files a return on your behalf
CSED = Assessment Date + 10 Years + Tolling Days
Finding Your Assessment Date
Request your Account Transcriptfrom the IRS to find your exact assessment date. Look for the "Assessment Date" field on the transcript.
Source: IRS.gov
What "Tolls" the Clock?
Certain events toll (pause) the 10-year collection period. During tolling, the IRS cannot actively collect, but the clock also stops running. When the event ends, the clock resumes where it left off, plus any additional days specified by law.
| Tolling Event | Description | Additional Days |
|---|---|---|
| Offer in Compromise (OIC) Pending | Time from filing to rejection, plus 30 days | +30 days |
| Collection Due Process (CDP) Hearing | Time from request to resolution | +0 days |
| Bankruptcy | Time in bankruptcy, plus 6 months | +180 days |
| Living Outside the US | Any period of 6+ months continuous residence abroad | +0 days |
| Installment Agreement Request | Time while request is pending, plus 30 days if rejected | +30 days |
| Innocent Spouse Claim | Time from filing to resolution | +0 days |
| Military Combat Zone Deferment | Time in combat zone, plus 180 days | +180 days |
The OIC Trap
Filing an Offer in Compromise that gets rejected tolls the clock for the entire time it was pending, plus 30 days. This can add months or even years to your CSED. Only file an OIC if you have a realistic chance of acceptance.
Source: IRM 5.8.1
Q2 2026 Interest Rate: Your Debt is Growing
While you wait for the CSED, your debt continues to accrue interest. The current underpayment interest rate for Q2 2026 (April 1 – June 30) is 6%, compounded daily.
Daily Interest Accrual Example
Debt Balance
$50,000
Daily Accrual
$8.22
Annual Growth
$3,000
Formula: Principal × (Rate / 365) = Daily Interest
This is why the "zero-balance strategy" (waiting for CSED) requires careful calculation. If you have 5 years remaining and your debt is growing at 6% annually, you need to weigh whether paying now is better than waiting.
State vs. Federal: The 20-Year Hazard
While the federal IRS has a 10-year collection statute, many states have significantly longer periods. This creates a trap for taxpayers who assume state rules mirror federal.
California (FTB)
20 Years
The California Franchise Tax Board can collect for a full decade after the IRS has stopped.
New York (DTF)
20 Years
New York also has a 20-year statute, plus aggressive enforcement including driver's license suspension.
Check Your State
Use the State Tax Relief Matrix to find your state's collection statute. Some states (like Texas) have no income tax but can still collect franchise taxes.
Source: State Tax Matrix
The "Zero-Balance" Strategy
Some taxpayers choose to monitor their CSED and wait for it to expire rather than paying. This is sometimes called the "zero-balance" or "run out the clock" strategy.
When It May Work
- • Limited time remaining (2-3 years)
- • You are "Currently Not Collectible" status
- • No significant assets at risk
- • State statute is also near expiration
- • Interest accrual is manageable
When It Fails
- • 5+ years remaining (debt grows significantly)
- • State has a longer statute (CA/NY: 20 years)
- • IRS files a lien (affects credit for years)
- • You trigger tolling events (OIC, CDP, etc.)
- • You make voluntary payments resetting psychology
Critical: Voluntary payments do not legally reset the CSED clock. However, they can signal to the IRS that you have ability to pay, potentially triggering more aggressive collection.
Calculate Your CSED
Enter your assessment date and tolling events to find your exact Collection Statute Expiration Date.
Open CSED CalculatorPeople Also Ask
When does my IRS tax debt expire?
Under IRC Section 6502, the IRS generally has 10 years from the date your tax was assessed to collect the debt. This is called the Collection Statute Expiration Date (CSED). After this date, the IRS can no longer legally collect, and the debt is written off. However, certain events can pause (toll) the clock, extending this period.
What events pause the CSED clock?
Several events toll (pause) the CSED: filing an Offer in Compromise (clock pauses plus 30 days after rejection), requesting a Collection Due Process hearing, filing bankruptcy (pauses plus 6 months after discharge), living outside the US for 6+ months continuously, and pending Installment Agreement requests. Each event adds days to your original 10-year period.
Does California have a 20-year collection statute?
Yes. While the federal IRS has a 10-year statute, California's Franchise Tax Board (FTB) has a 20-year collection period. This means California can continue collecting state tax debt for a decade after the IRS has given up. New York (DTF) also has a 20-year statute.
Can I accidentally reset my CSED clock?
Generally, no. Making voluntary payments does not reset the clock. However, signing certain IRS forms (like Form 900) can extend or waive the CSED. Never sign any document that mentions 'extending the statute' without professional advice. The IRS cannot force you to extend, but they may make it a condition of certain agreements.
What is the difference between CSED and ASED?
CSED (Collection Statute Expiration Date) is the deadline for the IRS to collect assessed taxes. ASED (Assessment Statute Expiration Date) is the deadline for the IRS to assess additional taxes on a filed return (generally 3 years). These are different clocks. You can owe a debt (CSED running) even if the IRS can no longer audit that year (ASED expired).
Authority Citations
This content is based on the following official IRS sources. All links open in a new tab.
- IRC § 6502— Collection After Assessment
- IRM 5.14.1— Statute of Limitations
- IRM 5.1.19— Collection Statute Expiration
- Publication 594— The IRS Collection Process
- Rev. Rul. 2026-8— Q2 2026 Interest Rates
Information current as of 2026. Tax laws change frequently. Verify with official IRS sources before taking action.