Have a Tax Question? Ask a Tax Expert
You can always start by contacting your employers from those years and requesting a copy of your w2's.
If you cannot do that or you cannot remember where you worked, I suggest you contact the IRS to get a printout of your income for each year. This will give you the names of the employers and the amount you earned at each job. Use this list to get copies of w-2 forms if possible. You may use the list to make Form 4852 (Substitute w-2) for each if the w-2 forms are no longer available.
I hope this helps!
The IRS will provide you with a list just like they would for someone with no tax problems.
They will cooperate.
You are the only one who can request your records.