German Tax Assessment Appeal 2026: Filing an Einspruch as a GmbH or Self-Employed
Wrong tax assessment? You have one month to file an objection. Here's the step-by-step process for GmbH directors and self-employed in Germany – deadline, content and suspension of enforcement.
- Category
- Taxes
- Updated
- Author
- Diana
If you're self-employed or run a GmbH in Germany, never file the tax assessment letter (Steuerbescheid) without reading it. The Finanzamt makes mistakes – and you have exactly one month to challenge it before the assessment becomes final.
Key facts up front
- Deadline: one month from service. Since 2025, an assessment is deemed served on the 4th day after dispatch (§ 122 (2) AO), no longer the 3rd.
- Form: free and informal – by ELSTER, letter, fax, or email to the Finanzamt that issued the assessment. No tax advisor or lawyer needed.
- You still have to pay – unless you also apply for suspension of enforcement (Aussetzung der Vollziehung, § 361 AO).
- Success rate: roughly two out of three objections lead to a change in the taxpayer's favour (Federal Ministry of Finance statistics).
- Risk: the Finanzamt may re-examine the entire assessment – in theory even against you (Verböserung). But it must warn you first and let you withdraw.
What is an Einspruch and when is it worth filing?
An Einspruch (§ 347 AO) is the free, out-of-court appeal against a tax assessment. It's worth filing when:
- The Finanzamt rejected business expenses you can document
- Input VAT was denied even though the invoice meets all formal requirements
- Estimated assessments are too high because a return wasn't filed
- Loss carryforwards weren't taken into account
- You spot a mistake in your own tax return
An objection is also the right tool to keep an assessment "open" while a test case is pending before the Federal Fiscal Court or the Constitutional Court. If the proceedings are suspended (§ 363 AO), you automatically benefit from a later taxpayer-friendly ruling without having to sue yourself.
The number that matters: one-month deadline, now 4-day service
The objection deadline is one month from the date the assessment is served (§ 355 AO). By postal delivery, the assessment has been deemed served on the fourth day after dispatch since 1 January 2025 (§ 122 (2) no. 1 AO). Until the end of 2024 it was three days – the extension came with the Postal Law Modernisation Act, because post now has longer permitted delivery times. If the fourth day falls on a Saturday, Sunday, or holiday, it shifts to the next business day (§ 108 (3) AO).
Here's how to calculate the deadline in practice:
| Step | Example | Legal basis |
|---|---|---|
| Date of assessment | Fri, 15 May 2026 | dispatch to post |
| + 4 days = deemed served | Tue, 19 May 2026 | § 122 (2) AO |
| + 1 month = deadline | Fri, 19 June 2026, midnight | § 355 AO |
A late objection is dismissed as inadmissible – the assessment becomes final and can only be changed in exceptional cases (§§ 172 ff. AO). So write the deadline in your calendar the moment the assessment arrives. If the bureaucratic German in the letter is hard to parse, see our guide on understanding Finanzamt letters.
How to file an objection – step by step
- Form: in writing – by ELSTER, letter, fax, or email to the Finanzamt that issued the assessment. No lawyer required.
- Content: “I hereby file an objection (Einspruch) against the assessment dated [date], tax number […].” The justification can be added later.
- Justification: identify the disputed item and attach supporting documents if available.
- Confirmation: the Finanzamt sends an acknowledgment of receipt.
This wording is already enough: "I hereby file an objection against the income tax assessment 2024 dated 15 May 2026. I will submit the justification within four weeks." Nothing more is needed to meet the deadline – the substantive reasoning follows separately.
Important: while the objection is pending, you still have to pay the disputed tax – unless you also apply for suspension of enforcement (Aussetzung der Vollziehung).
Apply for suspension of enforcement (AdV)
Together with the objection, you can request suspension of enforcement (§ 361 AO). The Finanzamt then puts the payment on hold until the objection is decided – you only pay the disputed tax if the objection is ultimately rejected.
AdV is granted when there are serious doubts about the legality of the assessment, or when immediate payment would cause undue hardship. Watch out: if the objection is dismissed, suspension interest of 0.5% per month (6% per year, § 237 in conjunction with § 238 AO) applies – more expensive than most bank loans. So AdV is worth it mainly when your chances are good. If you're unsure, it's often cheaper to pay the disputed tax first; if you win, the amount is refunded with 0.5% interest per month in your favour.
Einspruch or a simple amendment?
Not every mistake needs a formal objection. For a single, undisputed point – a forgotten receipt, say – an application for a simple amendment (schlichte Änderung, § 172 (1) no. 2a AO) is often enough. It has the same one-month deadline, but different consequences:
| Criterion | Objection (§ 347 AO) | Simple amendment (§ 172 AO) |
|---|---|---|
| Scope of review | entire assessment re-examined | only the requested point |
| Worsening possible | yes | no |
| Suspension of enforcement | yes | no |
| Can suspend proceedings | yes (§ 363 AO) | no |
| Deadline | 1 month | 1 month |
In short: the objection is the stronger, more flexible tool (suspension, staying, multiple disputed points). The simple amendment is the lean route for a single clear error – without the risk that the office reopens the whole assessment.
Beware the Verböserung
Once you file an objection, the Finanzamt re-examines the entire assessment – not just the point you disputed. If it finds an error against you, it may make the assessment worse (Verböserung, § 367 (2) AO). Example: you dispute rejected travel costs, and the office discovers unreported income in the process.
The good news: the office must warn you first (Verböserungshinweis) and give you the chance to withdraw the objection. If you withdraw in time, the original assessment stands. In practice, worsening is rare – but if you know something else is amiss, the simple amendment is the safer choice.
Common mistakes in tax assessments
- Missing receipts: business expenses denied because the original was required and you only submitted a scan.
- Prepayments not credited: paid tax prepayments weren't applied.
- Estimated assessment: if you didn't file a return, the Finanzamt issues an estimate with high assumptions. An objection plus the missing return usually fixes it.
- Wrong loss carryforward: prior-year losses weren't carried forward.
- Double taxation: foreign income or reverse-charge amounts handled incorrectly.
- Your own tax-return errors: sometimes the mistake is yours – an objection lets you correct your own return before the assessment becomes final.
Also check whether the assessment carries a reservation of review (Vorbehalt der Nachprüfung, § 164 AO). As long as that note is set, the assessment can be changed at any time – a formal objection is often unnecessary, an informal amendment request is enough.
Missed the deadline? Reinstatement to the previous status
If you missed the one-month deadline through no fault of your own – a hospital stay, or the assessment provably never arrived – there is reinstatement to the previous status (Wiedereinsetzung in den vorigen Stand, § 110 AO). You then have to file the objection within one month of the obstacle ending and credibly show the reason. Mere forgetfulness or holiday doesn't count. Important: if you plausibly deny receiving the assessment, the Finanzamt has to prove actual receipt – the 4-day rule doesn't apply then.
How often do objections succeed?
An objection is statistically surprisingly promising. According to the Federal Ministry of Finance's annual objection statistics, around two-thirds of processed objections are decided in the taxpayer's favour – the assessment gets changed. Only about one in five objections is rejected by a formal objection decision; the rest are withdrawn. A large share of the changes simply come from receipts or returns being submitted after the fact. That shows: the effort of a well-reasoned objection pays off in the vast majority of cases.
Lawsuit at the tax court – when does it make sense?
If your objection is rejected by an objection decision (Einspruchsentscheidung), the next step is a lawsuit at the tax court (Finanzgericht) – within one month of the decision being served. Court fees start around €300, and proceedings often take 1–3 years. Worth pursuing for larger disputed amounts or fundamental legal questions – for example after a tax audit with substantial back-taxes, where hiring a tax lawyer usually pays off.
How to avoid disputes with the Finanzamt
Most objections are filed because the original return had gaps or missing documentation. With clean, AI-supported bookkeeping that rarely happens. Norman assigns each receipt to the correct account automatically, sanity-checks the VAT return, and files GmbH taxes and self-employed taxes directly through ELSTER.
Filing it right the first time means fewer wrong assessments – and when one does come, every receipt is already digitally sorted. File late, on the other hand, and you risk a late-filing penalty before the assessment even arrives.
The starter book for your self-employment
Free e-book: registration, accounting, your first invoice, and taxes, plus a tax calendar, deductions cheat sheet, and invoice template.
Frequently asked questions
Does an objection cost anything?
No. The objection procedure at the Finanzamt is free – unlike a later lawsuit at the tax court. Costs only arise if you hire a tax advisor or lawyer to write the justification.
Can I file an objection by email?
Yes. The objection is informal and can be filed by email, ELSTER, fax, or letter (§ 357 AO). All that matters is that it reaches the Finanzamt on time and clearly identifies the assessment.
Do I have to pay the tax while the objection is pending?
In principle yes. The objection has no suspensive effect. Only if you additionally apply for suspension of enforcement (§ 361 AO) and it is granted does the payment obligation pause until the decision.
How long does processing an objection take?
It depends on the Finanzamt and the complexity – from a few weeks to several months. Simple cases (a submitted receipt) are often fast; for disputed legal questions the proceedings may also be stayed until a test case is decided.
What happens if I miss the objection deadline?
The assessment becomes final. A change is then only possible through reinstatement to the previous status (§ 110 AO) for an unavoidable missed deadline, or through specific correction provisions (§§ 172 ff. AO).
Bottom line
A tax assessment is not a verdict – it's a proposal from the Finanzamt. You have exactly one month to review it, and a simple Einspruch keeps every option open. Most important rule: write the deadline in your calendar the moment the assessment arrives, and never file it away unread. And because around two-thirds of all objections succeed, the effort is almost always well spent.
Make the next assessment right the first time
Most objections come from incomplete returns. Norman assigns every receipt to the correct account, sanity-checks your VAT and annual returns, and files them straight to ELSTER – so the assessment comes back wrong far less often. Try the AI bookkeeping for free.