On the same 65.000 € gross, a worker takes home roughly CHF 20'996 more per year in Switzerland than in Germany. That gap reflects the tax structure alone — before rent, healthcare, or savings behaviour come into play.
Housing is the first multiplier. Germany has moderate rent pressure, while Switzerland has very high rent pressure. That keeps Switzerland's nominal advantage closer to a real-world advantage.
Healthcare and pensions go in the opposite direction. Germany runs a public healthcare model — Statutory health insurance (~14.6% split with employer) gives full coverage. Switzerland uses a public model — Mandatory private health insurance (~CHF 350+/month) outside payroll. 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 comprehensive welfare state in Germany against basic public welfare in Switzerland, plus differences in pension capture, social safety nets, and city-level cost of living.