The W-9 is an Internal Revenue Service (IRS) form in which a taxpayer provides their correct taxpayer identification number (TIN) when requesting a payment from UMB. Because UMB Quantum Financials supplier information must match the State of Maryland vendor information, a W-9 is required whenever there is a change to the information on file at the State. For example, a name or address change requires an updated W-9. The Office of the Controller-Disbursements will contact the department if a W-9 is required.

• Submitted W-9 forms must be signed within one year of the submission date. Please do not submit a W-9 form that was signed more than one year before the submission date.
• Submit W-9 forms through the webform.