STEP-BY-STEP GUIDE
How to run a PBM RFP
The process a self-funded employer follows to make the PBM market actually compete: the timeline, the data, the questions, the scoring, and the contract negotiation that decides whether the winning bid means anything.
GC
By Ginny Crisp, PharmD · Reviews hundreds of PBM contracts a year
Published August 2026 · Updated August 2026
A self-funded employer runs a PBM RFP by setting the timeline backward from the contract's non-renewal notice deadline, assembling its own claims data, writing the bid on the plan's terms rather than the PBM's template, putting every bidder on identical questions with scored answers, and negotiating the contract language before naming a winner. Plan four to six months end to end.
That sequence is the whole process, and the order matters. Most RFPs fail before the first proposal arrives because the plan skipped the first two steps: the timeline was set by the incumbent's renewal calendar instead of the notice deadline, and the questions came from a bidder's template instead of the plan's own data. Prescription Benefit Solutions ran 59 PBM RFPs in 2025. The savings rate across those engagements was 25%, and none of it came from the bidding ritual itself. It came from the questions, the scoring, and the contract language the competition forced.
When should a plan run an RFP instead of renewing?
A renewal without market pressure lets the incumbent re-price its own deal. The PBM has modeled your claims, knows where its guarantees ran thin, and prepares its renewal offer accordingly; without competing bids, the negotiation happens inside the PBM's framework. Market concentration makes this worse, not better: the Federal Trade Commission reported in July 2024 that three PBMs process roughly 80% of US prescriptions, so choosing among giants on their paper is not much of a choice. A structured RFP is the one lever that turns concentration back on the bidders, because near-identical firms hate losing to each other.
The practical trigger is the calendar. Most PBM contracts require written non-renewal notice 90 to 180 days before the term ends, and many renew automatically if the date passes in silence. If your notice deadline is inside the next ten months, the RFP decision is now, not at renewal.
What data do you need before writing the bid?
The employer who negotiates from its own data never has to accept the PBM's summary of its own performance. Before the RFP goes out, assemble at least twelve months of claims detail, your top drugs by plan spend, specialty utilization and where those scripts are filled, your current contract with its definitions and guarantees, and your rebate reports. This package does two jobs: it gives bidders a real basis to price, which produces comparable proposals, and it tells you what a credible answer should look like, which is what makes scoring possible.
What should the RFP actually ask?
Write the questions yourself. A bidder's standard proposal template is a sales document; your RFP is a diligence document, and the two are not interchangeable. The questions that separate bidders fall into six families: pricing methodology and definitions (which AWP source, how generic is defined, whether the generic effective rate is guaranteed by channel), rebate and manufacturer revenue (the full definition, whether specialty claims sit in the denominator, what a rebate aggregator retains upstream), clinical programs and their savings methodology, reporting and audit rights, contract terms (termination, auto-renewal, amendment consent), and implementation. A vague answer to any of them is information: it tells you what the bidder plans to leave undefined in the contract.
The RFP Scoring Methodology Audit in our free toolkit library is the paste-ready worksheet version of this question set, built to run with your broker.
How do you score the responses?
Identical questions plus a defined scale is what converts proposals into a decision. Score each answer, for example 0 to 3: a specific, measurable, contract-ready commitment earns full points; a partial or conditional answer earns some; marketing language earns none. Weight the categories by dollars at stake, pricing and rebates first. Two disciplines protect the scoring: score before you see the pricing summary, so a big headline discount cannot halo weak contract answers, and record why each score was given, because that record becomes your negotiation agenda with the finalists.
When does the contract get negotiated?
Before a winner is named, always. Leverage peaks while the competition is still live; the day the award is announced, it collapses. Take the top two or three scorers into contract negotiation simultaneously and resolve the language their answers promised: the pricing definitions, the rebate guarantee and its true-up, audit rights with a real scope, termination for convenience, and consent requirements for mid-term changes. The Contract Language Library shows what protective versions of these provisions look like against the weak versions that usually appear in first drafts. A winning bid that never becomes contract language was an advertisement.
What does the timeline look like?
Working backward from a January 1 effective date with a 90-day notice deadline: data assembly and RFP drafting in the spring, the bid on the street by early summer with about a month for responses, scoring and finalist meetings by late summer, contract negotiation complete and notice delivered by the end of September, implementation through the fall. Four to six months end to end. Compressing the negotiation phase is the expensive shortcut; that is the phase where the savings become enforceable.
Frequently asked questions
How long does a PBM RFP take?
Four to six months end to end: roughly a month for data and drafting, a month for responses, a month for scoring and finalists, and one to two months for contract negotiation and implementation planning. Anchor the whole schedule to your contract's notice deadline.
How many PBMs should be invited to bid?
Three to five serious bidders. Include at least one transparent or pass-through model alongside traditional bidders so pricing structures, not just prices, can be compared.
Should the incumbent be included?
Usually yes. Incumbents often produce their best offer only under genuine competitive threat. The discipline is identical treatment: same questions, same scoring, same contract demands as every other bidder.
What savings does a PBM RFP produce?
Results vary by plan. Across the 59 PBM RFPs Prescription Benefit Solutions ran in 2025, the savings rate on those engagements was 25%, averaging $562,000 in contracted savings per client. The savings come from the questions and the contract language the competition forces.
Can a plan just renew instead?
Renewal can be the right outcome, but it should be the result of a market test, not the default. If a full RFP is not practical this cycle, an independent contract review before signing preserves some of the leverage a quiet renewal gives away.
Do you need a consultant to run a PBM RFP?
A plan can run its own RFP, and this guide is the skeleton. Where independent specialists earn their fee is in knowing what a strong answer looks like on each question, which contract language makes the winning bid enforceable, and where bidders routinely leave the definitions vague. See how to choose a PBM auditor or consultant for the vetting criteria.