How long does Currently Not Collectible status last?

CNC status has no fixed duration. It remains in effect until one of the following occurs: your financial situation improves (the IRS monitors this annually through income checks), the Collection Statute Expiration Date (CSED) expires (10 years from assessment), you voluntarily exit CNC by contacting the IRS to set up a payment arrangement, or the IRS removes you from CNC after a periodic review. The IRS reviews CNC cases by checking your income against a threshold (typically the filing requirement threshold for your filing status). If your income exceeds this threshold, the IRS may contact you to update your financial information and potentially require payments. In practice, many taxpayers remain in CNC status for years, especially retirees, disabled individuals, and those with chronically low income. If your debt is relatively small and you have many years remaining on the CSED, CNC can effectively be a path to debt forgiveness, as the debt expires when the 10-year statute runs out. CNC can be a strategic choice: if paying your debt through an installment agreement would last 8-10 years and the total with interest would exceed the original debt, CNC may result in paying less overall (through refund offsets only) while the statute runs.