Toolarithm

Finance Calculator

Mortgage Payment Calculator

Estimate a monthly mortgage payment with PMI, closing costs, property tax, insurance, HOA dues, affordability DTI, and an amortization preview. Use the breakdown to compare home price and down payment assumptions.

Live calculator

Mortgage payment inputs

Loan setup

$
$

20% down

%
yrs

Monthly housing costs

$
$
$

PMI and closing costs

%/yr

Used automatically when down payment is below 20%.

$

Leave at 0 to use the estimate.

%
$
$
$

Used for amortization preview.

Affordability check

$
$

Estimated monthly payment

$2,316.07

Principal & interest

$1,816.07

PMI

$0.00

Cash to close

$84,200.00

Monthly breakdown

Principal & interest$1,816.07
Property tax$350.00
Home insurance$150.00
PMI$0.00
HOA$0.00

Affordability

Conservative
Front-end DTI24.4%
Back-end DTI31.2%

This is a planning signal, not an approval decision. Lender rules vary.

Cash to close

Down payment$70,000.00
Estimated closing costs$10,500.00
Prepaids and escrow$2,500.00
Other closing costs$1,200.00

Amortization preview

First-year principal$2,984.09
First-year interest$18,808.80
Balance after 5 years$262,851.99
Interest saved$0.00
Time savedNo change

Breakdown

PITI + PMI

Inputs

14 Controls

Output

Payment + DTI

No sign-upFormula shownPrint-friendly
What Can You Create?

Build monthly home payment scenarios

Home purchase estimates

Estimate a monthly payment from home price, down payment, mortgage rate, repayment term, PMI, and escrow assumptions.

Cash-to-close planning

Add closing cost percentage, prepaid taxes and insurance, and other upfront costs before comparing homes.

Affordability checks

Compare front-end and back-end DTI while keeping lender-specific rules separate from the estimate.

Why Users Love This Tool

A more complete mortgage planning view

Payment breakdown

  • Principal and interest are separated from tax, insurance, PMI, and HOA costs so users can see what each category contributes.
  • PMI can be estimated automatically below 20 percent down or overridden with a lender-provided monthly amount.
  • Cash to close combines down payment, estimated closing costs, prepaid escrow, and other upfront costs.
  • The amortization preview shows first-year principal, first-year interest, five-year balance, and extra-payment savings.

Practical caveats

  • Affordability labels use DTI as a planning signal, but actual approval depends on lender underwriting.
  • Closing costs and PMI remain editable assumptions because real quotes vary by location and loan profile.
  • Print and copy actions preserve the assumptions behind the estimate for budgeting or lender conversations.
  • Related links point users to amortization and loan calculators when they need deeper repayment detail.
Perfect For

Mortgage estimates for buyers and homeowners

First-time buyers

Estimate how down payment, PMI, closing costs, and income assumptions affect monthly housing cost.

Refinance planning

Compare a new rate and term against a current mortgage payment before requesting lender quotes.

Budget reviews

Keep principal, escrow items, PMI, HOA, DTI, and cash-to-close needs visible while reviewing affordability.

How It Works

How it works in three quick steps.

1

Enter the home price and down payment

Add the purchase price, expected down payment, mortgage rate, and repayment term so the calculator can estimate the base loan payment.

2

Add housing, PMI, and closing assumptions

Enter property tax, insurance, HOA dues, PMI rate or override, closing cost percentage, prepaid escrow, and other cash-to-close items.

3

Review affordability and repayment

Compare the monthly breakdown, cash to close, front-end and back-end DTI, and amortization preview with optional extra principal payments.

Download & Print

Save, share, and print your mortgage estimate

Copy the payment summary

Save the monthly estimate, loan amount, principal and interest, and total interest in one compact note.

Print assumptions

Print the page after entering a specific home price, tax estimate, and insurance assumption.

Support comparisons

Use multiple printed or copied results to compare homes, down payments, and rate assumptions.

FAQ

Frequently Asked Questions

What does this mortgage payment calculator include?
This calculator estimates principal and interest, property tax, homeowners insurance, HOA dues, PMI, closing costs, prepaid taxes and insurance, cash to close, affordability DTI, and an amortization preview. Those pieces create a stronger planning estimate than principal and interest alone. It still does not replace lender disclosures, because mortgage insurance rules, escrow setup, closing fees, and underwriting standards vary by lender and location.
What is principal and interest in a mortgage payment?
Principal and interest is the loan repayment portion of a mortgage payment. Principal reduces the amount borrowed, while interest is the cost charged by the lender. The calculator uses a fixed-rate amortization formula for this part of the payment. Taxes, insurance, and HOA dues are shown separately because those costs can change over time and are not part of the loan balance itself.
How does the down payment affect the mortgage payment?
A larger down payment lowers the loan amount, which usually lowers the principal and interest payment and reduces total interest paid over the loan term. It can also affect whether private mortgage insurance applies. This calculator estimates PMI automatically when the down payment is below 20 percent unless a manual monthly PMI amount is entered, making the payment impact easier to compare.
Why are property tax and insurance annual inputs?
Property tax and homeowners insurance are often estimated annually, then divided into monthly escrow amounts by lenders or budgeting tools. This calculator follows that practical pattern. Entering annual values makes it easier to use numbers from local tax estimates, insurance quotes, or existing housing records, while the result still shows the monthly impact alongside principal and interest.
How does the affordability check work?
The affordability check compares the estimated monthly housing payment against monthly gross income for front-end DTI, then adds other monthly debts for back-end DTI. The status label is a planning signal, not a lender decision. Actual mortgage approval depends on credit, reserves, loan type, property details, documentation, local rules, and lender underwriting standards.
Does this mortgage calculator include PMI?
Yes. The calculator includes an estimated PMI rate and a manual monthly PMI override. If the down payment is below 20 percent and the manual override is set to zero, the calculator estimates monthly PMI from the loan amount and annual PMI rate. If you already have a lender quote or a known monthly PMI amount, enter it in the override field for a more specific scenario.
What does cash to close include?
The cash-to-close estimate combines the down payment, estimated closing costs, prepaid taxes and insurance, and any other closing costs entered by the user. It is a planning estimate for upfront cash needs, not a final settlement statement. Real closing costs can include lender fees, title fees, transfer taxes, recording charges, escrow deposits, credits, and other location-specific items.
About This Tool

Why mortgage estimates need a payment breakdown

A mortgage payment can be confusing because the phrase often means different things in different conversations. Sometimes it refers only to principal and interest. Other times it includes property tax, homeowners insurance, mortgage insurance, HOA dues, and escrowed costs. Toolarithm's mortgage payment calculator separates those parts so users can see what is coming from the loan, what is coming from housing costs around the loan, and what may be needed upfront at closing. That is useful when comparing homes because two properties with the same purchase price can have different tax bills, insurance costs, PMI exposure, HOA dues, and cash-to-close needs.

This page is designed for early planning, education, and comparison work. It gives users a structured estimate before they talk to a lender, refinance an existing mortgage, or compare a few possible purchase prices. It does not replace preapproval, disclosures, appraisals, or professional advice. PMI, closing costs, maintenance, utilities, changing escrow balances, and local lending rules can all change the real monthly cost. By keeping the core mortgage math clear, adding DTI and amortization context, and linking to amortization support, the page helps users ask better questions about affordability, loan structure, upfront cash, and long-term interest before they commit to a formal quote.

Editorial Transparency

Who maintains this page

Ownership and review

Written and maintained by the Toolarithm editorial team. No review date is shown without a maintained editorial record. No independent professional review is claimed.

Methodology

Formulas are checked with worked examples and boundary cases. Timing, compounding, payment, and rounding assumptions remain visible; results are educational estimates, not financial advice.

Read the editorial methodology

Dates and sources

Review dates change only after a substantive method or content check.

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