Free Amortization Calculator — The First 5 Years Reality Check

Last updated: April 17, 2026

MoneyMath's amortization calculator shows how each payment is split between principal and interest, with special focus on how little equity many borrowers build in the first five years.

Free to useRuns in your browserTransparent assumptions

Free amortization calculator with first-5-years equity reality check. See the shocking split between principal and interest, the crossover year, and what you need to break even if you sell in 5 years.

Use the Amortization Calculator to compare realistic scenarios before making a money, health, or planning decision.

Adjust the inputs and review the result breakdown so you can see which assumptions matter most.

How to use this calculator

Step 1Enter your starting information. Add the core inputs requested by the Amortization Calculator, such as amounts, dates, rates, income, weight, or other scenario details.
Step 2Review the calculated result. Read the headline answer first, then scan the supporting breakdown, chart, or comparison table.
Step 3Compare another scenario. Change one input at a time to understand what drives the result and which option is most realistic.

Formula, Sources & Assumptions

Assumptions

Results are estimates for planning and education.
Actual costs, taxes, rates, or outcomes may differ based on personal circumstances and updated rules.