Free Mortgage Refinance Calculator Spreadsheet Template for Google Sheets & Excel
Five figures in - balance, current payment, new rate, new term and closing costs - with the inputs down the left of one sheet and the results down the right. The Free Mortgage Refinance Calculator spreadsheet template calculates the new payment from the quoted rate and term, sets the monthly difference against the payment you already make, and gives the break-even in months on the closing costs. Google Sheets or Excel, one file. No macros, no VBA, no sign-up.
The FinancialAha Free Mortgage Refinance Calculator Spreadsheet Template is a one-sheet workbook for Google Sheets and Excel, with a How to Use guide on a second tab. It works as a Free Mortgage Refinance Calculator Excel template and a Free Mortgage Refinance Calculator Google Sheets template from the same download. Five figures go in - what you owe, what you pay now, the rate and term on offer, and the closing costs - and this Free Mortgage Refinance Calculator spreadsheet template returns the new payment, the monthly difference, and how many months of that difference it takes to cover the costs. No macros, no VBA, no sign-up.
Inside the workbook
What's inside the FinancialAha Free Mortgage Refinance Calculator spreadsheet template
The FinancialAha Free Mortgage Refinance Calculator Spreadsheet Template runs on a single working sheet, with the instructions on a tab of their own. It works in both Microsoft Excel and Google Sheets and here is what the Free Mortgage Refinance Calculator spreadsheet holds.
01of 01
Refinance
Inputs on the left, results on the right, and nothing in between to fill in. The inputs are what you still owe, what you pay each month now, the rate you have been quoted, the term that quote runs over, and what the lender wants in closing costs. The results are the payment that quote produces, the difference between it and the payment you make today, and the number of months of that difference it takes to cover the closing costs.
The current side of the comparison is your existing payment rather than your existing rate, which is deliberate: the payment is the number on your statement, and it already carries whatever rate and term you signed. Where the new payment is not lower than the old one, the break-even cell says so in words rather than returning a negative month count - a refinance that costs more per month never recovers anything, and that is an answer rather than an error.
One thing the sheet leaves to you: the term. A quote written over thirty years against a mortgage with twenty-two left will lower the payment partly by stretching the loan, and this build carries no total-interest figure to show what that costs across the full term. Entering the years you have left, rather than the years on offer, is what keeps the monthly comparison an honest one.
Refinance
Included guide
How to Use
A step-by-step guide on its own tab, covering how to replace the sample values, how the results recalculate, and how to change the currency. Because it ships inside the file, the instructions travel with the template wherever it is opened.
Works in both Google Sheets and Excel
Free Mortgage Refinance Calculator Spreadsheet template for Google Sheets
Upload the Free Mortgage Refinance Calculator Spreadsheet Template to Drive, right-click it, and choose "Open with Google Sheets". This Free Mortgage Refinance Calculator Google Sheets template needs no conversion step and nothing gets rewritten on the way in - the results recalculate exactly as they do in Excel.
Free Mortgage Refinance Calculator Google Sheets template setup
A shared copy of the Free Mortgage Refinance Calculator Google Sheets template is useful while quotes are coming in, because a refinance is often a joint decision and the numbers arrive to whoever made the call. Sheets version history covers a figure typed over.
Running the Free Mortgage Refinance Calculator Google Sheet
The Free Mortgage Refinance Calculator Google Sheet is worth keeping open while you gather quotes rather than opening once at the end. Each quote is five figures, and the break-even line moves the moment the closing costs change.
Free Mortgage Refinance Calculator Spreadsheet template for Excel
The Free Mortgage Refinance Calculator spreadsheet Excel download is a plain .xlsx. Excel opens this Free Mortgage Refinance Calculator Excel template directly, with no import step and no compatibility prompt, and every result updates the moment an input changes. There are no macros and no VBA in the file, so it opens without a security warning.
The same Free Mortgage Refinance Calculator Excel template opens in Excel on Windows, Excel on Mac, and Excel for the web. It is also the identical file you would upload to Drive, so there is no separate Free Mortgage Refinance Calculator spreadsheet download to choose between.
The Free Mortgage Refinance Calculator spreadsheet Excel file carries no macros and no VBA, so Excel opens it without a trust prompt.
Opening the Free Mortgage Refinance Calculator spreadsheet Excel file
Nothing in the Free Mortgage Refinance Calculator Excel template is version-specific, so this Free Mortgage Refinance Calculator spreadsheet Excel workbook behaves identically in Excel on Windows, Excel on Mac, and older builds.
The FinancialAha Free Mortgage Refinance Calculator Spreadsheet Template answers the monthly question: what the new payment would be, what it saves each month, and how long that saving takes to cover the costs. The Essentials Mortgage Refinance Calculator Spreadsheet Template for Google Sheets and Excel answers the whole-term one as well. It takes the current rate and the years remaining rather than just the payment, computes both payments itself, and reports the total interest each way, the interest saved, the total cost of each loan with closing costs included, and the net saving after them. It carries a 360-month schedule comparing the two balances side by side and a chart of the two balances falling, which is where a lower payment over a longer term stops looking like a straight saving.
Notes on working in the Free Mortgage Refinance Calculator spreadsheet template
The current side is your existing payment rather than your existing rate, so it comes straight off a statement.
The new payment is built from the balance you enter over the new term, so a longer term lowers it partly by stretching the loan.
Break-even is the closing costs divided by the monthly saving, expressed in months.
Where the new payment is not lower, the break-even cell says there is no monthly saving rather than returning a negative number.
The comparison stops at the monthly payment. What each loan costs in interest across its life is on the Essentials build.
The dropdown beside the title relabels the balance, both payments and the closing costs. It changes the label and nothing else.
How the Mortgage Refinance Calculator template works
The Free Mortgage Refinance Calculator Spreadsheet Template takes five figures - what you still owe, what you pay each month now, the rate and term on the quote, and the closing costs - and returns the payment that quote produces, the monthly difference, and how many months of that difference it takes to cover the costs. The current side of the comparison is your existing payment rather than your existing rate, which is the number on your statement and already carries whatever you signed. Where the new payment is not lower, the break-even cell says there is no monthly saving rather than returning a negative month count. The term is yours to set, and worth setting deliberately: a quote written over thirty years against a mortgage with twenty-two left lowers the payment partly by stretching the loan, and this build carries no total-interest figure to show what that costs.
When this template helps
01
A lender has quoted you a rate and you want the monthly difference.
02
You are comparing several quotes and the closing costs differ more than the rates.
03
You want to know how long the closing costs take to come back.
04
You want a calculation you can save and revisit, not a one-shot web form.
Tips to get the most out of it
Entering the years actually remaining, rather than the term written on the quote, keeps a rate change from reading as a term extension.
Closing costs move further between quotes than rates do, and they are the whole numerator of the break-even figure.
Running one quote twice - once at the remaining term, once at the offered term - separates the saving that comes from the rate from the saving that comes from the stretch.
Common mistakes to avoid
Reading the monthly saving as the whole answer when the new term is longer than the years you have left.
Entering the term on offer rather than the years remaining, which mixes a rate change with a term extension.
Leaving closing costs out. They are the entire numerator of the break-even figure.
Reading break-even as the month the refinance comes out ahead overall. It is the month the closing costs are recovered from the monthly saving alone.
How to Use the Free Mortgage Refinance Calculator Spreadsheet Template
1
Enter what you owe
The balance outstanding, and the payment you make on it today.
2
Add the quote
The rate offered and the term it runs over.
3
Add the costs
What the lender charges to do the deal.
4
Read the break-even
How many months of the saving it takes to cover them.
We use Claude AI to draft each template, after a deep research. Then our team steps in. We refine the layout, stress-test every formula, fix edge cases, and polish the design until it feels like something we would actually use ourselves. The AI gets us 80% there. The last 20% is all human judgment.
Excel
Sheets
No signup
Download instantly, no email required
Formula-driven
All calculations update automatically
Dual compatible
Works in Excel and Google Sheets
Sample data included
See the template in action right away
Frequently Asked Questions
What is the difference between the free and Essentials Free Mortgage Refinance Calculator spreadsheet template?
Free is a single-sheet starter template with sample data and a How to Use guide. Essentials ($19) is the fuller build - more capacity, more detail, and more worked out for you rather than typed. This template has no Ultimate build. What each tier holds differs by template - the comparison table on every template page lists it exactly.
Which Free Mortgage Refinance Calculator spreadsheet template should I download?
Upgrade to Essentials if you want a dashboard with charts, more categories, larger capacity, and a more polished spreadsheet for ongoing use. The Free version is a good fit for one-off planning or trying out the layout.
Can I upgrade the Free Mortgage Refinance Calculator spreadsheet template later?
Essentials is a one-time $19 purchase with no subscription. It typically adds a full dashboard, 30-50% more categories or rows than the Free version, and richer formulas. Most buyers upgrade after using the Free version for a few weeks and hitting its limits.
Is the FinancialAha Free Mortgage Refinance Calculator Spreadsheet Template a Google Sheets template?
Yes. Upload the file to Drive and choose "Open with Google Sheets". Nothing needs rewriting in the Free Mortgage Refinance Calculator Google Sheets template, and the results recalculate exactly as they do in Excel.
Is the FinancialAha Free Mortgage Refinance Calculator Spreadsheet Template an Excel template?
Yes. The download is a plain .xlsx, so the Free Mortgage Refinance Calculator Excel template opens directly in Excel with no import step. There are no macros and no VBA.
Will the FinancialAha Free Mortgage Refinance Calculator spreadsheet Excel file open in older versions of Excel?
Yes. The Free Mortgage Refinance Calculator spreadsheet Excel workbook ships as a plain .xlsx, so it opens identically in current Excel and in builds that predate dynamic arrays.
Why does the Free Mortgage Refinance Calculator spreadsheet ask for my current payment rather than my current rate?
Because the payment is the figure on your statement, and it already carries whatever rate and term you signed. It keeps the comparison to one number you can check rather than two you have to look up.
What happens in the Free Mortgage Refinance Calculator spreadsheet if the new payment is higher than the old one?
The break-even cell says there is no monthly saving rather than returning a negative month count. A refinance that costs more each month never recovers its closing costs from the monthly difference.
Does the break-even figure in the Free Mortgage Refinance Calculator spreadsheet account for the longer term?
No. It covers the closing costs from the monthly saving and stops there. A quote written over thirty years against a mortgage with twenty-two left lowers the payment partly by stretching the loan, and the interest that costs across the full term is on the Essentials build.
Is the Free Mortgage Refinance Calculator spreadsheet template safe to download?
Yes. No macros, no sign-up, no tracking. The file is a plain .xlsx that opens directly in Excel or Google Sheets.
How do I open the Free Mortgage Refinance Calculator spreadsheet template in Google Sheets?
Upload the .xlsx file to Google Drive, then open it with Google Sheets. All formulas and formatting will be preserved.
Can I use the Free Mortgage Refinance Calculator spreadsheet template for commercial work?
All free templates are released under CC BY 4.0 (Creative Commons Attribution). You can use, modify, and share them freely - including for commercial purposes - as long as you credit FinancialAha.com. They are provided as-is and do not constitute financial advice.
