"Annual allowance" refers to the maximum amount of something, usually money, that you are allowed to receive, use, or save within a year. Full definition
Buying the full annual allowance of 200,000 LifeMiles would see you net 490,000 miles (after the bonus) at a cost of $ 6,600: (travelingformiles.com)
Low $ 10 co-pay for exams and a $ 25 co-pay for materials with a $ 130 annual allowance for either contact lenses or eyeglass frames. (nationwide.com)
The Regulations also made consequential amendments to the QROPs Information Regulations to reflect the reduction in the level of the money purchase annual allowance from # 10,000 to # 4,000 with effect from 6 April 2017. (shlegal.com)