We will request your German tax ID and your church tax code from the Federal Central Tax Office (BZSt) free of charge.
We need your consent for this. Every citizen can object to the automated data retrieval of religious affiliation from the BZSt in writing, stating their tax ID. If you submit an objection to the BZSt using the Erklärung zum Sperrvermerk form, your tax office will ask you to submit a church tax return.
If you are also liable to pay tax outside Germany, you must provide all other tax IDs.