text: how long should i hold onto old tax stuff? i have my tax records, etc. from all the way back to 1995. how many years back to i need to save? what is the furthest back that they can audit you, etc? i am not making this up.  they can audit from 6 years back so keeping the last 7 is a good idea.  i now this because my niece is an accountant and i asked her.