🏠 Rent Affordability Calculator

How the Rent Affordability Calculator Works

There is no single right answer to how much rent you can afford, so this calculator shows three widely used reference points side by side. The 30% rule suggests spending no more than about 30% of gross (pre-tax) income on rent. Many landlords use an income test, often requiring yearly income of about 40 times the monthly rent (equivalent to rent of 2.5% of yearly income, or 30% of monthly income). A debt-based check keeps rent plus other monthly debt payments at or below a set share of gross income, commonly 36%–43%.

The lowest of the three is shown as a conservative upper limit. These are rules of thumb: local housing costs, taxes, savings goals, and household size all matter, so adjust the percentages to your own situation. Utilities and renter’s insurance are usually extra.

Formula

30% rule:            max rent = gross monthly income × 30%
Landlord income test: max rent = gross yearly income ÷ 40
Debt-based check:    max rent = gross monthly income × 36% − monthly debt payments
Conservative limit = the lowest of the three

How to Use It

1. Enter your gross (pre-tax) yearly income.
2. Enter your monthly debt payments (car, student loans, minimum card payments).
3. Adjust the percentages if you use different rules.
4. Compare the three limits and the conservative maximum.

Frequently Asked Questions

How much rent can I afford on my salary?

A common guideline is about 30% of gross monthly income. On 60,000 a year (5,000 a month), that is about 1,500 a month in rent.

What is the 40x rent rule?

Many landlords require yearly gross income of at least 40 times the monthly rent. For a 1,500 rent, that is 60,000 a year.

Should I use gross or net income?

Most rules of thumb and landlord checks use gross (pre-tax) income. If you budget from take-home pay, a lower percentage may be more comfortable.

Do my debts affect how much rent I can afford?

Yes. Existing monthly debt payments reduce how much of your income is available for rent, which the debt-based check reflects.

Related Glossary Terms

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Formula and content last reviewed: September 2026. All calculations run in your browser — nothing you enter is sent to or stored on our servers.