The IRS has 10 years from assessment to collect. After that, the debt expires. Florida's asset protections mean the IRS may have difficulty collecting the full amount during that window, making CNC status combined with a running statute a viable endgame.
Watch for tolling events that pause the clock: OIC applications, bankruptcy, CDP hearings. Each adds time. Knowing your exact CSED dates requires transcripts and careful calculation.
Let me pull your transcripts and calculate when your debt expires.