Conventional Loan Requirements 2026: Credit, DTI, Down Payment

Conventional loans are the default mortgage in America, which is exactly why their requirements matter to almost everyone buying a home in 2026. About six in ten purchase loans in a normal year are conventional, and the requirements are a mix of hard rules and lender flexibility that most buyers don't fully understand until they're mid-application.

The short version: you need a 620 credit score, you can put as little as 3% down through Fannie Mae's HomeReady and Freddie Mac's HomePossible programs, your debts can't exceed about 43% of your income, and if you put down less than 20%, you'll carry private mortgage insurance until your equity hits 20%.

Every one of those sentences has exceptions, and the exceptions are where buyers save money or get denied. Here's the full 2026 picture, with the numbers that matter.

The 2026 Conventional Loan Landscape

Conventional loans split into three buckets, and the requirements differ across them:

• Conforming: Up to $766,550 for a single-family home in 2026, eligible for sale to Fannie Mae and Freddie Mac. This is where almost everyone lands.
• High-balance conforming: Loans above $766,550 and up to $1,149,825, but only in high-cost counties designated by FHFA. Same programs, slightly tighter pricing.
• Jumbo: Anything above the ceiling. No Fannie or Freddie backing, higher down payment expectations, and stricter credit and reserve requirements.

If you're reading this before you've shopped, assume you're in the conforming bucket and focus on the three numbers that decide your approval: credit score, debt-to-income ratio, and down payment. Those three, plus your assets, are nearly the whole game.

Credit Score Requirements: The 620 Floor and the Rate Ladder

The hard minimum for a conventional loan is 620, and that's both a Fannie and Freddie rule and a lender overlay. Below 620, conventional is off the table and FHA becomes your realistic option. At exactly 620, you qualify, but you'll pay for it.

The rate differences by score band are the part buyers underestimate. Pricing grids in 2026 look roughly like this, on a 30-year fixed with 10% down:

Representative 2026 pricing tiers; actual rates vary by lender, loan size, LTV, and points. Extra interest is the lifetime difference on a $300,000 30-year loan versus the 760+ baseline.

Read that last column carefully. A 640 score versus a 760 score costs about $40,500 in extra interest over 30 years on a $300,000 loan, before PMI even enters the picture. If your score is in the 620 to 660 range, the highest-return financial move you can make this year is usually waiting two to four months to push it past 680, not rushing into a loan at the bottom of the ladder.

What counts toward the score: your three credit bureau files, and lenders use the middle of your three scores, or the lowest of the two if there are only two. Late payments in the last 12 months weigh heaviest. Collections and charge-offs need to be paid or explained. And high credit utilization, above 30% of limits, drags scores down more than most people realize, which is why paying down cards before applying is the single most effective score fix.

Down Payment: 3% Programs and the 20% Myth

The old rule that you need 20% down is the most expensive myth in home buying, and 2026 is no exception. The conforming minimum is 3% for primary residences through two specific programs, and 5% for a standard conforming loan outside those programs.

Fannie Mae HomeReady and Freddie Mac HomePossible both allow 3% down on a primary residence, and both were designed for first-time and low-to-moderate income buyers. They also permit non-borrower household income to count toward qualifying, which can help when a parent or roommate contributes to the household but isn't on the loan. HomeReady even allows down payment funds from grants, gifts, and lenders' community seconds, and the PMI on both programs runs below standard conventional pricing.

The 3% programs have income limits that vary by area, and they're generous enough that most first-time buyers qualify. If your household income clears the local limit, a 3% down loan is usually cheaper overall than an FHA loan with 3.5% down, because conventional PMI cancels while FHA's MIP doesn't.

Here's what each down payment tier buys you in 2026:

Representative borrower-paid PMI factors for 2026 based on standard private mortgage insurer rate cards. Actual premiums vary by insurer, credit score, LTV, and loan size.

Gift funds are allowed for the down payment on all conventional programs, including the full 3% on HomeReady and HomePossible. The donor has to be a relative, domestic partner, or fiancé in most cases, and you need a gift letter plus proof the money actually moved from the donor's account. You can also combine a 3% down payment with a seller credit of up to 3% of the purchase price for closing costs on HomeReady, which is how many first-time buyers close with almost no cash out of pocket beyond earnest money.

Run your down payment scenario through our mortgage calculator and our PMI calculator to see exactly how much the 20% versus 5% decision changes your monthly payment.

Debt-to-Income Ratio: The 43% Ceiling

The conventional DTI standard is 43% on the back-end ratio: your total monthly debt payments, including the new housing payment, divided by gross monthly income. Fannie and Freddie's automated underwriting systems can approve above 43% in specific cases, and this is where the real rules live.

• Up to 45%: Approvable with compensating factors like a 720+ score, six months of reserves, or a larger down payment.
• Up to 50%: Possible in limited cases with strong compensating factors, but rare and lender-dependent.
• Above 50%: Effectively denied for conforming conventional. FHA can stretch further with its own rules.

The front-end ratio, housing payment only, has no hard conventional ceiling in the automated systems, but lenders generally want it under 36%. What counts as debt: credit card minimums, auto and student loans, alimony and child support, and any other installment or revolving obligations. What doesn't count: utilities, phone bills, insurance premiums, and subscriptions.

Here's the 2026 math. Say you earn $8,000 a month gross. At 43%, your total monthly debts can't exceed $3,440. If you have a $450 car payment and $200 in student loans, that leaves $2,790 for the full housing payment. At a 6.625% rate on a $400,000 loan, principal and interest alone run $2,562, so you'd have about $230 left for taxes, insurance, and HOA fees before you blow through the ceiling. That's why the debt-to-income calculator should be your first stop: it tells you which number is binding, the rate or your DTI.

One underappreciated rule: student loans count at their actual monthly payment in the Fannie and Freddie systems, even if they're in forbearance or income-driven repayment, though the systems do consider the documented payment if it's $0 or lower than the standard amortization. If your student loan payment is about to reset, timing your application can matter.

PMI: How Much, and How to Kill It

Private mortgage insurance exists because a lender financing 95% of a home's value wants protection if you default. The borrower pays for it, and in 2026 the cost runs from about 0.3% to 1.5% of the loan balance per year, depending on your credit score and loan-to-value.

On a $300,000 loan with 5% down and a 720 score, expect PMI around $115 to $190 per month. With a 640 score and 3% down, it can exceed $250 per month. That's the hidden cost of a low down payment, and it's why the 20% down benchmark exists, not because lenders require it, but because it eliminates the insurance entirely.

The cancellation rules are the conventional loan's big advantage over FHA:

• 80% loan-to-value: You can request cancellation once your balance falls to 80% of the original value, based on the original appraisal.
• 78% loan-to-value: The lender must drop PMI automatically once you reach 78%, per federal law.
• Mid-course correction: If your home appreciates, a new appraisal can move you across the 80% line years early, and lenders must consider the request.

HomeReady and HomePossible price PMI below standard conventional, sometimes by 20 to 30 basis points, which is worth a few thousand dollars over the years PMI runs. And unlike FHA's MIP, which stays for life when you put down less than 10%, conventional PMI always ends. A buyer who puts 5% down and watches appreciation do its work can often cancel PMI within 3 to 5 years, which is a raise of $150 or so a month with zero effort. Our PMI calculator will show you the exact month your PMI should die.

Conventional vs. FHA in 2026: The Real Comparison

The conventional versus FHA decision is the most common loan-choice question in America, and the answer flips depending on your score and down payment. Here's the head-to-head with 2026 numbers.

2026 benchmarks. FHA rates price about 0.25-0.50% above conventional for the same borrower profile because of MIP risk and servicing costs.

The decision rule in 2026: if your score is 620 or higher and you have 5% down, conventional almost always wins. The math on a $350,000 purchase with 5% down and a 700 score looks like this. Conventional at 6.625%: principal and interest of $2,100 per month, PMI around $125 for roughly 5 years, then gone. FHA at 6.875% with the same 5% down: principal and interest of $2,151, plus the 1.75% upfront MIP financed in, plus MIP of about $155 per month for the life of the loan. Over 7 years, conventional saves roughly $9,000, and the gap widens forever after.

FHA wins in exactly two situations. First, scores between 580 and 619, where conventional is closed. Second, high-cost counties where you need a loan between $766,550 and $1,149,825 but don't have jumbo-level assets, because FHA reaches the ceiling with 3.5% down while conventional stops at the conforming limit. That's why FHA dominates California and New York while conventional dominates the rest of the country.

Assets, Reserves, and Documentation

Beyond the big three numbers, conventional underwriting checks your assets and history. Expect to document two years of W-2s or tax returns, 30 days of pay stubs, and two months of bank statements. The down payment funds need to be seasoned in your account, meaning no sudden unexplained deposits, and the gift rules above apply if someone else is helping.

Reserves are the variable most buyers ignore. Conforming loans generally want two months of PITI in reserves after closing, and many lenders want three to six. On a $3,000 monthly payment, that's $6,000 to $18,000 in cash after closing that you can show on paper. The automated systems treat reserves as a compensating factor, and more reserves can offset a DTI that's a point or two over the standard line.

Self-employed borrowers face a heavier bar: two years of business and personal returns, a year-to-date profit and loss statement, and usually a CPA-prepared income verification. The good news is Fannie and Freddie both use a cash-flow analysis that averages two years of income, which helps borrowers whose businesses had one weak year.

Where Conventional Sits in the 2026 Market

With 30-year rates near 6.6%, conventional loans are the workhorse of the market, and the affordability pressure shows up in the numbers. The median-priced home in most states fits under the conforming limit with room to spare, but buyers in floor-county FHA territory often find conventional is the only option above $500,000, because FHA's floor caps out at $498,257.

If you're deciding between programs, run the full comparison: our affordability calculator for the price range your income supports, our PMI calculator for the insurance cost, and our DTI calculator to confirm you clear the 43% line. The program that looks cheapest in rate quotes isn't always the cheapest once MIP, PMI, and cancellation rules are priced in.

Conventional Loans for Second Homes and Investment Properties

One thing conventional lending does that FHA, VA, and USDA can't: finance homes you don't live in. Second homes and investment properties are conventional-only territory in most cases, and the requirements scale with the risk the lender takes on.

A second home, a vacation property you'll actually use, needs a 10% down payment, a 620+ score, and a debt-to-income ratio that accounts for both your primary mortgage and the new payment. Lenders also want to see that you can carry both payments without rental income, because second homes aren't rented out. The rates run about 0.25% to 0.50% above primary residence pricing.

Investment properties are stricter. The minimum down payment is 15% for a single-unit rental, and 25% for 2 to 4 unit rentals is common. Most lenders want a 660+ score, and some require 680 for the best pricing. The key difference: you can use projected rental income to qualify, but lenders typically apply a 75% rental income haircut, meaning a property renting for $2,000 a month counts as $1,500 of income against your DTI. That's the single most important number to understand before you underwrite a rental purchase, and our debt-to-income calculator will show you how the haircut changes your approval picture.

Reserves are heavier for investment properties too, usually six months of PITI on the new loan. And rates run 0.50% to 1.00% above primary occupancy. It's still usually the best financing available for rentals, because FHA, VA, and USDA all require owner occupancy, which leaves conventional, portfolio lenders, and hard money as the options. Conventional wins on rate and structure almost every time.

One more thing to plan for on any conventional loan: the rate lock. Lenders will quote you a rate with a 30, 45, or 60 day lock, and longer locks cost more, usually 0.125% to 0.375% of the loan amount for the extra 30 days. In a market where rates are drifting down, a float-down option, which lets you take a lower rate if the market improves before closing, can pay for itself on a single quarter-point move. Ask your lender for both numbers before you commit, and remember that a locked rate protects you from the bear case while a float-down captures the bull case. Neither is free, and the right choice depends on how many days you have until closing and how much rate volatility you can tolerate. If you're shopping at current averages near 6.6%, check the latest mortgage rates before you lock so you know what a good quote actually looks like.

Frequently Asked Questions About Conventional Loans

Your Next Step

Conventional lending in 2026 comes down to three numbers you control: your score, your DTI, and your down payment. Pull your credit reports, run your DTI through our calculator, and decide which 3% or 5% program fits your cash position. Then get a preapproval, because the rate and PMI you're quoted depend on your exact profile, not on averages.