Yes.Behind the line, but never forward to the center.
Handoffs are legal in any direction as long as both players are behind the line of scrimmage, the ball hasn’t been carried past it and possession hasn’t changed.
The one exception is the center: the snapper can’t receive a forward handoff. A backward pitch to the center, or a forward pass to them past the line, is fine.
The rule
IFAF Flag Football Rules 2023, R 7-1-5
The call
Illegal handoff: 5 yards from the spot of the handoff, plus loss of down (signal S19).
S19 False start, illegal procedureRoll the forearms in front of the chest.
NFL FLAG
NFL FLAG goes further: the quarterback can’t hand off or pitch to the center at all.
