Best CD Rates Today: Up to 4.30% APY, and the Math California Savers Should Run First
The top CD rate available today is 4.30% APY. Before you lock your savings into it, it's worth checking whether the highest advertised rate is actually the highest rate you'll keep, once California takes its share.
- The top CD rate today is 4.30% APY, from Synchrony Bank (16-month) and Marcus by Goldman Sachs (18-month)
- Short and mid-term CDs currently pay more than long-term CDs, an unusual inversion of the historical pattern
- CD interest is taxed federally and by California; Treasury interest is exempt from California state tax only
- At California's 9.3% bracket or higher, a 4.13% one-year Treasury can out-earn a 4.30% CD after tax
Today's Top CD Rates
| Term | Top APY Today |
|---|---|
| 6-month | Up to 4.15% |
| 1-year | Up to 4.10% |
| 16 to 18-month (best overall) | Up to 4.30% |
| 2-year | Up to 4.25% |
Historically, longer CD terms paid higher rates as a reward for locking up your money for longer. Right now that pattern is inverted: mid-term CDs (16 to 18 months) are paying more than either shorter or longer terms, which suggests banks expect rates to fall over the next year or two and want to lock in deposits at today's levels before that happens.
What a CD Actually Pays You
A $1,000 deposit in a 1-year CD at 4% APY, compounded monthly, grows to about $1,040.74, or $40.74 in interest. Put in $10,000 at the same rate and you'd earn about $407.42 over the year. The more you deposit, the more the rate compounds in your favor, but it also means the tax treatment matters more as your balance grows.
Today's best CD pays 4.30% APY. The 1-year U.S. Treasury yield is currently 4.13%. CD interest is taxed at both the federal and California state level. Treasury interest is exempt from California state tax. Strip out the CA-only portion and the comparison flips: at a 9.3% California bracket, that 4.30% CD nets about 3.90% after state tax, while the 4.13% Treasury keeps its full 4.13%, since it owes California nothing. At California's top 13.3% bracket, the CD drops to about 3.73% after state tax, widening the gap further. The higher advertised rate isn't automatically the higher take-home rate.
Types of CDs Worth Knowing
- Variable-rate CD: Lets you request a rate bump once if your bank's rates rise during your term
- No-penalty CD: Also called a liquid CD, allows withdrawal before maturity with no early withdrawal penalty
- Jumbo CD: Requires a larger minimum deposit, often $100,000+, though the rate premium over standard CDs is often small right now
- Brokered CD: Purchased through a brokerage instead of directly from a bank; can offer better rates or flexibility, but may carry more risk and may not carry FDIC coverage
Compare CDs, Treasuries, and other fixed-income options with your real California tax bracket using our California Financial Strategy Simulator, which includes the Treasury state-tax exemption built in.
Frequently Asked Questions
As of August 30, 2026, the highest widely available CD rate is 4.30% APY, offered by Synchrony Bank on a 16-month CD and Marcus by Goldman Sachs on an 18-month CD.
It depends on the after-tax return, not just the nominal rate. CD interest is taxed at both the federal and California state level, while U.S. Treasury interest is exempt from California state tax. At a 9.3% California tax bracket, a 4.13% one-year Treasury yield can out-earn a 4.30% CD after tax.
Bank CDs are typically FDIC insured up to $250,000 per depositor, per bank. Brokered CDs may not carry the same protection, so it's worth confirming coverage before opening one.
A no-penalty CD, also called a liquid CD, lets you withdraw funds before maturity without an early withdrawal penalty, usually in exchange for a somewhat lower rate than a traditional CD.
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