On the same $150,000 gross, a worker takes home roughly 30,250 د.إ. more per year in United Arab Emirates than in Singapore. That gap reflects the tax structure alone — before rent, healthcare, or savings behaviour come into play.
Housing is the first multiplier. United Arab Emirates has high rent pressure, while Singapore has very high rent pressure. That keeps United Arab Emirates's nominal advantage closer to a real-world advantage.
Healthcare and pensions go in the opposite direction. United Arab Emirates runs a private healthcare model — Employer-provided private insurance is mandatory; quality varies by plan. Singapore uses a mixed model — MediSave/MediShield is mandatory for citizens & PRs; expats use private cover. 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 minimal public welfare in United Arab Emirates against balanced public welfare in Singapore, plus differences in pension capture, social safety nets, and city-level cost of living.