I second what deedee said. School fees are another example of why you should be looking at your salary only (rather than combining with it benefits) when trying to get a sense of the offer.

londonlad--it depends on the industry, but I would think before taxes. Although some are willing to come for less or based on post-tax income--depends on how much you want to save and how much incentive you need to move to a place with less job security than the UK. My main point is not to include the added benefits in the total sum, because the numbers will be skewed by how expensive housing is here.