Picture a $350,000 house in a mid-size city. Buyer A puts 3.5% down with an FHA loan. Buyer B puts 3% down with a conventional loan. Nearly identical cash at closing, same house, same seller. Five years later, Buyer A is still paying mortgage insurance every month and Buyer B stopped eighteen months ago.
That gap is the conventional loan vs FHA loan conversation in miniature. Neither program is universally cheaper. Each one prices your credit score, your down payment, and the property itself differently, and the winner flips depending on the file sitting in front of the lender.
What Actually Separates the Two Programs
An FHA loan is insured by the Federal Housing Administration. That insurance protects the lender if you default, which is why FHA lenders can be flexible about credit and down payment. A conventional loan carries no government guarantee. It’s either sold to Fannie Mae or Freddie Mac (conforming) or held on a lender’s or investor’s books (non-conforming).
Both are usually 15- or 30-year fixed mortgages. The differences hide in the fine print: credit floors, mortgage insurance rules, property standards, and loan size ceilings.
Credit Scores and Down Payments Diverge Fast
FHA publishes a 580 score floor for its 3.5% down program. Between 500 and 579 you can still get an FHA loan, but the down payment requirement jumps to 10%. Individual lenders can layer stricter rules on top, and plenty do.
Conventional loans typically start at 620. First-time buyers can put down as little as 3% through Fannie Mae’s HomeReady or Freddie Mac’s Home Possible programs, with income limits in some areas, and 5% is the common low-down option. If you want the break-even points score by score, FHA vs conventional loan: which is better for your down payment and credit score lays them out.
The practical read: below roughly 680, FHA’s flexibility usually matters more than its insurance costs. Above 720, conventional pricing pulls ahead and keeps going.
Mortgage Insurance Is Where the Real Money Hides
This is the section most comparisons gloss over.
FHA charges an upfront mortgage insurance premium of 1.75% of the loan amount. On a $337,750 base loan, that’s $5,910, usually rolled into the balance rather than paid in cash. Then comes an annual premium, commonly 0.55% of the balance, split across twelve payments.
The sting is duration. Put less than 10% down and that annual premium stays for the life of the loan. Refinancing is the only exit. Put 10% or more down and it drops off after eleven years.
Conventional mortgage insurance behaves completely differently. It’s charged monthly until your balance reaches 80% of the home’s original value, at which point you can request removal. It terminates automatically at 78%. On a 30-year loan with steady appreciation, that’s often year five to eight. Conventional mortgage PMI: what it really costs and how to kill it early breaks down the cancellation math, including the appraisal strategy that gets it removed sooner.
Skipping past the insurance math is the most common way buyers pick the wrong loan. FHA loan vs conventional loan: where the money actually goes traces a full amortization schedule for both programs side by side if you want the lifetime totals.
The Interest Rate Isn’t the Whole Story
FHA rates are frequently quoted a notch below conventional rates on the same day. That’s real, but it isn’t the finish line. Conventional pricing is risk-based: lenders apply loan-level price adjustments that get heavier as credit scores drop and down payments shrink. At a 640 score with 5% down, those adjustments can add well over two points in fees, which surfaces either as a higher rate or as cash at closing.
At 760 with 20% down, the same adjustments are close to zero and conventional wins on rate and insurance together. Compare the annual percentage rate on identical loan amounts, not the headline note rate.
The Loan Limit Cliff Nobody Mentions Until Week Three
Conventional loans must fit under the conforming limit, which is $806,500 for a single-family home in most of the country in 2025. High-cost counties run higher, capping out around $1,209,750. Cross that number and you’re in jumbo territory, with stricter reserves and bigger down payments.
FHA has its own ceiling, with a floor of $524,225 and the same high-cost cap. In many metros the FHA limit sits below the conventional limit, which quietly rules FHA out for mid-priced homes in expensive markets. Conventional loan limits: what the number is, and what happens when you cross it explains how the county-by-county numbers work and what a jumbo loan actually costs you.
Property Standards Favor Conventional Loans
FHA appraisals enforce minimum property requirements. Peeling exterior paint, a roof near the end of its life, missing handrails on stairs, exposed wiring, or a crawlspace without a vapor barrier can all trigger repair conditions before closing. On a fixer-upper or a rural property with a shared well, that list can kill the deal or cost the seller thousands.
Conventional appraisals focus on value and obvious safety issues. Cosmetic problems rarely stop a conventional loan. Condos are another dividing line: FHA requires the project to sit on its approved list, while conventional financing through Fannie Mae follows broader but specific project rules.
Seller Concessions, Assumability, and Debt-to-Income
FHA allows sellers to credit up to 6% of the purchase price toward your closing costs. Conventional caps concessions at 3% once your loan-to-value climbs above 90%, 6% between 75% and 90%, and 9% below that. If you’re short on cash, the FHA allowance can be worth more than the rate difference.
FHA loans are assumable, meaning a future buyer can take over your mortgage at your rate. In a market where rates climb, that’s a marketing feature worth real money. Most conventional loans are not assumable.
On debt-to-income, FHA’s automated underwriting approves files up to 43% routinely and sometimes past 50% with compensating factors like reserves or a long rental history. Manual underwriting lets FHA accept borrowers without traditional credit scores who can document rent and utilities. Conventional automated approvals typically top out near 45% to 50% and tend to be pickier about cash reserves and layered risk.
How to Compare Both Without Guesswork
- Request a Loan Estimate from each lender on the same day, with the same rate-lock period and the same seller credit.
- Total the mortgage insurance across your realistic holding period. Five to seven years is a common guess, so be honest about yours.
- Check your county’s FHA and conforming limits before you fall in love with a listing.
- Ask what PMI would cost at your actual score, not a generic figure from a rate table.
- Run the numbers at 3.5%, 5%, and 10% down, since the down payment changes the insurance math more than it changes the rate.
- Compare APR and the full monthly payment, including taxes, homeowners insurance, and HOA dues.
If you’d rather see the arithmetic worked out, conventional vs FHA mortgage: which loan actually costs you less runs three borrower profiles through both programs.
Where Each Loan Genuinely Wins
FHA tends to be the better fit when your credit sits between 580 and 680, when your down payment is under 5%, when your debt-to-income ratio lands in the mid-40s, or when you have non-traditional credit history. It also helps when you need a 6% seller concession to cover closing costs.
Conventional usually wins when your score clears 700, when you can put down 5% or more, when you plan to stay long enough to remove PMI, or when the house needs cosmetic work FHA would flag. It’s also the only path for most purchases above the FHA limit.
Get both Loan Estimates in writing before you commit to either. On a $350,000 purchase the difference can land anywhere from a few thousand dollars to more than $40,000 over the life of the loan, and it hinges on details your lender can price in about ten minutes.