About this Rent Calculator
Finding an apartment starts with a budget. Landlords usually apply strict income rules before approving an application. This calculator helps you determine your maximum rent based on industry-standard ratios.
How to use this calculator
- Enter your Annual Gross Income (before tax).
- Enter your total Monthly Debts (Loan payments, credit card minimums).
- See your recommended rent limit.
Accuracy and testing
Review formula sources, default test cases, assumptions, unit handling, rounding rules, and changelog for this calculator.
How this calculator works
1. 30% Rule: Housing costs should not exceed 30% of your gross monthly income. We adjust this downward if you have high debts.
2. 40x Rule: Annual Income / 40. This is common in cities like NYC (e.g., earn $100k to rent $2,500).
Inputs explained
Annual Gross Income
Your total yearly salary before taxes.
Monthly Debts
Payments for student loans, car notes, and credit cards. High debt reduces your ability to pay rent.
Understanding your results
The Max Recommended Rent is the safer, debt-adjusted number. The 40x Rule Limit is the absolute maximum a strict landlord might approve based on income alone.
Example scenarios
Standard Case
Income $60,000. Debt $0. Max Rent = $1,500 (30% rule).
High Debt
Income $60,000. Debt $500/mo. Max Rent reduces to $1,000 to keep your budget safe.
Key Features
- 30% Income Rule
- 40x Rent Rule
- Debt Adjustment
Things to Keep in Mind
Does not account for upfront costs like Security Deposit, Broker Fee, or First/Last month rent.
Tips & Best Practices
- Don't forget utilities (electricity, internet) which can add $100-$200/mo on top of rent.
- If you have a roommate, combine your incomes to see what total rent you can afford together.
Glossary of Terms
- Gross Income
- Total earnings before taxes and deductions.
- Rent Burdened
- Spending more than 30% of income on housing.