Free Rental Property Investor Tools

Decision tools for every stage of owning a rental, from comparing deals to deciding when and how to sell. No sign-up, no sales calls: run your numbers and see the trade-offs.

Which tool fits your decision?

Rental property decisions fall into four stages, and each stage has a different question that matters most. The tools are organised around those questions rather than around formulas, so start with the decision in front of you.

Buying: is this deal worth it, and how should I finance it?

Before you make an offer, compare candidate properties on the same basis. The comparison hub lines up cash flow, cap rate and cash-on-cash return so a cheaper property with high expenses can’t hide behind a low price. Then use the financing calculator to see how the down payment, rate and loan type change monthly cash flow and the return on your cash. Leverage raises returns when a property earns more than the loan costs and magnifies losses when it doesn’t, so it is worth testing a higher rate before you commit. For a single deal in depth, the property investment analyzer and the ROI calculator cover the full set of return metrics.

Improving: will the renovation pay for itself?

Renovations are where budgets slip. The rehab estimator builds a line-item budget with a contingency and compares it with the after-repair value, which is the number a lender or a buyer will care about. If you plan to refinance after the work, pair it with the BRRRR calculator.

Owning: am I keeping as much of the income as I can?

Most of the return on a rental is decided by expenses and taxes. The tax optimizer estimates depreciation and deductible expenses, and the expense ratio calculator shows whether your operating costs are in a sensible range. Depreciation lowers your tax bill every year, but it also creates recapture when you sell, which is why the exit tool below matters even if selling is years away.

Exiting: keep, sell, exchange, or hold for heirs?

This is the decision with the most money at stake and the least neutral advice. The keep or sell rental property calculator compares six options on one measure, after-tax wealth, and shows the appreciation rate at which keeping and selling break even. It also handles former homes that became rentals, where the home-sale exclusion can save a large amount if you sell in time. If a 1031 exchange is on the table, the 1031 exchange calculator checks whether a specific replacement property fully defers the tax.

How to get reliable answers from any calculator

  • Use real expenses, not the seller’s. Pull the actual tax bill, an insurance quote and a realistic repair and capital reserve. Listing pro formas routinely leave out vacancy, management and capital expenditures.
  • Test more than one scenario. Change the rate, rent and appreciation by a point or two and see whether the answer changes. A decision that only works under one set of assumptions is fragile.
  • Count your time. Self-managing saves the management fee but costs hours. Several tools let you include a management fee so you can compare like with like.
  • Check the tax assumptions. For anything involving a sale, your actual depreciation figure and state tax rate move the result more than almost anything else.

Looking for checklists, templates and state-by-state legal summaries instead? Browse all free resources, including the state legal guides and landlord cheat sheets.

Questions about the tools

Are these tools really free?

Yes. Every tool on this page is free and works without an account. The calculators run in your browser, and nothing you type is sent to us unless you choose to request a report or an introduction.

Which tool should I start with?

Start with the decision in front of you. If you are deciding whether to keep or sell a property you own, use the keep or sell calculator. If you are choosing between properties to buy, use the comparison hub and then the financing calculator. If you are planning work on a property, use the rehab estimator, and use the tax optimizer to understand what you can deduct while you own it.

How accurate are the results?

Each tool applies standard formulas and, where relevant, current federal tax rules to the numbers you enter, and explains its assumptions on the page. Results are only as good as your inputs, and none of the tools replace a CPA, attorney or lender. Use them to narrow your options and prepare better questions.

Do the tools account for taxes?

The keep or sell calculator models federal taxes in detail, including depreciation recapture, long-term capital gains brackets, the 3.8% net investment income tax, the home-sale exclusion and a flat state rate. The tax optimizer estimates annual deductions and depreciation. The deal-comparison and financing tools work on a pre-tax basis.

Can I share my results with my CPA or partner?

Yes. The keep or sell calculator can copy a link that reopens your exact scenario and can produce a printable report with questions for your CPA. For the other tools, use your browser to print or save the page as a PDF.