What is a fixed-rate payment?
Fixed-rate payments are installment loans with a fixed interest rate that cannot be adjusted throughout the loan term. The interest and principal proportions will change, but the payment amount will remain unchanged. Due to their predictability and lack of surprises, fixed-rate payments are frequently called “vanilla wafer” payments.
How does a fixed-rate payment work?
Mortgage loans often employ fixed-rate payment agreements. Homebuyers often choose between fixed-rate and adjustable-rate mortgages. Adjustable-rate mortgages are sometimes called floating-rate loans. Homebuyers can choose the best financing type for them.
A bank usually offers many fixed-rate mortgage loans with somewhat differing interest rates. Typically, homebuyers can select a 15-year or 30-year term. For veterans and FHA loans, rates are slightly lower. Veterans and FHA loans provide lower interest rates, but borrowers must buy mortgage insurance to avoid default.
Adjustable-rate loans are available from banks. These sometimes have lower initial interest rates than fixed-rate loans. In periods of low-interest rates, homebuyers might receive an adjustable-rate mortgage with a reduced introductory rate, allowing them to pay less in the months after purchase. When the promotional term ended, the bank upped the rate and payment amounts as interest rates rose. Because new loan rates were expected to fall, banks offered the initial rate cut on fixed-rate loans while interest rates were high.
The difference between fixed-rate and variable-rate loans has nearly closed since the 2008 housing crisis; mortgageates have remained below 5%. The national average 30-year fixed mortgage rate was 2.96% on Aug. 13, 2020. Similar adjustable-rate loans cost 2.9%. The latter is a “5/1 ARM,” with a five-year fixed rate. It can be raised annually after five years.
The difference between the average 30-year fixed-rate mortgage and adjustable-rate mortgage interest rates
Special Considerations
The monthly payment for a fixed-rate loan is the same, but the principal and interest payments vary. Early payments have more interest than principal. Monthly interest payments decrease as principal payments rise. This is termed debt amortization.
Fixed-rate loan example
In the mortgage sector, it refers to fixed-rate mortgage payments indexed on a standard amortization chart. The table below shows the first few lines of an amortization plan for a $250,000, 30-year fixed-rate mortgage with a 4.5% interest rate.
Interest payments decrease slowly each month, but principal payments rise somewhat. The total loan balance drops—the monthly payment of $1,266.71 remains.
| Example of a Loan Amortization Schedule | |||
|---|---|---|---|
| Dollar Amounts | Month One | Month Two | Month Three |
| Total Payment | $1,266.71 | $1,266.71 | $1,266.71 |
| Principal | $329.21 | $330.45 | $331.69 |
| Interest | $937.50 | $936.27 | $935.03 |
| Total Interest | $937.50 | $1,873.77 | $2,808.79 |
| Loan Balance | $249,670.79 | $249,340.34 | $249,008.65 |
Conclusion
- consistent-rate payments have a consistent amount owed throughout the loan, but the interest-to-principal ratio changes.
- Most fixed-rate payments are mortgages. The borrower must choose between fixed and adjustable rates.
- Banks typically provide many fixed-rate mortgage loans with somewhat differing interest rates.

