Automaticly delete from collection

Hi, I have a site that sells Language lessons and I have few plans customers can purchase (annual,mothly,unlimited).
The access to the lessons is made by a query that looks for a match between the email of the logged in member to an email in the paid members collection.
I wanted to know if theres an option to delete members from the collection after certain time.
For example if a customer purchased an annual plan in 1/1/2017
I want him to be deleted from the collection a year later in 1/1/2018.
Thanks.

you could write a function that checks them every time someone is logging in and change to expired or just check an expiration date everytime they log in and if expired ask them to buy a new one. deleting stuff is always bad for data analysis so make a field / flag DELETED that you set true or false whenever you need this function.

Thanks for your kind answer, Im going to try that and I let you know if Im having any problems.