FHA Self-Sufficiency Checker
The FHA self-sufficiency test kills most 3-4 unit house-hack deals before buyers realize it exists. Paste a listing URL, let our Artificial Intelligence analyze it, and find out in 10 seconds whether your deal actually qualifies.
Paste a listing URL. Our Artificial Intelligence handles the rest.
Drop in a link from Zillow, Redfin, Realtor.com, or Homes.com. AI extracts the price, units, taxes, and fair-market rent — then runs the self-sufficiency math in one shot.
The rule
How the test works
The FHA self-sufficiency test applies to 3-unit and 4-unit properties financed with an FHA 203(b) loan. The rule is straightforward but unforgiving: 75% of the total market rent across all units must cover the full monthly PITI plus FHA's mortgage insurance premium. If it doesn't, the loan will not close.
The 25% haircut is FHA's built-in buffer for vacancy and collection loss. The rent number used is the appraiser's fair-market rent estimate — not what the current tenants pay, and not what the listing advertises. Our A.I. estimates the appraiser's likely number using HUD Fair Market Rent data, unit bedroom counts, neighborhood comps, and condition signals.
The math is unambiguous. The hard part is running it before you fall in love with a property. That's the entire point of this tool.
Frequently asked
Questions & answers
What is the FHA self-sufficiency test?
It's an FHA rule that applies to 3-unit and 4-unit properties. To qualify for an FHA loan on these properties, 75% of the total market rent across all units must cover the full monthly PITI (principal, interest, taxes, insurance) plus the FHA mortgage insurance premium (MIP). If it doesn't, the loan won't close — no matter how strong your income is.
Why 75%? Where does that number come from?
HUD builds in a 25% vacancy and collection buffer. The logic: even in a good rental market, an appraiser's fair-market rent estimate plus 25% slack should still cover the mortgage. This prevents FHA-insured loans on properties that can't self-sustain.
Does this test apply to duplexes or single-family homes?
No. The self-sufficiency test only applies to 3-unit and 4-unit properties. Duplexes (2-unit) and single-family homes are exempt from this specific rule, though other FHA guidelines still apply.
How does the A.I. estimate market rent?
Our Artificial Intelligence combines HUD Fair Market Rent data, unit size and bedroom count from the listing, condition signals parsed from listing photos and descriptions, and neighborhood comps. It returns a confidence score so you know how much to trust the auto-populated numbers — and you can always override them.
Is this tool really free?
Yes. Free to use, no accounts, no paywalls, no email required. The tool is supported by unobtrusive ads elsewhere on the site. Use it as many times as you want.
Can I save a deal or share it?
Every scenario will be shareable via URL in an upcoming update. For now, the calculator state lives in your browser session — tweak the sliders and screenshot the result.
What if the A.I. can't parse my listing?
You can always fall back to manual entry — just expand 'enter values manually' underneath the URL input. We're continuously expanding the set of listing sources our AI understands.
How accurate is the PITI + MIP calculation?
The principal, interest, taxes, insurance, and MIP calculations use the exact formulas FHA underwriters use: 96.5% LTV, 1.75% upfront MIP financed into the loan, 0.55% annual MIP, and standard 30-year amortization. Your lender's final numbers will match within a few dollars.
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