Building Savings Calculator
Enter contract sum, monthly savings, savings period and both interest rates to see the saved balance, savings ratio, loan amount, repayment time and interest.
Savings phase
Saved balance
€16,946.08
Deposits
€16,800.00
Savings ratio
33.9%
| Year | Deposits | Interest | Balance |
|---|---|---|---|
| 1 | €2,400.00 | €2.75 | €2,402.75 |
| 2 | €4,800.00 | €11.52 | €4,811.52 |
| 3 | €7,200.00 | €26.31 | €7,226.31 |
| 4 | €9,600.00 | €47.15 | €9,647.15 |
| 5 | €12,000.00 | €74.05 | €12,074.05 |
| 6 | €14,400.00 | €107.02 | €14,507.02 |
| 7 | €16,800.00 | €146.08 | €16,946.08 |
Loan phase
Loan
€33,053.92
Monthly installment
€300.00
Repayment period
9 yr. 11 mo.
Note: The savings ratio of 33.9% is below the usual 40-50% required for allocation.
Housing premium (Wohnungsbauprämie): 10% of savings contributions up to €700.00 per year (€1,400.00 for married couples), if taxable income does not exceed €35,000.00 (€70,000.00 for married couples) and at least €50.00 is paid in per year (§§ 2, 2a, 3 WoPG). It is applied for every year and usually paid out only when the money is used for housing, so it is not included in the balance above. Assumption: the same income in every savings year.
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
How does a building savings contract (Bausparvertrag) work?
You save a portion of the contract sum (typically 30-50%) during the savings phase. Once allocation-ready, you can take out the building savings loan at a guaranteed interest rate for the remaining amount.
Is a building savings contract still worthwhile?
It can be worthwhile for securing low interest rates for future property purchases, for the housing premium (Wohnungsbauprämie) of up to 70 euros per year, and for employer savings allowances (VWL).
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 Building Savings Calculator?
The building savings calculator computes the savings phase, interest, housing premium and the conditions of the building savings loan.
How does the Building Savings Calculator work?
Enter the contract sum, monthly savings, savings period, credit and loan interest and the loan installment in per mille of the contract sum. The calculator shows the saved balance, the savings ratio (usually 40-50% of the contract sum is needed for allocation) and when 40% is reached, the housing premium based on income and marital status, as well as the loan amount, repayment period and loan interest.
Key Data and Facts
Housing premium: 10% on max. 700 euros/year (single) or 1,400 euros (married), at least 50 euros of contributions per year. Income limits: 35,000/70,000 euros taxable income. Loan installment usually 5-7 per mille of the contract sum per month. Loan rate fixed at contract signing.
Step-by-Step Guide
How to calculate your building savings contract step by step: 1. Set the savings sum: the total amount of savings balance and building loan (e.g. 50,000 EUR). 2. Enter the monthly savings rate: usually 3-5 per mille of the savings sum. 3. Calculate the savings phase: allocation readiness is reached at approx. 40-50 % of the savings sum. Credit interest: currently approx. 0.01-0.25 %. 4. Check the housing construction premium: 10 % on a maximum of 700 EUR/year (single people) or 1,400 EUR (married couples), if taxable income does not exceed 35,000/70,000 EUR and at least 50 EUR is paid in per year (§§ 2, 2a, 3 WoPG). It is usually paid out only when the money is used for housing. 5. Loan phase: the loan (the difference to the savings sum) is repaid at the interest rate set when the contract was concluded; the monthly installment of interest and repayment is usually 5-7 per mille of the savings sum. 6. Compare the total cost: compare the effective interest rate of the building loan with current bank loans. Example: savings sum 50,000 EUR, savings rate 200 EUR/month. Savings level 40 % = 20,000 EUR. Savings phase: 20,000 / 200 = 100 months (approx. 8.3 years, without credit interest). Housing construction premium: 200 x 12 = 2,400 EUR/year, of which a maximum of 700 EUR is premium-eligible. Premium with taxable income up to 35,000 EUR: 700 x 10 % = 70 EUR/year, 560 EUR over 8 full savings years. Building loan: 30,000 EUR at 1.5 % loan interest (0.125 % per month). Installment 6 per mille of the savings sum = 300 EUR/month. Repayment period: -ln(1 - 30,000 x 0.00125 / 300) / ln(1.00125) = about 107 months, i.e. just under 9 years.
Calculation Example
Building savings sum 50,000 EUR, savings instalment 200 EUR/month. Savings phase up to 40 % (20,000 EUR): 100 months, about 8.3 years (without credit interest). Home construction bonus (taxable income up to 35,000 EUR): 70 EUR/year. Building savings loan 30,000 EUR, 1.5 % interest, installment 6 per mille = 300 EUR/month: about 107 months, just under 9 years.
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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