Answer:
Accrual shows face amount as revenue
revenue = $25,000
(12,000) (7/36)= $2,333 (regognized in 2017)
Total income reported in 2017 = $27,333
The next year she would show the remainder of 12,000 from 26 month contract
For tax purposes, max of 2 year deferral for payment recieved in advance.