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Rental Deposit Calculator

Calculate the rental deposit and potential interest income. Maximum three months' net cold rent.

Updated 2025 Data stays local

Maximum Deposit (3 months base rent)

2.400,00 €

Installment Payment (§ 551 para. 2 BGB)

1st Installment (at move-in)800,00 €
2nd Installment (2nd month)800,00 €
3rd Installment (3rd month)800,00 €

Interest Earnings (5 J.)

185,48 €

Final Value incl. Interest

2.585,48 €

Interest / Month (avg.)

3,09 €

Note: The landlord must invest the deposit separately in a deposit account (§ 551 para. 3 BGB).

The interest belongs to the tenant and increases the deposit amount.

Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.

Frequently Asked Questions

How high can the rental deposit be?

By law, the rental deposit cannot exceed three months of net cold rent (Kaltmiete). Utilities and heating costs are not included. The landlord must invest the deposit in a separate account.

When must the deposit be returned?

The landlord must return the deposit within a reasonable period after the tenancy ends, typically 3-6 months. They may retain a portion for outstanding claims or utility bill settlements.

What is the Rental Deposit Calculator?

The rental deposit calculator computes the maximum deposit amount and the interest income if the deposit is invested in a savings account.

How does the Rental Deposit Calculator work?

Enter the monthly cold rent. The calculator determines the maximum deposit (3 months cold rent) and shows investment options: savings account, deposit passbook or deposit insurance. Interest income and costs are compared.

Key Data and Facts

Maximum deposit: 3 months net cold rent (Section 551 BGB). Payment in 3 monthly instalments permitted. Landlord must invest the deposit separately and with interest.

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