What Makes FHA Loans Different
FHA loans are mortgages insured by the Federal Housing Administration, an agency inside the Department of Housing and Urban Development since 1934. The insurance protects the lender against default, and that protection is what makes lenders comfortable accepting a 3.5% down payment and credit scores as low as 580. The program consistently accounts for a meaningful slice of American purchase mortgages because it fills a gap conventional lending leaves open. When you run a standard mortgage payment estimate, the formula is the same; the difference is what gets layered on top of it.
The tradeoff for that flexibility is mortgage insurance paid in two parts, an upfront premium and an annual one. Conventional borrowers with strong credit and 20% down skip private mortgage insurance entirely, while FHA borrowers pay both layers no matter how much they put down. For a buyer with a 640 credit score and 5% saved, the math often still favors FHA because conventional pricing gets expensive at that credit level. Running both scenarios side by side is the only way to know which one wins for your file.
Eligibility also depends on the property itself. The home must be your primary residence for at least a year, and it needs to pass an FHA appraisal that checks safety and soundness items like peeling paint, missing handrails, and a working roof. Investors and vacation-home buyers cannot use the program, which keeps the insurance pool focused on owner-occupants.
How FHA Mortgage Insurance Premiums Work
Every FHA loan carries two insurance charges. The upfront mortgage insurance premium is 1.75% of the base loan amount, due at closing but almost always financed into the balance, where it compounds quietly for the life of the loan. On a $386,000 base loan, that is $6,755 added before you make a single payment. The annual mortgage insurance premium, called MIP, is then charged each month as a percentage of the balance, collected in your regular payment alongside taxes and hazard insurance.
The annual rate depends on your loan term and loan to value ratio. On 30-year loans, current HUD pricing sets it at 0.55% when you put less than 5% down and 0.50% at 5% down or more. Fifteen-year loans are cheaper still, running 0.15% at or below 90% loan to value, which makes them worth a look if the payment is manageable. Because the premium is charged on the balance that already includes the financed upfront MIP, the two layers stack, and this calculator reflects that stacking in its result.
MIP should not be confused with the hazard insurance your lender escrows or the title policy you buy once at closing. It is purely the FHA program fee, and it is the single biggest reason an FHA payment runs higher than a conventional quote at the same rate. Understanding exactly what it costs you each month is the point of running the numbers before you fall in love with a listing.
Down Payment Rules by Credit Score
HUD sets the minimum investment by score band. At 580 or above, you qualify for the advertised 3.5% down, which on a $400,000 home is $14,000. Between 500 and 579, the requirement jumps to 10%, and many lenders decline to work in that band at all because HUD's automated underwriting rarely approves it without strong compensating factors. There is no FHA path below a 500 score, period.
The source of the money is flexible, which surprises many first-time buyers. Gift funds from relatives, employers, unions, and approved charities can cover the entire down payment with a signed letter confirming no repayment is expected. Savings from selling a car, bonuses, and retirement-plan loans can also qualify with documentation. If you are building the cash yourself, pair this calculator with a down payment plan and a savings goal so the target number and the deadline stay concrete rather than aspirational.
Putting more than the minimum down changes the insurance math more than most buyers expect. Crossing the 5% threshold drops the annual rate from 0.55% to 0.50% on a 30-year loan, and reaching 10% unlocks cancellation after 11 years instead of never. Extra cash toward the balance at closing beats extra cash toward a larger home almost every time when the budget is tight.
FHA Loan Limits You Should Know
FHA sets a maximum loan amount for each county, calculated from local median home prices. Low-cost counties get the floor and expensive markets get the ceiling, with everything in between following local medians at or below 115% of area income. For 2025, the floor for a one-unit property was $524,225 and the ceiling reached $1,209,750, and HUD resets these figures every January, so verify the current number for your county rather than relying on a figure you saw last year.
Limits rise for multi-unit properties because the income potential rises with them. A four-unit building carries a ceiling hundreds of thousands of dollars higher than a single-family home, which matters for house hackers buying a duplex or triplex with an FHA loan and renting out the units they do not occupy. The self-sufficiency test requires the rental income to cover the mortgage in some configurations, so talk to an FHA-experienced lender about that wrinkle early.
If your target home costs more than the county limit, FHA simply is not available for that purchase, and you move into conforming or jumbo territory with stricter credit and down payment expectations. Buyers in high-cost metros sometimes discover this mid-search, which is why checking the limit before touring homes above it saves real disappointment. Your lender can pull the limit for any property address in seconds.
Debt to Income Requirements for Approval
FHA underwriting traditionally capped the housing ratio at 31% of gross monthly income and the total debt ratio at 43%. Automated underwriting routinely approves files with total ratios approaching 50% when the file has compensating factors like residual income, solid credit history, or a large down payment. That flexibility is a genuine advantage over conventional lending, where ratios above 45% get difficult without exceptional strength elsewhere in the file.
The ratio counts every recurring obligation that shows on your credit report: car payments, student loans, minimum credit card payments, child support, and the new housing payment including taxes, insurance, and MIP. Student loans deserve special attention because FHA uses 0.5% of the loan balance as the monthly payment when your servicer reports $0, which can add hundreds of dollars of counted debt on large balances. Run your own numbers with a debt to income ratio check before you apply so nothing on the report surprises you.
Paying down a car loan or credit card a few months before applying can swing the approval, and the order matters. Closing a card shrinks your available credit and can raise your utilization, which hurts the score side of the equation. Keep the accounts open and just attack the balances instead.
FHA Versus Conventional Financing
The honest comparison comes down to credit score and down payment. Conventional loans typically want 620 or above and charge private mortgage insurance below 20% down, but that PMI cancels once you reach 20% equity and disappears entirely at refinancing. FHA charges both the upfront premium and the annual MIP, and the annual piece lasts the full term unless you put 10% down or refinance out. At credit scores above 700 with 10% down, conventional almost always wins on total cost.
Below roughly a 660 score, the picture flips. Conventional pricing adds loan-level adjustments for lower scores that can total several points upfront, while FHA pricing barely moves until you cross 660, and FHA rates themselves tend to sit slightly lower for the same borrower. The premium structure means FHA builds equity more slowly at the start, which an amortization schedule makes painfully visible in the first years of payments.
A practical approach is to price both loans on the same day with the same lender and compare the total monthly payment plus the cash due at closing, then decide. Some buyers take the FHA loan now for the score flexibility and refinance into conventional after a year or two of on-time payments lifts their profile. That two-step plan is common enough that it deserves a place in your thinking from day one.
Refinancing Out of FHA MIP Later
The FHA streamline refinance is the fastest way to lower your rate later without requalifying from scratch. It requires no appraisal, no income documentation, and minimal paperwork, though you need a clean 210-day payment history and the refinance must produce a net tangible benefit, usually a rate at least 0.5% lower. The streamline keeps you in the FHA program, so the upfront MIP gets charged again, though at a reduced 1.75% for most loans and 0.01% if you refinance within three years of the original upfront charge.
The bigger exit is refinancing into a conventional loan once you hit 20% equity, because conventional loans carry no mortgage insurance at that level. Equity can arrive through paying down the balance, price appreciation, or both, and the 2020 to 2024 appreciation wave pushed millions of FHA borrowers over the line years early. A cash out refinance is the variant to consider when you need equity for renovations or debt payoff instead, capped at 80% loan to value on conventional terms.
Timing the switch means watching two numbers: your estimated home value and your current balance. Check comparable sales in your neighborhood every few months once you own, since a lender-ordered appraisal will lean on those same comps. When the ratio hits 80%, the refinance math usually pencils out within a year or two of reaching the threshold.
Planning the Full Cost of Your Purchase
The down payment is only the visible part of your cash requirement. Closing costs run 2% to 6% of the purchase price and include the lender's origination fee, the appraisal, title insurance, recording fees, and prepaid escrow for taxes and insurance. Your earnest money deposit counts toward the total cash due, so a larger deposit at contract time means less wired at the closing table rather than more money overall.
Your credit profile deserves attention months before you apply, not the week of. Paying balances down below 30% of their limits moves your credit utilization ratio in the right direction, and even a 20-point score improvement changes the pricing tier you are offered. Pull your reports at annualcreditreport.com, dispute errors in writing, and avoid opening any new accounts between application and closing because new debt can void an approval.
Finally, keep the total payment under the budget you actually live on rather than the maximum the lender approves. Lenders approve on gross income and ignore your childcare, groceries, and travel habits, which is why payment shock trips up first-year homeowners more than any underwriting rule ever has. A conservative target keeps the house a place you enjoy instead of a bill you dread, and you can always raise the budget later when income grows.