RFP vs RFQ vs IFB: What Each One Means and How to Answer It

You find a government opportunity that fits your business. You open it, and the first thing on the cover page is three letters. RFP. RFQ. IFB. Sometimes something else entirely.

Those letters are not paperwork noise. They tell you how the buyer is going to choose a winner. If you answer an IFB like it is an RFP, or the other way around, you can do good work and still lose.

Here is what each one means and how to answer it.

The short version

• RFP (request for proposal): "Tell us how you would do this and what it costs." The buyer weighs your approach, your experience, and your price.
• RFQ (request for quote): "Tell us what this costs." The buyer has usually defined what it wants and is mostly comparing prices.
• IFB (invitation for bid): "Here is exactly what we want. Give us a sealed price." Usually the lowest responsive, responsible bid wins.

Names vary by agency. A city might call something a request for qualifications, a request for offers, or a competitive sealed proposal. Do not rely on the label alone. Find the section that explains how responses will be evaluated. That section is the real answer to "what kind of solicitation is this?"

RFP: you are being judged on more than price

An RFP is used when the buyer knows the problem but wants vendors to propose how to solve it. Price matters, but it is one factor among several. The others are usually things like your technical approach, your staff, your past performance, and your understanding of the work.

How to answer one:

• Find the evaluation criteria and build your outline from them. If the RFP says it will score "Approach, Qualifications, Past Performance, Price," your response should have those four sections, in that order, with those names. Make it easy for the evaluator to find what they are scoring.
• Answer the question they asked. If the RFP asks how you will handle staff turnover, do not answer with your company history. Answer how you will handle staff turnover.
• Be specific. "We are committed to quality" earns nothing. "Each deliverable is reviewed by a second person before it goes to you" is something an evaluator can score.
• Price it so you can actually deliver. Winning a contract you lose money on is not a win.

If you have never broken an RFP down before, start with how to read an RFP before you bid.

RFQ: price matters most, but not only price

An RFQ is common for smaller or more straightforward purchases. The buyer has usually already decided what it needs. It wants to know what you would charge and whether you can deliver on time.

One technical point worth knowing: under the federal rules, a quote in response to an RFQ is generally not an offer. The government cannot simply accept it and form a contract. Instead, the government issues an order based on your quote, and the contract forms when that order is accepted. State and local rules can work differently, so read the terms in the document you are answering.

How to answer one:

• Follow the format exactly. If they give you a pricing sheet, use their sheet. Do not attach your own instead.
• Quote what they asked for, not what you wish they asked for. If you think a different product or approach is better, you can mention it briefly, but quote the requirement as written.
• Check whether anything besides price is considered. Some RFQs say award goes to the lowest price. Others say "best value," which means delivery time, past performance, or other factors count too. That one line changes how you write the response.
• Keep it short. An RFQ is not the place for a ten-page narrative unless they ask for one.

IFB: the strictest of the three

An IFB is used for sealed bidding. The buyer has written a complete, clear description of what it wants. Bids are usually opened publicly at a set time. Award typically goes to the lowest-priced bid that is both responsive and responsible.

Those two words matter:

• Responsive means your bid follows the instructions and agrees to the terms as written. Change a term, leave out a required form, or add a condition, and your bid can be thrown out no matter how low your price is.
• Responsible means the buyer believes you can actually do the work: you have the capacity, the finances, the licenses, and a record that does not raise red flags.

How to answer one:

• Do not get creative. No alternate approaches, no "we suggest instead," no exceptions to the terms unless the IFB specifically invites alternates.
• Check every required form and signature. A missing acknowledgment of an amendment can be enough to sink a bid.
• Get it in on time. Late sealed bids are usually rejected. Plan to submit the day before, not the hour before.
• Ask questions early. If something in the IFB is unclear or wrong, use the question period. Once bids are opened, there is generally no negotiating.

A quick way to tell which one you are holding

Ask three questions as you read:

1. Does it ask me to describe my approach? If yes, it is acting like an RFP, whatever it is called.
2. Does it say award goes to the lowest price? If yes, it is acting like an IFB or a low-price RFQ. Your job is to be compliant and sharp on price.
3. Does it list several evaluation factors with weights or an order of importance? If yes, you are being judged on best value, and a well-organized response matters as much as the number.

The mistake that costs the most

The most expensive mistake is not a bad price. It is writing the wrong kind of response. A beautiful narrative on an IFB gets ignored. A bare price on an RFP gets scored low on everything else. A sealed bid with a polite "exception" in the cover letter can be tossed out entirely.

Before you write a single word, find the evaluation section and the instructions to bidders. Read them twice. Then write the response that document is asking for.

Questions people ask

What is the difference between an RFP and an RFQ?
An RFP, or request for proposal, asks you to explain how you would do the work and what it would cost, and the buyer weighs both. An RFQ, or request for quote, usually asks mainly for a price on something the buyer has already defined. RFQs are common for smaller or simpler purchases. The solicitation itself tells you how it will be evaluated, so always read that section.

What does IFB stand for?
IFB stands for invitation for bid. It is used for sealed bidding, where the buyer has written a clear, complete description of what it wants and plans to award to the lowest-priced bidder who is responsible and whose bid follows the instructions exactly.

Is a bid the same as a proposal?
Not quite. A bid usually answers an IFB and is mostly about price and following the rules exactly. A proposal answers an RFP and is about your approach, your experience, and your price together. People use the words loosely, so look at what the document is called and how it says it will be scored.

Can you negotiate after submitting a sealed bid?
Generally no. Sealed bidding is built so that every bidder is held to the same terms and the price on the bid is the price. If you think the requirement has a problem, raise it through the question process before bids are due, not after.

Which type of solicitation is easiest for a small business?
Many small businesses start with RFQs because they are usually shorter and focused on price. But easy is not the same as a good fit. Pick the solicitation where your work matches the requirement, whatever it is called.