Can anyone clarify the rules re. opting into TPS pre 2007? I am employed very part-time (2 hours a week) in an independent school, and have only very recently got them to start paying into my TPS. When I started employment in 2005 they originally said that my higher rate of pay compensated for no benefits such as pension, sick pay etc, and said I was not entitled to join the scheme. I contacted the TPS recently, who said that they should have been contributing to the scheme since I started employment and would need to make the full contributions. I know that before 2007 you had to opt in if you were part-time, but what is the legal position on whether or not schools have to let you opt in if you want to, or to inform you that you are entitled to? Interestingly, on my payslips it says 'hourly supply' although I am not a supply teacher, and work for the school, not through any agency. What is the significance of this please? Also, if I have to also make my share of the contributions backdated, how does that work with tax as I have already been taxed on that income, whereas if I had paid it at the time it would have reduced my taxable income. Many thanks if anyone can enlighten me!