Combine the recurring and irregular costs of owning a U.S. home. Enter annual bills where appropriate; the calculator converts them to monthly planning amounts. Inputs stay in your browser.
Planning result
Your estimate
Mortgage P&I—
Taxes and insurance—
Maintenance reserve—
Other monthly costs—
Estimated total per month—
Estimated total per year—
This is a planning budget, not a lender payment quote. It excludes purchase closing costs, income taxes and transaction-specific charges.
What this calculator includes
The result combines principal and interest with monthly equivalents for annual property taxes, insurance, maintenance and other ownership costs. It also includes monthly HOA dues, mortgage insurance and utilities.
Avoid double counting escrow
Mortgage statements often show one total that already includes taxes and insurance. Enter only the principal-and-interest portion in the first field, then enter annual taxes and insurance separately. Read our mortgage escrow guide for help identifying the parts.
Use the result as a planning range
Actual costs change with property use, local taxes, insurance renewals, association budgets, utility consumption and repairs. Stress-test the result with higher maintenance and insurance assumptions before deciding what is affordable.
This tool provides a simplified planning estimate. It is not lending, investment, legal, tax, insurance or professional advice. Verify assumptions using property documents, written quotes and qualified professionals.
Where to find each monthly cost
Cost
Useful source
Update trigger
Principal and interest
Loan estimate, note or mortgage statement
New loan terms or an adjustable-rate change
Property taxes
Current local tax record
Assessment, exemption or tax-rate change
Insurance
Current quote or renewal declaration
Renewal, underwriting change or coverage update
HOA dues
Association budget and resale documents
New budget or special assessment
Utilities
Property history adjusted for household use
Season, rate or occupancy change
Maintenance
Inspection, service history and replacement plan
Major repair or annual condition review
Stress-test the monthly total
Run the calculator with the best current documents, then repeat it with higher insurance, maintenance and utility assumptions. If a tax exemption belongs to the seller, do not assume the same bill will continue for the buyer. Keep a separate line for irregular but predictable projects rather than hiding every future expense in “other.”
The result is not an affordability approval. It does not measure income stability, debt obligations, emergency savings or loan qualification. Use it to understand property outflow and compare homes on the same basis.
Common questions
What if taxes and insurance are escrowed?
Enter only principal and interest in the mortgage field, then enter annual taxes and insurance separately. Otherwise those costs are counted twice.
Should major renovations be entered as maintenance?
No. Keep optional projects separate. Add a monthly reserve for known replacements when the timing and scope are reasonably defined.
How often should the total be reviewed?
Review it at least annually and whenever taxes, insurance, HOA dues, utility rates or loan terms change.
