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Rental Property Calculator

DealCalc helps you pressure-test a rental before you call it a buy. See monthly cash flow, cap rate, DSCR, and hold performance in one fast view.

Primary output Monthly cash flow

Primary output Cash-on-cash return

Sample scenario

See whether the rent actually leaves enough room.

Example numbers only. Verify taxes, insurance, vacancy, repairs, and financing with your market data.

Example inputs

Purchase price$246,000
Monthly rent$2,650
Monthly expenses$840
Debt service$1,118
Cash invested$61,500

Example outputs

Cash flow $692/mo

Cap rate 7.3%

DSCR 1.44

Verdict Stable hold

How the math works

Core formulas investors care about

Monthly cash flowRent - vacancy - expenses - debt
Cap rateNet operating income / purchase price
Cash-on-cashAnnual cash flow / cash invested

Why it matters

What to verify before you trust the answer

Rental math gets weak fast when taxes, insurance, vacancy, or repairs are too optimistic. The rent alone does not make the deal safe.

What DealCalc surfaces

Gross rent minus vacancy and recurring expenses
Debt service and break-even rent pressure
Cap rate, DSCR, and cash-on-cash return
Simple hold visibility for beginner-friendly underwriting

Why investors use it

The fastest way to ruin a rental is to underestimate the friction between gross rent and actual cash flow. DealCalc keeps that friction obvious.

Common questions

What should a rental property calculator include?

At minimum: rent, vacancy, recurring expenses, financing, monthly cash flow, cap rate, and a debt coverage check.

Why look at DSCR and cash flow together?

Because a deal can cover debt and still feel thin once you look at the actual monthly spread after operating reality hits.

What makes a rental look stronger?

A stronger rental usually shows room between net income and debt service, healthy cash flow, and enough yield to justify the equity tied up.

Get DealCalc

Run the hold math before you call it passive.

Join the waitlist if you want cash flow, DSCR, saved deals, cleaner reports, and a mobile workflow you can actually use in the field.

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