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Mortgage Calculator with PMI, Taxes & Extra Payments

Estimate your monthly payment, total interest and payoff date in seconds.

20.0% of the home price

Optional: PMI, HOA and extra payments

PMI is added only when your down payment is under 20%.

Principal & Interest (P&I) / Month
$1,516.96
Loan payment only
P&I Tax Insurance PMI HOA
Loan Amount: $240,000
Monthly Property Tax: $250
Monthly Home Insurance: $100
Monthly PMI: $0.00
Monthly HOA Fees: $0
Total Monthly Payment: $1,866.96
Total Interest (loan term): $306,107
Paid off in
Total interest

P&I is the loan payment only. Total Monthly Payment adds property tax, home insurance, and any PMI and HOA fees you enter. Closing costs are not included.

Compare Loan Terms

Same loan amount and rate, different terms.

TermMonthly P&ITotal interest

What If the Rate Changes?

Your loan and term, with the rate moved up and down.

RateMonthly P&IChangeTotal interest

Amortization Schedule

Year-by-year view of interest, principal and remaining balance.

YearInterest paidPrincipal paidRemaining balance

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Last updated: . Calculations use the standard fixed-rate amortization formula.

Quick answer: on a $300,000 home with 20% down ($60,000), a 6.5% rate and a 30-year term, principal and interest is about $1,517 a month. With $3,000 a year in property tax and $1,200 in insurance, the total comes to about $1,867 a month. Change any number above to see your own result.

How This Mortgage Calculator Works

Buying a home is one of the biggest financial decisions most people make, and knowing your real monthly payment before you sign anything matters. Whether you are a first-time buyer comparing lenders, refinancing, or running numbers on a rental property, this free calculator gives you an instant estimate. It works on any device and needs no sign-up.

Enter the home price, down payment, interest rate and loan term. Then add property tax and home insurance and, if they apply to you, a PMI rate, monthly HOA fees and an extra monthly payment. The calculator shows:

  • Your principal and interest (P&I) payment on its own
  • Your total monthly payment including tax, insurance, PMI and HOA fees
  • The total interest you will pay over the life of the loan
  • How much time and interest an extra monthly payment saves
  • Side-by-side comparisons of 15, 20 and 30-year terms and of nearby interest rates
  • A year-by-year amortization schedule with a monthly CSV download
Market Insight: A higher rate costs real money. On a $300,000, 30-year loan, going from 6.5% to 7.0% adds about $35,900 in total interest. On a $400,000 loan the gap is about $47,900. Compare offers from at least 2–3 lenders before committing.

Mortgage Payment Formula (With Example)

P = L × c × (1 + c)n (1 + c)n − 1
P = L × [ c × (1 + c)^n ] ÷ [ (1 + c)^n − 1 ]

Where: P = Monthly Principal & Interest payment, L = Loan Amount, c = Monthly Interest Rate (annual rate ÷ 12), n = Total Number of Monthly Payments.

Manual calculation steps

  1. Find your loan amount: home price minus down payment. Example: $300,000 − $60,000 = $240,000
  2. Convert your annual rate to a monthly rate: divide by 12. Example: 6.5% ÷ 12 = 0.5417% monthly (c = 0.0054167)
  3. Convert your loan term to months: years × 12. Example: 30 years = 360 months
  4. Apply the formula: (1 + c)n = 1.0054167360 ≈ 6.9918, so P = 240,000 × (0.0054167 × 6.9918) ÷ (6.9918 − 1) ≈ $1,516.96
  5. Add property tax and home insurance (each divided by 12), plus PMI and HOA fees if they apply, to get your full monthly payment
Quick Tip: For a fast mental estimate, every $100,000 borrowed at 6.5% over 30 years costs about $632 a month in principal and interest. The table below shows other rates.

Monthly Payment per $100,000 by Interest Rate

Multiply the figure for your rate and term by your loan amount divided by 100,000. For example, a $240,000 loan at 6.5% over 30 years is 2.4 × $632 ≈ $1,517. These are principal and interest only.

Interest rate15-year20-year30-year
4.0%$740$606$477
4.5%$765$633$507
5.0%$791$660$537
5.5%$817$688$568
6.0%$844$716$600
6.5%$871$746$632
7.0%$899$775$665
7.5%$927$806$699
8.0%$956$836$734

Sample Monthly Payments by Loan Amount

The table below shows estimated principal and interest payments at a 6.5% fixed rate, calculated with the same formula as the calculator above. Taxes, insurance, PMI and HOA fees are not included.

Loan Amount 30-Year Term (P&I) 15-Year Term (P&I) Total Interest (30-yr)
$100,000$632$871$127,544
$150,000$948$1,307$191,317
$200,000$1,264$1,742$255,089
$240,000$1,517$2,091$306,107
$300,000$1,896$2,613$382,633
$400,000$2,528$3,484$510,178
$500,000$3,160$4,356$637,722

What Is Included in Your Monthly Mortgage Payment?

A standard payment has four parts, known as PITI. Many buyers also pay PMI and HOA fees on top.

Principal

This is the balance you owe the bank. Each month a portion of your payment reduces it, slowly building your home equity. Early in the loan, only a small slice of your payment goes toward principal.

Interest

The fee the lender charges for the use of its money. In the first years of a 30-year loan, most of your payment is interest. That is why paying extra toward principal early can save so much.

Taxes

Property taxes are set by your local government and are often collected monthly by your lender, held in escrow, and paid on your behalf. Use the Property Tax / Year field in the calculator.

Insurance

Homeowners insurance protects you and the lender if the property is damaged. Like taxes, it is often bundled into your monthly payment through escrow. Use the Home Insurance / Year field.

PMI and HOA fees

Private mortgage insurance (PMI) may apply when your down payment is under 20% on a conventional loan. HOA fees are charged by a homeowners association and are paid on top of your mortgage. This calculator lets you add both in the optional fields.

How Much Does a Rate Change Cost You?

Small rate differences compound over 30 years. Here is a $300,000 loan over 30 years at different rates (principal and interest only):

Interest rateMonthly P&ITotal interest
5.5%$1,703$313,212
6.0%$1,799$347,515
6.5%$1,896$382,633
7.0%$1,996$418,527
7.5%$2,098$455,152

Moving from 6.5% to 7.5% adds about $201 to your monthly payment. The live “What If the Rate Changes?” table above does the same comparison for your own numbers.

Should You Pay Extra Each Month?

Extra money sent toward principal shortens the loan and cuts the interest you pay, because every extra dollar stops accruing interest for the rest of the term. Enter an amount in the Extra Payment / Month field to see your own payoff date. Here is a $300,000 loan at 6.5% over 30 years:

Extra per monthPaid off inTotal interestYou save
None30 years$382,633n/a
+$10026 years$321,639$60,994 and 4 years
+$20023 years 1 month$279,185$103,448 and 6 years 11 months
Before you pay extra: check that your loan has no prepayment penalty and ask your servicer to apply the extra amount to principal. If you carry higher-interest debt, paying that off first is often the better move.

15-Year vs 30-Year Mortgage

On a $300,000 loan at 6.5%, a 15-year term has a payment of about $2,613 a month versus $1,896 for a 30-year term, roughly $717 more each month. In exchange, you pay about $212,235 less in interest over the life of the loan and build equity faster. The 30-year term has the lower payment and is easier to qualify for, but costs far more in interest. The “Compare Loan Terms” table above shows this for your own loan.

How PMI Works (and When It Ends)

On a U.S. conventional loan with less than 20% down, lenders usually require PMI. It protects the lender, not you. The cost is quoted as a percentage of the loan per year and varies with your credit score and down payment, so ask your lender for a real quote.

Example: a $300,000 home with 5% down ($15,000) leaves a $285,000 loan. At a 0.5% PMI rate, PMI is about $118.75 a month. With 6.5% over 30 years, principal and interest is about $1,801, so the total with PMI plus $350 a month for tax and insurance is about $2,270.

Under the U.S. Homeowners Protection Act, borrowers can generally request removal of PMI once the balance reaches 80% of the home’s original value, and it must end automatically at 78% if payments are current. Rules and exceptions vary by loan and lender. This calculator stops PMI when your balance reaches 78% of the home price you entered. In the example above, that happens after about 11 years and 3 months, and total PMI paid is about $16,000. FHA loans use a different charge, called MIP.

Practical Examples

Here is how the numbers play out in sample buying scenarios (6.5% fixed rate, 30-year term, principal and interest only):

ScenarioHome PriceDown PaymentEst. Monthly P&I
First-time buyer, starter home$220,000$11,000 (5%)$1,321
Family home, 20% down$350,000$70,000 (20%)$1,770
Upgrade home, suburban area$450,000$90,000 (20%)$2,275
Investment / rental property$275,000$55,000 (20%)$1,391

Investment properties often require a larger down payment and may carry a higher rate than a primary residence; these figures are for illustration only. Buying to rent? The ROI calculator helps you judge the return.

Common Loan Types (U.S. Examples)

Loan Type Pros Cons
Fixed RatePredictable payments; peace of mind.Rates may be higher initially.
Adjustable Rate (ARM)Lower rates in early years.Payments can rise if rates rise.
FHA Loan (U.S.)Lower down payment: as low as 3.5% for borrowers who meet FHA credit score requirements.Requires mortgage insurance premiums (MIP), and loan limits apply.
VA Loan (U.S.)Often no down payment for eligible veterans, service members and certain surviving spouses.Eligibility required; a VA funding fee usually applies.

This calculator uses a fixed-rate loan. FHA and VA programs are specific to the United States. Requirements change, so confirm current rules with an approved lender.

Common Mortgage Mistakes to Avoid

  • Ignoring the total cost of the loan. A lower monthly payment on a 30-year term can cost far more overall than a 15-year term.
  • Forgetting taxes and insurance. Principal and interest alone is not your full payment. Add tax and insurance for a realistic figure.
  • Overlooking PMI and HOA fees. With under 20% down, PMI can add a meaningful amount every month. HOA fees count too.
  • Not shopping around for rates. Sticking with the first lender you talk to can cost thousands. Even small rate differences compound over 30 years.
  • Skipping the budget check. Use the percentage calculator to see what share of your income would go to housing.
Pre-approval is Essential: Before falling in love with a home, get a pre-approval letter from a lender. This shows sellers you are a serious buyer and confirms what you can actually borrow, which may differ from the estimates on this calculator.

Tips for Getting a Better Mortgage Rate

  • Improve your credit score before applying. Even a 20–30 point increase can lower your rate.
  • Save for a larger down payment to reduce your loan-to-value ratio and, on conventional loans, avoid PMI.
  • Lower your debt-to-income ratio by paying down existing debts before applying.
  • Compare at least 3 lenders, including banks, credit unions and online lenders.
  • Consider a 15-year term if you can afford the higher payment. You will save significantly on interest.
  • Lock your rate once you find a good offer, since rates can change daily.
Buying Pro-Tip (U.S. conventional loans): Putting 20% down usually lets you avoid Private Mortgage Insurance (PMI), which can lower your monthly costs. FHA and VA loans follow different insurance and fee rules. Comparing a mortgage with other borrowing? Try the personal loan calculator.

Sources and Further Reading

Financial Disclaimer: Calculations provided are for illustrative purposes only. Actual rates, monthly payments, and eligibility are determined by your lender based on your credit score, income, and debt levels. This tool does not constitute financial advice.

Conclusion

Understanding your mortgage payment before you start house hunting puts you in a stronger negotiating position and helps you avoid financial stress down the road. Use the calculator above to test different home prices, down payments, rates and extra payments until you find a monthly payment that fits comfortably within your budget, and always get pre-approved before making an offer.

Home Buying & Finance: Frequently Asked Questions