It depends; in the past qualifications were not needed, just the right person for the job, this still happens occasionally depending on the headteacher and/or the LEA. In our LEA there tends to be 2 grades of TA's - 1 and 3. For the 1 the LEA asks for aminimum of a Level 1 qualification but prefer level 2 (which means they really want a level 2 but ideally 3) and for a 3 they ask for a minimum of a level 3 but prefer an level 4 qualification. In the school I worked last year the HT said she would not employ a Level 3 TA without a minimum of a level 3 qualification and at least 5 years experience. But all the qualifications in the world won't get you a job unless you are the right person for that particular job - many jobs go to people who have been volunteering at the school that has the vacancy.