Free mortgage calculator
How much will my monthly mortgage payment be?
Mortgage Payment Calculator
A complete monthly housing payment can include mortgage principal, interest, property taxes, homeowners insurance, private mortgage insurance, HOA dues, and optional extra principal. Enter your own assumptions to estimate the monthly total, lifetime interest, payoff timing, and detailed amortization schedule.
- Free to use
- No account or email required
- Calculates in your browser
- Editable assumptions
How to use: Replace the example values with the scenario you want to explore. Results update as you type. Open the detailed sections for assumptions, breakdowns, and schedules.
Privacy: Rich Direction does not connect calculator entries to an email address, contact record, advertising audience, or analytics event.
What this tool calculates
What will the calculator show?
- Calculates required principal and interest for a fixed-rate mortgage.
- Adds property taxes, homeowners insurance, PMI, and HOA dues to estimate total monthly housing outflow.
- Shows total interest, principal reduction, estimated equity, and payoff timing.
- Models recurring and one-time additional principal payments.
- Produces monthly and annual amortization schedules with local CSV export.
Who this tool is for
When is this calculation useful?
This tool is for homebuyers and homeowners comparing mortgage structures, payments, escrow costs, and additional-principal strategies.
Not designed for: It is not a lender quote, loan approval, escrow analysis, appraisal, tax assessment, insurance quote, or payoff statement.
Input guide
What do the inputs mean?
- Purchase price and down payment
- The modeled property price and cash applied before financing.
- Mortgage rate and term
- The annual fixed rate and number of monthly payments.
- Property taxes
- An annual amount or rate estimate, depending on the selected input method.
- Homeowners insurance
- The estimated annual premium allocated monthly.
- PMI
- Private mortgage insurance entered as a monthly amount or annual rate estimate when applicable.
- HOA dues
- Recurring association charges that are part of housing cost but not mortgage principal.
- Additional principal
- Optional recurring or one-time amounts assumed to reduce principal.
Results guide
What do the results mean?
- Principal and interest
- The required fixed loan payment before escrow and other housing costs.
- Total monthly housing cost
- Principal, interest, taxes, insurance, PMI, HOA dues, and selected extra principal.
- Total interest
- Estimated interest over the modeled schedule.
- Payoff date and months saved
- How additional principal changes the estimated final payment date.
- Estimated equity
- Purchase price minus remaining mortgage balance, without appreciation or selling costs.
Calculation methodology
How does the calculation work?
The required payment uses the standard fixed-rate amortizing-loan formula. Each schedule row applies interest to the beginning balance, then scheduled principal and any optional extra principal. Recurring housing costs are added separately, and the final payment is reduced to avoid a negative balance.
Model assumptions
- The rate is fixed and payments occur monthly.
- Escrow costs remain at the entered amounts even though actual taxes and insurance can change.
- Additional principal is accepted and applied as modeled.
- The estimate excludes costs not entered, including maintenance, repairs, utilities, and some lender or closing charges.
Worked example
How should I interpret a result?
For a $350,000 home with 10% down, a 30-year fixed mortgage, and user-entered tax, insurance, PMI, and HOA amounts, the calculator determines the principal-and-interest payment and then adds the recurring ownership costs. Adding extra principal shows the estimated interest and time saved.
Important: The example explains the method. Your result depends entirely on the assumptions you enter.
Decision guidance
What should I compare next?
- Compare the result with official Loan Estimates from more than one lender.
- Test rates above the expected offer and higher property-tax or insurance amounts.
- Evaluate whether extra principal is preferable to maintaining liquidity or funding another goal.
Important limitations
What can change the actual result?
The estimate does not constitute a loan offer or approval. Actual payments can differ because of lender calculations, escrow changes, adjustable terms, taxes, insurance, PMI rules, fees, and payment timing.
Use the calculator as an educational comparison tool and confirm material figures with source documents, providers, lenders, taxing authorities, or qualified professionals as appropriate.
Sources and verification
Where can I verify the broader financial concepts?
- Consumer Financial Protection Bureau homebuying resources
- Consumer Financial Protection Bureau Loan Estimate explainer
External sources provide general consumer information. They do not validate a specific calculator result or endorse Rich Direction.
Authorship and maintenance
Who prepared this page?
Prepared and reviewed by Rich Direction, LLC. Calculator methodology and explanatory content last reviewed July 27, 2026.
Report a possible error or outdated assumption to support@richdirection.com.