Mortgage Basics

What Makes Up Your Monthly Payment?

Your mortgage payment usually includes four components (often called PITI):

• Principal: The portion that reduces the outstanding loan balance.
• Interest: The cost charged by the lender to borrow the money.
• Taxes: Property taxes collected by the county and often paid through escrow.
• Insurance: Homeowners insurance (and mortgage insurance if applicable) — sometimes escrowed.

Early in a mortgage’s life, a larger share of your payment goes toward interest. Over time, as principal declines, more of each payment reduces the loan balance — this is mortgage amortization.

Down Payments and Mortgage Insurance

The down payment is your upfront contribution toward the purchase price. Many lenders prefer 20% down, but there are options for lower down payments. If your down payment is less than 20% on a conventional loan, you’ll likely pay Private Mortgage Insurance (PMI), which protects lenders if you default. PMI can usually be canceled once your equity reaches 20% by paying down the loan or through home appreciation.

How Lenders Decide Your Rate and Loan Size

Lenders evaluate loan applications using several key factors:

• Credit score: Higher scores typically qualify for better rates.
• Debt-to-income ratio (DTI): Lenders prefer a DTI below about 43% (front-end and back-end ratios vary by program).
• Employment and income stability: Steady income and documented employment reduce risk.
• Down payment & equity: More equity lowers lender risk.
• Property appraisal: Confirms the home’s market value used as collateral.

Closing Costs and Fees

Closing costs are fees paid at the final step of a home purchase. They typically range from 2% to 5% of the loan amount and include lender origination fees, appraisal charges, title insurance, recording fees, and prepaid items like tax and insurance escrow. Buyers can sometimes negotiate seller concessions or choose a lender-credit option (which slightly raises rate to reduce upfront costs).

Shopping for the Best Mortgage

When comparing lenders:

• Compare APR (annual percentage rate) rather than interest rate alone; APR includes certain fees and gives a more complete cost picture.
• Request Loan Estimates from several lenders and compare fees, rates, and terms.
• Ask about rate locks, lock expiration, and float-down options in case rates fall before closing.
• Check for second charges (processing, underwriting) and whether any fees are refundable if the loan doesn't close.

Refinancing: When It Makes Sense

Refinancing replaces your existing mortgage with a new loan. Common reasons include lowering your interest rate, shortening the term (e.g., 30 → 15 years), switching from an ARM to a fixed-rate mortgage, or taking cash out of equity. Always run a break-even analysis: divide total refinance costs by monthly savings to find how many months to recoup expenses. If you plan to move before reaching that point, refinancing might not be worthwhile.

Common Mistakes to Avoid

• Buying at the maximum pre-approval amount and leaving no buffer for maintenance or rising costs.
• Ignoring total housing costs like property taxes, insurance increases, HOA fees, and maintenance.
• Cutting corners on inspections or skipping walk-throughs to speed up a purchase.
• Extending the loan term excessively to lower monthly payments, which can increase total interest paid.

Final Thoughts

A mortgage is a powerful financial tool that builds homeownership and wealth over time when used wisely. Learn the terms, shop multiple lenders, understand the math behind rates and closing costs, and choose a mortgage aligned with your timeline and financial resilience. With careful planning and realistic budgeting, a mortgage can be a sustainable path to owning a home and building long-term equity.

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