First apartment costs: what does your own place really cost per month?

In depth

One-off costs: the start-up capital before you move in

Before the first rent is due, a one-off lump sum piles up – and it catches many people out. The biggest item is usually the deposit: in Germany, under the Civil Code it may be no more than three months' base rent, the landlord must hold it separately and with interest, and return it to you when you move out properly. On top come the move itself (a van, boxes, helpers or a removal firm), furniture and basic equipment, and small but numerous purchases: curtains, lamps, tools, cleaning supplies, crockery. If you're moving out of a furnished room or from your parents' home, it's easy to underestimate how much a full first fit-out costs. An honest trick: before moving in, list every room and note what you really need there – then you can separate 'now' from 'can wait' and spread the spending over several months instead of shouldering it all at once.

Running costs: what the apartment eats every month

The base rent is only the start. Add the utilities (operating costs such as water, sewage, refuse collection, building cleaning, property tax and often heating), which together with the base rent make up the warm rent – the number that really counts. Separate from that, you usually sign your own electricity contract; heating may be part of the utilities or billed separately, depending on the contract. Then come internet and phone, the broadcasting fee (which is charged per apartment, not per person), and insurance. Two policies make sense for a first apartment: personal-liability insurance, which covers damage you cause to others, and contents insurance for your belongings in case of fire, burglary or water damage. As a rough guardrail: warm rent plus these fixed costs should ideally stay under about a third of your net income. That isn't a hard rule but a warning sign – if you're well above it, every month gets tight.

From an overview to a plan you can rely on

The most common mistake is to look only at the base rent and forget the many small items. A simple two-column plan helps: on the left the one-off costs (deposit, moving, first fit-out), on the right the monthly fixed costs (warm rent, electricity, internet, broadcasting fee, insurance). Add up the one-off costs – that's the start-up capital you should have saved before moving in. Then total the monthly costs and compare them with your net income. Remember the irregular costs too: the utilities statement can bring a top-up bill, and so can the electricity supplier. That's what a small buffer is for: divide the foreseeable yearly costs by twelve and set them aside monthly, and keep an emergency fund on top. That's how a gut feeling turns into a plan that holds up even when the washing machine breaks or a top-up bill lands in your mailbox.