"New York State will contribute $600 million in funding with Erie County contributing $250 million, the Bills contributing $350 million, and the National Football League via a G-4 loan $200 million. In addition the Bills signed a 30-year lease, with a buyout option after 15 years. The stadium would be owned by New York State, a change from the current stadium which is owned by Erie County. Of that $600 million funding, $418 million will come from funds seized from the Seneca Nation of New York for funds overdue as part of the compact to operate the Seneca Niagara Casino, Seneca Allegany Casino and Seneca Buffalo Creek Casino.[30] The state will also contribute $100 million over a 15-year period for maintenance and $6 million per year over the course of the lease for capital improvements, both figures to be adjusted for inflation according to the Consumer Price Index.
On August 9, 2023, the Associated Press reported that the costs of the stadium had increased by $300 million due to "increased labor and material costs" of which the owners of the Bills are contractually obligated to pickup due to the agreement."