Under IRC 6502, the IRS generally must collect a tax by levy or court proceeding within 10 years after the tax is assessed. Each year and each assessment has its own clock. Most people have no idea the clock exists. The IRS will not remind you.
How it works
The clock runs from the date of assessment, not the date you filed. Your account transcripts show the assessment dates, which is where every serious collection analysis starts.
What can extend or pause it
Certain events can suspend or extend the period, and an installment agreement can include a written agreement extending it. Before you sign anything that extends the collection period, have a lawyer read it. Once you agree, you cannot take it back.
Strategy, not tricks
Knowing the collection statute date changes which option makes sense: a payment plan, an offer, or currently not collectible status. The law sets the deadline. Using it is not gaming the system.
General information only, not legal advice. Reading this page does not create an attorney-client relationship. Laws and IRS procedures change; the sources cited were reviewed on the date shown above.