Conventional Loan vs FHA Loan for a Low Down Payment: Credit Decides

The Quick Read: Credit usually decides this choice. FHA is built for buyers whose scores or files are thinner, and it allows maximum financing of 96.5% of the value with a 3.5% minimum investment. Conventional loans tend to cost less over time when your credit is strong, mainly because the mortgage insurance can come off. Both are available to buyers who put down far less than 20%.

Let’s referee this fairly, because neither loan is the “smart” one in every case.

The honest answer: FHA is for the buyer whose credit is middling, whose debt load is heavy, or whose file has a wrinkle a computer model dislikes. Conventional is for the buyer whose credit is strong enough that the insurance stays cheap and eventually disappears. In between sits a gray zone where the right answer depends on how long you plan to stay. The goal is to match the loan to the file.

Across the wholesale programs Lendmire places FHA files with, the decision score starts at 580 for maximum financing. The FHA loan programs page covers the program mechanics. This article focuses on the comparison.

Side-by-Side

Here is how the two loans line up on the things that actually change your outcome. FHA figures come from the parameters Lendmire’s wholesale programs use. All of it is subject to lender guidelines and full file review.

A few of those rows deserve a closer look.

Why Credit Is the Hinge

Credit does two jobs. It decides whether you get approved, and it decides what the loan costs you each month.

FHA is forgiving about price. The annual premium depends on the loan term, the loan amount and the LTV. LTV means loan-to-value: the loan balance divided by the home’s value. Your credit score is not one of those factors, so it does not move the premium. A buyer at 600 and a buyer at 740 pay the same FHA insurance structure for the same loan.

Conventional is sensitive to credit. Private mortgage insurance, or PMI, is priced on your score and your LTV together. A strong score can make PMI modest. A weak score can make it expensive enough that FHA wins on monthly cost. That is the whole “credit decides” idea in one sentence.

Two details matter on the FHA side:

• The deciding score. HUD’s FHA answer page on minimum credit scores explains that with several borrowers, the lender finds each person’s score and uses the lowest one for the whole loan. A co-borrower with weak credit can pull the loan down a tier.
• HUD’s floor versus the network’s floor. HUD itself allows FHA financing down to a 500 score, with a larger down payment. The wholesale programs Lendmire works with start at 580. A buyer in the 500s will find that HUD allows more than most lenders offer.

Fannie Mae has also changed how conventional approvals work. Its Desktop Underwriting system no longer applies a fixed 620 minimum, per Fannie Mae’s notice SEL-2025-09. The system weighs overall risk instead. So “conventional means 620 or nothing” is outdated for automated approvals. Credit still drives eligibility, insurance and pricing, and lender overlays (a lender’s own stricter rules) still apply.

Is a new scoring model coming that changes any of this? No. HUD’s Mortgagee Letter 2026-11 adds newer score models for later case numbers but leaves the minimum thresholds unchanged. It also keeps the three-bureau credit report. You cannot shop for a more flattering score.

When FHA Is the Better Fit

FHA tends to win when the file has friction. Here are the patterns.

Your score is in the lower-to-middle range. Because FHA insurance isn’t priced by credit, the cost stays predictable while conventional PMI can climb. If your score sits near the 580 line, FHA may be the only realistic path.

Your debt load is heavy. The base FHA ratios are 31/43, meaning housing costs of 31% of income and total debts of 43%. Documented compensating factors, such as reserves or a strong payment history, can stretch that as high as 40/50 at the top tier. The automated finding governs most files. Conventional has flexibility too, but FHA is built to look at heavier ratios.

Someone else is helping. A non-occupant co-borrower, such as a parent who will not live in the home, is allowed on FHA. HUD notes that if only that person has a credit score, the lender must underwrite the file manually. Manual means a human reads everything. It works, but it asks more of the file.

You have recent credit trouble. HUD sets waiting periods after major credit events: two years from a Chapter 7 discharge and three years from a foreclosure. Those are HUD’s rules, not a promise from any lender. They are often shorter than what conventional guidelines expect.

You need seller help. FHA allows seller or interested-party contributions up to 6% of the price. That can help cover closing costs when cash is tight.

You have thin credit. Borrowers with little or no traditional credit history can still get maximum financing on FHA, but the file is manually underwritten. Expect to document things like rent history.

Picture a buyer with a score a bit above 600, steady income, and a couple of high credit-card balances. Conventional PMI on that profile can be costly, and the approval may be borderline. FHA fits that profile better because the program was designed around it.

Here is the catch, though. FHA has a long memory on insurance. On a thirty-year loan above 90% LTV, the annual premium lasts for the full term. At or below 90% LTV, it ends after eleven years. Many FHA buyers plan to refinance later. The FHA Streamline refinance works on an existing FHA loan with no appraisal and a limited credit review, but it requires a net tangible benefit, and the premium continues. A move into a conventional loan, once credit and equity improve, is the usual exit. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

The upfront premium is 1.75% of the base loan and is typically financed into the balance. That adds to what you owe from day one. The annual premium ranges from 0.15% to 0.75% of the balance depending on term, amount and LTV. These are program facts, not a price quote.

When Conventional Is the Better Fit

Conventional wins when your credit does the work for you.

Your score is strong. Strong credit lowers PMI pricing, and that is where conventional pulls ahead. The CFPB’s overview of conventional loans says they typically cost less than FHA loans but can be harder to get. Credit is most of the reason for both halves of that sentence.

You want the insurance to end. This is the biggest structural difference. Under the CFPB’s PMI removal guidance, you can ask to cancel PMI when your balance reaches 80% of the home’s original value. You need to be current on payments, have no junior liens, and the value cannot have dropped. The servicer generally must end it automatically at 78%. FHA has no equivalent equity-based cancellation. Its duration is tied to your starting LTV.

You plan to stay a long time. A higher upfront cost or a slightly pricier start can pay off when the insurance disappears. If you will own the home for a decade or more, conventional often comes out ahead for a strong-credit buyer.

Your income is moderate to high. Some conventional low-down options cap income. FHA has no income cap. That is a trade-off for higher earners, but a buyer above the cap simply uses a different conventional program.

Your file is clean. Steady traditional employment income, modest debts and a score in good shape let the automated review do its job. The loan is simple and the insurance is cheap.

Picture a buyer with a high score, low debts and 5% to put down. PMI priced to that profile is modest, and it can be cancelled once the balance falls to 80% of the original value. FHA would add an upfront premium and keep the annual premium for most of the loan. Conventional is the clear pick here.

One note on occupancy. Both loans are aimed at a home you live in. FHA requires owner-occupancy for one to four units. If you are buying something you won’t live in, occupancy changes the leverage and the loan type altogether.

Key Terms Defined

LTV (loan-to-value): the loan amount divided by the home’s value, shown as a percentage. Lower LTV means more of your own money in the deal.

Mortgage insurance: coverage that protects the lender, not you, if the loan goes bad. It lets lenders approve smaller down payments.

PMI (private mortgage insurance): the mortgage insurance on conventional loans. Credit and LTV set its cost, and it can be removed.

MIP (mortgage insurance premium): the FHA version, with an upfront piece and an annual piece.

Decision score: the single credit score the lender uses to qualify the loan. With three scores, FHA uses the middle one. With two, it uses the lower.

Overlay: a lender rule stricter than the program’s own minimum.

If You’re Near the Line

Many buyers land in the gray zone. A few honest options:

1. Wait and improve. Paying down card balances before the lender pulls your credit can raise a score. A few months of work may move you into cheaper PMI territory.

2. Take FHA now, refinance later. Rates, prices and your credit may all change. FHA gets you into the home. A later conventional refinance can drop the insurance once your equity and score allow.

3. Compare the full cost over your timeline. Do not just compare the monthly payment. Ask how long you expect to stay, and when each loan’s insurance ends. A cheaper first year can cost more over ten years.

Here is a genuine toss-up: a buyer with a score in the mid-600s, 3.5% to 5% down and a plan to stay about seven years. FHA might cost less at the start, while conventional might cost less in the long run. Neither answer is wrong. Running both side by side on a Loan Estimate is the only way to see which one wins for that file. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

A Quick Decision Checklist

Work through these in order:

• Credit first. Below the lower 600s or with recent credit events, FHA is likely the practical choice. Strong credit points toward conventional.
• Down payment second. Both allow a small one. Compare how each loan treats yours.
• Debt-to-income third. Heavy debts favor FHA’s wider ratios.
• Time horizon fourth. Staying many years favors the loan whose insurance can end.
• Help from others. A non-occupant co-borrower or seller contribution can tip toward FHA.

Next Step

If you are buying a home and want to see whether an FHA loan fits your file, Lendmire can help you compare the options and what each one asks of the file. Program terms are subject to lender guidelines and full file review, and nothing here is a commitment to lend.

Credit sets the starting line, but your timeline decides who wins the race.

For your own numbers, request a scenario review with Lendmire.

About Lendmire

Lendmire, NMLS# 2371349, is a mortgage brokerage with consumer lending licenses in 16 states. FHA, VA, conventional and jumbo purchase and refinance loans are arranged through wholesale lending partners, and each application is reviewed individually by the lender. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. HUD FHA Answers: minimum credit score

2. Fannie Mae SEL-2025-09

3. HUD Mortgagee Letter 2026-11

4. CFPB: Conventional loans

5. CFPB’s PMI removal guidance