Check sponsorship rates review methodology before you trust a score

What to take away

You are deciding whether to rely on a rates review, so start with the evidence behind the score. Ask for the assessed scope in writing.
Vendor claims, independent evidence and editorial judgement should be labelled separately. A review that merges them is a sales document.
No hands-on testing is claimed here. This method reads published material, public registers, platform documentation and regulator guidance.
Scoring should be reproducible. If a second reviewer cannot reach a similar band from the same inputs, the number is opinion.

What does the assessment cover, and what does it leave out?

A methodology statement should name the unit being judged: a rate benchmark, a pricing tool, a published rate card or a comparison service. It should identify the creator, platform, audience, format and deliverables covered, and say how rates are sourced and dated. It should also disclose whether figures include agency commission, production, usage rights, paid amplification or exclusivity: a fee for one post is not comparable with a package that includes those extras.

What sits outside the assessment matters just as much. We do not test platforms, run paid campaigns, negotiate on a reader's behalf or verify private contracts. A rate that looks defensible in a review can still be wrong for your audience. Treat the score as a filter for shortlisting, not a verdict.

How are vendor claims separated from independent evidence?

Every claim carries a source label. Vendor claim means the figure comes from the provider's own marketing. Independent evidence means material from an identifiable external source, such as regulator guidance, a public register, official statistics or platform documentation; these can check rules, company details or audience context, but do not by themselves establish a fair sponsorship fee. Editorial judgement covers interpretation, such as whether a pricing model suits small creators.

The label changes how much weight a claim carries. A provider claiming its data covers tens of thousands of creators stays a vendor claim until an auditable sample exists. On ownership, cross-check the company against Companies House's Register of People with Significant Control (PSC register) rather than accepting a client list. This register can help check declared ownership and control, but it does not verify client claims or rate data.

Which due diligence checks sit behind the scoring?

Four checks feed the score: source transparency, regulatory fit, data hygiene and commercial independence. Can you trace each headline rate to a dated source and see the platform, audience, format and geography it covers? Does the advice match the rules for the channel and product, and is the sample described with outliers handled openly? Is the review paid for by a provider it scores, or does it disclose referral or commission relationships?

Four due diligence checks behind the score

Source transparencytrace each rate to dated origin
Regulatory fitadvice matches channel and product rules
Data hygienesample described, outliers handled openly
Commercial independencereview not paid by scored provider

The Advertising Standards Authority (ASA) administers the UK advertising codes. For non-broadcast material, check the Committee of Advertising Practice (CAP) Code, formally the UK Code of Non-broadcast Advertising and Direct & Promotional Marketing: Section 3 covers misleading advertising, while Section 15 covers food, food supplements and nutrition and health claims. Broadcast advertising falls under the UK Code of Broadcast Advertising (BCAP Code); the linked CAP code rules explain food and health claims.

Where a provider supplies training or certification, team capability can be a separate input, but it is not evidence that its rates are accurate. For paid-social claims, check the published LinkedIn ads certifications.

Those inputs are banded, not averaged into a single decimal. The band rates the quality of the review's evidence, not whether a quoted sponsorship fee is the right market price. A provider strong on sourcing but weak on independence loses more than one strong score can recover.

How should you use a score before signing?

Before relying on a review, ask for its methodology, sample period, geography, formats and underlying source for each headline rate. Check whether the quoted amount is the creator fee alone or includes agency commission, who pays that commission, and which deliverables, usage rights, paid amplification and exclusivity are covered. ONS statistics may provide broad economic context and Ofcom research may contextualise media audiences or channels, but neither verifies an individual sponsorship fee.

Ask for commission, deliverables, usage rights and exclusivity to be identified separately where the review has bundled them; these terms matter when negotiating what a brand-deal fee covers. The £600 monthly retainer here is illustrative, not a reported UK benchmark, and without a named source and deal specification it cannot validate or anchor a rate.

Glossary

Vendor claima statement originating from the provider being assessed.
Independent evidenceregulator guidance, official registers, statistics or platform documentation.
Editorial judgementthe reviewer's reasoned interpretation, labelled as such.
Assessed scopethe products, rates or providers a review actually examined.
Bandinggrouping scores into ranges rather than publishing false precision.

Common questions

Does a high score mean a rate is accurate?

No. It means the review found traceable sourcing, disclosed limits and no obvious conflicts. Accuracy still depends on your audience, format and negotiation position.

Can I see the evidence behind each score?

Yes, that is the point of labelling sources. Ask for the dated origin of any rate you plan to quote to a client.

What if a provider will not share its data sources?

Score it lower on transparency and treat its figures as vendor claims. You can still negotiate, but do not build a rate card on unverifiable numbers.

Who reviews the reviewers?

Editorial judgement is disclosed, not hidden. Where a review cannot be independently verified, the limitation appears in the assessed scope.