The formula
Deposit interest = Principal × annual rate × months/12
Calculations run in your browser. Displayed values are rounded, while intermediate calculations keep their full precision.
What this estimate assumes
- Simple interest is used.
- The tax rate is editable because rules differ by country.
- Bank-specific day counts and rounding may differ.
A quick reality check
US$10,000 for 12 months at 4%
Gross interest is US$400 before any applicable tax.
Common questions
Which tax rate should I use?
Use the rate that applies to your account and tax residence, or 0% for a pre-tax comparison.