On the same € 65.000 gross, a worker takes home roughly 5.352 RON more per year in Romania than in Netherlands. 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 Netherlands has very high rent pressure. That keeps Romania'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. Netherlands uses a public model — Mandatory private health insurance (~€140/month) with regulated 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 Netherlands, plus differences in pension capture, social safety nets, and city-level cost of living.