How Much Extra Down Payment Cuts PMI on a Conventional Loan

The Quick Read: A bigger down payment cuts PMI in steps, not in a smooth line. Each extra dollar shrinks the loan, and it can also move the loan into a lower coverage band. At 80% loan-to-value (LTV) or below, PMI goes away entirely. Between those lines, the savings depend on your credit profile and the insurer’s pricing, so the only reliable number comes from a side-by-side quote.

What Is PMI, and What Sets It?

PMI is private mortgage insurance. It protects the lender, not you, if a conventional loan goes into default. It is required when the loan is above 80% of the home’s value, and it is added to your monthly cost on top of principal, interest, taxes and homeowners insurance.

Two agency rules frame everything else. Fannie Mae’s Selling Guide requires mortgage insurance on a conventional first mortgage with an LTV above 80%. For a purchase, value means the lower of the sales price or the appraised value. That valuation rule trips up buyers. If the home appraises below your contract price, your extra down payment is measured against the lower number.

Across the wholesale programs Lendmire works with, the standard purchase envelope is 97% LTV (3% down) for a first-time buyer on a one-unit primary residence with a fixed rate, and 95% LTV (5% down) otherwise. Everything here sits inside that range, subject to lender guidelines and full file review.

How Is the Loan Underwritten, Step by Step?

Here is the sequence that decides how much PMI you carry. Each step is where extra down payment can change the outcome.

1. The value is fixed. The lender orders an appraisal. LTV is the loan amount divided by the lower of price or appraised value.

2. The LTV lands in a band. The bands run from above 80% to 85%, above 85% to 90%, above 90% to 95%, and above 95% to 97%. Freddie Mac rounds the ratio up to the next whole number, so an LTV just above a whole-number boundary is treated as the next whole percentage.

3. The band sets required coverage. Coverage is the share of the loan the insurer must cover if there is a claim. It depends on the band, the loan term and whether the loan is fixed or adjustable.

4. The insurer prices the policy. The insurer sets the actual premium from its own pricing, using the coverage level, your credit score and other loan features.

5. You choose a payment structure. Borrower-paid PMI is a monthly charge you can later cancel. Lender-paid coverage is generally recovered through the loan’s rate, and it does not work the same way for cancellation.

6. Pricing adjustments stack on top. Fannie Mae’s loan-level pricing grid combines credit score and LTV. A lower LTV generally lowers the adjustment.

Coverage percentage is not your PMI rate. This is the most common misreading. Agencies set how much coverage the insurer carries. The insurer, not the agency, sets what you pay for it.

Where Do the Big Drops Happen?

The biggest drops come at the thresholds. Freddie Mac’s guide sets standard coverage by band. For a fixed-rate loan longer than 20 years, required coverage runs 12% in the lowest band above 80%, 25% above 85%, 30% above 90%, and 35% above 95%.

Read the table as a staircase. Moving from 95% LTV to 90% LTV drops you into a lower coverage tier, which generally lets the insurer price the policy lower. Moving from 85% to 80% removes the requirement altogether.

Premium size is where honesty matters. Published typical annual premiums across the market run from roughly 0.58% to 1.86% of the loan balance. That is a range, not a quote. Where you fall depends mostly on credit score and LTV together. Two borrowers with the same down payment can pay very different amounts.

So what does a small top-up buy? It depends on where you sit relative to a band line. A borrower just above a band line, at 90.5% LTV, who adds a modest amount to reach 90.00% moves down a tier. A borrower in the middle of a band who adds the same amount shrinks the loan a little and gets only a small change. The cash is identical. The payoff is not. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.

Does the 20% Cliff Really Matter?

Yes, but the test is not “20% of the price.” The test is LTV of 80% or below against the lower of price or appraised value. If the appraisal comes in short, you need more down payment than 20% of the contract price to clear the line. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.

Stopping a little short of the cliff can still make sense. A borrower at 82% LTV pays for a thin sliver of coverage on a smaller loan, and the added cash may be better kept as reserves. A borrower at 80.5% is a different case. The final stretch costs little and removes the monthly charge.

That is the practical rule. The closer you are to a line, the more each extra dollar is worth. The farther inside a band, the less it does.

What Edge Cases Change the Rule?

The general rule bends in several named places.

• Special programs. HomeReady and Home Possible require less coverage in the upper bands, for example 25% instead of 30% to 35% above 90% LTV. They carry an income limit of 80% of area median income, so confirm eligibility before assuming them.
• Minimum or custom coverage. Lower coverage options exist, but Fannie Mae’s minimum coverage carries an extra pricing adjustment. Lower coverage is not free.
• Occupancy and unit count. On a primary residence, one-unit purchases go to 95% LTV on standard programs, and two- to four-unit primary homes also reach 95% in the wholesale programs. Second homes top out at 90%. A rental or second home is a different lane, and occupancy decides the leverage.
• Financed mortgage insurance. If mortgage insurance is financed into the loan, it raises the loan amount and the gross LTV, so extra down payment helps twice.
• Appraisal below price. Covered above. You pay the gap or renegotiate.
• Lender-paid coverage. The cost typically moves into the interest rate, and the cancellation rights below do not apply the same way.

Credit also moves the answer. The wholesale conventional programs start at a 620 decision score, and the automated finding governs most files, with a total ratio ceiling of 50%. A borrower near that floor may find credit moves the premium more than down payment does. Improving a score and adding down payment are separate levers, and the better one depends on the file.

Can I Cancel PMI Later Instead of Paying More Now?

Often, yes. Borrower-paid PMI is not permanent. This is the second lever, and it works after closing.

Under the Homeowners Protection Act, as the CFPB explains, you can ask to cancel once your balance reaches 80% of the home’s original value. The servicer must grant it if you meet these tests: a written request, a good payment history, no junior liens, and no decline in value below the original. The servicer must terminate PMI automatically when the balance is scheduled to reach 78%, provided you are current. Final termination also comes the month after the midpoint of the loan’s schedule.

Hitting 80% does not cancel anything on its own. You have to ask. Auto-termination waits for 78%.

Extra principal payments after closing can speed this up. Appreciation can also help, but Fannie Mae’s servicing rules set stricter tests for current-value cancellation. On a one-unit principal residence, you generally need LTV of 75% or less after two to five years, or 80% or less after five years. The servicer also checks that current value is not below original value, and it must not solicit you, so you have to start the request. Two- to four-unit homes and investment properties face tighter thresholds.

Cash Now or Principal Later: What Does the Decision Look Like?

Picture two buyers with the same price and the same extra cash. The first puts it down at closing. The second keeps it and sends it toward principal over time.

The first buyer shrinks the loan on day one and may drop a tier immediately. The second keeps liquidity but pays PMI until the balance reaches the cancellation point. If the second buyer sits just above a band line, the up-front route probably wins. If the second buyer is far from any line, liquidity may be worth more than the modest premium change.

A few questions settle it in practice:

• How close are you to a line? Within a point or two of 90% or 80%, extra cash does outsized work.
• How strong is your credit? A high score keeps premiums low, so the savings from extra cash shrink.
• How thin are your reserves? Draining savings to shave PMI can leave you exposed to the first big repair.
• How long will you stay? A short holding period rarely repays a large extra down payment through PMI savings alone.
• Does it change seller help? Interested-party contribution limits step with LTV. They run 3% above 90% LTV, 6% for 75.01% to 90%, and 9% at 75% or below, so a higher down payment can change how much seller help is allowed. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

The break-even is simple to run. Divide the extra cash by the monthly PMI savings it produces. The result is the number of months before the extra down payment pays for itself. Ask for that savings figure from a real quote, not an estimate.

How Do I Get It Quoted?

Ask for PMI quotes at several down payment levels, side by side, on the same loan. Include one just below a band line and one just above. A broker can request these across wholesale lenders, and the Loan Estimate shows the cost for each version.

Also confirm that extra principal payments are applied to principal and that there is no prepayment penalty. Ask what documentation the servicer wants when you request cancellation. The first date you can request it should appear on the PMI disclosure form you receive with the loan.

If you are buying a home and want to see whether a conventional loan fits your file, Lendmire can help you compare the options and what each one asks of the file. The team arranges conventional loan programs through wholesale lenders in 16 states.

Key Terms Defined

LTV (loan-to-value): The loan amount divided by the lower of price or appraised value on a purchase.

PMI (private mortgage insurance): Insurance on a conventional loan above 80% LTV that protects the lender, not the borrower. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

Coverage percentage: The share of the loan the insurer covers in a claim, set by agency tables, which is not your premium rate.

LLPA (loan-level price adjustment): A pricing add-on built from credit score and LTV that can rise or fall with your down payment.

Borrower-paid versus lender-paid PMI: Borrower-paid is a monthly charge you can cancel; lender-paid is generally recovered through the rate.

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. Fannie Mae Selling Guide B7-1-01

2. Freddie Mac Guide §4203.1

3. Freddie Mac Single-Family Seller/Servicer Guide §4701.1

4. Fannie Mae Selling Guide B7-1-02

5. CFPB: When can I remove PMI from my loan?

6. Fannie Mae Servicing Guide B-8.1-04