Last updated: November 14, 2026
An RFI (request for information) gathers market information before a buyer defines requirements. An RFP (request for proposal) asks suppliers to propose a solution and price for a defined need and is evaluated on value. An RFQ (request for quotation) asks for prices on clearly specified goods or services and is usually decided mainly on price.
Knowing which document you are answering changes how much effort to spend and what to emphasize.
| Factor | RFI | RFP | RFQ |
|---|---|---|---|
| Purpose | Learn about the market and options | Choose the best solution and value | Get prices for defined items |
| Stage | Early, before requirements are final | After requirements are defined | When specifications are clear |
| Evaluation | Not formally scored in most cases | Scored on several criteria | Mainly price, plus compliance |
| Supplier effort | Low to medium | High | Low to medium |
| Leads to | RFP, RFQ or no purchase | Contract award | Purchase order or contract |
Treat an RFI as a chance to shape requirements. Explain your approach, share relevant experience and suggest requirements that play to your strengths, without over-committing on price. In government markets, sources sought notices and RFIs are often how agencies decide whether to set aside work for small businesses.
RFPs reward compliance and persuasion. Build a compliance matrix, develop win themes and write to the scoring criteria. Our guide on how to write an RFP response covers each step.
RFQs reward accuracy and speed. Confirm you meet the specifications, price competitively, state lead times and terms clearly and submit on time.
The RFI usually comes first to inform requirements, followed by an RFP or RFQ.
A quotation can become binding once accepted, depending on its terms and applicable law. Read the RFQ terms carefully.
Yes, but responding to the RFI helps you understand and influence the requirements.
An invitation to tender is the UK and international term for a formal request for bids, similar to an RFP.
Use RFIs to shape, RFPs to persuade and RFQs to price precisely. Match your effort to the document, and use a bid/no-bid framework before investing in a full proposal.
For more rankings, comparisons and guides on this topic, visit the Proposals, RFPs & Bid Management hub.