CD vs Treasury bill
CD or T-bill for short-term savings?
T-bills skip state income tax and you can sell early. CDs are FDIC-insured and predictable, but cashing out early usually costs interest.
Key takeaways
- T-bill interest is state-tax-free
- CDs are FDIC-insured up to the limit
- Early CD withdrawal usually forfeits interest
- Both lock in a known yield
When to choose Certificate of deposit
You want maximum after-tax yield and the option to sell early.
When to choose Treasury bill
You want a no-thinking fixed rate at your existing bank.
TL;DR
For cash you won't touch for 3–12 months, T-bills usually win on after-tax yield. CDs win on simplicity.
Key differences
- CD: bank product, FDIC-insured, fixed term, early withdrawal penalty.
- T-bill: US government debt, no state income tax on interest, sellable on the secondary market.
When each wins
- T-bill when you live in a high-tax state or might need to sell early.
- CD when you want a simple, locked-in rate from your existing bank.
Watch-outs
Check reinvestment plans and any early-withdrawal terms before you commit.
Related
Checking is for moving money in and out. Savings is for holding money you don't need today and earning a little interest on it.
Keep ~1 month of expenses in checking. Park the rest of your emergency fund and short-term savings in a HYSA where it actually earns interest.
They're very similar. Money markets may offer check-writing or a debit card; HYSAs usually have the best advertised rate.
Wealthypedia is educational. This isn't financial, tax, legal, or investment advice. Last reviewed —.