Of every origin country in this guide, the Philippines has the cleanest path to genuine dual citizenship — paired with Germany’s 2024 reform, it’s about as simple as this process gets.
The Citizenship Retention and Re-acquisition Act of 2003 lets natural-born Filipinos — those who were citizens from birth without needing any act to acquire it — retain or reacquire Philippine citizenship after naturalising abroad, simply by taking an Oath of Allegiance to the Republic at a Philippine embassy or consulate. No renunciation of the other citizenship is required on the Philippine side.
Since Germany dropped its own renunciation requirement in 2024, a natural-born Filipino naturalising in Germany can simply take the RA 9225 oath — no renunciation required by either country. This is the cleanest “both sides agree” outcome anywhere in this guide.
RA 9225’s text is specifically about natural-born Filipinos. Someone who became a Filipino citizen through naturalisation — not by birth — doesn’t have an obviously equivalent path back under this law if they later take another citizenship. This is an inference from the statute’s structure rather than an explicit DFA statement, so if this is your situation, confirm directly with the DFA or Bureau of Immigration rather than assuming.