Field note · 28 July 2026 · 2 min read

Put the German rent deposit on a timeline, not just a list

Understand how first rent, a Kaution and temporary accommodation can overlap when budgeting a move to Germany.

House keys resting beside a signed housing document

A deposit can be affordable in total and still put a move under pressure. The useful question is not only “how much?” but “which account needs the money on which date?”

Begin with the rent vocabulary

German listings often distinguish Kaltmiete, the base or “cold” rent, from Warmmiete, which includes certain operating costs. Electricity, internet and sometimes heating arrangements may still sit outside the advertised warm figure. A deposit is commonly calculated from cold rent, but the contract is the source you need to check.

For residential leases, a security deposit may generally be no more than three months of cold rent. When provided as money, tenants generally have the right to pay it in three equal monthly instalments, with the first due when the tenancy begins. Specific arrangements deserve a proper contract check if anything is unclear.

Draw four dates

Write down the payment date for your temporary stay, the tenancy start, the first rent and each deposit instalment. Add the date your previous housing obligations end and the date your first German income is expected.

This exposes the expensive bridge. A furnished apartment may require advance payment while the long-term home requires first rent and an instalment. A refundable deposit is still unavailable cash while held.

Keep the deposit reserve separate

Do not let a deposit line double as the general emergency reserve. One has a known housing purpose; the other protects against uncertainty such as a longer search or delayed reimbursement.

Use three figures: confirmed contractual cash, a working range for the housing bridge, and a separate reserve. Replace estimates as soon as a real offer arrives.