PMI and Credit Score Impact

Private mortgage insurance (PMI) protects lenders if you default when financing more than 80 percent of the home's value. PMI rates depend on your credit score and loan-to-value ratio (LTV). Borrowers with 760+ credit scores pay significantly less PMI than those with 620-639 scores. For example, at 95 percent LTV (5 percent down), a 760+ credit borrower might pay 0.35 percent annual PMI, while a 640 credit borrower might pay 2.06 percent annually. Check the credit score requirements for conventional loans to see where you stand.

The calculator shows PMI rates across multiple credit score tiers so you can see how your credit score affects your monthly payment. If your credit is below 640, you might be better served by an FHA loan, which has fixed MIP rates regardless of credit score. Learn more about when PMI goes away to plan your equity strategy.

Down Payment Strategies and Savings

Many borrowers assume they need 20 percent down to avoid PMI, but conventional loans allow 3 percent down with PMI. The question is whether putting down 3 percent and paying PMI, or saving longer for 5, 10, or 20 percent down, makes more financial sense. Use our affordability calculator to determine your target price range. The calculator helps you answer this by comparing monthly payments across different down payment levels.

If you have strong income and can afford the PMI, putting down 3 percent allows you to purchase sooner and build equity immediately. If you can save an additional 2-5 percent without significantly delaying your purchase, the monthly savings from lower PMI might justify the wait.

PMI Removal and Equity Building

Once you reach 20 percent equity through a combination of down payment and principal paydown, you can request PMI removal (in most states). The timeline depends on your amortization schedule. On a 30-year loan, reaching 20 percent equity through principal paydown alone takes roughly 12 years. On a 15-year loan, it takes about 7 years. See how extra payments save money to accelerate this timeline. The calculator shows your principal-to-interest balance early in your loan so you can estimate when you'll cross the 20 percent equity threshold.

Interest Rates and Rate Type Comparison

Conventional loans offer both fixed and adjustable-rate mortgages (ARMs). Fixed rates provide payment stability for the life of the loan. ARMs start with a lower introductory rate (typically 3/1, 5/1, 7/1, or 10/1 ARMs) that adjusts periodically after the fixed period. Check today's mortgage rates to see current pricing. The calculator lets you compare fixed and adjustable rates so you can see the payment difference, then decide whether the monthly savings with an ARM justify the risk of future payment increases.

Debt-to-Income Requirements

Conventional lenders typically want housing expenses (your mortgage payment) to be no more than 28 percent of gross monthly income and total debt (including your mortgage) to be no more than 43 percent. Some lenders will stretch to 50 percent for well-qualified borrowers with strong savings. Use our debt-to-income calculator to see if you meet lender guidelines. The calculator shows your estimated payment so you can verify you're within lender guidelines.

Reserves and Credit Requirements

Conventional loans require minimum credit scores of 620, though lenders typically prefer 640 or higher for better rates and terms. Many lenders require liquid reserves (savings) equal to one to three months of mortgage payments to show financial stability. Down payments below 20 percent typically require more reserves than 20 percent down. Explore low-down-payment options through our 3% down conventional loan programs guide.

Making Your Decision

Conventional loans are ideal for borrowers with good credit, stable income, and the flexibility to put down 3 to 20 percent. For a complete list of planning tools, visit our mortgage calculators hub. The calculator helps you identify the down payment amount that balances your budget, timeline, and PMI costs to find the right conventional loan structure for your situation.