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Nordrhein-Westfalen

Apply for naturalization in Mülheim an der Ruhr

If you apply for Apply for naturalization in Mülheim an der Ruhr (Nordrhein-Westfalen), expect about approx. 4 months. Einbürgerungsbehörde Mülheim an der Ruhr is responsible.

Last reviewed: August 07, 2026Verified sources:Bundesportal (verwaltung.bund.de)

Quick answer

  1. 1

    Documents you need

    Residence permit · Certificate of Completion of the Naturalization Test · Proof of German language proficiency (B1)

  2. 2

    Costs

    100–110 € Aufenthaltstitel, sonst kostenlos

Processing time

approx. 4 months in Mülheim an der Ruhr

If you apply for Apply for naturalization in Mülheim an der Ruhr, expect about approx. 4 months. Complete documents on first submission are the biggest time factor.

Official: max. approx. 6 months

How to proceed

  1. 1

    Submit an application to the naturalization office

    The local immigration office or naturalization office.

  2. 2

    Take the naturalization test

    33 questions on democracy, the rule of law, and general knowledge about everyday life in Germany; at least 17 correct answers.

  3. 3

    Receive a certificate of naturalization

    Ceremonial presentation at the agency.

Required documents

  • Residence permitMandatory

    Proof of legal residence.

  • Certificate of Completion of the Naturalization TestMandatory

    Certificate from the BAMF confirming that the naturalization test has been passed.

  • Proof of German language proficiency (B1)MandatoryOften forgotten

    B1 language certificate or equivalent proof.

The essentials before applying

Who is eligible?

Foreign nationals who have resided in Germany legally for at least 5 years (3 years in cases of exceptional integration efforts), have a secure source of income, and possess sufficient German language skills.

Income limit

Success rate

approx. 78.0 % (estimate)

Most common mistakes

  • Not prepared to renounce previous citizenship
  • Failed the naturalization test

Common reasons for rejection

  • Unable to support oneself
  • Crime in the pre-application room
  • Lack of German language skills (B1)

Alternatives

  • Check related services in the application assistant
  • Use social counselling before applying

If rejected

File a written objection within 30 days – with reasons why the decision is wrong and any missing evidence.

Everything about Apply for naturalization

Questions & Answers

Do I have to give up my current citizenship?

Generally speaking, yes. Exceptions apply, for example, to EU citizens, stateless persons, and certain countries that do not allow for release.

Freshness & source

Maintenance
Continuously reviewed & updated
Source
Bundesamt für Migration und Flüchtlinge
Data quality
100 %

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