Tax Counseling for the Elderly (TCE) does not have an income limit, only an age limit and some specific out-of-scope forms.
My VITA site, which is a mid-size non-profit, will let employees, volunteers and their friends/family do their taxes with the same quality review as we do for our clients, so I'm not at all surprised that AARP has decided to extend this to members. I'm sure that's about the same small percentage of people who fall outside of the program target clientele as AARP members who are under 60.
Also, given that my site deals with a lot of immigrants, we offer ITIN applications as well, which is specifically out of the VITA scope. I think that means it's not covered by the grant? It is a different staff member who coordinates it.
If anyone here meets the VITA income/form guidelines and wants free DIY taxes, check out:
https://www.irs.gov/filing/free-file-do-your-federal-taxes-for-freeBe warned, though, if you're outside the 12 states for Direct File and need to use a partner site, most of them will try to upsell you on their paid versions. This is incredibly unethical and why I will never give them another dime, but there IS a free option if you click around enough. (I personally use Free Fillable Forms and submit my state taxes on paper.)