Rental math, done in a minute
10 free calculators for landlords and investors. Type your numbers, read the result, copy it. No sign-up.
Screening applicants
- Advanced income verification calculatorCheck whether a household’s combined income and existing debts support the rent, using an income multiple and a debt-to-income limit you choose.
- Income verification calculatorSee how an applicant’s income compares with the rent using the common income-to-rent rule.
Investment returns
- Rental property ROI calculatorEstimate monthly cash flow, cap rate, cash-on-cash return and first-year ROI for a rental property you own or plan to buy.
- Rental income tax calculatorEstimate taxable rental income after expenses, mortgage interest and straight-line depreciation, and the tax that might be due.
- Cap rate calculatorFind a property’s capitalization rate from its price, rent and operating expenses.
- Cash-on-cash return calculatorMeasure the yearly cash a property returns on the cash you actually put in.
- Rental yield calculatorCompare gross and net rental yield to see how hard a property’s price is working for you.
Rent, fees and move-ins
- Rent increase calculatorWork out a new rent from a percentage increase, or see what percentage a new rent represents.
- Late fee calculatorEstimate the late fee owed using a flat or percentage fee, a grace period and an optional daily fee.
- Prorated rent calculatorCalculate rent for a partial month when a tenant moves in or out mid-month.
Free, private, and a starting point.
Do I need an account to use the calculators?
No. Every calculator is free and works without signing up or giving an email address.
Are my numbers saved anywhere?
No. The math runs in your browser and nothing you type is stored or sent to us. Use Copy the result if you want to keep it.
Do the calculators include my state’s rules?
No. Late fee caps, rent increase limits and income requirements vary by state and city, so each calculator tells you what to check locally. The results are estimates for planning, not legal or tax advice.
Which calculator should I start with for a purchase?
The rental property ROI calculator gives cash flow, cap rate and cash-on-cash in one go. Use cap rate and rental yield to compare listings quickly.
Keep the real numbers in one place.
Rent, expenses and reports in TenantLoop come from your ledger, so you stop retyping them into calculators.
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