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IRS Notice Library

Match the CP or LT code on your letter to understand why the IRS contacted you and what to do next.

All Balance Due Intent to Levy Payment Plans Collection Unfiled Returns Audits & Adjustments Returns & Refunds Business International

Urgent Payment Plans

CP523 — Intent to Terminate Installment Agreement

Your payment plan is in default, usually from a missed payment or a new unpaid balance.

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