sql server - SQL Subtract exactly a year

Question

First I want to thank everyone for helping me, It gave me a lot of ideas on how I should do this and I came up with my own method I just need help putting it into a query

I want the user to input a date, then get the current year. subtract the two and then do the dateadd that everyone was posting. Is this possible and what is the best way to do it?

year(getdate())-@DYYYY=Y 
dateadd(year,-Y,getdate())

Answer 1

Use this:

dateadd(year, -1, getdate())