CD vs Annuity Calculator

Does a MYGA really beat a CD at the same rate?

Usually, yes, once you let it run for a few years, and the reason has nothing to do with the headline rate. A multi-year guaranteed annuity's interest is not taxed until you withdraw it, so the whole balance keeps compounding, while a CD's interest is taxed as it is earned, every year, whether you touch it or not. On $80,000 at a hypothetical 5.5% for six years, a MYGA would grow to roughly $110,900 with no tax taken along the way, while the same deposit in a CD taxed annually at a 24% bracket would land closer to $103,400 after tax. If you cashed out the MYGA at that same point, you would still owe tax on its gain, so your real after-tax edge that year would be smaller than the two totals suggest, but it grows the longer you leave the money alone and the lower your bracket is when you finally withdraw it. Run your own deposit, term and brackets in the calculator below.

How to use the calculator in three steps

• Enter your deposit and the number of years. Start with the amount you are considering moving, such as $80,000, and how many years you would leave it in place, for example 6.
• Enter a CD APY and a MYGA rate. Use current quotes for both if you have them, or a round hypothetical rate for planning purposes.
• Set your tax bracket now and your tax bracket at withdrawal. The CD's interest is taxed every year at your "now" bracket. The MYGA is only taxed once, at the end, using your "at withdrawal" bracket, which lets you model retiring into a lower bracket than the one you are in today.

A worked example. Frank, 59, has $80,000 in a CD that just matured and is weighing whether to renew it or move the money into a 6-year MYGA instead. He enters $80,000, a 5.5% rate for both products, 6 years, a 24% tax bracket for today and an 18% bracket for the year he expects to withdraw, since he plans to be retired and in a lower bracket by then. The CD gets taxed every single year along the way, while the MYGA's full balance compounds untouched until year six.

After six years, the MYGA reaches about $110,900 before its final tax bill, and roughly $104,700 after Frank pays 18% tax on the gain that year. The annually taxed CD finishes at about $103,400. Frank's after-tax edge with the MYGA comes out to roughly $1,300, and it would be larger still if he let the money run longer or if his eventual bracket dropped further. Because he does not need this cash for daily expenses and keeps a separate account for emergencies, he decides the tax-deferred MYGA is the better home for it.

How a CD and a MYGA actually differ

Think of a CD as a bank's version of a locked box: hand over a deposit, agree to leave it for a set stretch, and collect a fixed yield when the term is up. A MYGA is the insurance industry's answer to the same idea, issued by a carrier rather than a financial institution, with its own guaranteed rate for its own fixed term. Neither one exposes your original deposit to stock market swings, which is the whole appeal for savers who want certainty.

Where the two part ways is in three practical spots: the tax bill, how long you commit for, and what it costs to get money out early. Bank CDs are typically sold for terms as short as a few months up to about five years. MYGAs skew longer, commonly 2 to 10 years. Pull cash out of a CD ahead of schedule and you generally lose a flat chunk of interest as a penalty; pull it out of a MYGA and you run into a surrender charge that shrinks year by year, though most contracts still let you take roughly 10% of the value out annually with no penalty at all. Want to see either product grow purely on its own, with no comparison attached? Try the CD calculator or the fixed annuity calculator. For more depth on rates, taxes, safety and liquidity side by side, see our fixed annuity vs CD comparison.

Why tax deferral, not the rate, is the real story

The rate on the label rarely explains the gap between these two products. The tax rule does. A bank sends the IRS a report of your CD interest every year, and you owe ordinary income tax on it whether you withdraw a dollar or leave it all in place. That annual bill quietly slows down how fast your money actually grows.

A MYGA defers that entire question. No tax comes due while the interest builds inside the contract, so the full balance, including money that would otherwise have gone to the IRS, keeps compounding year after year. You do eventually pay ordinary income tax on the gain when you withdraw it, which is exactly why this calculator asks for a separate bracket for that later year. Tax deferral is not a way of avoiding tax altogether; it is a way of postponing it, ideally to a year when your bracket is lower. To watch pure compounding do its work over a longer stretch, try the compound interest calculator.

How safe is each option?

Both products are designed to protect your principal if you hold them to term, but the guarantee behind each one is different. A bank CD is insured by the FDIC up to $250,000 per depositor, per insured bank, per ownership category, a backing that comes straight from the federal government.

A fixed annuity's guarantee rests on the claims-paying ability of the company that issued it, with your state's guaranty association providing a backstop up to its own set limit if that carrier were ever to fail. Those are both real protections, but they work differently, which is why the financial strength of the carrier is worth checking before you buy. We can compare a MYGA candidate with other top-rated carriers before you commit any money.

When a CD is still the smarter pick

A MYGA is not the automatic winner in every case. A CD tends to make more sense when your time horizon is short, when you might need the cash without much notice, or when the money is part of an emergency fund you want to keep simple. CDs are also easy to ladder in small amounts, and their early-withdrawal penalties are typically milder than an annuity's surrender charge in the contract's first year or two.

If you can leave the money untouched for the whole term and your priority is the most efficient after-tax outcome, the MYGA's deferral and often stronger rate tend to come out ahead. Plenty of savers use both at once: a CD or savings account for near-term needs, and a MYGA for the portion earmarked for later.