Prosper Realty Investment
ROI Calculator

Estimate the true return
of a US property.

An honest first look at cap rate, cash-on-cash return, and monthly cash flow. Adjust the numbers below — results update as you type.

Inputs

The property

Monthly income & costs
The numbers

Estimated return

Down payment & closing

Assumes 3% closing costs

Monthly mortgage payment

Principal + interest

Monthly net cash flow

After expenses, vacancy, mortgage

Cap rate

Net operating income ÷ price

Cash-on-cash return

Annual cash flow ÷ total cash invested

This is a preliminary illustration. Every deal we underwrite together uses real quotes — real taxes, real insurance bids, real lender term sheets. Tell us about the property →

What this does (and does not) capture

The honest footnotes.

Included

Mortgage payment, operating costs you enter, vacancy allowance, and cap-rate math. Standard 3% closing-cost estimate added to cash needed.

Not included

Appreciation, property-tax reassessment, capital-improvement reserves, tenant turnover costs, depreciation, and income taxes. These matter and change your real outcome materially.

Why we still share it

A quick filter. If these numbers don't work on a clean estimate, the real deal almost never does either. Use it to separate "worth a real look" from "move on."

Underwrite it together

Send us the listing. We'll come back with real numbers.

Schedule a private call →