Should you pay down your mortgage to remove PMI?
Most PMI advice tells you how to remove it. This tells you whether paying down your mortgage to remove it early is actually worth the money — including when the honest answer is "just wait."
Original home value means the purchase price or appraised value when you bought — not today's value. PMI thresholds are set against that original figure, which is the detail most people get wrong.
Why "kill PMI as fast as possible" is often wrong
The common advice is to eliminate PMI at the first opportunity. But paying a lump sum toward principal to get there is an investment decision, and it deserves the same scrutiny as any other.
Consider a real example: a homeowner with a $527,893 balance at 5.25%, paying $70/month in PMI. Reaching 80% of original value would take a lump sum of about $58,655. That eliminates $840/year in PMI — a return of just 1.43% on the money, from the PMI alone. Even adding the 5.25% mortgage interest avoided, the blended return is around 6.7%, which is roughly a coin flip against investing it instead.
Now change the numbers: a homeowner needing only $2,000 to cross the threshold while paying $180/month in PMI sees a return over 100%. Same decision, wildly different answer. That's why a calculator beats a rule of thumb here.
The three ways PMI ends — and which comes first
At 80% of original value
You have the right to request cancellation in writing once your balance hits 80% of the home's original value. Servicers must grant it if you're current, have no junior liens, and the home hasn't declined in value.
At 78% of original value
Your servicer must cancel PMI automatically when your scheduled balance reaches 78% — no request needed, as long as you're current on payments.
At the loan midpoint
Often overlooked: PMI must end the month after the halfway point of your original term (year 15 of a 30-year loan), even if your balance hasn't reached 78%.
FHA and VA are different
These rules apply to conventional loans. FHA mortgage insurance often runs for the life of the loan, and VA loans have no monthly mortgage insurance at all.
Source: Consumer Financial Protection Bureau. Rules apply to single-family principal residences with mortgages closed on or after July 29, 1999.
The detail that trips almost everyone up
PMI thresholds are measured against your home's original value — the purchase price or appraisal at closing, whichever was lower — not what it's worth today. If your home has appreciated significantly, your balance may already be well under 80% of current value while still being above 80% of the original figure.
That doesn't mean appreciation is useless. Many servicers and investors (including Fannie Mae and Freddie Mac) have their own guidelines allowing cancellation based on a new appraisal showing increased value. Those rules can't be less favorable than the federal minimums, and they're worth asking your servicer about directly — particularly if you've owned for several years in a rising market.
Things this calculator deliberately doesn't assume
- That you should always pay it down. When the return is below your alternative, it says so.
- That your money has no other use. The comparison return is an input, so you can set it to whatever's realistic — an index fund, high-interest debt you could pay off instead, or a savings account.
- That a lump sum lowers your payment. It doesn't, by itself. Paying extra principal shortens your loan but leaves the monthly payment unchanged unless you also request a recast, which typically costs around $250 and isn't available on all loans.
- That liquidity doesn't matter. Money paid into your mortgage is difficult to get back out. If it would leave your emergency fund thin, that's a real cost the percentage return doesn't capture.
The four questions most borrowers never think to ask
Published guidelines are not the rules you’re judged by. Your lender’s own credit policy is, and nobody publishes it. Get the question sheet:
- What to ask about DTI, with the number in it, so you get a number back
- How to find out whether a rule is the agency’s or the lender’s
- What a “no” actually means, and when to take the same file elsewhere
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Frequently asked questions
When can I request PMI cancellation?
Under the Homeowners Protection Act you may request cancellation once the loan balance reaches 80% of the property's original value, provided you are current on payments and have no second lien. Servicers commonly also require a satisfactory payment history and may require a broker price opinion or appraisal at your expense to confirm the value has not declined. Requesting on a value increase rather than a balance reduction is a separate, servicer-specific path with its own seasoning rules.
When does PMI cancel automatically?
Automatic termination is required at 78% of the original value based on the loan's original amortization schedule, regardless of extra payments you have made. That distinction matters: paying ahead moves your actual balance down faster but does not move the automatic termination date, which is why the request at 80% exists as a separate step you have to initiate.
Is paying a lump sum to remove PMI worth it?
It depends on how the return compares to what the money would earn elsewhere, and on what removing it does to your liquidity. The calculator above frames it as a return on the cash required. Two things it cannot see: whether your servicer will require a new appraisal, and whether draining the cash leaves your reserves too thin. Money paid into a mortgage is difficult to get back out.