10-Year Statute of Limitations for Tax Debt Collections In most cases, the IRS has 10 years to collect an unpaid tax bill from you. The IRS sometimes refers to the end of this deadline as the Collection Statute Expiration Date, or CSED.
If you don't qualify for an IA through OPA, you may also request an IA by submitting Form 9465, Installment Agreement Request, with the IRS. When you request an IA using the form, generally, you'll receive a response from the IRS within 30 days notifying you of whether the IA request was approved or rejected.
Or: For individual tax returns, call 1-800-829-1040, 7 AM - 7 PM Monday through Friday local time. The wait time to speak with a representative may be long. This option works best for less complex questions.