Free mortgage payoff calculator

Pay off your mortgage faster and save thousands in interest

See how extra payments save you years and thousands in interest. Works for one property or an entire rental portfolio.

Portfolio Payoff Snapshot

Sample Scenario

Properties

Extra/Month

$1,000

Strategy

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 handles your entire portfolio.

Multi-property planning. Manage up to 50 properties in one analysis. As you pay off each mortgage, extra payments cascade to the next one automatically.

How it works

1. Enter your properties with balance, rate, and payment.
2. Set how much extra you can pay each month.
3. Click "Run Analysis" and compare strategies.
4. See which strategy saves you the most money and time.

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.

Can I use this for just one property?

Yes. When you open the calculator, choose "Single Property" mode for a quick analysis of one mortgage. You can always switch to multi-property mode later.

What is the avalanche method?

The avalanche method directs all extra payments to the mortgage with the highest interest rate first. Once that one is paid off, the freed-up payment rolls to the next highest rate. It saves the most money overall.

What is the snowball method?

The snowball method pays off the smallest balance first for quick wins. As each mortgage is eliminated, its payment rolls into the next one, building momentum like a snowball.

Can I import my properties from a spreadsheet?

Yes. Click "Import Excel/CSV" on the Properties tab. The importer auto-detects column headers and handles most spreadsheet formats. You can also download a template to fill in.

Does this work on my phone?

Yes, the calculator is fully responsive and works on phones, tablets, and desktops. Your data is saved in your browser, so you can pick up where you left off.

How accurate are the results?

The calculations use standard amortization formulas that match what banks use. Results are based on the numbers you enter, so accuracy depends on having current balance and rate information.

Can I save or export my results?

Yes. The Export PDF tab generates a detailed report. You can also export your data as a backup file to import on another device, and the Schedule tab creates a printable payment schedule.

How do I use this tool?

Three steps: (1) Add your properties by clicking "Add Property" or importing from a spreadsheet. Each property needs a name, current balance, interest rate, and monthly payment. (2) Go to the Strategy tab and enter how much extra you can pay each month above your minimums. (3) Click "Run Analysis" to compare all 7 payoff strategies and see which saves you the most money and time.

What are the 7 payoff strategies?

Avalanche: Targets the highest interest rate first, saving the most money overall. Snowball: Pays off the smallest balance first for quick motivational wins. Highest Payment: Targets the biggest monthly payment first, freeing up cash flow fastest. Shortest Term: Focuses on the mortgage closest to payoff for quick portfolio reduction. Highest Cash Flow: Prioritizes the best-earning rental so you can reinvest income sooner. Even Spread: Splits extra payments evenly across all mortgages. Custom Priority: You choose the payoff order yourself.

Any tips for importing a spreadsheet?

The importer works with most Excel and CSV formats. It auto-detects column headers and handles various layouts. Your file should have columns for Property Name, Current Balance, Interest Rate, and Monthly Payment. Optional columns include Property Value, Loan Term, Rental Income, and Expenses. It automatically skips paid-off properties, HOA rows, and non-mortgage items. You can download a template from the Export & Data tab to get started.

Ready to optimize your payoff strategy?

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

Single Property Payoff Calculator

See how extra payments can save you years and thousands in interest.

Your Mortgage Details

Property Name

Current Balance ($) *

Interest Rate (%) *

Monthly Payment ($) *

Original Loan Amount ($)

Loan Term (years)

Extra Monthly Payment

How much extra can you pay each month above your required payment?

Extra Payment ($/month)

Mortgage Payoff Calculator

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

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No properties added yet. Add your properties one at a time, or import from a spreadsheet.

Want to see how it works first?

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

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.

Extra Amount Above Minimums ($/month) This is on top of the minimum payments you already make on each property.

Your Portfolio Net Cash Flow 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.

Pay off everything in (years)

Select Strategies to Compare

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

📊

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

Refinance Scenario Planner

Compare your current mortgage terms against a potential refinance.

Export Portfolio Report

Generate a polished PDF report to share with partners, accountants, or for your records.

Select sections to include:

Portfolio Summary (properties, balances, rates) Strategy Results (winner, savings) Cash Flow Analysis Equity Summary Payoff Timeline Full Amortization Schedule

Report Title

Prepared For

Report opens in a new window for printing or saving as PDF.

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.

💾

Your data is automatically saved in this browser. It will be here next time you visit, no account needed. Just don't clear your browsing data.

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Help Us Improve PayoffRentals.com

Got an idea for a new feature, found a bug, or have feedback? We'd love to hear from you!

Pay off your mortgage faster and save thousands in interest

Choose Your Calculator

Not just another mortgage calculator

How it works

Frequently Asked Questions

Ready to optimize your payoff strategy?

Single Property Payoff Calculator

Your Mortgage Details

Extra Monthly Payment

Your Payoff Results

Mortgage Payoff Calculator

Extra Monthly Payment

🎯 Goal Calculator

Select Strategies to Compare

Custom Priority Order

Cash Flow Analysis −

Equity Tracker −

Payment Schedule −

Refinance Scenario Planner

Current Loan

New Loan Terms

What If I Sell?

Export Portfolio Report

Select sections to include:

Save & Load Your Data

Import from Excel or CSV

Clear All Data

Help Us Improve PayoffRentals.com

Pay off your mortgage faster and save thousands in interest

Choose Your Calculator

Not just another mortgage calculator

How it works

Frequently Asked Questions

Ready to optimize your payoff strategy?

Single Property Payoff Calculator

Your Mortgage Details

Extra Monthly Payment

Your Payoff Results

Mortgage Payoff Calculator

Extra Monthly Payment

🎯 Goal Calculator

Select Strategies to Compare

Custom Priority Order

Cash Flow Analysis −

Equity Tracker −

Payment Schedule −

Refinance Scenario Planner

Current Loan

New Loan Terms

What If I Sell?

Export Portfolio Report

Select sections to include:

Save & Load Your Data

Import from Excel or CSV

Clear All Data

Add Property

Property Details

Mortgage Details

Monthly Cash Flow (optional)

Help Us Improve PayoffRentals.com