When conservative savings products start offering attractive returns again, a common dilemma arises between two of the most popular low-risk savings vehicles: high-yield savings accounts and fixed-term deposits. Both are low-risk products, but they have important differences worth understanding before choosing between them.
What a high-yield savings account is
A high-yield savings account is a bank account that pays interest on the balance held, with full and immediate access to your money at any time, with no penalty for withdrawing it. The interest rate offered may be fixed during a promotional period or variable depending on the bank's terms, and it's usually reviewed fairly often.
What a fixed-term deposit is
A fixed-term deposit involves locking away a sum of money for a set period (for example, 6, 12, or 24 months), in exchange for a fixed interest rate guaranteed for the entire term of the deposit. Withdrawing the money before maturity usually carries a penalty, in the form of a total or partial loss of the interest accrued.
Direct comparison
| Savings account | Fixed-term deposit | |
|---|---|---|
| Access to your money | Immediate, no penalty | Locked until maturity (penalty if withdrawn early) |
| Interest rate | Usually variable, reviewable | Fixed, guaranteed for the whole term |
| Typical return | May be somewhat lower, but with more flexibility | May be somewhat higher in exchange for less liquidity |
| Risk | Covered by the Deposit Guarantee Fund up to the legal limit | Same Deposit Guarantee Fund coverage |
When each option makes sense
- Savings account: suitable for your emergency fund or for savings you might need at any moment without warning, since it prioritizes access over maximum returns.
- Fixed-term deposit: suitable for a portion of your savings that you're confident you won't need before the agreed maturity date, where the certainty of a fixed guaranteed rate matters more to you than flexibility.
Taxation is the same in both cases
For income tax (IRPF) purposes, interest earned from both savings accounts and fixed-term deposits is taxed the same way, as investment income within the savings tax base, subject to the corresponding progressive brackets for that type of income. The choice between one product or the other shouldn't be based on taxation, which is equivalent, but on your liquidity needs.
The Deposit Guarantee Fund, your main protection
With both products, the money deposited is protected by the Deposit Guarantee Fund up to a limit of €100,000 per account holder and institution, in case the bank runs into trouble. If your savings exceed that limit, it's worth considering spreading them across different institutions to keep the full amount covered by this guarantee.
Compare the long-term outcome
Our compound interest calculator lets you project how your savings would grow at different interest rates, useful for numerically comparing the effect of choosing one product over the other over time.