Full amortization schedule with annual breakdowns and principal vs interest pie chart
Click a year to expand/collapse monthly details
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This amortization calculator generates a complete loan repayment schedule showing each payment's split between principal and interest. The interactive yearly breakdowns and pie chart help you visualize how your loan balance decreases over time. The interactive yearly breakdowns let you expand each year to see monthly details, and the pie chart provides a visual summary of total principal versus interest. This is an essential tool for anyone who wants to truly understand how their loan works over its full term.
The calculator applies the standard amortization formula, then iteratively computes the principal and interest portions for each payment period.
Amortization is the process of spreading out a loan into fixed payments over time. Each payment covers interest charges with the remainder reducing the principal balance.
In the early years of a loan, the principal balance is highest, so interest charges are larger. As the principal decreases, a greater portion of each payment goes toward principal.
Amortization spreads payments evenly over the loan term, with each payment covering interest first and principal second. Simple interest loans calculate interest on the daily balance, which can result in different total costs.
By reviewing your amortization schedule, you can identify when the interest portion drops significantly and plan extra payments to maximize principal reduction when it is most effective.
In early years, a larger portion of each payment goes toward interest because the principal balance is highest. As the principal decreases over time, more of each payment goes toward principal.
If you sell before the loan is paid off, the remaining balance must be paid from the sale proceeds. Your amortization schedule shows exactly how much principal remains at any point.