How to Fax IRS Form 9465 to the IRS — Installment Agreement Request
Form 9465 asks the IRS to let you pay a balance you owe in monthly installments. Most taxpayers file it with their return or mail it to the address in the instructions, and many can set up a plan through the IRS online payment agreement tool without any paper. Faxing enters the picture when an IRS notice or an assigned unit gives you a fax number to send it to. This guide covers that honest use of fax and keeping proof of when the request arrived.
Does the IRS accept a fax?
Not as a universal channel — the standard route for Form 9465 is filing it with your return or mailing it to the address listed in the instructions for your state. Fax is appropriate when a notice you received, or the IRS employee or unit handling your balance, specifically gives you a fax number to send the request to.
Finding the official fax number
There is no single published fax line for every 9465. The number to use comes from the IRS notice you are responding to, or from the revenue officer, ACS unit, or campus that told you to fax it. Do not reuse a number from an unrelated letter — take it from the correspondence about your specific balance, or confirm the correct filing method in the current instructions.
What to include on every page
- Your name, address, and SSN, plus your spouse's SSN if it is a joint balance
- The tax form number and the tax year or years the balance came from
- The proposed monthly payment amount and the day of the month you will pay
- Your bank routing and account numbers if you are requesting direct debit
- The notice or case number from the letter that directed you to fax the form
How to fax IRS Form 9465 (Installment Agreement Request) to the IRS
- 1Fill in Form 9465 with your balance details, proposed payment, and payment date
- 2Locate the fax number on the IRS notice or from the unit handling your account
- 3Confirm that fax route is the one the correspondence actually directs, not a guess
- 4Scan or export the completed 9465 as a clear PDF
- 5Sign in to Send FAX Mail, upload the PDF, enter the fax number from your notice, and send
- 6Keep the dated confirmation with the notice so you can show when you responded
Confirming it arrived
Send FAX Mail returns a dated confirmation the instant the request reaches the fax line named on your notice — file it with that correspondence. The IRS reviews installment requests over several weeks and responds by mail with an approval, a request for more information, or a denial, so the confirmation is your record that you answered the notice within its response window.
What’s current · as of July 2026
Recent updates
Federal agencies still write fax into new rules and notices
The Federal Register — the daily journal of U.S. federal rulemaking — regularly publishes rules and notices that reference fax as an accepted or required submission channel for filings with agencies like the IRS, SSA, and CMS. That is why fax remains a live requirement for many official forms even as electronic portals expand.
Federal Register →
Faxing IRS Form 9465 (Installment Agreement Request) to the IRS — FAQ
No — 9465 does not have an open fax line the way some authorizations do. The correct number only exists on the notice you are answering or comes from the IRS unit working your balance. If you have neither, the form belongs in the mail address the instructions give, or you may qualify for the online payment agreement tool.
Often, yes. Many taxpayers within the balance thresholds can arrange an installment agreement through the IRS online payment agreement application without filing 9465 at all. Faxing the form makes sense mainly when a notice directs it or your situation falls outside what the online tool handles.
Read the IRS letter tied to your balance — a notice or the assigned revenue officer or ACS unit supplies the fax destination. Use that source rather than a number from a different letter, and if none is given, confirm the proper mailing address in the current instructions.
Review commonly takes a few weeks, and the IRS replies by mail with an acceptance, a demand for more detail, or a rejection. Interest and penalties keep accruing until a plan is approved, so the dated fax confirmation matters as proof you submitted your request promptly.
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