What to Do If the German Tax Office Demanded Your Income Tax Return: A Step-by-step Guide for Expats

You’ve received a letter from the German tax office (Finanzamt) demanding that you file a tax return and don’t know how to react? Many expats who have missed the July 31st filing deadline are receiving demands to file a tax return (Aufforderung zur Abgabe einer Einkommensteuererklärung) in September, typically within a one-month deadline. Living in a foreign jurisdiction, this can lead to stress and confusion. In this article, we explain what this notice means, why you received it, and how taking immediate action restores your peace of mind while being fully tax compliant. 

1. The Tax Filing Notice: Why You Received It

A letter from the German tax office usually means authorities believe you are legally required to file a tax return (“Pflichtveranlagung”), rather than filing voluntarily (“Antragsveranlagung”). Expats frequently trigger mandatory filing requirements due to cross-border factors. You are not sure if filing requirements apply to you? Find out more by reading our guide. Receiving the letter is not a reason to be stressed out. Although it is better to file on time, there are many taxpayers every year who miss the deadline and receive a reminder like yours.  

Prinz.tax Practical Experience: Stay calm, review your situation carefully and seek professional advice if needed. 

2. What happens if you don’t comply with the Tax Filing Notice? 

The tax office typically sets a strict one-month deadline associated with late fees (“Verspätungszuschlag”) under § 152 AO. If you do not address their requirements, German tax regulations leave room for escalation. Typically, after a second reminder you will be facing administrative fines (“Zwangsgeld”) under § 329 AO in combination with late fees and potential interest charges (“Zinsen”) under § 233a AO. If you do not comply, the tax office may then estimate your tax bill (“Schätzung”) under § 162 AO based on conservative assumptions, which is almost always financially unfavorable to you. 

Prinz.tax Practical Advice: To the extent possible, promptly comply with demands from the tax office or seek professional advice. 

3. How to Resolve the Situation 

Our first advice is usually to remain in control, not to worry about taxes and then taking proper action. If you have accidentally missed the tax filing deadline and already know how to file a tax return in Germany, make sure that you comply with the request on time. If your situation is more complicated, seek professional advice. Especially, if your tax situation includes foreign income, find an expert in international taxation. One of the advantages of hiring a tax consultant if you have missed the July deadline under § 149 (2) AO, typically will be an automatic extension until end of February of the following year under § 149 (3) AO. 

Prinz.tax Practical Advice: Request a formal extension to file for at least one month. If you have a valid reason (like international travel, incomplete documentation, complex tax situation) you can even request a two-month extension and expect it will be granted. 

4. How Prinz.tax Protects and Helps You 

Understanding cross-border tax treaties and communicating with German tax authorities does not have to be your concern. At Prinz.tax, we specialize in international tax advisory tailored specifically for expats in Germany. Here is what we typically do when new clients are seeking our support after having received a reminder letter from the German tax office to file their taxes: 

  • Power of Attorney: By granting us Power of Attorney for tax consultants, we are authorized to reach out to the tax office on your behalf and clarify the situation and understand their demands. 
  • Automatic General Deadline Extension: Hiring a tax consultant (“Steuerberater”) automatically extends your general filing deadline (e.g., extending tax filings up until February 2027). 
  • Electronic Tax Filing: After understanding your situation and reviewing your supporting documentation, we promptly draft your income tax return and with your approval file it electronically with the tax office. 
  • Complete Communication Management: We handle all correspondence directly with the German tax office, including their follow-up questions and documentation requests. 

Frequently Asked Questions (FAQ) 

1. How long do I have to respond to a tax filing demand from the German tax office? 

The German tax office typically sets a strict 30-day deadline from the date of the letter. If you need more time, an extension should be requested before this period expires. 

2. Can I handle a reminder myself without a German tax consultant?

You are not required to involve a German tax consultant to resolve your issues with the tax office. However, if your situation involves cross-border taxation, foreign rental income, stock options, or double-taxation considerations, working with an international tax advisor is often advised. 

3. What happens if I ignore the letter from the tax office? 

Ignoring official tax office letters triggers automated escalation under German law: late surcharges (Verspätungszuschlag under § 152 AO), formal penalty warnings (Zwangsgeld under § 329 AO), and an official estimated tax bill (Schätzung under § 162 AO), which assesses your taxes based on conservative, unfavorable assumptions. 

4. Does hiring a tax consultant stop penalty proceedings immediately? 

If properly executed, yes. Once you grant Power of Attorney (Vollmacht), the tax office should be notified electronically. This officially halts administrative escalation and grants you an immediate extension to prepare and submit your income tax return. 

Invest Your Time and Energy in What Matters 

Do not let a notice from the German tax office impact your peace of mind. Our team at Prinz.tax ensures compliance, tax efficiency, avoidance of double taxation, and stress-free handling of your German tax return. We want you to enjoy your life in Germany and spend your time with your family rather than taxes. 

Do you need assistance with similar or other tax questions?

Get professional help from our experienced tax consultants. If you are unsure about your tax residency, filing requirements, or cross-border income, professional guidance from Prinz.tax can help ensure compliance and avoid unnecessary tax burdens.

About the Author

Written by David Prinz, German Tax Advisor (Steuerberater), German Public Accountant (Wirtschaftsprüfer) and U.S. Certified Public Accountant (CPA), specializing in cross-border taxation for expats in Germany.