This sort of situation is handled for income taxes under something called a "claim of rights."
You can take a current year deduction or take a credit in the current year for the taxes you "overpaid" in the prior years. In order to take a credit for the overpaid taxes in the prior years you need to be able to re-calculate those taxes assuming that you didn't receive the income for each of these years, something that's more easily done if you have TurboTax programs installed on your computer for those years and the associated tax files (.taxXXXX).
This answer here:
https://ttlc.intuit.com/questions/3661571-in-2016-i-repaid-a-salary-amount-of-3-332-reported-as-inco...
discusses a similar situation, with only one "prior year" involved.
Tom Young
