While the form is often used in PDF format for official submissions, automated versions are available for ease of calculation:

Are you navigating the complexities of government treasury claims? If you are a DDO or an employee managing office expenses, is likely a regular part of your paperwork. Often referred to as the "Fully Vouched Contingent Bill," this form is the backbone of claiming reimbursement for everything from medical expenses to monthly utility bills. What is APTC Form 58 Used For?