Interest-Only Calculator

Calculate your interest-only loan payments and compare with standard amortizing payments.

Interest-Only Loan Payment Calculator

See how much you can save with interest-only payments and understand the long-term costs

Loan Details

Total loan principal
Annual interest rate
Total loan duration
Years paying interest only

Additional Options

Optional principal payment during IO period
Type of loan

Understanding Interest-Only Loans

What is Interest-Only?

An interest-only loan allows you to pay just the interest for a set period, typically 5-10 years. Your payments are lower because you're not paying down principal. After this period, you pay both principal and interest.

How It Works

  • IO Period: Pay interest only (lower payment)
  • After IO: Pay principal + interest
  • Remaining balance amortized over shorter term
  • Results in higher payments after IO period

Best For

  • Borrowers expecting income growth
  • Short-term property owners
  • Real estate investors
  • Self-employed with variable income
  • Those with disciplined savings habits

Important Considerations

  • Plan for payment increase after IO
  • Consider making voluntary principal payments
  • Understand refinancing options
  • Monitor home value vs loan balance
  • Not ideal for long-term homeownership