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Mortgage Calculator 2025

See your real monthly house payment — principal, interest, property tax, insurance, PMI, and HOA — plus total interest and a full amortization schedule.

Full PITI + PMI
Amortization Chart
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How the Mortgage Calculator Works

This calculator turns four numbers you already know — home price, down payment, interest rate, and loan term — into the single figure that matters: your total monthly payment. It starts with the standard amortization formula to compute principal and interest, then layers on the costs lenders often leave out of their headline quote: property taxes, homeowners insurance, private mortgage insurance (PMI) when your down payment is under 20%, and HOA dues if you enter them.

Every component is shown separately so you can see exactly where your money goes each month. The amortization chart visualizes how your payments shift from mostly-interest to mostly-principal over the years, and the export button gives you a CSV you can keep or share. Defaults reflect typical 2025 national figures, so the page is useful the moment it loads — just replace the numbers with your own.

Who Benefits Most From This Calculator

  • First-time buyers who need to understand the true cost of ownership beyond principal and interest.
  • House hunters comparing homes at different price points, tax rates, or down payments.
  • Borrowers deciding between 15- and 30-year terms who want to see the monthly-payment and total-interest trade-off side by side.
  • Anyone weighing a larger down payment to avoid PMI or lower their payment.
  • Refinance shoppers estimating a new payment at a different rate or term.

Who Should Look Elsewhere

This tool models conventional fixed-rate mortgages. If you have an adjustable-rate mortgage (ARM), an interest-only loan, or a balloon structure, the payment will change over time in ways a fixed-rate calculator can't capture. FHA and VA borrowers should note that government mortgage insurance (MIP/funding fee) works differently from conventional PMI. And if you're shopping for how much you can borrow rather than the payment on a known price, start with the home affordability calculator instead, then return here to model the payment.

Tax Implications of a Mortgage

Owning with a mortgage can carry tax benefits, but fewer households claim them than most people assume. Mortgage interest is deductible on up to $750,000 of loan principal for homes bought after December 15, 2017 — but only if you itemize, and itemizing only helps when your deductions exceed the 2025 standard deduction of $15,000 (single) or $30,000 (married filing jointly). Property taxes are deductible too, but they share the $10,000 SALT cap with your state income taxes. For many buyers with smaller loans or in lower-tax states, the standard deduction wins and the mortgage produces no federal tax break. Treat any deduction as a possible bonus, not a reason to borrow more. Consult a tax professional for your specific situation.

Tips, Tricks & Hidden Costs to Watch

  • Budget 2–5% for closing costs — lender fees, title, appraisal, and prepaid escrow are due at closing, separate from your down payment.
  • Set aside ~1% of home value per year for maintenance — the cost first-time buyers most often forget.
  • Watch escrow adjustments — rising taxes or insurance can push your monthly payment up after year one.
  • Make one extra payment a year (or pay biweekly) to cut years and tens of thousands in interest off a 30-year loan.
  • Get PMI removed at 20% equity rather than waiting for automatic cancellation at 22%.
  • Compare APR, not just rate — APR folds in points and fees so you can compare lenders fairly.

Mortgage Payment Formula (2025)

How your monthly principal & interest, escrow, and PMI combine into a total payment.

M = P × [ r(1+r)^n ] / [ (1+r)^n − 1 ]

Example:

$320,000 loan at 6.5% over 30 years

320000 × [0.005417(1.005417)^360] / [(1.005417)^360 − 1]
= $2,022.62 / month

Variables:

M - Monthly principal & interest payment
P - Loan amount (home price − down payment)
r - Monthly interest rate (annual rate ÷ 12)
n - Total number of payments (years × 12)

Escrow = (Home Price × Tax Rate ÷ 12) + (Annual Insurance ÷ 12)

Example:

$400,000 home, 1.1% tax, $1,800 insurance

(400000 × 0.011 ÷ 12) + (1800 ÷ 12)
= $366.67 + $150.00 = $516.67 / month

Variables:

Tax Rate - Local effective property tax rate (% of home value/year)
Annual Insurance - Homeowners insurance premium per year

Total = P&I + Property Tax + Insurance + PMI + HOA

Example:

$400k home, 20% down (no PMI), no HOA

2022.62 + 366.67 + 150.00 + 0 + 0
= $2,539.29 / month

Variables:

PMI - Loan × PMI rate ÷ 12, applied only when LTV > 80%
HOA - Monthly homeowners-association dues, if any

These formulas provide the mathematical foundation for the calculations. Actual results may vary based on rounding, compounding frequency, and specific lender policies.

How We Calculate & Keep This Accurate

Principal and interest are computed with the standard fixed-rate amortization formula. PMI is applied only when the loan-to-value ratio exceeds 80%, at a default annual rate of 0.5% of the loan. Property tax and insurance are escrowed monthly from the values you enter. Defaults reflect national 2025 averages and are clearly editable.

We do not model adjustable rates, FHA/VA mortgage insurance schedules, or local transfer taxes. Results are estimates for planning and may differ from a lender's official Loan Estimate.

Data & Freshness

Figures reflect 2025 tax-year data.

Last updated June 8, 2026 · Maintained by the Financial Calculator editorial team.

Mortgage Calculator — Frequently Asked Questions

Answers to the most common questions about monthly payments, PMI, terms, taxes, and hidden costs.

What's included in my monthly mortgage payment?

A full monthly mortgage payment has up to five parts, often abbreviated PITI plus extras. Principal is the portion that pays down your loan balance. Interest is what the lender charges on the outstanding balance. Property Taxes are collected by your servicer and held in escrow to pay your county each year. Homeowners Insurance is similarly escrowed. If your down payment is under 20%, Private Mortgage Insurance (PMI) is added until you reach 20% equity. Finally, if you buy a condo or a home in a managed community, HOA dues are a separate monthly cost. This calculator shows every component separately so you see the true cost of ownership — not just principal and interest, which is what many lenders quote first. The 'total monthly payment' figure at the top is the number that actually leaves your bank account each month.

How much house can I afford on my salary?

A common guideline is the 28/36 rule: spend no more than 28% of your gross monthly income on housing (your total PITI payment) and no more than 36% on all debt combined, including car loans, student loans, and credit cards. On a $90,000 salary ($7,500/month gross), 28% is about $2,100 for your total mortgage payment. Lenders also look at your debt-to-income ratio, credit score, and down payment. Remember that the maximum a lender approves is not necessarily what you should borrow — leaving room in your budget for maintenance, emergencies, and retirement saving is wiser than maxing out. Use our dedicated home affordability calculator to work backward from your income to a target price, then plug that price into this calculator to see the resulting payment.

When do I have to pay PMI, and how do I get rid of it?

Private Mortgage Insurance is required on conventional loans whenever your loan-to-value ratio is above 80% — that is, when your down payment is less than 20% of the home price. PMI typically costs 0.3% to 1.5% of the loan amount per year, billed monthly. It protects the lender, not you. The good news is that PMI is not permanent. Under the federal Homeowners Protection Act, your servicer must automatically cancel PMI once your balance reaches 78% of the original value, and you can request cancellation at 80%. You can reach that threshold faster by making extra principal payments or when your home appreciates and you request a new appraisal. FHA loans handle mortgage insurance differently — their MIP often lasts the life of the loan unless you refinance into a conventional mortgage.

Should I choose a 15-year or 30-year mortgage?

A 30-year mortgage has lower monthly payments because the balance is spread over more time, but you pay far more total interest. A 15-year mortgage has higher monthly payments but a lower interest rate and dramatically less total interest — often less than half. For example, on a $320,000 loan at current rates, a 30-year term might cost around $2,020/month with roughly $407,000 in total interest, while a 15-year term could be about $2,650/month with roughly $156,000 in interest. The 15-year choice saves you a quarter-million dollars in this example but requires $630 more each month. The right answer depends on your cash flow and goals: choose 30 years for payment flexibility and the option to invest the difference, or 15 years if you want to be debt-free faster and can comfortably afford the higher payment. A middle path is taking a 30-year loan and voluntarily paying extra principal.

How much do extra principal payments actually save me?

Extra payments are one of the most powerful levers a borrower has, because every dollar of extra principal eliminates all the future interest that dollar would have accrued. On a $320,000, 30-year loan at 6.5%, adding just $200 a month to principal can shave roughly 6 years off the loan and save tens of thousands in interest. The earlier you make extra payments, the bigger the impact, because early in the loan most of your payment goes to interest rather than principal. A popular approach is the biweekly payment schedule — paying half your monthly payment every two weeks results in 26 half-payments, or 13 full payments per year instead of 12, painlessly adding one extra payment annually. Always confirm with your servicer that extra funds are applied to principal, not pre-paying the next scheduled payment, and check that your loan has no prepayment penalty.

Is mortgage interest tax-deductible?

Mortgage interest can be deductible if you itemize deductions, but most households no longer benefit because the standard deduction is so high — $15,000 for single filers and $30,000 for married couples filing jointly in 2025. You only gain from the mortgage interest deduction if your total itemized deductions (mortgage interest, state and local taxes capped at $10,000, charitable gifts, etc.) exceed the standard deduction. For homes purchased after December 15, 2017, interest is deductible on up to $750,000 of mortgage debt ($375,000 if married filing separately). Property taxes are deductible too, but they fall under the $10,000 SALT cap that also includes state income taxes. Many first-time buyers with smaller loans and modest property taxes find the standard deduction is still larger, so they get no tax benefit from their mortgage. Run the numbers both ways, or consult a tax professional, before assuming a tax break.

What hidden costs should I watch out for when buying?

Beyond the monthly payment, buyers face several costs this calculator does not include. Closing costs typically run 2–5% of the loan amount and cover lender fees, title insurance, appraisal, and prepaid escrow — on a $400,000 home that is $8,000–$20,000 due at closing. Discount points let you buy down your rate but cost 1% of the loan each. Ongoing maintenance is commonly estimated at 1% of the home's value per year ($4,000 on a $400,000 home) and is the cost most first-time buyers underestimate. Watch for escrow shortages — if your property taxes or insurance rise, your servicer raises your monthly payment to cover the gap, sometimes by hundreds of dollars. HOA special assessments can hit unexpectedly. And if you put less than 20% down, factor PMI into your true cost. Budget for all of these so the home doesn't become 'house poor' territory.

How does my credit score affect my mortgage payment?

Your credit score is one of the biggest drivers of the interest rate you're offered, and even a small rate difference compounds enormously over 30 years. A borrower with a 760+ score might qualify for a rate a full percentage point lower than someone with a 640 score. On a $320,000 loan, that one-point difference is roughly $200 more per month and over $70,000 in extra interest across the life of the loan. Scores above 740 generally unlock the best conventional pricing; FHA loans are more forgiving and accept scores down to 580 with a 3.5% down payment. If you're a few months from buying, paying down credit card balances to lower your utilization, avoiding new credit inquiries, and correcting report errors can lift your score enough to move you into a better pricing tier — a high-return use of your time before you lock a rate.

What is an amortization schedule and why does it matter?

An amortization schedule is the month-by-month breakdown of how each payment splits between interest and principal over the life of your loan. The key insight it reveals is that early payments are heavily weighted toward interest. On a typical 30-year loan, in the first year roughly 70–80% of each payment goes to interest and only 20–30% to principal — which is why your balance barely moves at first. As the years pass, the split gradually flips, and in the final years almost all of each payment reduces principal. Understanding this is what makes extra early payments so valuable, and it explains why refinancing late in a loan can reset you back to the interest-heavy phase. The chart on this page visualizes your cumulative principal versus interest year by year so you can see exactly when you cross the halfway point on your equity.

Should I wait for rates to drop before buying?

Timing the mortgage market is as difficult as timing the stock market, and waiting carries its own costs. If home prices rise while you wait, the higher purchase price can erase any savings from a lower rate. Many buyers follow the principle 'marry the house, date the rate' — buy when you find the right home and your finances are ready, then refinance later if rates fall. Refinancing is straightforward and often costs 2–5% of the loan, so it pays off once you can lower your rate enough to recoup those costs within a couple of years. On the other hand, if your budget is tight at today's rate, stretching to buy and hoping to refinance is risky, because rates may not fall on your timeline. The disciplined approach is to buy only what you can comfortably afford at the current rate, treat any future refinance as a bonus, and keep an emergency fund intact rather than draining it for a larger down payment.
US Mortgage Calculator User Reviews

Disclaimer: Results are estimates for planning only and do not constitute tax, legal, lending, or investment advice. Actual paycheck and tax outcomes can vary based on employer settings, local rules, and personal elections. Consult a qualified US tax professional, CFP, or attorney before making financial decisions.