Fixed Deposit Calculator
For amount, interest rate and term in months, see interest and final balance before and after withholding tax, solidarity surcharge and saver's allowance.
Guide value: average rate on new business according to ECB interest rate statistics for Germany (08/2026): up to 1 year 2.3%, 1–2 years 2.6%, over 2 years 2.7%. Top offers are usually somewhat higher.
Interest (gross)
€230.00
Final capital (gross)
€10,230.00
Interest (net)
€230.00
Final capital (net)
€10,230.00
Tax calculation
Interest is taxed in the year it is credited (§ 11 EStG), and the saver's allowance applies per calendar year (§ 20(9) EStG). Assumption: each credit falls into a separate calendar year and the allowance is not already used by other investment income. Church tax not included.
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
FAQ
Frequently Asked Questions
What is fixed-term deposit (Festgeld)?
Fixed-term deposit locks your money for a specified period (typically 1-60 months) at a guaranteed interest rate. The rate is usually higher than call money but you cannot access the funds before maturity.
What term should I choose for fixed-term deposit?
The optimal term depends on your liquidity needs and interest rate expectations. A ladder strategy (spreading investments across different terms) provides both flexibility and higher average returns.
Are my entered amounts stored anywhere?
No. All calculations happen exclusively in your browser. Your inputs are never sent to our server or stored. You can safely enter sensitive financial data.
Guide
What is the Fixed Deposit Calculator?
The fixed deposit calculator computes interest income for a fixed-term deposit with a guaranteed interest rate.
How does the Fixed Deposit Calculator work?
Enter the deposit amount, interest rate and term, and choose how interest is paid: credited to the deposit every year (compound interest), paid out to another account every year, or all at maturity. The calculator taxes each interest credit in its own year with flat-rate tax and solidarity surcharge after the saver's allowance (1,000 or 2,000 EUR per year) and shows interest and final capital before and after tax.
Key Data and Facts
Common terms: 3 months to 10 years. Funds not available during the term. Deposit guarantee: 100,000 euros per customer and bank (§ 8 EinSiG). Average rate on new business according to the ECB (Germany, 08/2026): approx. 2.3% up to 1 year, 2.6% for 1-2 years, 2.7% over 2 years.
Step-by-Step Guide
How to calculate your fixed-term deposit returns step by step: 1. Set the investment amount: The minimum amount varies depending on the bank (often 1,000-10,000 EUR). 2. Choose the term: Usually 3, 6, 12, 24, 36 or 60 months. Longer terms often offer higher interest, but the money is tied up. 3. Check the interest rate: Compare offers from different banks. As a guide, the average rate on new business in Germany according to ECB interest rate statistics was about 2.3 % (up to 1 year), 2.6 % (1-2 years) and 2.7 % (over 2 years) in August 2026; top offers are usually somewhat higher. 4. Note the interest payout: Credited to the deposit every year (with compound interest), paid out to another account every year, or paid at the end of the term (both without compound interest). 5. Calculation with annual crediting: Final capital = investment x (1 + interest)^years. Without compounding: interest = investment x interest x years. 6. Take tax into account: Interest is taxable in the year it is credited (§ 11 EStG). The saver's allowance of 1,000 EUR (2,000 EUR for married couples) applies per calendar year; above it, 26.375 % flat-rate tax incl. solidarity surcharge is due. If all interest is paid at maturity, it falls into a single tax year with only one allowance. Example: 50,000 EUR fixed-term deposit, 2.7 % interest, 3 years, annual interest credit. Year 1: 1,350 EUR. Year 2: 1,386.45 EUR. Year 3: 1,423.88 EUR. Final capital: 54,160.33 EUR, total interest: 4,160.33 EUR. Tax each year on the part above 1,000 EUR: (350 + 386.45 + 423.88) x 26.375 % = 306.04 EUR. For comparison, with payout at maturity: 50,000 x 2.7 % x 3 = 4,050 EUR interest in one year, tax (4,050 - 1,000) x 26.375 % = 804.44 EUR.
Calculation Example
50,000 EUR fixed-term deposit, 2.7 % interest, 3 years, annual interest credit with compounding: interest 4,160.33 EUR, final capital 54,160.33 EUR, tax 306.04 EUR (saver's allowance in each of the three years). All interest at maturity: 4,050 EUR interest, tax 804.44 EUR.
Sources
Official sources
Calculations are based on applicable German laws and official data:
- Deutsche Bundesbank
- Bundesanstalt für Finanzdienstleistungsaufsicht (BaFin)
- Statistisches Bundesamt (Destatis)
Full methodology at Methodology.
Reviewed by Konstantin Iakovlev · Last updated:
Finance
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