On the same 65.000 € gross, a worker takes home roughly R$ 17.394 more per year in Brazil than in Germany. That gap reflects the tax structure alone — before rent, healthcare, or savings behaviour come into play.
Housing is the first multiplier. Brazil has moderate rent pressure, while Germany has moderate rent pressure. The two markets behave similarly, so most of the gross-to-net advantage flows straight into disposable income.
Healthcare and pensions go in the opposite direction. Brazil runs a universal healthcare model — SUS universal healthcare; private cover used by middle and upper income. 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 strong public welfare in Brazil against comprehensive welfare state in Germany, plus differences in pension capture, social safety nets, and city-level cost of living.