How to assess evidence behind a sponsorship quote

Quoting sponsorship rates is easier to defend when you can name the source behind each number, see the sample it came from and check how the figure was defined.

What to take away

What counts as benchmark evidence

A benchmark only counts as evidence if it states who produced it, when, how the sample was built and which platform, format and rights it covers. Without those details, a number tells you nothing about your own quote.

Sources that provide context, not rates

Use named primary sources for the evidence they actually contain. The ASA rulings database records individual cases and outcomes, showing which advertising claims were challenged and why.

The IPA publications and reports library carries planning and effectiveness work with stated samples and fieldwork dates. Both let you write "according to X, published in month year" rather than "industry sources say".

For UK context on media budgets and disclosure, use the IPA Bellwether Report Q2 2025, published 17 July 2025, and the ASA's influencer ad disclosure monitoring report, published 16 March 2022. Neither sets a sponsorship rate, but both anchor dated assumptions relevant to a brief.

Platform-side data is a second category. LinkedIn's audience targeting documentation sets out how professional audiences can be segmented, which matters when a brand wants a B2B creator rate justified by job title or seniority rather than follower count alone.

Secondary round-ups and rate cards

Agency rate cards and creator surveys show shape, not precision, and pool formats, so one figure may blend a 15-second story with a 90-second integrated video.

Treat them as directional. If you quote a figure, label it: whose survey, how many creators and when it ran.

The median of £850 per post below is hypothetical, not a published benchmark. For a usable figure, the survey's name, sample size and date are essential.

Hypothetical worked example, not a real benchmark: suppose an unnamed survey reports a median of £850 for an Instagram Reel with no paid usage rights. Your brief is a YouTube integration with 12-month rights, so the sample does not match.

For this hypothetical example only, adjust for format and rights, then quote a range that starts at £850 and rises by the rights fee you price, fee excluding VAT in GBP, and log the source in the template below.

How to read a benchmark without being misled

Read the definition and the sample before you read the figure. Most misleading comparisons come from two numbers that were never measuring the same thing.

Check the definition before the number

Ask what was measured. Was it the fee, the fee plus production, or total campaign spend? Was exclusivity included? A benchmark that excludes usage rights will look cheap next to one that bundles a 12-month licence. Write the definition next to the figure in your own notes.

Check the sample against your brief

A consumer lifestyle creator benchmark says little about a specialist B2B audience, so match on platform, category, audience size band and geography. If no close match exists, say so in the proposal rather than stretching a distant comparison.

Our guide, Sponsorship rates measurement and reporting, sets out how to structure that evidence file so it can be reused across pitches.

Recording and reusing the research

Research that is not written down is research you will pay for twice. Keep one file that holds the source, the definition, the sample and the date for every benchmark you quote.

Keep an evidence log

Use this template for every benchmark. When a client challenges a rate six months later, the log answers the question in seconds rather than days.

Common failures are predictable and avoidable: a figure with no named publisher, a sample from the wrong category, a rights assumption left unstated, or an average that hides a wide spread. Name each one in your own notes and it stops weakening the next proposal.

Refresh on a schedule

Set a quarterly review. Recheck the sources you rely on, note any methodology change, and retire figures that no longer apply. If a benchmark has moved sharply, find out why before passing the movement on in a quote.

Benchmark research checklist

Common questions

These are the questions that come up most often when a quoted sponsorship rate is challenged.

How many sources should support a quoted rate?

Two independent sources is a workable minimum for a range, and one should be close to your category. If only one credible source exists, present the figure as indicative and explain the gap.

Should I quote a single average or a range?

Quote a range with the assumptions attached. An average hides the spread that matters in negotiation, and a range lets you explain what moves a deal to the upper end.

How often should benchmarks be refreshed?

Quarterly is sensible for most categories. Refresh sooner if a platform changes its ad products, if disclosure rules shift, or if your own campaign results diverge sharply from the benchmark.

What if no benchmark covers my niche?

Say so plainly, then build the case from your own campaign history, audience data and comparable adjacent categories. Documenting the absence is stronger than borrowing a number that does not fit.