FHA Purchase Calculator — Payment, MIP & DTI in One Place
FHA loans have a lower down payment minimum than conventional financing — but they also come with mortgage insurance premiums (MIP) and debt-to-income rules that work differently than a conventional loan. This calculator builds your full estimated payment, including upfront and annual MIP, and shows you exactly where your front-end and back-end debt-to-income ratios land.
🏠 FHA Purchase Calculator
Enter your numbers below — everything updates instantly.
Estimate only. Actual MIP, rate, taxes, and insurance vary by lender, county, and your specific file. Call Kirk or Ken for a real quote.
How FHA Mortgage Insurance (MIP) Actually Works
Every FHA loan carries two separate mortgage insurance charges — this trips up a lot of first-time FHA borrowers who expect just one number:
- Upfront MIP (UFMIP): 1.75% of your base loan amount, charged once at closing. Almost every borrower finances this into the loan rather than paying it in cash — it's what turns your "base loan amount" into your "total loan amount" in the calculator above.
- Annual MIP: Charged monthly as part of your payment for the life of the loan (if your down payment is under 10%) or for 11 years (if you put down 10% or more). For most 30-year FHA loans, this runs 0.50% with 5%+ down or 0.55% with the minimum 3.5% down, calculated on your loan balance.
Unlike conventional PMI, FHA's MIP rate does not change based on your credit score — a 580 and a 780 pay the exact same MIP rate. This is a big part of why FHA remains competitive for buyers who are still building credit.
The Only Way to Remove FHA MIP (With Under 10% Down)
If you put down less than 10%, FHA's annual MIP lasts for the entire life of the loan — there's no automatic cancellation point the way there is with conventional PMI at 78% LTV. The standard path off of it is refinancing into a conventional loan once you've built roughly 20% equity, either through paydown or appreciation. We track this for our FHA clients and reach out proactively once refinancing into a conventional loan without mortgage insurance starts to make sense.
FHA Debt-to-Income Ratios — Why the Real Number Is Higher Than People Expect
Most FHA content online quotes a flat 43% back-end DTI limit, and that's true as the standard manual underwriting guideline. But it's not the whole picture. When a loan runs through FHA's automated underwriting system (TOTAL Scorecard) and comes back as an Accept, and the file has strong compensating factors — solid reserves, minimal payment shock, residual income, a long employment history — the back-end ratio can be approved significantly higher, up to 56.99% in many cases.
This is one of the most underused advantages of FHA financing for buyers who look "maxed out" on paper using a generic 43% rule of thumb. The calculator above shows you both your front-end (housing-only) and back-end (total debt) ratios so you can see exactly where you land — and whether AUS approval with compensating factors could open up more purchasing power than you thought you had.
Front-End vs. Back-End — What's the Difference?
Front-end ratio only counts your housing payment (principal, interest, taxes, insurance, MIP, and HOA) against your gross monthly income. FHA's general guideline target is 31%.
Back-end ratio adds every other monthly debt obligation on top of housing — car payments, student loans, credit cards, personal loans — all divided by your gross monthly income. This is the number that has more flexibility with strong compensating factors, up to that 56.99% ceiling.
FHA Loan Limits in 2026
FHA loan limits are set county by county based on local home prices. The national floor for a one-unit home in 2026 sits at $524,225 in lower-cost areas, while high-cost counties can go as high as the national ceiling of $806,500 — the same as the 2026 conventional conforming loan limit. If you're not sure which limit applies to the county you're buying in, call us and we'll check it for you before you start house hunting.
Frequently Asked Questions
What credit score do I need for an FHA loan?
You can qualify for FHA's minimum 3.5% down payment with a credit score of 580 or higher. With a score between 500 and 579, FHA still allows financing, but the minimum down payment increases to 10%. Most lenders, including us, can work with scores well below what conventional financing requires.
Can my back-end DTI really go above 43% on an FHA loan?
Yes — 43% is the standard manual underwriting guideline, but it is not a hard ceiling for every FHA loan. When your file runs through FHA's TOTAL Scorecard automated underwriting system and comes back as an Accept, combined with strong compensating factors like solid cash reserves, minimal increase in your housing payment, or significant residual income, back-end ratios up to 56.99% can be approved. This varies file by file, which is exactly why running your specific numbers with a lender matters more than a generic online rule of thumb.
How is FHA mortgage insurance different from conventional PMI?
FHA MIP is required on every FHA loan regardless of your down payment amount, and it includes both an upfront charge (1.75%) and an ongoing annual charge. It does not vary by credit score. Conventional PMI, by contrast, is only required with less than 20% down, has no upfront component, varies significantly based on credit score, and automatically cancels once you reach 78% loan-to-value. FHA MIP with under 10% down lasts for the life of the loan unless you refinance out of it.
Can I finance the upfront MIP instead of paying it in cash?
Yes — the large majority of FHA borrowers finance the 1.75% upfront MIP directly into their loan balance rather than paying it out of pocket at closing. This slightly increases your total loan amount and monthly payment, but it means you don't need that cash available on closing day. The calculator above automatically shows both your base loan amount and your total loan amount with the upfront MIP financed in.
What counts as a compensating factor for a higher DTI approval?
Common compensating factors include significant cash reserves after closing, minimal or no increase between your current housing payment and your new one, a long and stable employment history in the same line of work, additional income not reflected in your qualifying income, or a down payment larger than the FHA minimum. No single factor guarantees approval at a higher ratio — the automated underwriting system and the underwriter weigh the full file together.
