Alternative bid

An alternative bid (also known as variant bid), is a tender submission that intentionally deviates from the original specifications outlined in the tender documents, offering a different approach that still aims to meet, or exceed, the buyer’s core requirements. Rather than strictly following the requested solution, the bidder proposes an innovative or cost-effective alternative that may deliver enhanced value, improved performance, or more efficient outcomes. This type of bid demonstrates the supplier’s flexibility, expertise, and creativity in addressing the buyer’s needs. However, such bids are only considered if the tender explicitly permits variants; otherwise, they may be deemed non-compliant or non-responsive.

In many cases, to reduce risk and ensure fairness, a variant bid must be submitted alongside a fully compliant bid, enabling the contracting authority to evaluate both side by side. In public procurement, contract notices under OJEU regulations typically include clear instructions on whether variant bids are accepted. This ensures transparency and helps avoid legal challenges. Overall, alternative bids offer a structured chance for bidders to stand out by proposing potentially superior solutions—provided they’re allowed by the procurement process.