March 16, 2026
How Much Rent Can I Afford? Budget, SCHUFA, and Proof of Income
Anyone apartment hunting has to answer two questions at once: how much rent is financially healthy, and how much rent will a landlord actually trust your income to cover. The two are related, but they aren't the same thing.
The 30% rule as a starting point
As a rough guideline, your net Kaltmiete shouldn't exceed 30% of your monthly net income. At €2,000 net, that's around €600; at €3,000 net, around €900. This isn't a legal requirement, just a common rule of thumb that listing portals like ImmoScout24 also cite as a benchmark.
Reality often departs from it. According to the Federal Statistical Office, housing including energy made up 36.3% of German households' total consumption spending in 2024 (an average of €309 out of €3,257 a month), by far the largest single category and well above the 30% mark. If you're searching in an expensive city, treat this rule as a target rather than a guaranteed reality.
Kaltmiete isn't the whole calculation
Kaltmiete is the base rent before operating costs. For budgeting purposes, what actually matters is the Warmmiete: Kaltmiete plus the prepayment for running costs like heating, water, and building maintenance. According to the German Tenants' Association's latest cost survey, these operating costs averaged €2.67 per square meter per month in 2024, ranging up to €3.68 in particularly cost-intensive buildings. For a 60-square-meter apartment, that's roughly €160 a month on top of the Kaltmiete that needs to be factored into your 30% calculation.
What landlords ask for as proof
Before confirming a lease, landlords almost always check whether your income matches the rent on offer. Typically, they'll ask for:
Recent pay slips or an employment contract
A self-disclosure form (Mieterselbstauskunft) covering income, occupation, and rental history
A SCHUFA credit report confirming creditworthiness
A SCHUFA credit report for landlords, the BonitätsCheck, costs a one-time fee of €29.95 and arrives as a PDF or by post within a few business days. It's distinct from the free data copy under Article 15 GDPR, which consumers can request once a year at no cost, but which isn't formatted for landlord applications.
Calculating your rent budget in four steps
Work out your monthly net income (after tax and social contributions).
Multiply that figure by 0.3 to get a rough ceiling for your Warmmiete.
Add the offer's Kaltmiete to the estimated Nebenkosten (benchmark: €2.67 per square meter per the Tenants' Association) to arrive at the real Warmmiete.
Compare that number against the 30% ceiling and weigh it against other fixed costs like insurance, loans, or childcare.
When your rent lands above 30%
In many major German cities, an average income isn't enough to stay under the 30% mark long-term. That doesn't automatically rule out a lease, but it's a reason to examine your remaining monthly expenses closely and realistically assess how much room the remaining 70% of your income actually leaves. Our Warmmiete calculator can help if a listing doesn't state Nebenkosten at all.
Frequently Asked Questions
Do landlords calculate with Kaltmiete or Warmmiete?
Serious landlords and rental platforms work from the Warmmiete, since it reflects your actual monthly burden. See our breakdown of Kaltmiete versus Warmmiete for the full distinction.
Is a SCHUFA report mandatory for landlords?
It's not a legal requirement, but most landlords in tight rental markets ask for it as a standard part of the application.
What does a SCHUFA credit report cost?
The SCHUFA BonitätsCheck costs a one-time fee of €29.95 and is delivered within a few business days.
Does the 30% rule include Nebenkosten?
Yes. The rule refers to the Warmmiete, meaning Kaltmiete plus the Nebenkosten prepayment, not the Kaltmiete alone. Our income-tier rent examples show what that looks like at five different net incomes.
