What is the difference between an RFP, an RFQ and an RFI?

The name of a request tells you how much effort to put in and how you'll be judged.

At a glance

• RFI: the buyer is exploring the market. Not scored, no contract, a few hours of work. Worth answering, because it gets you known and can shape the tender that follows.
• RFQ: the buyer knows exactly what it wants, such as a number of laptops or days of a named role. Compliance and price decide it. Hours to a day of work.
• RFP: the buyer has a problem and wants your solution. Bids are scored against published criteria, and your method, team and experience matter as much as price. Typically one to three weeks of part-time work for a small firm.

Other names you'll see

• ITT (invitation to tender): the UK and Commonwealth term for much the same as an RFP.
• RFT (request for tender): common in Australia and New Zealand.
• EOI or RFQual: a first stage to show you qualify before the full tender.
• RFSO and RFSA: Canadian requests to get on a standing offer or supply arrangement.
• IFB (invitation for bid): US sealed bidding, judged on price.

Buyers don't always use these names consistently, so read how the request will be evaluated rather than relying on its title. More in RFP vs RFQ vs RFI vs ITT.