Tax Legislation 2026

French amortization method explained

Equipo CalculafyApril 7, 20268 min read
Financial document with mortgage interest and principal evolution

Understand how mortgage payments evolve over time and why early installments are interest-heavy.

Early yearsHigh interest

Most of payment goes to interest.

Final yearsHigh principal

Principal repayment dominates.

GoalClarity

Improve early prepayment decisions.

Key conceptFixed payment, changing composition

Less interest and more principal as months pass

What an amortization table shows

It breaks down each month into payment, interest, principal and remaining balance.

It is the most practical way to understand true loan cost.

How to read the early years

In early installments, interest share is usually much higher than principal amortization.

This happens because interest is calculated on a still-large outstanding balance.

Understanding this pattern prevents unrealistic expectations about debt reduction speed.

How to use it for better decisions

It helps estimate impact of early prepayments on term or monthly payment.

Term reduction usually saves more total interest than payment reduction.

How to compare amortization scenarios

Compare loans with different rates or terms by checking remaining balance after 5 or 10 years.

This often gives more insight than looking only at initial monthly payment.

A strong decision balances affordable payment and total interest savings.

Common table interpretation mistakes

A common mistake is assuming higher payment always means a worse loan; shorter terms can reduce total cost.

Another one is ignoring prepayment fees while simulating additional principal payments.

Always review total interest and final term before concluding.

Frequently asked questions

What is outstanding balance?

It is the amount you still owe to the lender.

Why is early interest so high?

Because outstanding balance is still large.

What is better when prepaying: lower payment or shorter term?

Shorter term usually saves more total interest.

How often should I review my amortization schedule?

At least yearly or after major financial strategy changes.

Can a fixed-rate schedule change?

Only if you prepay principal or modify contractual conditions.