Money Calculators
Use this mortgage affordability calculator to estimate how much house you can afford from income, debts, down payment, rate, loan term, property taxes, insurance, HOA, and debt-limit assumptions.
Live calculator
Loan amount plus down payment using the entered payment limits.
$1,550.00 available for principal and interest.
Lower of the housing-limit and total-debt-limit methods.
This shows which limit controls the estimate.
| Constraint | Monthly amount |
|---|---|
| Monthly gross income | $7,916.67 |
| Housing limit | $2,216.67 |
| Total debt limit after debts | $2,200.00 |
| Taxes, insurance, HOA | $650.00 |
| Principal and interest | $1,550.00 |
Use this as a mortgage planning estimate. Lender rules, verified income, credit profile, property taxes, insurance, HOA dues, PMI, reserves, and local costs can change the affordable price.
Quick answer
Mortgage Affordability Calculator estimates how much house you can afford from income, monthly debts, down payment, rate, loan term, taxes, insurance, HOA, and debt-limit assumptions. Use it to set a shopping range before checking a specific payment or rent-vs-buy comparison.
Formula
Affordable payment = min(gross monthly income x housing limit, gross monthly income x total debt limit - monthly debts); affordable price = loan amount from the remaining principal-and-interest budget + down paymentThe calculator subtracts estimated monthly property taxes, homeowners or mortgage insurance, and HOA dues before estimating a loan amount from the remaining principal-and-interest budget.
How to use
Example
Calculator use
Before relying on it
Details
These notes make the assumptions explicit, especially where the same search query can mean slightly different things.
The estimate compares a housing-payment limit with a total-debt limit, then uses the lower monthly budget for the home-price estimate.
Property taxes, homeowners insurance, mortgage insurance, HOA dues, and local costs can reduce the principal-and-interest budget.
A lender may use different loan-program limits, credit rules, reserves, property details, and verified income or debt figures.
The calculator uses common U.S. concepts such as DTI limits, property taxes, mortgage insurance, and HOA dues. Loan rules and ownership costs vary by program and location.
After finding a range, use the mortgage calculator for a specific listing, the DTI calculator for debt pressure, and the mortgage-vs-rent calculator if buying versus renting is still open.
Source notes
Benchmarks
The calculator is a decision aid, not a fixed rule. Use the output to compare scenarios and document your assumptions. Benchmark ranges are broad planning heuristics unless this page names a specific source for the range.
Keeps housing costs near 28% of gross monthly income.
Includes housing plus recurring debt payments.
Taxes, insurance, HOA, and rates can change the affordable price quickly.
Calculator accuracy
The formula, inputs, example, and limitations are shown so the result is checkable, not just a number in a box.
Affordable payment = min(gross monthly income x housing limit, gross monthly income x total debt limit - monthly debts); affordable price = loan amount from the remaining principal-and-interest budget + down payment
Annual income, Monthly debts, Down payment, Interest rate, Loan term, Monthly taxes, insurance, HOA, Housing limit, Total debt limit
Mortgage affordability estimates use visible income, debt, down payment, rate, term, housing-limit, and total-debt-limit assumptions. They do not replace lender underwriting, loan estimates, tax/insurance quotes, credit review, or property-specific costs.
June 6, 2026
Toolkit Shelf. Mortgage Affordability Calculator. Last reviewed June 6, 2026. https://toolkitshelf.com/tools/mortgage-affordability-calculator
FAQ
A rough estimate starts with income, existing debts, down payment, interest rate, loan term, and monthly taxes, insurance, and HOA costs.
No. This is a planning estimate. Lenders use credit, income documentation, loan program rules, assets, debts, and property details.
They are part of the monthly housing payment, so higher taxes or insurance leave less room for principal and interest.
Income, monthly debts, down payment, rate, term, property tax, insurance, HOA dues, and PMI usually move the affordable home price the most.
No. A lender can use different debt limits, verified income, credit rules, reserves, loan-program requirements, and property-specific costs.
Property taxes, homeowners insurance, HOA dues, and PMI vary by location and property, so the same income can support different home prices in different markets.