Quick Answer
For a mid-market advertiser spending between £500,000 and £10 million annually, a comprehensive media audit typically costs £15,000-£45,000. The return on investment is typically 5-10 times the fee within twelve months, making even a £45,000 audit economically compelling if it recovers £225,000 or more in annual savings.
Fees vary significantly based on scope, spend size, channel complexity, and timeline. The sections below explain each factor in detail.
Factors That Affect Media Audit Pricing
No two media audits are identical, and pricing reflects the scope and complexity of each engagement. The five factors below have the greatest influence on the final fee.
1. Scope of the Audit
A focused contract review is significantly less work than a comprehensive holistic audit examining all channels, commercial terms, and performance data. A channel-specific audit sits in between. Scoping the audit tightly can reduce fees substantially whilst still delivering meaningful findings.
2. Annual Media Spend
Larger spend means more data to analyse, more agencies to review, and more complex financial reconciliations. Auditing £50 million of spend requires substantially more resource than auditing £1 million. Fees scale with spend size, though not linearly; the relationship is closer to a square root curve.
3. Number of Channels
Each channel (paid search, social, programmatic, TV, out of home, radio, press) requires specialist expertise and separate analytical frameworks. A multi-channel advertiser across eight channels will cost more to audit than a business running paid search and social only. Each additional channel adds meaningful analytical work.
4. Commercial Complexity
Multiple agencies, complex rebate structures, consolidated buying arrangements, international markets, and programmatic supply chain analysis all increase the time and expertise required. A straightforward single-agency relationship is considerably simpler to audit than a multi-market, multi-agency structure.
5. Timeline and Urgency
Standard audit timelines allow the auditor to work methodically and deploy resource efficiently. Compressed timelines (for example, ahead of a contract renewal in four weeks) require more resource to be deployed simultaneously and typically command a premium. Building in adequate lead time is the single easiest way to reduce audit costs.
Typical Media Audit Pricing by Spend Level
The table below provides indicative pricing ranges for comprehensive audits at different levels of annual media spend. All figures are exclusive of VAT. Focused audits (contract review, single channel) will typically fall at the lower end of each range or below it.
| Annual Media Spend | Indicative Audit Fee | Typical Savings Found | ROI Range |
|---|---|---|---|
| Under £500K | £5,000 - £15,000 | £25,000 - £75,000 | 3-10x |
| £500K - £2M | £15,000 - £25,000 | £75,000 - £300,000 | 5-12x |
| £2M - £10M | £25,000 - £45,000 | £200,000 - £1.5M | 7-15x |
| £10M+ | £45,000 - £100,000+ | £1M - £5M+ | 10-20x |
* Indicative ranges only. Actual fees depend on scope, complexity, and timeline. All figures exclude VAT. Contact us for a scoped quotation.
What’s Included in a Media Audit Fee?
A comprehensive media audit fee covers a substantial body of expert work. Here is what a well-scoped engagement should include.
Contract and Commercial Review
Forensic examination of agency contracts, statements of work, rate cards, and commercial terms. Identification of unfavourable clauses, missing protections, and benchmarking against market norms.
Financial Reconciliation
Line-by-line reconciliation of invoices against media plans and buying records. Verification that you have received what you were charged for, and identification of overbilling or unexplained fees.
Media Rate Benchmarking
Comparison of the rates your agency paid for media against independent benchmarks. This quantifies whether your buying rates are competitive and where renegotiation could deliver savings.
Digital Campaign Analysis
Platform-level review of paid search, social, and programmatic campaigns. Includes account structure, targeting, bidding strategy, audience overlap, Quality Scores, and waste identification.
Rebate and Transparency Audit
Investigation of volume bonuses, agency rebates, and undisclosed income. Assessment of compliance with contractual transparency obligations and industry standards such as the ISBA/IPA Framework.
Performance Measurement Review
Assessment of attribution models, KPI frameworks, and reporting quality. Identification of measurement gaps and recommendations to improve the accuracy of performance evaluation.
Written Findings Report
A detailed written report presenting all findings, quantified savings opportunities, and prioritised recommendations. This document provides an authoritative record for internal stakeholders and agencies.
Recommendations Presentation
A formal presentation of findings to your senior team, with an opportunity to discuss implications, agree priorities, and plan implementation. Includes a prioritised action plan with expected impact for each recommendation.
Media Audit ROI: A Worked Example
Abstract claims about ROI are easy to make. Here is a concrete worked example based on a real client engagement, with figures adjusted for illustrative purposes.
Mid-market FMCG Advertiser
Annual media spend: £4.2M • Channels: TV, digital, out of home • Audit fee: £32,000
Findings
Summary
Year two savings are £180,000 with no additional audit cost; cumulative two-year ROI exceeds 10x.
This example sits at the conservative end. Based on our audit history, the average saving is 17% of total annual spend. For an advertiser spending £4.2 million, that is approximately £714,000 per year, though not all savings are achievable in year one. Our audit reports distinguish between immediate savings (achievable within three months), medium-term savings (requiring contract renegotiation at renewal), and structural improvements (requiring process and governance changes).
Fixed Fee vs Percentage of Savings
There are two common fee structures in media auditing. Understanding the difference matters.
Fixed Fee
RecommendedThe auditor charges a pre-agreed fixed fee regardless of the savings found. This preserves complete independence: the auditor’s incentive is to provide accurate findings, not to maximise reported savings.
- No conflict of interest
- Findings are objective and accurate
- Predictable costs for budgeting
- Auditor can recommend retaining the agency
- Industry standard for reputable firms
Percentage of Savings
Conflict of interest riskThe auditor charges a percentage (typically 15-30%) of any savings identified. This creates a direct financial incentive to find or overstate savings, which compromises independence.
- Incentivised to inflate findings
- May recommend agency changes unnecessarily
- Variable and potentially high cost
- Difficult to verify savings claimed
- Common among agency-aligned consultants
Our position: Fuel Media charges fixed fees for all audit engagements. We believe this is the only model consistent with genuine independence. A percentage-based auditor who earns more by finding more savings has the same conflict of interest as an agency that benefits from inflating your media spend; the motivations are simply reversed.
How Fuel Media Prices Its Audits
We price every audit individually based on a scoping conversation. There are no hidden extras, no percentage-of-savings arrangements, and no minimum spend requirements that exclude smaller advertisers. The process is straightforward.
Free Initial Consultation
We start with a no-obligation conversation to understand your situation, current agency arrangements, and what you are hoping to achieve. This typically takes 45-60 minutes and is entirely free.
Scoping Proposal
Based on the consultation, we produce a scoping document that defines exactly what the audit will cover, what it will not cover, the methodology we will use, the timeline, and a fixed fee. There are no surprises.
Fixed-Fee Engagement
The fee is fixed for the agreed scope. If the scope needs to grow, we agree any change in writing first; we will never present an unexpectedly large invoice at the end.
Transparency note: We will always tell you at the outset whether we believe an audit is likely to deliver a strong return for your specific situation. If your spend level or circumstances suggest the ROI is marginal, we will say so, even if that means recommending a lighter-touch approach or a self-serve tool like our Media Waste Calculator instead.
Frequently Asked Questions
Is a media audit tax deductible?
In most cases, yes. A media audit is considered a professional business service and qualifies as a deductible business expense under HMRC guidelines, in the same way as legal fees, accountancy costs, or management consultancy. We recommend confirming the specific treatment with your finance team or tax adviser, as circumstances vary. The tax efficiency of the investment further improves the already strong return on investment.
How long does a media audit take?
Timelines depend on scope and complexity. A contract review can be completed in two to three weeks. A digital media audit covering paid search, social, and programmatic typically takes four to six weeks. A comprehensive holistic audit examining all channels, contracts, and processes generally requires six to ten weeks. The largest variable is data collection speed, which depends on how quickly your agency and internal teams can provide the necessary information.
What if you don't find any savings?
It has not happened yet: across our completed audits we have found meaningful savings or performance improvements in every engagement. However, a clean audit result is itself valuable: it provides documented assurance that your media investment is well-managed, your agency is acting in your interests, and your commercial terms are competitive. That peace of mind has genuine value for boards, investors, and procurement teams.
Do I need to switch agencies to benefit from an audit?
No. The majority of our clients retain their current agency after an audit. The purpose of an audit is not to change agencies but to optimise the relationship, improve transparency, renegotiate terms where necessary, and correct any inefficiencies. Many agencies welcome independent audits as an opportunity to demonstrate their value. Where we do recommend considering a change, it is because the evidence clearly supports that conclusion, not as a default outcome.
Why do independent auditors charge fixed fees rather than a percentage of savings?
Fixed fees preserve independence. If an auditor charges a percentage of any savings identified, they have a financial incentive to find savings regardless of whether those findings are in your best interest. For example, they might recommend switching agency unnecessarily or identify spurious savings to inflate their fee. Fixed-fee auditors can report findings objectively without any conflict of interest. We consider this the only ethical model for independent media auditing.
Can a smaller business afford a media audit?
We work with advertisers spending £500,000 or more a year. Below that, a full media audit rarely pays for itself; a focused PPC audit, or our free media audit checklist, is usually the better starting point. We always begin with a free initial consultation to determine whether and how an audit makes commercial sense for your specific situation.
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