On the same 65.000 € gross, a worker takes home roughly 1.544 € more per year in Germany than in Romania. That gap reflects the tax structure alone — before rent, healthcare, or savings behaviour come into play.
Housing is the first multiplier. Romania has low rent pressure, while Germany has moderate rent pressure. That keeps Germany's nominal advantage closer to a real-world advantage.
Healthcare and pensions go in the opposite direction. Romania runs a public healthcare model — Public CASS-funded system, often supplemented privately for faster access. Germany uses a public model — Statutory health insurance (~14.6% split with employer) gives full coverage. The country with lower take-home often shifts costs that the other country leaves to your private budget.
Net-of-everything, a relocation decision should weigh basic public welfare in Romania against comprehensive welfare state in Germany, plus differences in pension capture, social safety nets, and city-level cost of living.