Conventional

Conventional Loan Down Payment Options: 3% vs 20% and When PMI Makes Sense

A conventional loan down payment runs from 3% at the low end to 20% or more at the point private mortgage insurance drops away entirely. Between those two numbers sits a real financial tradeoff: pay monthly for insurance now and get into a home sooner, or hold off and buy without it later.

Picking a conventional loan down payment is less about finding the "correct" percentage than about running the math on a specific scenario. Credit score, how long a buyer expects to stay in the home, and what the saved cash would otherwise do all change the answer. This article walks through the programs, the PMI pricing bands, and the break-even logic deciding which side of the 3%-to-20% range fits.

How much down payment does a conventional loan require?

The floor is 3%, available through Fannie Mae's Conventional 97 program and the income-restricted HomeReady and Home Possible options. Above 3%, lenders price in 5%, 10% and 15% tiers before mortgage insurance disappears completely at 20%.

Every down payment level below 20% carries private mortgage insurance, priced as a percentage of the loan added to the monthly payment. The percentage drops as the down payment rises, so moving from 3% to 10% down lowers the PMI rate even though insurance stays in place until equity crosses the 20% threshold.

Second homes and investment properties don't get the 3% floor. Lenders commonly push second-home minimums to 10% or higher, and investment-property purchases often start at 15% to 25% given the added risk a non-owner-occupied loan represents. None of this changes with credit score, since occupancy type is underwritten as its own risk category separate from borrower qualification. Conventional loans explained covers the full rundown of rates, limits and credit requirements behind these numbers.

What's the real difference between Conventional 97, HomeReady and Home Possible?

Conventional 97 has no income cap but requires at least one borrower on the loan to be a first-time buyer. HomeReady and Home Possible drop the first-time-buyer requirement but cap household income at 80% of the area median income for the property's location.

This income limit varies by county and metro area rather than applying a flat national number. Fannie Mae and Freddie Mac refresh the area median income figures annually, with 2026 limits taking effect in mid-2026, so a buyer near the cap should confirm the current figure for the specific property address rather than relying on a prior year's number.

The tradeoff runs in both directions. A repeat buyer above the income cap has Conventional 97 as the only 3%-down path, while a first-time buyer under the income cap often finds HomeReady or Home Possible priced with lower mortgage insurance in exchange for the income restriction. A loan officer comparing all three side by side for a specific income and purchase price catches this faster than reading program guidelines in isolation.

How much does PMI cost at different down payment levels?

Private mortgage insurance on a conventional loan runs roughly 0.2% to 1.9% of the loan amount annually, with the exact rate set by credit score and loan-to-value together rather than down payment alone. A borrower with a 760+ credit score and 15% down prices toward the bottom of this range, while a 620-639 score at 3% down prices toward the top.

Two variables move together in the same pricing grid: a stronger credit score lowers the rate at every down payment level, and a bigger down payment lowers it further within the same credit tier. This is why two buyers putting the identical amount down sometimes carry meaningfully different PMI costs, driven entirely by the 60 to 80 points separating their credit scores.

[COMPLIANCE FLAG: confirm current private mortgage insurer rate cards (by credit band and LTV) against active investor guidelines before publishing, since PMI pricing is set by mortgage insurers and adjusts independent of Fannie Mae/Freddie Mac loan-level pricing.]

The mortgage calculator on this site models a specific loan amount, credit profile and down payment to show what the insurance line adds to a monthly payment, a more useful exercise than comparing published rate ranges in the abstract.

When does 3% down make more sense than waiting for 20%?

Putting 3% down and carrying PMI makes sense when the alternative is years of saving while home prices and rates move independent of the wait. Entering the market sooner locks in today's price on the property rather than a future, unknown one.

PMI is temporary by law. CFPB rules under the Homeowners Protection Act require automatic cancellation once the loan balance reaches 78% of the home's original value, with the right to request cancellation earlier at 80%. A buyer putting 3% down isn't committing to insurance for the life of the loan, only until the amortization schedule (or extra principal payments) crosses this line.

The other factor is opportunity cost. Cash held back from a 20% down payment doesn't sit idle for most buyers, it goes toward closing costs, reserves, or whatever the alternative use of the money would have been. Weighing a monthly insurance cost against what 17 extra percentage points of cash would otherwise do is a borrower-specific calculation, not a universal rule, and it's worth running with a loan officer rather than assuming more down payment always wins.

When does 20% down make more sense?

Twenty percent down removes PMI from day one and lowers the monthly obligation immediately rather than waiting for the loan balance to fall. For a buyer who already has the cash sitting in a low-yield account with no better use, skipping the insurance cost entirely is the simpler path.

A larger down payment also strengthens an offer in a competitive bidding situation, since it signals financing certainty to a seller comparing multiple contracts. In a market where a seller has options, a 20%-down conventional offer tends to read as lower-risk than a 3%-down one, even when both are equally well-qualified from a lender's perspective.

Longer time horizons shift the math toward 20% as well. A buyer planning to stay in a home for a decade or more pays PMI for a meaningfully longer stretch at 3% down than a buyer who expects to refinance or sell within a few years, so the total insurance cost over the holding period deserves more weight the longer this horizon runs.

How does PMI go away once the loan is in place?

PMI cancellation follows the Homeowners Protection Act's two thresholds: automatic termination at 78% of the original home value, and borrower-requested cancellation at 80%, both tracked against the original amortization schedule rather than market value. A borrower current on payments at either milestone doesn't need to take action for the automatic cancellation, though requesting it early at 80% requires a written request to the servicer.

Some lenders also allow cancellation based on a new appraisal showing the home has appreciated to 80% loan-to-value, ahead of where the original amortization schedule would place it, though this path typically requires the loan to have seasoned for a minimum period and carries its own documentation and appraisal cost. Policies differ by servicer, so a borrower counting on early appreciation-based removal should confirm the specific requirements in writing rather than assuming a standard timeline applies.

Refinancing resets the "original value" calculation to the appraised value at the time of the new loan, which matters for a borrower who refinances before reaching 20% equity on the original purchase price. Conventional loan qualification requirements covers how underwriting treats equity and loan-to-value on both purchase and refinance transactions in more depth than fits here.

Are there ways to lower or avoid PMI without 20% down?

Lender-paid mortgage insurance folds the PMI cost into a marginally different note rate instead of a separate monthly line, which reads cleaner on a payment statement but gives up the ability to cancel the cost once equity builds, since it's baked into the rate for the life of the loan rather than removable at 78% or 80%. Whether this tradeoff is worth it depends on how long the loan is expected to stay in place.

A piggyback structure, commonly an 80-10-10, pairs an 80% first mortgage with a 10% second lien and a 10% down payment to avoid PMI on the first loan entirely. The second lien carries its own rate and payment, so the total monthly cost needs a direct comparison against standard PMI rather than assuming avoiding insurance automatically saves money.

Credit score improvement before locking a rate moves a borrower into a lower PMI pricing tier without changing the down payment at all. Since mortgage insurance pricing and loan pricing both reference the same credit bands, a borrower a few months from a significant score improvement sometimes benefits more from waiting than from assembling a bigger down payment on the current timeline. How credit score affects pricing across loan types breaks down where those pricing tiers fall.

Deciding among these options works best with a direct comparison run against the actual numbers on a specific property rather than general guidance. More on Wise Capital Mortgage and the licensing behind the brokerage is available for buyers comparing who originates a loan this size.

Frequently asked questions

What's the minimum down payment on a conventional loan? 3%, available through Fannie Mae's Conventional 97 program for a first-time buyer, or through the income-restricted HomeReady and Home Possible programs regardless of first-time buyer status.

Do I have to pay PMI if I put down less than 20%? Yes, on a standard conventional loan. PMI is priced by credit score and loan-to-value, and it cancels automatically at 78% of the original home value under federal law, with the option to request cancellation earlier at 80%.

Is a bigger down payment always better on a conventional loan? No single answer fits every borrower. A bigger down payment removes PMI sooner and strengthens an offer, but it also ties up cash with a better use elsewhere for some buyers, depending on individual financial priorities and how long the home will be held.

Is it possible to remove PMI before reaching 20% equity through normal payments? Some lenders allow cancellation based on a new appraisal showing 80% loan-to-value ahead of the standard schedule, though this path usually requires the loan to season for a minimum period and carries appraisal costs. Policies differ by servicer.

What's the difference between HomeReady, Home Possible and Conventional 97? Conventional 97 has no income limit but requires a first-time buyer on the loan. HomeReady (Fannie Mae) and Home Possible (Freddie Mac) drop the first-time-buyer requirement but cap household income at 80% of the area median income for the property's location.

Does a 20% down payment change my interest rate? Down payment size affects loan-level pricing adjustments alongside credit score and loan-to-value, and those adjustments move the rate. The mortgage calculator on this site models payment scenarios directly rather than relying on a single published rate.

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Educational content, not a commitment to lend or an offer of credit. Program parameters vary by lender and change over time. Figures are illustrative and current as of the article’s publish date; confirm current terms before relying on them.