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Free tools

Free tools for landlords

Free landlord calculators, planners, and checklists for deals, mortgages, rent, leasing, operations, accounting controls, and AI property management workflows. Runs in your browser with no signup.
Aptoria
Browse by what you need to do
Analyze a deal
14
Buy & finance
14
Rent & lease
20
Run operations
17
Plan cash & accounting
23
Templates & checklists
4
Start with the decision, then inspect the definition and workflow
Free tools for landlords
92 reviewed
1. Price the vacancy decision
Vacancy cost calculator
2. Test the next acquisition
Rental property ROI calculator
3. Compare refinancing costs
Refinance break-even calculator
4. Build and reconcile a rent roll
Free rent roll template and analyzer
5. Review a late-fee scenario
Late fee calculator
6. Calculate rent per square foot
Rent per square foot calculator
7. See how much rent fits your salary
Rent affordability calculator by income
Vacancy cost calculator
Category
Run operations
Tool
Estimate the rent you lose for every day a unit sits empty.
Start with the decision
1. Price the vacancy decision
Run the cost of an empty day before deciding what a faster make-ready, listing change, or concession is worth.
Analyze a deal
Rental property ROI calculator
Cap rate calculator
Gross rent multiplier (GRM) calculator

Start with the decision, then inspect the definition and workflow

Price the vacancy decision

Run the cost of an empty day before deciding what a faster make-ready, listing change, or concession is worth.

Test the next acquisition

Model cash flow and return assumptions, then stress-test financing and operating inputs separately.

Compare refinancing costs

Screen cost recovery, then compare interest and closing costs over the period you expect to keep the loan.

Build and reconcile a rent roll

Keep contract rent, vacant-unit market rent, ledger activity, and bank-confirmed receipts distinct.

Review a late-fee scenario

Calculate the lease formula, then check current state and local rules before posting a charge.

Calculate rent per square foot

Divide rent by consistently measured living area, then compare similar units instead of treating one ratio as the market answer.

See how much rent fits your salary

Compare two common income guidelines for a rent budget without turning either rule of thumb into an approval decision.

Create a move-in or move-out report

Document condition room by room, add notes and dates, then print or save a signature-ready inspection report.

Estimate landlord cash flow

Separate operating income, the mortgage, vacancy, and reserves so a positive rent spread does not hide the property’s real cash result.

Support a market-rent estimate

Adjust and weight dated rental evidence, then inspect the median and range instead of relying on one listing or ratio.

Price short-term financing

Separate points, staged-draw interest, fixed charges, holding time, and exit fees before testing the project exit.

Model a HELOC draw and repayment

Compare available credit and interest-only carry with a modeled repayment payment and higher-rate scenarios.

Compare mortgage points and lender credits

Compare same-loan pricing by payment, holding-period interest, remaining principal, upfront tradeoff, and crossover month.
Browse by what you need to do

Start with the landlord question in front of you.

All 92 reviewed calculators, planners, templates, and checklists.
Tools use the numbers you enter and any assumptions stated on the page. Results are planning estimates; they do not promise savings or represent measured outcomes.

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