Built for rental property owners

Find the smartest payoff strategy for your rental properties

Compare payment strategies, test extra payments, and see exactly how much interest and time you can save across your entire portfolio.

Compare payoff scenarios instantly
Track interest and time saved per property
Built for portfolios with multiple properties
Clear payoff comparisons. No clutter. No guesswork.
Portfolio Payoff Snapshot
Sample Scenario
4
$1,000
Highest Rate
Save $84,320
and pay off 6.2 years sooner
Best outcome: Highest-interest-first strategy
Current Plan
Payoff 24.5 years
Interest $387,200
Monthly $6,840
Optimized Plan
Payoff 18.3 years
Interest $302,880
Monthly $7,840

Not just another mortgage calculator

Most calculators handle one property. PayoffRentals was built from the ground up for investors managing multiple rental mortgages.

Multi-property planning

Manage up to 50 rental properties in a single analysis. See how extra payments cascade from one mortgage to the next as each is eliminated.

Extra monthly payment

Enter any extra amount you can put toward your mortgages each month above your minimums, and instantly see how it shortens your payoff timeline and slashes total interest.

Goal calculator

Want everything paid off in 10 years? 5 years? Pick your target and the calculator tells you exactly how much you need to pay each month to hit that goal.

7-strategy comparison

Compare avalanche, snowball, cash-flow, custom order, and more strategies side by side. The winning strategy is highlighted automatically with total savings.

How it works

Four simple steps to find the optimal payoff path for your rental portfolio.

1

Enter your properties

Add each rental with its balance, rate, payment, and optional income details.

2

Set your extra budget

Tell us how much extra you can put toward mortgages each month above minimums.

3

Compare strategies

Select which payoff strategies to compare: avalanche, snowball, custom, and more.

4

Choose the best path

See the winner instantly with interest saved, time saved, and property-by-property detail.

Payoff strategies compared

Every investor's situation is different. Test these strategies against your actual numbers to find the best fit.

Highest Interest First

Directs all extra payments to the property with the highest interest rate. Mathematically optimal for minimizing total interest paid.

Best for: Maximum interest savings

Smallest Balance First

Pays off the smallest mortgage first for quick wins. Frees up cash flow sooner and builds momentum as payments cascade forward.

Best for: Faster cash-flow relief

Custom Priority

You choose the order. Useful when specific properties have strategic importance beyond pure financial optimization.

Best for: Strategic flexibility

Built for rental property owners

Whether you own two properties or fifty, this tool helps you see the clearest path to mortgage freedom.

For growing portfolios

Owners with 2 to 10 rental properties who want to be strategic about where extra cash goes each month. See which property to target first and why.

For payoff planning

Investors deciding whether to accelerate one loan aggressively or spread payments across the portfolio. Compare both approaches with real numbers.

Frequently asked questions

Is this really free?
Yes, completely free. There are no hidden charges, no premium tier, and no login required. Your data stays in your browser.
How is this different from a regular mortgage calculator?
Most mortgage calculators handle one property at a time. PayoffRentals analyzes your entire portfolio together, showing how extra payments cascade from one property to the next as each is paid off.
What is the "Set Payment To" column?
It shows the exact monthly payment to set for each property based on the winning strategy. As properties get paid off, the extra money rolls to the next target, so these amounts update over time.
Is my data private?
All data is stored locally in your browser. Nothing is sent to any server. You can export your data as a backup file and import it on another device.
Which payoff strategy is best?
It depends on your goals. Highest-interest-first saves the most money. Smallest-balance-first frees up cash flow sooner. The tool compares them with your actual numbers so you can see the difference.

Ready to optimize your payoff strategy?

Enter your properties, compare strategies, and see exactly how much interest and time you can save.

Mortgage Payoff Calculator

Add your properties, choose strategies, and run the analysis.

0 properties Free: 5 of 5 remaining
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Importing a spreadsheet? Your file should have columns for: Property Name, Current Balance, Interest Rate, and Monthly Payment. Optional columns: Property Value, Loan Term, Rental Income, Expenses. Column names are matched automatically, so most formats work. Not sure? Click Download Template above to get a sample CSV you can fill in.
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Your data is not saved. All property data you enter will be permanently erased when you close this page. We do not store any of your information on our servers. Upgrade to Pro to save your work between sessions.
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No properties added yet. Click "+ Add Property" above to enter your rentals one at a time, or "Import Excel/CSV" to load from a spreadsheet.

Want to see how it works first?

Loads a demo portfolio with 8 rentals so you can explore all the features.

How to Use This Tool

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Step 1: Add Your Properties

Click "+ Add Property" to enter properties one at a time, or click "Import Excel/CSV" to load them all from a spreadsheet. For each property, you need at minimum: Name, Current Balance, Interest Rate, and Monthly Payment. You can also enter rental income and expenses to track cash flow.

Step 2: Set Your Extra Payment

Go to the "Strategy" tab and enter how much extra money you can put toward mortgages each month (above and beyond your normal minimum payments). This is the money that accelerates your payoff.

Step 3: Run the Analysis

Click "Run Analysis" on the Strategy tab. The tool automatically tests all 7 payoff strategies and tells you which one pays off everything the fastest and saves the most interest. Results include charts, rankings, and month-by-month amortization schedules.

Importing Tips

The importer works with most spreadsheet formats. It auto-detects column headers and handles special layouts (like Robert's "Total Debt" spreadsheet). It skips paid-off properties, HOA rows, vehicles, and non-mortgage items automatically. Click "Download Template" to get a sample CSV you can fill in.

The 7 Strategies Explained:
Avalanche: Highest interest rate first (saves the most money)
Snowball: Smallest balance first (quick wins for motivation)
Highest Payment: Biggest monthly payment first (frees up cash flow fastest)
Shortest Term: Closest to payoff first (quick portfolio reduction)
Highest Cash Flow: Best-earning rental first (reinvest income sooner)
Even Spread: Extra split evenly across all mortgages
Custom Priority: You choose the payoff order

Extra Monthly Payment

How much extra can you put toward your mortgages each month above and beyond all your minimum required payments? This is the additional money that will be strategically directed to pay down your properties faster.

This is on top of the minimum payments you already make on each property.
This is the total money left over each month after collecting rent, paying mortgages, and covering expenses on all your properties. If you entered income and expenses on the Properties tab, this number is calculated automatically.

Tip: Not sure what to enter? Click the button below to use your portfolio net cash flow as your extra payment amount.

🎯 Goal Calculator

Want everything paid off by a certain year? Enter your target and I will tell you how much extra per month you need.

Select Strategies to Compare

Choose one or more strategies. The results tab will compare them side by side.

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Run an analysis from the Strategy tab to see results here.

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Run an analysis first, then view detailed month-by-month schedules here.

Save & Load Your Data

Your data is automatically saved in this browser. You can also export to a file for backup or to use on another device.

Import from Excel or CSV

Import properties from a spreadsheet. Your file should have columns for the property details. The importer is flexible and will try to match common column names automatically.

Required columns: Property Name, Current Balance, Interest Rate, Monthly Payment
Optional columns: Property Value, Original Loan, Loan Term, Start Date, Rental Income, Expenses, Escrow

Clear All Data

This will remove all properties and settings. This cannot be undone.

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For serious rental property investors

$19.99 / month

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