Understanding Agency M&A Advisor Fees
If you're considering selling your marketing agency, one of the first questions is: what will it cost to get professional help?
M&A advisory fees are an investment, not an expense. The data consistently shows that advised agency transactions close at 15–25% higher valuations than unadvised sales. But fee structures vary widely, and understanding them helps you negotiate fair terms.
Common Fee Structures in Agency M&A
1. Success Fee (Commission on Sale)
The most common model. The advisor earns a percentage of total transaction value when the deal closes.
| Deal Size | Success Fee Rate |
|---|---|
| Under £1M | 10–12% |
| £1M–£3M | 8–10% |
| £3M–£5M | 6–8% |
| £5M–£10M | 5–6% |
| £10M–£25M | 4–5% |
| Above £25M | 2–4% |
Rates are negotiable. The fee is typically calculated on Total Enterprise Value, including earn-outs and deferred consideration.
2. Lehman Formula (Tiered Commission)
A sliding-scale fee that reduces as deal value increases. The Double Lehman is most common for agencies under £10M:
- 10% on the first £1M
- 8% on the next £1M
- 6% on the next £1M
- 4% on the next £1M
- 2% on everything above £4M
Example: On a £5M deal: £100K + £80K + £60K + £40K + £20K = £300K (6% effective rate)
3. Retainer + Success Fee (Hybrid)
Monthly retainer (£2K–£10K) during the engagement, credited against the success fee at closing. Success fee rate is typically 1–2% lower than pure success-fee engagements.
4. Flat Fee
Less common. Used for smaller transactions or specific services (valuation only, buyer search). Typical range: £15,000–£75,000.
What's Included vs. What Costs Extra
Typically Included
- Valuation analysis
- Confidential Information Memorandum (CIM)
- Buyer identification and outreach
- Process management and data room
- Negotiation support
- Due diligence coordination
- Closing support
Additional Costs
- Legal fees: £20K–£75K for purchase agreement, employment contracts, non-compete
- Accounting/tax advisory: £10K–£30K for tax structuring and QoE preparation
- Financial audit: £5K–£15K if books aren't audit-ready
Total Transaction Costs: A Realistic Budget
For a £3M agency sale:
- M&A advisor (8%): £240,000
- Legal: £35,000
- Accounting: £15,000
- Miscellaneous: £5,000
- Total: ~£295,000 (9.8%)
For a £7M agency sale:
- M&A advisor (6%): £420,000
- Legal: £50,000
- Accounting: £20,000
- Miscellaneous: £10,000
- Total: ~£500,000 (7.1%)
How to Evaluate an Agency M&A Advisor
- Agency-specific experience: General brokers miss recurring revenue valuation, earn-out structuring, and talent retention nuances
- Deal size fit: Match the advisor to your transaction size
- Buyer network: Existing relationships with holding companies, PE firms, strategic acquirers
- Track record: Number of agency deals closed, average time to close, success rate
- Fee transparency: Full structure in writing before signing
Red Flags in Advisory Agreements
- Unreasonably long tail periods — 12–18 months is reasonable; 36 months is aggressive
- Exclusive engagement with no performance milestones — Require minimum buyer engagement benchmarks
- Hidden minimum fees — A 6% fee with a £200K minimum means 10% on a £2M deal
- Broad transaction definitions — Could trigger fees on minority investments or client contracts
- No termination clause — You need an exit if the advisor isn't performing
Is an Advisor Worth It?
For agency sales above £1M in enterprise value, yes. If an advisor's process generates even one additional competing offer, the price improvement typically exceeds their entire fee.
For agencies under £1M, consider flat-fee advisory for specific support rather than a full success-fee engagement.
Get a Confidential Valuation
Use our free valuation tool for an initial estimate. When you're ready, connect with our advisory team for a confidential conversation about your goals and timeline.
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