Mortgage maths, by a finance professional
Keep the coffee. Buy a second one for your mortgage.
One $5 coffee a day — $150 a month — paid into a new $600k home loan takes roughly 3 years off it and saves close to $96,000 in interest. Your loan is different. Check yours in 20 seconds.
Your coffee, your loan
Change any number — results update as you type.
sooner
less interest
Your offset money stays yours. While it sits there, the bank charges interest on a smaller loan amount. Your repayment doesn't change, so more of it pays off the loan and you finish early.
Enter a loan balance, rate and time left to see your result.
The 29 September rate rise added about $91 a month on a $600k loan. Three dollars a day wins back two years.
$91 a month extra on a new $600k, 30-year loan at 6.49% pays it off about 2.0 years sooner and saves about $61,500 in interest. Estimate only.
The full tracker
A calculator tells you once. The tracker keeps score.
The bank's calculator stops at the number. The Folio Mortgage Payoff Tracker is an Excel and Google Sheets workbook that follows your real loan, month by month. Have a look inside.
$10 — the price of two coffees.
One payment, no subscription, no bank login. Excel and Google Sheets, plain-English setup guide included.
Email me my numbers
Get your result plus a one-page guide: how to set up an extra repayment with your bank in five minutes.
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Who built this
Not financial advice. Just the maths your bank doesn't show you.
I'm Andy, based in Melbourne. I've spent 15+ years as a finance professional and finance leader, building financial models and reporting inside some of the world's largest organisations.
Folio is the same maths, made for households. No jargon, no lectures about your coffee.