Starting today, Amazon is increasing their monthly membership fee for Amazon Prime from $10.99 to $12.99, according to Recode. That’s an increase of 18% and works out to $156 per year if you’re paying monthly. Prime Student’s monthly fee is also increasing from $5.49 to $6.49. The annual membership fee of $99 for Amazon Prime is not increasing. Neither is the $8.99 per month fee for just Prime Video. If you’re subscribed to Amazon Prime on a monthly basis for more than 7 months out of the year, it now makes more sense to switch to the annual membership.