Currently Not Collectible (CNC) status is when the IRS agrees to temporarily stop trying to collect a tax debt because paying it would cause you economic hardship. The debt doesn't go away, but the IRS stops levies, garnishments, and collection calls. And critically, the 10-year collection statute keeps running.
Who qualifies: You qualify for CNC if paying your tax debt would prevent you from meeting basic living expenses: rent or mortgage, utilities, food, transportation, health care, and similar necessities. The IRS uses their own expense standards (Collection Financial Standards) to determine what's "reasonable." These standards vary by location and family size. You can find them on irs.gov.
How to request it: Call the IRS at 1-800-829-1040 or respond to a collection notice. You'll need to fill out Form 433-F (Collection Information Statement) with your income, expenses, and assets. Have recent pay stubs, bank statements, and bills ready. For debts under $10,000, the IRS sometimes grants CNC over the phone without Form 433-F. For larger debts, they'll want documentation.
What happens once you're in CNC:
Active collection stops. No more levies or garnishment threats. Your account gets a "53" code internally, meaning shelved. Penalties and interest keep accruing. Your debt balance grows, but nobody's actively coming after it. The IRS will continue to apply any future tax refunds to your balance. If you're expecting a refund, you won't get it while in CNC status.
The IRS reviews CNC accounts periodically (usually annually). If your income goes up significantly, they may pull you out of CNC and restart collection. This is triggered by W-2 and 1099 data that shows your earnings have increased above the threshold that qualified you.
Why CNC can be strategic: Because the 10-year collection statute doesn't pause during CNC (unlike with an OIC or installment agreement request), your debt continues aging toward the CSED. If you owe $30,000 with 6 years left on the statute and your income genuinely can't cover the payments, CNC status lets the clock keep ticking. After 6 years, the debt expires.
The downside: A federal tax lien may still be filed (or remain in place) during CNC status. This affects your ability to sell property, take out loans, or refinance. And if your financial situation improves, you're back in active collection.
CNC is not a permanent solution. It's a pause button. But for people who are genuinely struggling, it provides breathing room while keeping all future options open.