Free or Premium – Which Version Do You Need?
Published on March 30, 2026
Two Letter Types, Two Plans
On mietminderung.online you can create two types of letters: a defect notice (Mängelanzeige – notification to the landlord about a defect) and a rent reduction letter (Mietminderungsschreiben – a formal request for a rent cut). Both are available in a free version and a Premium version for €9.99. But when is the free version enough – and when is Premium worth it?
What Is a Defect Notice?
The defect notice is the first step for any apartment defect. Under § 536c BGB, you as a tenant are required to inform the landlord about the defect without delay. Without this notice, you risk losing your right to a rent reduction.
A defect notice is a relatively simple document: it describes the defect, requests repair, and sets a deadline. Complex legal argumentation is not required here.
When Is the Free Version Enough?
For defect notices, the free version is usually sufficient. Here is why:
- The letter is complete in content and legally correct
- It contains all necessary information: defect description, deadline, and a reference to your rights
- The only difference from the Premium version is a small reference tomietminderung.online in the footer
Premium for a defect notice only makes sense if you want to remove the site reference in the footer – for example, for a more formal appearance.
What Is a Rent Reduction Letter?
A rent reduction letter goes one step further: you request the landlord to accept a specific rent cut. Arguments matter here – because the landlord or their lawyer will check whether your claim is justified and reasonable.
When Is Premium Worth It?
For a rent reduction letter – especially when the monthly savings are €100 or more. Premium offers decisive advantages:
1. Relevant Court Rulings
Your letter includes references to matching court rulings for your specific defect. This shows the landlord: your claim is not made up, but supported by case law. This increases the chance that the landlord accepts the reduction without a dispute.
2. More Precise Reduction Rate
The Premium version calculates the reduction percentage based on actual court rulings. With our rent reduction calculator you can estimate in advance what reduction is possible in your case. This way you neither reduce too much (risk of eviction due to rent arrears) nor too little (money left on the table).
3. Professional Appearance
No reference to an online service in the footer – your letter looks as if it came directly from you or a legal advisor.
4. Instant Return on Investment
With a reduction of €100 per month, Premium costs €9.99 – less than a tenth of the first month's savings. And the reduction applies every month until the defect is fixed.
Summary
Here is when each version makes sense:
- Defect notice → Free version is sufficient. Premium only for a cleaner look (no footer).
- Rent reduction under €100 → Free version works. Premium is optional.
- Rent reduction of €100 or more → Premium recommended. Court rulings and precise calculation significantly strengthen your position.
In short: for the defect notice, free is enough. For a rent reduction letter with higher savings, Premium is worth it – it pays for itself in the first month.
Do you have a rental defect?
Create a free letter to your landlord now and demand defect remediation or rent reduction.
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