Posted: Mon Jul 14, 2008 9:18 am-
Basic rate in the UK is 20% I think, top rate is 40% (there is a 10% rate for low-income earners but they keep on about abolishing it). But I wouldn't worry about it because if you're paying a different rate merely because you don't have an NI number, you can claim it back from HMRC when you get it.
The 40% rate kicks in at £36,000, 20% below that. Basic personal allowance is around £5,500, so work it out from that. £7,700 in income tax roughly. But there are other taxes, the main one being NI. Have a go with this:
http://listentotaxman.com/
If you're planning on staying in the UK temporarily, you might be better off tax-wise to claim the tax treaty exemption. This essentially exempts you from UK payroll taxes entirely and you simply declare your UK income on your T1. It'll probably work out cheaper from a tax standpoint, although I haven't calculated it exactly and it depends on which Province you reside in.
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Steve.