The Seat of Government Acceptance Act 1909 is an Australian Commonwealth Government act, that in conjunction with the Seat of Government Surrender Act 1909 transferred land from the state of New South Wales to the Commonwealth for the creation of the Federal Capital Territory (now Australian Capital Territory).
The act was signed on 13 December 1909 by the Governor-General Lord Dudley. The Seat of Government Surrender Act 1909 was passed by the New South Wales government the following day, creating a site for the national capital in law.