Rent Affordability Calculator: Monthly Budget & Rent Share

Estimate the monthly amount left for rent after your take-home income, other expenses, debt payments, savings plan, and housing costs outside rent. Optionally test a proposed rent against the same budget.

Build a monthly rent budget

Use monthly take-home amounts in US dollars. Enter each expense once. Do not include rent in the expense fields below; enter a proposed rent separately if you want to test it.

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For worked examples, read our guide to calculating a monthly rent budget.

How to calculate how much rent you can afford

Start with take-home income rather than gross salary. Subtract non-rent expenses, debt payments, planned savings and reserves, and housing costs not included in rent. The remaining amount is an upper boundary under that entered budget, not necessarily a comfortable rent.

Amount left for rent = take-home income - other living expenses - debt payments - savings and reserves - housing costs outside rent.

Example: $4,000 monthly take-home income minus $1,500 living expenses, $300 debt payments, $500 savings and reserves, and $200 other housing costs leaves $1,500. A proposed $1,200 rent leaves $300 beyond those entered commitments and equals 30% of take-home income. These amounts are illustrations, not recommended targets.

Do not mix gross-income rules with a net-income budget

Some landlords or budgeting rules use gross income. This calculator uses take-home income throughout, including the displayed rent percentage. It does not apply a universal 30% limit or calculate a landlord's income qualification rule.

Account for irregular and move-in costs

A monthly budget can miss annual bills, repairs, healthcare variations, moving costs, deposits, furniture, and application charges. Include sensible reserves where appropriate and assess one-off move-in cash separately. If income varies, test several realistic scenarios rather than assuming every month is the same.

Frequently asked questions

Are zero expense inputs safe to leave unchanged?

Only if they reflect your circumstances. Default zero values are not typical household costs. Missing expenses make the amount left for rent larger than a fuller budget would show.

What if my budget is already negative?

The tool shows the deficit before rent and zero available for rent. It does not treat a negative result as a negative rent or as approval of any housing payment.

Should I include a credit card payment and the purchases it pays for?

Avoid counting the same spending twice. Separate current expenses from repayment of prior debt and keep a consistent cash-flow approach.

What about utilities, insurance, and parking?

Include costs you pay outside rent in the non-rent housing field. If a cost is already included in the proposed rent, do not add it again. Check the actual lease or listing.

What input limits apply?

Monthly income must be positive. Expenses and proposed rent may be zero. Each amount accepts up to $100 million with two decimal places. Leave proposed rent blank to skip comparison; all other fields require a number. These are calculation limits, not typical incomes or costs.

For a savings target, use the Savings Calculator. For commercial floor-area quotes, use our Commercial Rent Calculator, which serves a different purpose.