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Official form guide
Form 433-FSP: 433-F (sp)
IRS Form 433-FSP is a detailed financial statement used by the IRS to evaluate a taxpayer’s ability to pay a tax debt. It is required when a taxpayer requests a payment plan, installment agreement, or offer in compromise.
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IRS Form 433-FSP - 433-F (sp)
IRS Form 433-FSP is a detailed financial statement used by the IRS to evaluate a taxpayer’s ability to pay a tax debt. It is required when a taxpayer requests a payment plan, installment agreement, or offer in compromise.
Risk Radar
Scan points- 1A single mis‑typed dollar amount can reset the entire payment‑plan review.
- 2Leaving a blank field that the IRS expects a number for
- 3Misreporting monthly expenses (e.g., inflating rent)
- 4Failing to attach required supporting documents
- 5Signing the form with an outdated address
Plain English
Think of this form as a snapshot of your income, expenses, assets, and liabilities that the IRS uses to decide if you can afford a payment plan. You fill it out when you owe taxes and need more time or a reduced payment schedule. The IRS reviews the numbers to set a realistic monthly amount.
Submission Date
- Filing date: 2024-12-17 22:12:05
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use this form when you request an installment agreement or offer in compromise.
- Do not use it for a simple extension of time to file.
- If you owe less than $10,000 and can pay within 72 hours, consider Form 9465 instead.
Form selector
Use this form or another form?
Owe < $10,000 & can pay quickly
Simpler, only requires payment amount
✓ Verify balance first
Requesting a partial payment installment
Partial plan needs detailed finances
✓ Confirm eligibility for partial plan
Deadline or filing window
The IRS does not set a universal deadline for Form 433‑FSP; it must be received before the agency approves any payment arrangement. If you miss the internal review window, the IRS may suspend collection actions until a complete form is submitted.
- —Monthly net income | Income – Allowable expenses | Available payment amount | Verify expenses are reasonable
Checklist
What you need before filling it out
Income section
Recent pay stubs or 1099s · Most recent 2 months
Expense section
Utility bills, rent/mortgage statements · Last 3 months
Asset section
Bank statements, vehicle titles · Current statements
Liability section
Loan statements, credit card bills · Latest statements
Before you submit
- 1All required fields filled with dollar amounts
- 2Signature(s) and date present
- 3Current edition of the form used
- 4Supporting documents attached and labeled
- 5Mailing address matches IRS notice
- 6Copy of the completed form retained
- 7Proof of mailing (certified mail receipt) saved
How to file this form
- 1Collect income, expense, asset, and liability documents.
- 2Download the 2024 edition of Form 433‑FSP from IRS.gov.
- 3Enter numbers, round to whole dollars, and double‑check totals.
- 4Attach required documents (pay stubs, statements, etc.).
- 5Sign and date the form.
- 6Mail to the address on your IRS notice or follow any fax/online instructions provided.
- 7Record the tracking number or fax confirmation.
Known limitations
- 1Form does not calculate the exact monthly payment; IRS makes the final determination.
- 2Only the most recent 12 months of data are considered; older info may be ignored.
- 3The form cannot be submitted electronically unless the IRS specifically requests a scanned copy.
- 4If the taxpayer’s situation changes after filing, a new Form 433‑FSP may be required.
Field map
Compact field-by-field guide
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
Almost done reviewing the fields?
Fillable formOpen in Editor->Check the notice you received from the IRS; it will state whether a Form 433‑FSP is required and the address to send it. If no notice exists, contact the IRS to confirm the need.
What changed or needs a fresh check
- Edition date – use the version dated 2024 or later
- Fee – no filing fee for the form itself
- Mailing address – match the address on your IRS notice
- Signature line – include both taxpayer and spouse if filing jointly
- Attachment list – ensure all required documents are included
Quick Facts
Downloads
After you file
- 1Keep the mailed copy and receipt in a tax file.
- 2Monitor mail for an IRS response or request for additional information.
- 3If approved, note the payment amount and due date in your calendar.
- 4If denied, review the denial letter for specific reasons and consider a revised submission.
- 5Pay the first installment by the due date indicated.
- 6Update the form if income or expenses change significantly.
Sources
- SRCForm 433‑FSP official title and purposeIRS.gov
- SRCEdition date requirementIRS instructions page
- SRCSignature requirementForm instructions
- SRCMailing address guidanceIRS notice referenced in instructions
- SRCNo filing feeIRS fee schedule
- SRCTypical use with installment agreementsIRS Publication 594
- SRCNot found in provided sourceexact deadline for submission
- SRCNot found in provided sourceelectronic filing options beyond fax/scan
Common confusion points
Income vs. net income
Taxpayers often list gross wages
→ Use after‑tax amount shown on pay stub
Allowable vs. actual expenses
IRS has standard expense limits
→ Compare to IRS Publication 463
Joint filing requirement
Some think only one spouse must file
→ Both spouses must disclose shared assets
Asset valuation
Market value vs. purchase price
→ Use current fair market value
Deadline interpretation
No universal deadline
→ Follow the date on the IRS notice
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- Request a Collection Due Process (CDP) hearing using Form 12153
Source transparency
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