On the same 750 000 kr gross, a worker takes home roughly 80 793 kr more per year in Norway than in Sweden. That gap reflects the tax structure alone — before rent, healthcare, or savings behaviour come into play.
Housing is the first multiplier. Sweden has high rent pressure, while Norway has high 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. Sweden runs a universal healthcare model — Universal regional healthcare with capped patient fees. Norway uses a universal model — Universal public healthcare with small patient co-pays. 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 Sweden against comprehensive welfare state in Norway, plus differences in pension capture, social safety nets, and city-level cost of living.