Private Mortgage Insurance (PMI)

Private mortgage insurance is insurance against the borrower's nonpayment of or default on an individual mortgage, bought by the lender's requirement and paid for by the borrower, on a conventional loan where the borrower is financing more than 80 percent of the property's value. The federal statute that governs it, the Homeowners Protection Act of 1998, defines the term by exclusion: private mortgage insurance is mortgage insurance "other than mortgage insurance made available under the National Housing Act, title 38, or title V of the Housing Act of 1949" (12 USC 4901(13)). Those three statutes are the FHA, the Department of Veterans Affairs and the Rural Housing Service, which is why the coverage attached to a loan under any of those three programs is a government premium and not private mortgage insurance at all. That definitional line is not a technicality. Every cancellation right described below runs only to the private kind.

The first thing to be clear about is who is insured, because the ordinary reading of "mortgage insurance" gets it backwards. The policy names the lender as the insured party. If the loan defaults and the property sells for less than the balance, the insurer pays the lender under the policy, and the borrower's own obligation is unchanged by that payment. Nothing about the arrangement protects the borrower's equity, credit or housing. What the borrower is buying is the lender's willingness to make a loan at that loan-to-value ratio, which is real value but is not insurance on the borrower's behalf. Mortgage protection life insurance, which pays the balance if the borrower dies, is a different product sold separately, and homeowners insurance, which covers the building, is a third.

The three exits, and the value they are measured against. On a conventional loan secured by the borrower's principal residence, the Homeowners Protection Act provides that the requirement is canceled on written request once the balance reaches 80 percent of the home's original value, that the servicer must terminate it automatically at 78 percent, and that in no case may it be imposed past the month after the midpoint of the amortization period (12 USC 4902(a), (b), (c)). "Original value" means the lesser of the contract sales price or the appraisal at closing (12 USC 4901(12)), so the reference point is fixed on the day the loan closes. Appreciation does not carry a borrower across either line by itself. The request route is also conditional in ways the automatic route is not: the borrower must have a good payment history, must be current, and must satisfy the holder's requirements on evidence that value has not declined below the original value and on the equity being unencumbered by a subordinate lien. That last condition is worth noticing before opening a second mortgage or a home equity line, because a subordinate lien can block a cancellation request that the balance alone would have satisfied.

What the borrower can and cannot change. Extra principal accelerates the 80 percent request, because the cancellation date may be measured on actual payments at the borrower's election (12 USC 4901(2)(A)(ii)). It does nothing for the 78 percent automatic termination, which runs off the initial amortization schedule "irrespective of the outstanding balance for that mortgage on that date" (12 USC 4901(18)(A)). So a borrower who prepays has to ask; the automatic date will not move to meet them. On an adjustable-rate loan both dates run off the amortization schedule then in effect rather than the initial one, so a rate reset that changes the schedule changes them. And if the borrower and the holder agree to modify the loan, all three dates are recalculated to reflect the modified terms (12 USC 4902(d)).

The limitation almost nobody states: the Act reaches principal residences only. Its rights attach to a "residential mortgage", which 12 USC 4901(14) defines as a security interest created with respect to a single-family dwelling that is the principal residence of the mortgagor. A single-family dwelling is defined as a residence of one dwelling unit (12 USC 4901(17)), so a loan on a rental house, a second home, or a building of more than one unit sits outside the statute even where the borrower occupies one of those units, and whatever cancellation the borrower gets there comes from the loan documents or the investor's guidelines rather than from federal law. The Act also reaches only transactions consummated on or after July 29, 1999 (12 USC 4901(15)), which matters for a loan that old.

Lender-paid mortgage insurance is a different product with no cancellation right at all. Where the premium is paid by someone other than the borrower, usually the lender in exchange for a higher interest rate, the statute calls it lender paid mortgage insurance and provides expressly that the cancellation and termination sections "do not apply" (12 USC 4905(a)(2), (b)). By the time it makes a loan commitment the lender has to disclose that the coverage may not be canceled by the borrower, that it usually results in a higher interest rate, and that it "terminates only when the residential mortgage is refinanced, paid off, or otherwise terminated." The consequence is easy to miss when comparing offers: a quote with no monthly insurance line may simply have moved the cost into the rate, where it lasts for the life of the loan instead of ending in the mid-70s of loan-to-value. One protection survives. Within 30 days after the date that would have been the automatic termination date under borrower-paid coverage, the servicer has to notify the borrower that they may wish to review financing options that could eliminate the requirement (12 USC 4905(c)(2)).

The disclosure regime is the part a borrower can actually use. On a fixed-rate loan the lender must hand over, at closing, a written initial amortization schedule and written notice stating the date the borrower may request cancellation, that an earlier request based on actual payments is possible, and the specific date automatic termination arrives (12 USC 4903(a)(1)(A)). Then, every year the coverage is in force, the servicer must send a written statement of the borrower's cancellation and termination rights along with an address and telephone number to use to find out whether cancellation is available (12 USC 4903(a)(3)). Those two dates are therefore not something a borrower has to reconstruct. They were disclosed in writing at closing, and the servicer is obliged to restate the rights annually.

Premiums paid in 2026 and later are deductible again, which reverses the position nearly all published guidance still describes. IRC 163(h)(3)(E) treats premiums for qualified mortgage insurance on acquisition debt secured by a qualified residence as qualified residence interest. That treatment was terminated for amounts paid after 2021 by subparagraph (E)(iv), and Public Law 119-21 section 70108 added IRC 163(h)(3)(F)(i)(III), which provides that clause (iv) "shall not apply", and made the surrounding subparagraph permanent. Section 70108(b) sets the effective date: "The amendments made by this section shall apply to taxable years beginning after December 31, 2025." Three conditions bound it. The deduction sits on Schedule A, so it reaches only a filer who itemizes. It phases out fast and on unindexed thresholds, reduced by 10 percent for each $1,000 or fraction by which adjusted gross income exceeds $100,000, halved to $50,000 for a married filer filing separately, which extinguishes it entirely once adjusted gross income reaches $110,000. And it does not apply to insurance contracts issued before January 1, 2007. Note also that "qualified mortgage insurance" for this purpose is defined more broadly than for the cancellation rules: IRC 163(h)(5)(E) reaches insurance provided by the Department of Veterans Affairs, the FHA and the Rural Housing Service as well as private coverage. So government mortgage insurance is outside the cancellation statute and inside the deduction.

A borrower financing more than 80 percent of a home's value on a conventional loan is quoted mortgage insurance as a condition of the loan. In the usual arrangement the premium is added to the monthly payment. The coverage stays in force until one of the three statutory exits arrives, and then premiums stop: no premium may be required more than 30 days after a valid cancellation request has been satisfied or after the automatic termination date, and any unearned premium must be returned to the borrower within 45 days (12 USC 4902(e), (f)).

Two mechanics decide when that happens in practice.

The dates are arithmetic on the original value, so they are knowable in advance. A hypothetical example. Tomas buys a house for $300,000 with 10 percent down, borrowing $270,000. The original value is $300,000, so automatic termination arrives when the scheduled balance first reaches 78 percent of that figure, which is $234,000, and he may request cancellation at 80 percent, which is $240,000. Both dollar thresholds are fixed on closing day. Neither moves if the house appreciates, and paying extra principal brings forward only the $240,000 request.

Refinancing is the one route by which rising prices retire the insurance, and it works because the reference value resets. For a refinance, "original value" means only the appraised value the lender relied on to approve the refinance (12 USC 4901(12)). Continuing the example: four years later Tomas owes $250,000 and the house appraises at $380,000. On the existing loan he is nowhere near either threshold, because both are computed on $300,000. On a refinance the reference value becomes $380,000, and $250,000 is about 65.8 percent of that ($250,000 divided by $380,000), comfortably under 80 percent, so the new loan carries no mortgage insurance requirement at all. Whether that is worth doing is a separate question, since a refinance has closing costs and a new rate, but the mechanism explains why an appraisal that does nothing on the old loan can end the coverage on a new one. Figures are illustrative.

Two exceptions sit outside all of this. Where a loan was classified as having high risks associated with the extension of credit at the time it was consummated, the request and automatic-termination rules do not apply; a non-conforming loan in that category instead terminates when the scheduled balance first reaches 77 percent of original value, and the midpoint backstop still applies (12 USC 4902(g)). And cancellation does not erase premium obligations that accrued before it (12 USC 4902(h)).

Pros

• It is what makes a low down payment possible at all on a conventional loan, so it buys entry rather than merely costing money.
• Unlike the FHA premium, it ends. On a principal residence the ending is a statutory right rather than a matter of lender goodwill.
• Both key dates are disclosed in writing at closing and the rights are restated annually, so a borrower does not have to discover them.
• Since 2026 the premiums are deductible again for a filer who itemizes and whose income is under the threshold.
• Paying extra principal genuinely accelerates the cancellation request, which gives a borrower something to act on.

Cons

• The borrower pays a premium for a policy that protects the lender, and a claim payment does not reduce what the borrower owes.
• Both thresholds run off the home's value at closing, so appreciation does not end the coverage on the existing loan.
• Extra principal does nothing for the automatic termination date, so a borrower who prepays and waits quietly pays longer than they needed to.
• The cancellation rights do not reach a loan on a property the borrower does not live in.
• Lender-paid coverage removes the monthly line and the cancellation right together, and ends only on refinance or payoff.
• A subordinate lien can block a cancellation request even when the first mortgage balance qualifies.