While actual salary might not be interesting, how much taxes will affect your gross income is. Tax rules are often very convulted. If you collected gross salary and received salary after taxes numbers, that'd be a great resource. I've moved abroad and all you get usually is vague statements about tax pressure (ie. asking a range of people you get wildly different answers). Often this is related to your income level in non-obvious ways as well. A table for each city with mapping from gross income -> income after tax would be very helpful.