Private mortgage insurance is one of the most expensive line items on a new homebuyer's monthly statement — and one of the least understood. PMI exists to protect the lender (not you) against default when you put down less than 20%. It typically costs 0.5-1.5% of the original loan amount per year, added to your monthly payment, and it continues until you've built sufficient equity in the property. On a $350,000 home purchase with 5% down, that's an extra $140-290 per month depending on your credit score — an amount that could otherwise be going toward retirement savings, an emergency fund, or additional principal paydown. And unlike property taxes or homeowner's insurance, PMI provides you zero direct benefit. It's pure cost.
The good news: PMI isn't permanent. The Homeowners Protection Act of 1998 (HPA) gives borrowers on conventional loans the legal right to cancel PMI once the loan-to-value (LTV) ratio reaches 80% of the original purchase price. Many homeowners wait for the lender to automatically cancel at 78% LTV — which can take 11+ years on a 30-year mortgage at current rates — when they could have requested cancellation years earlier by demonstrating that home appreciation has already pushed their equity past the threshold. Understanding both the cost and the cancellation mechanics saves the average 5%-down buyer $8,000-25,000 over the life of the policy.
PMI Rates by Credit Score and Down Payment
How PMI Is Priced
PMI rates are not fixed — they vary based on your credit score, your down payment percentage, the loan type, and occasionally the property type. The three major PMI providers (Radian, MGIC, Essent) use risk-tiered pricing that produces these approximate annual rates as a percentage of the original loan amount:
Credit Score 760+ (Excellent):
– 5% down: 0.41-0.55% annually
– 10% down: 0.19-0.26% annually
– 15% down: 0.10-0.15% annually
Credit Score 720-759 (Very Good):
– 5% down: 0.55-0.70% annually
– 10% down: 0.25-0.35% annually
– 15% down: 0.12-0.18% annually
Credit Score 680-719 (Good):
– 5% down: 0.75-1.00% annually
– 10% down: 0.38-0.52% annually
– 15% down: 0.20-0.28% annually
Credit Score 640-679 (Fair):
– 5% down: 1.05-1.50% annually
– 10% down: 0.55-0.85% annually
– 15% down: 0.32-0.50% annually
Credit Score 620-639 (Minimum for most conventional loans):
– 5% down: 1.60-2.50% annually
– 10% down: 0.90-1.30% annually
– 15% down: 0.55-0.80% annually
The Full Monthly Cost on a $350,000 Home With 5% Down
Loan Setup
Purchase price: $350,000
Down payment (5%): $17,500
Loan amount: $332,500
Mortgage rate assumption (2024 market): 7.0% for 760+ credit, 7.5% for 680-719, 8.75% for 620-639
Monthly PMI Cost by Credit Score Tier
760+ credit score (excellent):
PMI rate: 0.48% annually
Annual PMI on $332,500: $1,596
Monthly PMI: $133
Total monthly payment (P+I + PMI): $2,212 + $133 = $2,345
720-759 credit score (very good):
PMI rate: 0.62% annually
Annual PMI on $332,500: $2,062
Monthly PMI: $172
Total monthly payment: $2,212 + $172 = $2,384
680-719 credit score (good):
PMI rate: 0.87% annually (also at slightly higher base rate 7.5%)
Monthly payment at 7.5%: $2,327
Annual PMI on $332,500: $2,893
Monthly PMI: $241
Total monthly payment: $2,327 + $241 = $2,568
640-679 credit score (fair):
PMI rate: 1.27% annually (base rate 8.25%)
Monthly payment at 8.25%: $2,502
Annual PMI on $332,500: $4,223
Monthly PMI: $352
Total monthly payment: $2,502 + $352 = $2,854
620-639 credit score (minimum):
PMI rate: 2.05% annually (base rate 9.0%)
Monthly payment at 9.0%: $2,676
Annual PMI on $332,500: $6,816
Monthly PMI: $568
Total monthly payment: $2,676 + $568 = $3,244
The spread between a 760+ score and a 620-639 score adds $899/month to the same $350,000 home — a combination of higher interest rate and dramatically higher PMI. Over the period that PMI is active (often 8-12 years), the PMI cost differential alone between excellent and minimum credit can exceed $30,000.
When Does PMI Automatically Cancel?
The Homeowners Protection Act: Two Thresholds
The HPA establishes two automatic cancellation triggers on conventional mortgages:
Borrower-requested cancellation at 80% LTV: You can formally request PMI cancellation once your loan balance reaches 80% of the original purchase price AND you have a good payment history (no 30-day late payments in the past 12 months, no 60-day late payments in the past 24 months). The lender may also require a new appraisal confirming the property hasn't declined in value.
Automatic lender cancellation at 78% LTV: If you don't request cancellation at 80%, the lender is legally required to automatically cancel PMI when your loan reaches 78% of the original purchase price based on the amortization schedule (not actual value). This is the passive threshold — it happens automatically even if you do nothing.
Final automatic cancellation at midpoint of loan term: If PMI hasn't been cancelled by the midpoint of the loan (year 15 on a 30-year mortgage), it must be cancelled regardless of LTV.
The Timeline Problem: 80% LTV Takes a Long Time at 7%
The challenge for buyers who put 5% down in today's rate environment is that reaching 80% LTV through normal amortization is slow. At 7% interest on a 30-year mortgage, the vast majority of early payments go toward interest:
Loan balance reduction on $332,500 at 7%, 30-year, by year:
Year 1: Balance = $329,200 (paid off $3,300 in principal)
Year 3: Balance = $322,700 (paid off $9,800 in principal)
Year 5: Balance = $315,800 (paid off $16,700 in principal)
Year 7: Balance = $308,300 (paid off $24,200 in principal)
Year 10: Balance = $296,600 (paid off $35,900 in principal)
Target for PMI cancellation at 80% of $350,000: loan balance must reach $280,000
Amount to pay off from $332,500: $52,500
Estimated time to reach $280,000 through normal amortization: approximately 11 years
Total PMI paid over 11 years (760+ credit at $133/month): $17,556
Total PMI paid over 11 years (680-719 credit at $241/month): $31,812
Total PMI paid over 11 years (640-679 credit at $352/month): $46,464
How Home Appreciation Can Eliminate PMI Years Early
The 80% LTV Request Strategy
Here's the move most new homeowners don't know: if your home has appreciated since purchase, you can request PMI cancellation based on current market value rather than waiting for the amortization schedule to reach the original-purchase-price threshold.
The key requirement: the HPA allows lenders (at their discretion) to use current appraised value when considering a borrower-initiated cancellation request — though lenders are not required to do so. However, most major mortgage servicers (including those servicing Fannie Mae and Freddie Mac loans) have guidelines that allow cancellation based on current value if:
– The loan is at least 2 years old and current LTV is below 80%
– OR the loan is at least 5 years old and current LTV is below 80%
– The borrower has good payment history (no 30-day lates in 12 months)
Illustration of the appreciation scenario:
Year 1 purchase: $350,000 home, $332,500 loan
Year 3 current market value: $390,000 (assume 5.7% annual appreciation — roughly the long-run US average)
Year 3 loan balance: ~$322,700
Year 3 LTV based on current value: $322,700 ÷ $390,000 = 82.7% — still above 80%
Year 5 market value: $420,000 (continued appreciation)
Year 5 loan balance: ~$315,800
Year 5 LTV: $315,800 ÷ $420,000 = 75.2% — BELOW 80% → eligible for cancellation request
At year 5, the borrower pays for an appraisal (~$400-600), submits a written cancellation request to the servicer, and with good payment history and confirmed current value, eliminates PMI approximately 6 years early.
PMI saved (760+ credit at $133/month × 72 months): $9,576
Minus appraisal cost: -$500
Net savings from proactive cancellation: approximately $9,100
The Servicer Request Process
The process for requesting PMI cancellation is more straightforward than most borrowers expect:
Step 1: Contact your mortgage servicer (the company you send payments to) and request their written PMI cancellation policy and requirements.
Step 2: Confirm your loan has good payment history (request a payment history statement).
Step 3: If using current value: order an appraisal from a licensed appraiser acceptable to your servicer (they often have a preferred appraiser list).
Step 4: Submit a written PMI cancellation request with the appraisal report, payment history, and any forms your servicer requires.
Step 5: The servicer has 30 days to respond. If approved, PMI is cancelled effective the following month.
Some servicers will order their own appraisal rather than accept a borrower-ordered one — confirm which process your servicer uses before spending $500 on an independent appraisal.
PMI vs 20% Down: When Is It Worth Buying Sooner With PMI?
The Opportunity Cost Calculation
A common financial planning question: is it better to wait until you have 20% down (avoiding PMI entirely), or buy now with 5-10% down and pay PMI for several years?
The answer depends heavily on home price appreciation in your market. In a market where home prices are rising $25,000-40,000/year, every year you wait to save a larger down payment costs you equity appreciation you're not capturing. A buyer who waits 3 extra years to save an additional $35,000 (from 5% to 20% down on a $350k home) in a market where the same home is now worth $420,000 has paid $133/month in hypothetical PMI ($4,788 total) to 'save' — but the home now costs $70,000 more than it did 3 years earlier. The PMI scenario was dramatically better financially.
Conversely, in a flat or declining market, waiting for a larger down payment avoids PMI, preserves flexibility, and reduces the risk of being underwater on the loan if values dip. The PMI-or-wait decision is genuinely market-dependent.
A good first-time homebuyer guide covering PMI and down payment strategy walks through the appreciation scenario calculations in detail alongside the qualification process, which types of loan programs allow PMI elimination differently (FHA MIP vs conventional PMI vs VA loan with no PMI at all), and the refinancing path to eliminate PMI if appreciation doesn't come fast enough.
FHA vs Conventional: The PMI Comparison That Surprises Most Buyers
FHA loans have their own version of mortgage insurance called MIP (Mortgage Insurance Premium), and it works very differently from conventional PMI:
FHA MIP (loans originated after June 2013 with less than 10% down):
– Upfront MIP: 1.75% of loan amount paid at closing (on $332,500 loan: $5,819)
– Annual MIP: 0.55-1.05% depending on loan term and LTV
– Duration: PERMANENT for the life of the loan if down payment was less than 10%
– The only way to eliminate FHA MIP on a post-2013 loan with under 10% down is to refinance into a conventional loan
Conventional PMI (same $332,500 loan, 760+ credit):
– No upfront premium
– Annual PMI: 0.48% = $133/month
– Duration: Cancellable at 80% LTV — typically 8-11 years, or sooner with appreciation
– No refinancing required for cancellation
For a buyer with a 680+ credit score, conventional PMI is almost always better than FHA MIP because of the permanent duration issue. For buyers with 620-679 scores, the comparison is closer — FHA's slightly more accessible qualification standards and lower MIP rate (at 0.55-0.85% vs conventional PMI of 1.05-1.50% at that score range) can make FHA competitive even with the permanence disadvantage.
The mortgage comparison guide for conventional vs FHA loans covers the MIP vs PMI calculation in detail, including the break-even analysis on refinancing from FHA to conventional once credit scores improve — a move that eliminates MIP entirely and often comes with a lower interest rate simultaneously. For anyone trying to understand the long-term cost difference between loan types before making an offer, the homebuying cost planning worksheet provides a structured framework for calculating total cost of ownership across different down payment scenarios, loan types, and PMI removal timelines.
Related reading: getting out of credit card debt, debt payoff strategies, and improving your credit score.
The bottom line: PMI on a $350,000 home with 5% down costs $133-568/month depending on your credit score, runs for 10-11 years at normal amortization pace, and is cancellable as early as year 5 if home appreciation supports an 80% LTV request. The decision to pay PMI or wait for a larger down payment hinges entirely on local appreciation rates versus the savings discipline required to accumulate the additional down payment while renting. Neither answer is universally right — but running the numbers on your specific market and credit score, rather than defaulting to the conventional wisdom that PMI is always bad, is the correct starting point.