Analyze a rental property before you buy.
Turn any listing into cash flow, returns, a fair price, and a clear buy, negotiate, investigate, or pass verdict — with transparent assumptions and no signup.
Could work — at a lower price. Targets are met at about $219,176, roughly 7% below asking.
One tool, the whole decision
Most calculators answer one number. RentalRundown joins the finances, the fair price, and the risks into a single verdict you can act on.
Cash flow
Monthly and annual cash flow after a full, honest allowance for vacancy, maintenance, and CapEx.
Returns
Cap rate, cash-on-cash, DSCR, and a multi-year IRR — the whole return, not just one number.
The most you should pay
Work backwards from your targets to a maximum offer price — the figure to bring to a negotiation.
A clear verdict
A rule-based buy / negotiate / investigate / pass call, stress-tested against a conservative case.
Editable assumptions
Every input is yours to change. Nothing is hidden, and the same inputs always give the same answer.
Free, no signup
The full analysis — verdict and max offer included — with no account, no download, no paywall.
A full analysis in under a minute
Enter the numbers
Purchase price, rent, and your financing and expenses — or start from our sensible defaults.
See the full analysis
Cash flow, returns, break-even, and a year-by-year projection update instantly as you type.
Get the verdict
A buy/pass call plus the maximum price that still meets your targets. Then go make your offer.
Free rental property calculators
Each is a focused, no-signup tool built on the same transparent engine.
Rental Property Calculator
Start hereThe complete analysis with the buy/pass verdict.
OpenROI Calculator
Total return and IRR, broken down by source.
OpenCap Rate Calculator
NOI-to-value, and the price a target cap rate supports.
OpenCash Flow Calculator
The full monthly waterfall and break-even rent.
OpenMaximum Offer Price
The most you should pay to hit your targets.
OpenNumbers you can trust, assumptions you can see
The financial results come from deterministic formulas — never a black box and never a guess. Every estimate shows its source, defaults are clearly flagged, and you can override anything. The verdict is a documented rule, so you always know why.
Why a verdict, not just numbers?
A page full of metrics still leaves you asking "so… should I buy it?" RentalRundown compares the results against your targets and a conservative stress case, then makes the call — buy, negotiate, investigate, or pass — with the reasons in plain language.
Try it on your propertyFrequently asked questions
Is RentalRundown really free?
Yes. The complete analysis — cash flow, returns, the verdict, and the maximum offer price — is free with no account, no download, and no paywall. Most full-featured analysis software charges a subscription; this doesn't.
Do I need to create an account?
No. You can analyze as many properties as you like without signing up. Nothing you enter is required to leave your browser.
How accurate is the analysis?
The math is exact and deterministic — the same inputs always produce the same results, using standard real-estate formulas. Accuracy then depends on your inputs: realistic rent, taxes, insurance, and vacancy. Every assumption is visible and editable so you can match your local reality, and estimated defaults are flagged.
Can I use it on a property I found on a listing site?
Yes. Grab the asking price and rent estimate from any listing, enter them along with your financing, and you'll have a full analysis and a verdict in under a minute.
Is this financial advice?
No. RentalRundown provides educational estimates to help you think through a decision. Verify every figure and consult licensed professionals before making an offer.
Found a property? Run the numbers.
A full analysis and a verdict, free, in under a minute.