Correcting a German Tax Return After Filing: Every Route

Submitted, then spotted the mistake: forgotten work expenses (Werbungskosten), a typo in a number, a missing item. No panic, every German tax return can be corrected. What matters is only how far your case has moved: assessment (Bescheid) not there yet, Bescheid freshly arrived, or objection window already closed. Each of the three situations has its own tool.

The short version

• Bescheid not there yet? Simply submit a corrected return. The Finanzamt processes the latest version, and there is no penalty.
• Bescheid arrived? You have one month: an objection (Einspruch) reopens the whole case, a request for simple amendment (§ 172 AO) changes single points only.
• Window closed? Then the Bescheid is final and binding (bestandskräftig). Changes remain possible only in narrow exceptions, such as new facts (§ 173 AO).
• Tax set too low? You must notify the Finanzamt without delay (§ 153 AO). Staying silent risks a tax-evasion accusation.
• Errors at your own expense you may correct, but you do not have to.

The three situations at a glance

Before the Bescheid, correcting is easiest: you send the complete, corrected return once more. The Finanzamt processes the version that arrived last, with no surcharge, no penalty, no downside.

After the Bescheid, the one-month objection window starts with its notification. Inside this window, both tools are open to you, more on that below.

Once the window has closed, the Bescheid becomes final and binding. A change then works only if a specific provision allows it, for example for facts that become known to the Finanzamt only afterwards (§ 173 AO). Do not count on that: if you know about the mistake, act inside the one-month window.

These rules cover returns you have already filed. Whether you can or must still file for other years is in our deadlines overview.

One month after the Bescheid: objection or simple amendment?

The objection reopens the complete case: the Finanzamt reviews the Bescheid in every direction, including points you never raised. It is the right tool when several positions are wrong or you disagree with the assessment as a whole.

The request for simple amendment (Antrag auf schlichte Änderung, § 172 AO) is the smaller instrument: you name exactly the points to change, and only those are decided. The risk that the Finanzamt takes the opportunity to change other positions against you does not exist here. For a single forgotten item, it is often the more relaxed route. Both requests must reach the Finanzamt within the one-month window.

Is it even worth it? A mini example: you forgot €300 of work expenses, say a training course. If that puts you above the flat work-expenses allowance, the correction returns around €90 at a marginal tax rate of 30%. Objection and simple amendment cost nothing, and the effort is a short message to the Finanzamt. €90 for a few minutes is a good hourly rate.

Tax set too low? Then you are under a duty

If you notice after filing that your entries were wrong or incomplete and that too little tax was assessed as a result, you are legally obliged to notify the Finanzamt without delay and set the record straight (§ 153 AO). That applies, for example, to forgotten side income.

If you know about the mistake and stay silent, a harmless slip can turn into a tax-evasion accusation. A prompt notification takes the heat out of the case: you report the error, hand in the correct numbers, and the Finanzamt corrects the Bescheid.

The duty does not run the other way: if the error is at your own expense, say forgotten deductions, you may correct it, but you do not have to. There, only you lose money by doing nothing.

Correcting with Norman

With Norman, a correction is not a special case: it runs through the same guided flow as the return itself. You answer the questions with the right numbers and refile via ELSTER, without needing your own ELSTER account. The tax return costs €19 one-time per tax year, you pay only when you submit, and joint filing is included. If you prefer, you can handle the correction from Claude or ChatGPT as well.

FAQ

Can I still change my German tax return after submitting it?

Yes. As long as the Bescheid has not arrived, you simply submit a corrected return, and the Finanzamt processes the latest version. After the Bescheid you have one month for an objection or a request for simple amendment.

What is the difference between an objection and a simple amendment?

The objection opens the whole case: the Finanzamt reviews the Bescheid completely, in both directions. The simple amendment (§ 172 AO) changes only the points you name, and all other positions stay untouched. For single forgotten items it is often the safer choice.

Will I be penalized for a mistake in my tax return?

Not for an honest one. Before the Bescheid you correct without any consequences. It only gets critical when too little tax was assessed and you conceal the mistake you have spotted: then a tax-evasion accusation is on the table (§ 153 AO).

Do I have to report errors that cost me money?

No. The § 153 AO duty applies only when the tax was set too low. Errors at your own expense you may correct, for instance via an objection or a simple amendment, but you are not obliged to.

The Bescheid is final and binding. Is anything still possible?

Only in narrow exceptions, for example when facts become known to the Finanzamt only afterwards (§ 173 AO). Whether your case qualifies depends on the specifics. So the rule stands: sort out mistakes within the one-month objection window.