What Is a Cap Rate?
A cap rate is an upper limit set by the insurance carrier on how much interest can be credited to a fixed indexed annuity in a single crediting period. If the linked index rises 12% and the cap is 6%, you receive 6%. If the index rises 4%, you receive the full 4% because you stayed under the cap.
Why Cap Rates Exist
Insurance carriers use the premiums you pay to purchase options contracts on the index and fixed-income investments. The cap reflects what the carrier can afford to credit while still covering its obligations and operating costs. Higher caps generally mean the carrier is accepting more risk or working on a thinner margin.
How Caps Change Over Time
Cap rates are not fixed for the life of the contract. Most carriers reset them annually on your contract anniversary. Caps can rise or fall depending on interest rate conditions, option costs, and the carrier's pricing decisions.
When comparing annuities, review the carrier's historical cap rates in addition to the current rate. A carrier that has consistently maintained caps above a certain floor is generally more reliable than one advertising a high introductory rate that may drop sharply after the first year.
Caps vs. Participation Rates vs. Spreads
Caps are one of three main tools carriers use to limit credited interest:
- Cap rate: Hard ceiling on the credited amount.
- Participation rate: A percentage of the index gain you receive (e.g., 70% of the index gain).
- Spread fee: An amount subtracted from the index gain before crediting (e.g., index gains 8%, spread is 2%, you receive 6%).
Some contracts use more than one of these simultaneously. Reading the illustration carefully will show which method — or combination — applies to your contract.