Short answer: On a $300,000 home, an illustrative 30-year fixed loan at 6.50% produces estimated monthly totals of about $2,345 with 5% down, $2,244 with 10% down, and $1,942 with 20% down. These examples include estimated property taxes and homeowners insurance; the first two also include an assumed PMI amount.
Your actual payment depends on the rate you qualify for, loan type, property-tax bill, insurance quote, mortgage insurance, and HOA dues. The 6.50% rate below is a modeling assumption, not a current rate offer.
Payment comparison for a $300,000 home
Assumptions: 30-year fixed mortgage at 6.50%; property taxes at 1.10% of the home's value per year ($275/month); homeowners insurance at $150/month; and, for the 5% and 10% down examples only, illustrative PMI at 0.50% of the original loan amount per year. PMI pricing varies by borrower and insurer.
| Down payment | Loan amount | Principal & interest | Tax + insurance | Illustrative PMI | Monthly estimate |
|---|---|---|---|---|---|
| 5% ($15,000) | $285,000 | $1,801 | $425 | $119 | $2,345 |
| 10% ($30,000) | $270,000 | $1,707 | $425 | $113 | $2,244 |
| 20% ($60,000) | $240,000 | $1,517 | $425 | $0* | $1,942 |
*The 20% down example assumes no monthly conventional PMI. Other loan types and fees can differ. The table does not include HOA dues, utilities, maintenance, or other debts.
Why the down payment changes the monthly bill
A larger down payment reduces the amount borrowed, so principal and interest generally fall. For many conventional loans, putting 20% down can avoid PMI, although the best choice depends on the rate, available cash, and competing financial priorities. Do not assume that using every dollar for a down payment is automatically wise.
Principal and interest are not the whole payment
Mortgage calculators often show principal and interest first. Your full monthly housing cost can also include property taxes, homeowners insurance, mortgage insurance, and HOA dues. Taxes and insurance may be collected through escrow, but escrow is a payment method—not an extra fee category to count twice.
How to estimate your own $300,000 payment
- Enter the purchase price and down payment in the mortgage calculator.
- Use the interest rate and loan term from a lender quote.
- Replace the example tax and insurance values with local estimates.
- Add PMI or FHA mortgage insurance where applicable, plus HOA dues.
- Compare the full payment with your income, debts, and emergency savings.
Related guides: salary needed for a $300,000 house, what PMI is and how it works, and home closing costs explained.
Get a written estimate before making an offer
Ask more than one lender for a Loan Estimate using the same loan amount, down payment, and rate-lock assumptions. Compare interest rate, APR, lender fees, mortgage insurance, cash to close, and the estimated total monthly payment. A lower advertised principal-and-interest number may not mean a lower overall cost.
Frequently asked questions
How much is the mortgage payment on a $300,000 house?
It depends on the down payment, rate, taxes, insurance, mortgage insurance, and HOA. Under the assumptions in this guide, the estimated monthly total ranges from about $1,942 with 20% down to $2,345 with 5% down.
What is the payment on a $300,000 house with 20% down?
At the illustrative 6.50% 30-year rate, principal and interest are about $1,517 monthly. Adding the example $275 property tax and $150 insurance gives about $1,942 before HOA and other costs.
Does the mortgage payment include property taxes?
It may be collected with the payment through escrow, but it is separate from principal and interest. Always compare the total monthly payment.
Is 6.50% the current mortgage rate?
No. It is a fixed example assumption used to make the scenarios comparable. Use a live lender quote for an actual decision.
Sources and further reading
- CFPB: Closing Disclosure and total monthly payment
- Fannie Mae: How mortgage payments are calculated
- SmartMortgageCalc mortgage calculator
Financial education only—not a mortgage offer, underwriting decision, tax opinion, or legal advice. Rates, eligibility, fees, and program rules change and vary by lender and location. Verify all figures with a licensed mortgage professional and review your official Loan Estimate and Closing Disclosure. Affiliate disclosure.