Under certain circumstances, the winning bidder on a fixed-price contract may offer $0.00.
In a recent decision, LCPtracker, Inc.; eMars, Inc., B-410752.3 et al (Sept. 3, 2015), the GAO held an offeror submitting a zero-dollar offer (that is, an offer for $0.00) was eligible to receive a fixed-price contract because both the Government and the contractor would receive benefits under the contract.