The PMI Deduction Calculator estimates how much of your private mortgage insurance premiums remain deductible after the income phase-out, and what that deduction is worth at your tax rate. Enter total PMI paid, your adjusted gross income, filing status, and optionally your marginal rate.
How It Works
Under the rules the calculator models, the deduction phases out between AGI of 110,000 for most filers (between 55,000 for married filing separately). The phase-out is stepped, not smooth: for each 500 steps when filing separately), the deductible amount falls by 10%, reaching zero at the ceiling. The calculator reports the deductible and non-deductible portions, the phase-out percentage, and estimated savings at your marginal rate (22% by default).
Parameters
| Input | Required | Meaning | |---|---|---| | Total PMI paid | Yes | Premiums paid in the year | | Adjusted gross income | Yes | Drives the phase-out | | Filing status | Yes | Selects the 50k threshold band | | Marginal tax rate | No | For the savings estimate; defaults to 22% |
Worked example
You paid 104,000, filing jointly. AGI exceeds the threshold by 1,440, the non-deductible portion is 316.80. At an AGI of exactly 2,400 would be deductible (saving 110,000 or above, nothing is. Each 240 of deduction here, an effective marginal quirk worth knowing before a December bonus or Roth conversion lands.
The availability warning that matters most
The PMI deduction has had an on-again, off-again life in US tax law: it expired and was retroactively extended several times, and whether it exists at all depends on the tax year you are filing. The phase-out mechanics modeled here are the deduction's classic form. Before counting this saving, confirm the deduction is in force for your filing year in current IRS guidance (it is claimed as mortgage insurance premiums within the qualified residence interest itemized deductions); if it has lapsed for your year, the calculator's answer describes a benefit you cannot take, and your itemizing decision must be made without it.
Itemizing is the gate
Even in a year when the deduction exists, it only pays if you itemize: PMI joins mortgage interest, SALT (as capped), and charitable gifts on Schedule A, and the bundle must beat your standard deduction before the PMI portion saves anything. Households close to the line should run the totals both ways; the calculator's savings figure assumes the deduction is fully usable at your marginal rate, which is exactly the assumption to verify.
Limitations
The model applies the stepped phase-out described above to the premiums and AGI you enter. It does not determine whether the deduction is available for your tax year, whether premiums were prepaid and must be allocated across years (a real rule for upfront PMI), VA funding fees and FHA mortgage insurance nuances, or rental-property treatment (where PMI is a rental expense, not this deduction). Confirm with current IRS publications or a tax professional.
Frequently Asked Questions
Why does the deduction vanish at $110,000 AGI?
The phase-out is written as ten 10% steps across the 110,000 band, so the ceiling is a hard stop: 110,000 allows none (half those figures when married filing separately).
Is PMI on a rental property handled the same way?
No. PMI on a rental is generally a business expense of the rental activity, outside this itemized deduction and its phase-out. This calculator models the personal-residence deduction only.
Does paying PMI upfront change the calculation?
It can: prepaid premiums are generally allocated over the shorter of the loan term or 84 months rather than deducted entirely in the payment year. Enter the portion attributable to the filing year, not the full upfront amount.