Giggey:
As a Contractair employee you pay taxes in UK not in Belgium.
Taxes, or National Insurance? Paying N.I. in the UK, for aircrew working in Europe, has not been legal since 2012.
European Commission - PRESS RELEASES - Press release - Social security: improved and simplified rules for aircrew and cross-border self-employed workers
[ARCHIVED CONTENT] HM Revenue & Customs: National Insurance: New EU rules for flight and cabin crew working in two or more Member States
If Contractair are paying N.I. in the UK, this is decidedly - errr - against the rules. Unless you know of any way around this regulation.
How is this being achieved, exactly?