Dual Citizenship Germany: Turkey, India, and What Each Country Actually Allows

Germany's 2024 nationality law reform made dual citizenship universally available for naturalization applicants for the first time in the country's modern history. But "Germany allows it" only settles half the question. Whether you actually get to hold two passports depends entirely on whether your home country allows it too.

Turkey and India are two of the largest groups affected by this change — and they have diametrically opposite policies.

Germany's Side of the Equation

Since June 27, 2024, Germany no longer requires applicants to renounce their previous nationality as a condition of naturalization. Under the old law, most non-EU/Swiss nationals had to formally give up their birth citizenship before receiving the German certificate. This rule was the primary reason millions of long-term residents — particularly Turkish nationals who had lived in Germany for decades — did not naturalize.

The 2024 reform removed that requirement completely. Germany's position is now simple: you may hold as many nationalities as you like.

Germany and Turkey: Full Dual Citizenship on Both Sides

Turkey has permitted dual citizenship for its nationals since 1981. This means a Turkish national can hold a German passport and a Turkish passport simultaneously, with no legal issue on either side.

What changed in 2024: Previously, Turkish nationals in Germany who wanted to naturalize faced a dilemma — they had to formally renounce Turkish citizenship to obtain the German passport. Many chose not to. The Mavi Kart (Blue Card in Turkish law — unrelated to the EU Blue Card work permit) emerged as a workaround: Turkish nationals who had renounced for German citizenship could use the Mavi Kart to retain some rights in Turkey, but it was a poor substitute for full citizenship. Since 2024, the Mavi Kart is no longer needed for new naturalizations — Turkish nationals simply keep their passport.

Turkish nationals represent the largest non-EU group in Germany with over 2.8 million people of Turkish origin. The 2024 reform triggered a 110% increase in Turkish naturalizations in the first year — the clearest signal of pent-up demand that had been blocked by the dual citizenship prohibition.

Military service: Germany and Turkey have a bilateral agreement on military service. Dual German-Turkish citizens who have fulfilled military service in one country are generally exempt from service requirements in the other. If you have not yet completed Turkish military service and are between the applicable age range, clarify your specific situation with the Turkish Consulate before submitting your naturalization application.

Doppelte Staatsbürgerschaft Türkei Deutschland: In German-language searches, this phrase (double citizenship Turkey Germany) leads to the same answer — it is fully legal on both sides since the 2024 reform.

Germany and India: Legal Tension Between Two Systems

India's position is the reverse of Turkey's. Article 9 of the Indian Constitution states that an Indian national who voluntarily acquires the citizenship of a foreign state ceases to be an Indian citizen. Germany's 2024 reform changed German law — it did not change the Indian Constitution.

What happens when an Indian national naturalizes as German: Germany does not require you to formally renounce Indian citizenship before the naturalization. However, the moment you receive your Einbürgerungsurkunde (naturalization certificate), Indian law considers your Indian citizenship to have automatically terminated. You are not required to notify the Indian Embassy before or during the process, but you are legally required to surrender your Indian passport afterward.

The OCI Card pathway: Overseas Citizen of India (OCI) status is the practical solution for most Indian nationals who naturalize German. OCI is not full citizenship — you cannot vote in Indian elections, hold certain government positions, or purchase agricultural land in India. But it provides:

• A lifetime visa to India with no requirement to register with the Foreigners' Division
• The right to live and work in India for unlimited duration
• The ability to open bank accounts and hold most property
• Parity with Indian citizens for most economic activities

To apply for OCI, you return your Indian passport to the Indian Embassy in Berlin and submit the OCI application. In 2026, the process was further digitized with the introduction of e-OCI cards, though the physical OCI booklet remains available.

Document sequence for Indian nationals:

1. Receive your German Einbürgerungsurkunde
2. Apply for your German passport (and ID card if desired)
3. Go to the Indian Embassy in Berlin with your Indian passport, German naturalization certificate, and OCI application
4. Surrender the Indian passport; receive acknowledgment
5. OCI card is issued (current processing: 2–4 months in 2026)

The documentary chain for Indian nationals going through German naturalization is more complex than for most other nationalities — apostilled birth certificates, the Surrender Certificate, OCI timing — all of which need to be planned in advance.

China: No Dual Citizenship, Full Loss

China does not permit dual citizenship. Chinese law provides that a Chinese national who voluntarily acquires foreign citizenship automatically loses Chinese citizenship. There is no OCI-equivalent in China. If you are a Chinese national who naturalizes as German, you lose Chinese citizenship, with no pathway to retain any formal status in China as a Chinese national.

In practice, many Chinese-German dual nationals exist in a grey area because Chinese authorities may not be immediately notified of a foreign naturalization. However, if you present your Chinese passport at a Chinese border, your status may be reviewed. This is a risk area that requires careful legal advice.

Practical Implications for Pension and Social Security

For Turkish dual citizens: Germany and Turkey have a bilateral social security agreement. Pension contributions made in Germany and Turkey are generally coordinated, preventing double contributions and allowing combined credits for minimum contribution periods. If you have worked in both countries, you may be eligible for pension payments from both systems.

For Indian OCI holders: India does not have a comprehensive bilateral social security agreement with Germany. Your German pension contributions will be governed by German law; any pension entitlements in India (from prior Indian employment) remain governed by Indian law separately.

The Bottom Line

If you are Turkish and living in Germany: the 2024 reform was specifically the change you were waiting for. Dual citizenship is now fully legal on both sides, and the application process for German naturalization is available after five years of qualifying residence (or three years if married to a German citizen).

If you are Indian and living in Germany: dual citizenship in the traditional sense is not available. German naturalization means the transition from Indian citizenship to OCI card status. Most Indian professionals who naturalize German report that OCI provides sufficient practical access to India for their needs.

For country-specific documentation chains, a complete breakdown of how German naturalization interacts with your home country's citizenship rules, and the step-by-step application guide, see /de/citizenship/.

See more Germany guides →