Fullformexpand.com, 2026. "PFTG." Accessed April 27, 2026. https://www.fullformexpand.com/pftg/pre-filing-and-technical-guidance-large-and-mid-size-business-division-us-irs.
"PFTG." (n.d.). Fullformexpand.com. Retrieved April 27, 2026, from https://www.fullformexpand.com/pftg/pre-filing-and-technical-guidance-large-and-mid-size-business-division-us-irs.
PFTG. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/pftg/pre-filing-and-technical-guidance-large-and-mid-size-business-division-us-irs (Accessed: 27 April 2026).