Form 4852 is a substitute for Forms W-2, W-2c, and 1099-R that individuals can use when their employer or payer does not provide the correct tax form or when an incorrect form is issued. The form is attached to the individual's tax return and provides wage, tax, and distribution information to calculate taxes owed. It requires the individual's efforts to obtain the correct form and an explanation of what was done to get the proper documentation from the employer or payer be provided.