Fill IRS Form 433-F online — free, in your browser
IRS Form 433-F, Collection Information Statement, is the financial disclosure individuals give the IRS to show their income, expenses, assets, and liabilities when arranging to resolve a balance owed — most often to set up an installment agreement or request currently-not-collectible status. AttachKit opens the official blank PDF and fills it right in your browser: it auto-fills your name-and-address block, Social Security number, and home phone from a saved profile using on-device heuristics, then leaves the income, expense, and asset sections for you to complete and review. Your SSN is filled on-device and never sent to any third-party AI, and your PDF never leaves your device.
Your PDF never leaves your browser — open DevTools → Network and watch: the file is never uploaded.
Who needs it: Individual taxpayers who owe the IRS and are requesting an installment agreement, currently-not-collectible status, or another collection resolution — and the tax professionals who prepare Form 433-F on their behalf.
Need a blank Form 433-F? Download from the source, then drop it in below.
Form edition: Rev. July 2024. Page last reviewed 2026-06-24.
Why fill it here
- Auto-fills your name and address, SSN, and home phone from a saved profile, on-device — your SSN never syncs to our servers, even when you're signed in.
- Runs 100% in your browser: the PDF never uploads, and any optional AI assist only ever sees field labels, never your document or your SSN.
- Free to fill unlimited forms (10 signed PDFs/mo on the free tier); you complete the income, expense, and asset details yourself before submitting.
Fill your Form 433-F now
Form 433-F questions, answered
General information, not legal or tax advice
This page is general information about a commonly-used tax form. Tax law is complex and fact-specific — for advice on your return, consult a CPA, enrolled agent, or tax attorney. AttachKit fills the PDF; the IRS holds you responsible for what's on it.
- Does AttachKit send Form 433-F to the IRS?
- No. AttachKit fills the PDF in your browser; you download it and submit it yourself — by fax or mail per the IRS instructions, or as directed by the revenue officer handling your account. This isn't tax or financial advice.
- Is it safe to put my SSN in my profile?
- Your SSN stays in your browser's localStorage and never syncs to our servers — even when you're signed in (your name and address sync; your SSN never does). AttachKit fills the SSN box on-device, so it isn't sent to any third-party AI.
- Can I sign it in AttachKit?
- Yes — fill via /fill/433-f, then click 'Sign' in the menu to add your signature on the same PDF, still entirely in your browser.
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Done filling? Also sign a PDF, convert PDF to Word, Word to PDF — or see AttachKit for accountants.
AttachKit is a private, independent tool for filling and signing PDFs on your own device. It is not a government agency, law firm, or filing service, and is not affiliated with or endorsed by the IRS, USCIS, the U.S. Department of State, or any government body. Forms are provided for convenience — always download the current version and instructions from the official .gov website, and your completed document never leaves your browser.