PMI Calculator (Private Mortgage Insurance)
Calculate your PMI monthly cost, how long it will take to reach 20% equity, and the total PMI you'll pay. Includes home appreciation to accelerate LTV progress.
How to Use This Calculator
Enter your home price, down payment, and interest rate. The calculator shows your PMI cost and — crucially — how many months until you can cancel PMI. Toggle the appreciation slider to see how rising home values accelerate your path to 20% equity.
- 1Enter Your Home Price & Down Payment — The down payment percentage determines your starting LTV. Any amount under 20% triggers PMI.
- 2Set the PMI Rate — PMI typically costs 0.5% to 1% of the loan amount annually. The default is 0.85% — adjust based on your credit score and lender quote.
- 3Adjust Home Appreciation — Default is 3% annually. Higher appreciation means you reach 80% LTV (and cancel PMI) faster. Try 0% for a worst-case scenario.
- 4Review the Results — See your monthly PMI cost, how many months you'll pay PMI, and the total PMI cost over that period.
📊 Example: $400,000 Home with 10% Down
You're buying a $400,000 home with only 10% down ($40,000). Your loan is $360,000 at 6.5% with a PMI rate of 0.85%. Here's what PMI looks like:
| Home Price | $400,000 |
| Down Payment (10%) | $40,000 |
| Loan Amount | $360,000 |
| Monthly PMI Payment | $255/mo |
| Months Until PMI Canceled (3% appreciation) | 46 months (3.8 yrs) |
| Total PMI Paid | $11,730 |
With 0% appreciation (flat market), you'd pay PMI for 89 months (7.4 years) and spend over $22,000 in PMI premiums. That's why a 20% down payment — or accelerated principal payments — saves real money.
Understanding Your Results
PMI can significantly increase your housing costs. Here's how to interpret the key results:
Common Mistakes to Avoid
Homebuyers often misunderstand PMI or fail to plan for it. Avoid these common errors:
❌ Thinking PMI is tax-deductible for most people.
✅ PMI was tax-deductible for some taxpayers in prior years, but this deduction has expired for most filers. Check the current tax law — don't assume PMI will reduce your tax bill. If your AGI is over $109K, you almost certainly cannot deduct PMI.
❌ Assuming PMI automatically cancels at 80% LTV without checking.
✅ Under the Homeowners Protection Act, PMI must automatically terminate at 78% LTV. But you can request cancellation at 80% LTV. You need to track your equity and send a written request. Some servicers don't notify you when you're eligible.
❌ Not considering alternatives to PMI.
✅ Instead of paying PMI, consider: (1) a piggyback loan (80% first + 10% second + 10% down), (2) lender-paid PMI (higher rate, no monthly PMI), or (3) an FHA loan with MIP (different cost structure). Run all scenarios through our calculators before deciding.
Related Tools & Guides
Explore your options for avoiding or minimizing PMI: