Equal principal and interest
The same modeled amount is paid each month. Early payments contain more interest and later payments contain more principal.
Estimate a fixed-rate loan using equal principal and interest or equal-principal repayment with the loan amount, whole-year term and annual rate you enter.
This is a mathematical planning estimate, not a current-rate quote or approval.
The rate remains fixed for the whole modeled term. Actual contracts may change rates, rounding and payment dates.
Sources: Jinan Housing Provident Fund Center repayment-method guidance and People’s Bank repayment formulas.
The same modeled amount is paid each month. Early payments contain more interest and later payments contain more principal.
The same principal amount is repaid each month while interest declines with the outstanding balance. The first payment is highest, the last is lowest, and total interest is lower than equal principal and interest under the same fixed inputs.
Current official housing provident-fund guidance recognizes equal principal and interest and equal-principal methods for loans longer than one year. This calculator accepts a user-entered rate and does not claim a current national mortgage rate.
Compare a remaining loan, recurring extra payments, and a hypothetical refinance using rates and costs you enter.
| Scenario | Scheduled monthly payment | Payoff | Total interest | Upfront cost/cash | Difference vs baseline interest |
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The on-screen table shows the first 24 months and final month. CSV export includes every simulated month.
| Month | Payment | Principal | Interest | Balance |
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Consumer authority mortgage reference for this country · Method reviewed 2026-07-30.