How the PMI Calculator Works (Step-by-Step Calculation Engine)
Our tool utilizes the exact loan-to-value (LTV) and actuarial credit tier matrices used by major private mortgage insurers like MGIC, Radian, and Enact to determine your monthly burden and timeline to cancellation.
LTV = ((Purchase Price - Down Payment) / Purchase Price) * 100Example: (($400,000 - $20,000) / $400,000) * 100 = 95.0% LTV
Monthly PMI = (Loan Amount * Annual PMI Rate) / 12Using the matrix: A 680 credit score at 95% LTV yields a 0.78% annual rate.
The calculator maps your standard amortizing principal against two statutory lines:
80% LTV Borrower Cancellation Date78% LTV Automatic Termination Date
Total Cost = Monthly PMI * Months to Reach 80% LTV
What is PMI & Why Do Lenders Require It?
Private Mortgage Insurance (PMI) is an insurance policy that protects the lender, not you, in the event that you default on your mortgage. Conventional lenders require PMI whenever a borrower makes a down payment of less than 20% (meaning the LTV is greater than 80%).
The Homeowners Protection Act (HPA) Rules
Federal law dictates how and when PMI must be canceled on single-family primary residences. According to the HPA, you have the right to request PMI cancellation once your loan balance reaches 80% of the original property value. Furthermore, the lender must automatically terminate PMI when your balance is scheduled to reach 78% of the original value, provided your payments are current.
How to Cancel PMI Early
You do not have to wait out the scheduled amortization curve to eliminate PMI. Common early cancellation strategies include:
- Accelerated Principal Payments: Making extra payments directly to principal lowers your balance faster, pushing you toward the 80% threshold sooner.
- Home Value Reappraisal: If property values in your area have surged, or if you have made significant renovations, you can request a new appraisal. If the new value pushes your current loan balance to 80% LTV or lower, you can request cancellation (usually requires a seasoning period of 2 years).
- Refinancing: If interest rates are favorable and your home has gained equity, refinancing into a new conventional loan with 20% equity instantly bypasses PMI.
Sensitivity Matrix: Monthly PMI by Credit Score & Down Payment
Assuming a $400,000 home purchase price. Rates vary by exact lender.
| Credit Score Tier | 3% Down (97% LTV) | 5% Down (95% LTV) | 10% Down (90% LTV) | 15% Down (85% LTV) |
|---|---|---|---|---|
| Excellent (760+) | $187 / mo | $120 / mo | $85 / mo | $53 / mo |
| Very Good (720-759) | $242 / mo | $167 / mo | $114 / mo | $56 / mo |
| Good (680-719) | $371 / mo | $247 / mo | $166 / mo | $65 / mo |
| Fair (620-679) | $601 / mo | $405 / mo | $272 / mo | $107 / mo |
50-State Private Mortgage Insurance (PMI) Benchmark Directory (2026)
Baseline scenario: 5% down payment (95% LTV), 700 credit score (0.78% annual PMI), 6.50% 30-year fixed rate, and state property taxes. Complete benchmarks across all 50 states plus Washington D.C.
| State | Rank | Median Price | 5% Down | Loan Balance | Monthly PMI | Tax Rate | Total With PMI | 80% LTV Date | Lifetime PMI | After PMI Removal |
|---|---|---|---|---|---|---|---|---|---|---|
| Hawaii | #1 | $850,000 | $42,500 | $807,500 | $525/mo | 0.32% | $5,972 | 124 mos (10.3 yrs) | $65,084 | $5,447 |
| California | #2 | $785,000 | $39,250 | $745,750 | $485/mo | 0.75% | $5,806 | 124 mos (10.3 yrs) | $60,107 | $5,321 |
| District of Columbia | #3 | $625,000 | $31,250 | $593,750 | $386/mo | 0.60% | $4,568 | 124 mos (10.3 yrs) | $47,856 | $4,182 |
| Massachusetts | #4 | $610,000 | $30,500 | $579,500 | $377/mo | 1.20% | $4,766 | 124 mos (10.3 yrs) | $46,708 | $4,390 |
| Washington | #5 | $595,000 | $29,750 | $565,250 | $367/mo | 0.94% | $4,523 | 124 mos (10.3 yrs) | $45,559 | $4,156 |
| Colorado | #6 | $545,000 | $27,250 | $517,750 | $337/mo | 0.55% | $3,976 | 124 mos (10.3 yrs) | $41,731 | $3,639 |
| New Jersey | #7 | $515,000 | $25,750 | $489,250 | $318/mo | 2.47% | $4,587 | 124 mos (10.3 yrs) | $39,434 | $4,269 |
| Utah | #8 | $515,000 | $25,750 | $489,250 | $318/mo | 0.57% | $3,772 | 124 mos (10.3 yrs) | $39,434 | $3,454 |
| Oregon | #9 | $490,000 | $24,500 | $465,500 | $303/mo | 0.93% | $3,741 | 124 mos (10.3 yrs) | $37,519 | $3,439 |
| Montana | #10 | $460,000 | $23,000 | $437,000 | $284/mo | 0.83% | $3,481 | 124 mos (10.3 yrs) | $35,222 | $3,197 |
| New Hampshire | #11 | $450,000 | $22,500 | $427,500 | $278/mo | 1.93% | $3,820 | 124 mos (10.3 yrs) | $34,456 | $3,543 |
| Idaho | #12 | $445,000 | $22,250 | $422,750 | $275/mo | 0.67% | $3,312 | 124 mos (10.3 yrs) | $34,074 | $3,037 |
| Rhode Island | #13 | $445,000 | $22,250 | $422,750 | $275/mo | 1.53% | $3,631 | 124 mos (10.3 yrs) | $34,074 | $3,356 |
| Nevada | #14 | $440,000 | $22,000 | $418,000 | $272/mo | 0.59% | $3,247 | 124 mos (10.3 yrs) | $33,691 | $2,975 |
| New York | #15 | $440,000 | $22,000 | $418,000 | $272/mo | 1.73% | $3,665 | 124 mos (10.3 yrs) | $33,691 | $3,393 |
| Arizona | #16 | $435,000 | $21,750 | $413,250 | $269/mo | 0.63% | $3,226 | 124 mos (10.3 yrs) | $33,308 | $2,957 |
| Maryland | #17 | $415,000 | $20,750 | $394,250 | $256/mo | 1.05% | $3,228 | 124 mos (10.3 yrs) | $31,777 | $2,972 |
| Florida | #18 | $395,000 | $19,750 | $375,250 | $244/mo | 0.91% | $3,032 | 124 mos (10.3 yrs) | $30,245 | $2,788 |
| Virginia | #19 | $395,000 | $19,750 | $375,250 | $244/mo | 0.87% | $3,019 | 124 mos (10.3 yrs) | $30,245 | $2,775 |
| Connecticut | #20 | $385,000 | $19,250 | $365,750 | $238/mo | 2.15% | $3,356 | 124 mos (10.3 yrs) | $29,479 | $3,118 |
| Maine | #21 | $370,000 | $18,500 | $351,500 | $228/mo | 1.28% | $2,962 | 124 mos (10.3 yrs) | $28,331 | $2,733 |
| Alaska | #22 | $365,000 | $18,250 | $346,750 | $225/mo | 1.22% | $2,905 | 124 mos (10.3 yrs) | $27,948 | $2,679 |
| Vermont | #23 | $365,000 | $18,250 | $346,750 | $225/mo | 1.90% | $3,112 | 124 mos (10.3 yrs) | $27,948 | $2,886 |
| Delaware | #24 | $360,000 | $18,000 | $342,000 | $222/mo | 0.61% | $2,684 | 124 mos (10.3 yrs) | $27,565 | $2,461 |
| Wyoming | #25 | $345,000 | $17,250 | $327,750 | $213/mo | 0.61% | $2,577 | 124 mos (10.3 yrs) | $26,417 | $2,364 |
| Minnesota | #26 | $335,000 | $16,750 | $318,250 | $207/mo | 1.11% | $2,645 | 124 mos (10.3 yrs) | $25,651 | $2,438 |
| North Carolina | #27 | $330,000 | $16,500 | $313,500 | $204/mo | 0.82% | $2,527 | 124 mos (10.3 yrs) | $25,268 | $2,324 |
| Georgia | #28 | $325,000 | $16,250 | $308,750 | $201/mo | 0.90% | $2,513 | 124 mos (10.3 yrs) | $24,885 | $2,312 |
| Tennessee | #29 | $320,000 | $16,000 | $304,000 | $198/mo | 0.67% | $2,414 | 124 mos (10.3 yrs) | $24,502 | $2,217 |
| Texas | #30 | $315,000 | $15,750 | $299,250 | $195/mo | 1.68% | $2,644 | 124 mos (10.3 yrs) | $24,120 | $2,449 |
| New Mexico | #31 | $305,000 | $15,250 | $289,750 | $188/mo | 0.80% | $2,340 | 124 mos (10.3 yrs) | $23,354 | $2,151 |
| South Dakota | #32 | $305,000 | $15,250 | $289,750 | $188/mo | 1.22% | $2,447 | 124 mos (10.3 yrs) | $23,354 | $2,258 |
| South Carolina | #33 | $300,000 | $15,000 | $285,000 | $185/mo | 0.57% | $2,246 | 124 mos (10.3 yrs) | $22,971 | $2,061 |
| Wisconsin | #34 | $285,000 | $14,250 | $270,750 | $176/mo | 1.73% | $2,415 | 124 mos (10.3 yrs) | $21,822 | $2,239 |
| Pennsylvania | #35 | $275,000 | $13,750 | $261,250 | $170/mo | 1.53% | $2,288 | 124 mos (10.3 yrs) | $21,057 | $2,119 |
| Illinois | #36 | $265,000 | $13,250 | $251,750 | $164/mo | 2.23% | $2,364 | 124 mos (10.3 yrs) | $20,291 | $2,200 |
| North Dakota | #37 | $260,000 | $13,000 | $247,000 | $161/mo | 1.00% | $2,055 | 124 mos (10.3 yrs) | $19,908 | $1,895 |
| Nebraska | #38 | $255,000 | $12,750 | $242,250 | $157/mo | 1.67% | $2,160 | 124 mos (10.3 yrs) | $19,525 | $2,003 |
| Michigan | #39 | $245,000 | $12,250 | $232,750 | $151/mo | 1.48% | $2,041 | 124 mos (10.3 yrs) | $18,760 | $1,890 |
| Missouri | #40 | $245,000 | $12,250 | $232,750 | $151/mo | 0.98% | $1,939 | 124 mos (10.3 yrs) | $18,760 | $1,788 |
| Indiana | #41 | $240,000 | $12,000 | $228,000 | $148/mo | 0.84% | $1,874 | 124 mos (10.3 yrs) | $18,377 | $1,726 |
| Alabama | #42 | $225,000 | $11,250 | $213,750 | $139/mo | 0.40% | $1,682 | 124 mos (10.3 yrs) | $17,228 | $1,543 |
| Kansas | #43 | $225,000 | $11,250 | $213,750 | $139/mo | 1.43% | $1,875 | 124 mos (10.3 yrs) | $17,228 | $1,736 |
| Ohio | #44 | $225,000 | $11,250 | $213,750 | $139/mo | 1.59% | $1,905 | 124 mos (10.3 yrs) | $17,228 | $1,766 |
| Iowa | #45 | $220,000 | $11,000 | $209,000 | $136/mo | 1.57% | $1,861 | 124 mos (10.3 yrs) | $16,845 | $1,726 |
| Louisiana | #46 | $215,000 | $10,750 | $204,250 | $133/mo | 0.56% | $1,641 | 124 mos (10.3 yrs) | $16,463 | $1,508 |
| Kentucky | #47 | $210,000 | $10,500 | $199,500 | $130/mo | 0.85% | $1,656 | 124 mos (10.3 yrs) | $16,080 | $1,526 |
| Arkansas | #48 | $205,000 | $10,250 | $194,750 | $127/mo | 0.64% | $1,584 | 124 mos (10.3 yrs) | $15,697 | $1,457 |
| Oklahoma | #49 | $205,000 | $10,250 | $194,750 | $127/mo | 0.89% | $1,626 | 124 mos (10.3 yrs) | $15,697 | $1,500 |
| Mississippi | #50 | $185,000 | $9,250 | $175,750 | $114/mo | 0.79% | $1,464 | 124 mos (10.3 yrs) | $14,165 | $1,349 |
| West Virginia | #51 | $165,000 | $8,250 | $156,750 | $102/mo | 0.59% | $1,290 | 124 mos (10.3 yrs) | $12,634 | $1,189 |
Persona Worked Example
Meet Tyler and Sarah. They are buying a $380,000 home in Columbus, Ohio. They have a 710 credit score and can afford a 5% down payment ($19,000). Their loan amount is $361,000.
- LTV Ratio: 95%
- Credit Tier: Good (680-719)
- PMI Rate: 0.78%
Their monthly PMI premium is calculated as ($361,000 * 0.0078) / 12 = $234.65 per month. If they make standard monthly payments on a 30-year fixed loan at 6.5%, it will take them roughly 99 months (just over 8 years) to reach 80% LTV, meaning they will pay approximately $23,230 in lifetime PMI premiums before cancellation.
Limitations and Exemptions
Investor Properties Exemption: The Homeowners Protection Act (HPA) only covers single-family primary residences. If you are buying a multi-unit property or an investment home, the lender is not legally required to cancel your PMI at 80% LTV. You must check your specific loan documents.
High-Risk Loan Exceptions: Loans classified as "high risk" by the lender may have stricter cancellation requirements, potentially requiring the loan to reach a 77% LTV milestone or tying cancellation strictly to the half-life of the loan term.
FHA Loans (MIP): This calculator applies to Conventional Private Mortgage Insurance. FHA loans use a different system called Mortgage Insurance Premiums (MIP), which usually lasts for the entire life of the loan regardless of LTV.