it's permanently gone and the IRS won't have a coy either. both only keep returns for 6 years
a wage and income transcript might be available at the IRS
https://sa.www4.irs.gov/secureaccess/ui/?TYPE=33554433&REALMOID=06-00008e4d-63f6-1187-a229-7c2b0ad00...
copies of w-2's can be obtained from the social security Adm
https://faq.ssa.gov/en-us/Topic/article/KA-02501
it's advisable to save a pdf copy of the return.
