Annual Interest Rate
An annual interest rate states the cost of borrowing or return on lending over one year before or after compounding adjustments.
Interest calculation terms used to express annual, daily, periodic, and simple interest charges.
Simple, periodic, and daily interest terms describe how a rate is applied over time: annually, within a billing or accrual period, daily, or without compounding.
Use this branch when the timing of interest application changes the cost, yield, payoff amount, or accrual calculation.
| Term | What it clarifies |
|---|---|
| Annual Interest Rate | The yearly stated rate before conversion into shorter periods. |
| Periodic Interest Rate | The rate applied for a specific billing, payment, or accrual period. |
| Daily Interest | Interest calculated on a daily balance or daily accrual basis. |
| Simple Interest | Interest calculated on principal without interest-on-interest compounding. |
A line of credit may quote an annual rate but accrue interest daily on the outstanding balance. A savings account may display an annual yield but compound monthly. The displayed annual number is only the starting point.
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An annual interest rate states the cost of borrowing or return on lending over one year before or after compounding adjustments.
Interest calculated on a daily basis, used in loans, deposits, money-market instruments, and exact-interest methods.
A periodic interest rate is the interest rate applied for a specific compounding or payment period.
Simple interest is calculated only on principal, not on accumulated interest from prior periods.