Fixed index annuities (FIAs) are a type of annuity that provide a guaranteed rate of return over a specific period of time. They are designed to help you grow your retirement savings while minimizing risk. Here are the basics you need to know:

1. How FIAs work: FIAs are typically sold by insurance companies and work by tying your investment return to a specific index, such as the S&P 500. If the index performs well, you'll receive a portion of the gains. If the index performs poorly, you won't lose any principal, but you may not earn any interest.

2. Guaranteed minimum interest rate: One of the main benefits of FIAs is that they offer a guaranteed minimum interest rate, which protects you against market downturns. This rate is typically lower than the potential rate of return, but it provides peace of mind for those who are risk-averse.

3. Fees: Like most financial products, FIAs come with fees, such as administrative fees and surrender charges if you withdraw your money early. It's important to carefully review the fees and terms before investing in an FIA.

4. Tax considerations: FIAs are tax-deferred, meaning you won't pay taxes on any earnings until you withdraw the funds. However, withdrawals made before age 59 1/2 may be subject to a 10% penalty, and any withdrawals made after that age will be subject to income tax.

5. Suitability: FIAs are not suitable for everyone. They are designed for people who are looking for a guaranteed rate of return and are willing to sacrifice some potential gains in exchange for downside protection. If you're comfortable with market risk and want to maximize your potential returns, a different investment product may be more appropriate.

6. Working with a financial professional: Because of the complexity of FIAs, it's important to work with a financial professional who can explain the product and help you determine if it's right for you. Look for a licensed and experienced financial advisor who can help you weigh the pros and cons of FIAs and other investment options.