41 C.F.R. § 302-17.63
Requirement to provide tax information to the agency to make the RITA calculation possible under the two-year process
Employees must provide the information their agency requires to make the RITA calculation. This will include tax information for any Federal and State tax returns filed for the year that the employee received covered taxable relocation expenses. Employees must submit the “required tax information” in Year 2, along with their RITA claim, after they file their income tax return. If an agency pays any taxable expenses covered by the WTA in more than one year, then the employee will have to file a RITA claim each year. Agencies establish the deadline each year for filing of the RITA.