 The AAT has approximately 2,500 licensed bookkeepers (from a total membership of 140,000).However, AAT also offer higher level qualifications which enable the holder to gain "licensed accountant" status, of which there are 4,250 (2019).Licensed AAT accountants are MAATs (Members of AAT) of if they have five years of experience and an unblemished record they can take advantage of the FMAAT (Fellow) designation.