The CP521 is a routine statement for taxpayers with active installment agreements. It shows your current balance, the payment amount due, the due date, and how your prior payments were applied. Think of it as your IRS payment plan statement.
What to Review
Compare the balance on the CP521 to the prior statement. Your balance should be decreasing, but it may decrease slower than expected because interest continues to accrue on the unpaid portion. A $30,000 balance with $500 monthly payments might only decrease by $350 per month because $150 goes to interest.
Verify that your payments are reflected. If you made a payment that isn't showing, contact the IRS with proof of payment. Misapplied or lost payments can trigger default notices if not corrected.
Payment Due Date
Make your payment by the date shown on the CP521. Late payments can trigger default proceedings (CP523, LT23, LT24). If the due date doesn't align with your pay schedule, contact the IRS to change it. They'll usually accommodate a different day of the month.
Automatic Payments
If you're on a Direct Debit Installment Agreement (DDIA), payments are withdrawn automatically from your bank account. The CP521 confirms the debit amount and date. Make sure your bank account has sufficient funds on the debit date. A returned payment can trigger default.
If you have questions about your installment agreement or a CP521, call us at (813) 229-7100.