The IRS Collection Timeline

A Comprehensive Procedural Analysis of Enforcement Cycles & Statutory Deadlines

Master Timeline Navigation

The Internal Revenue Service collection process is a pre-programmed escalation pipeline governed by the Internal Revenue Manual (IRM). From the moment an assessment is made, the account enters a sequence of statutory notices designed to move from demand to seizure.

The Automated Collection System (ACS) Notice Stream

1
Notice CP14: The Initial Demand. Legal notice under IRC § 6303. The start of the 10-day period before a statutory lien arises.
View Detailed CP14 Guide →
2
Notice CP501: The Reminder. Sent roughly 5 weeks after inactivity on CP14. First record of "neglect or refusal" to pay.
View Detailed CP501 Guide →
3
Notice CP503: The Urgent Reminder. Moves the account into an "Active Collection" status. Final window for voluntary resolution.
View Detailed CP503 Guide →
4
Notice CP504: Intent to Levy. Grants authority to seize state tax refunds. The final automated warning.
View Detailed CP504 Guide →

The Red Line: Collection Due Process (CDP)

After the notice stream, the IRS issues the LT11 or Letter 1058. This is the most critical juncture. It provides the 30-day window to request a CDP hearing under IRC § 6330, which legally halts the seizure machine.
Technical Analysis of the Final Levy Notice →

Phase IV: Enforced Collection

If no hearing is requested, the IRS moves to physical asset recovery. This phase is characterized by the loss of financial privacy and control.

Phase V: Tactical Resolution & Tolling

The collection clock (CSED) can be stopped through formal resolution filings. These actions "toll" the timeline, providing a legal pause to enforced collection while a settlement is evaluated.

Stop the Automated Escalation

The IRS machine is relentless, but predictable. The earlier you intervene in the timeline, the more rights you preserve.

Launch TaxAssassin.app →