IRS Letter 2273C: Installment Agreement Accepted, Terms Explained
Letter 2273C means the IRS accepted or reinstated your installment agreement. It lays out the payment terms. Follow them to avoid default.
Numbers covered by this guide
Letter 2273C
Ltr 2273C
Check the identifier and follow the instructions on your own notice.
Published by the Law Offices of Darrin T. Mish, P.A.•Updated February 14, 2026
General information only, not legal advice. Using this page does not create an attorney-client relationship. This information may be incomplete or out of date and is provided without any guarantee; follow the instructions and deadline on your own notice. Full terms and disclaimer
Notice
Letter 2273C / Ltr 2273C
Urgency
Attention
Deadline
Make each payment by its due date
Your first move
Confirm the payment amount, due date, and balance in the letter, then make every payment on time and stay current on new taxes.
See it explained
Letter 2273C in plain English
Letter 2273C: what it means, in 30 secondsA 30-second overview from tax attorney Darrin T. Mish: what this notice is, the deadline, and your first move.
Letter 2273C is good news. The IRS accepted your installment agreement and is explaining its terms. It is not an identity verification letter. The IRS also uses it to tell you an agreement has been reinstated, along with the terms going forward.
What This Letter Means
You have a payment plan. The letter states the terms, which can include the monthly amount, when payments are due, and any added conditions. Some conditions may also appear on Form 433-D if you signed one.
What to Check
The monthly payment amount and the due date.
The tax periods and balance covered.
Any special conditions written into the letter.
If anything doesn't match what you agreed to, call the number on the letter right away.
How to Keep the Agreement
Make every payment on time and for the full amount.
File all future returns on time.
Pay future taxes in full when due. For many people that means adjusting withholding or making estimated payments.
Expect future refunds to be applied to the balance.
Missing a payment or running up a new balance can put the agreement in default. If you know you can't make a payment, contact the IRS before it's due. Changes are easier before a default than after.
Penalties and Interest
An installment agreement doesn't stop interest. Penalties and interest continue to accrue on the unpaid balance until it is paid in full. Paying more than the minimum when you can shortens the plan and lowers the total cost.
Keep this letter with your records. It is your proof of the terms.
If you want help keeping your IRS payment plan on track, call us at (813) 229-7100.
Want a second set of eyes on this letter?
Free consultation with Darrin T. Mish, a Tampa tax attorney licensed since 1993 and admitted to the U.S. Tax Court. Bring the letter.