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Buying advice

How AI Is Changing What Consultants Charge

Ntantas-CBS9 November 20265 minute read
Buying advice · highlight 1 of 3A quarter

Fees tied to outcomes

About a quarter of McKinsey's global fees are now outcome-based, according to a senior partner (May 2026).

Buying advice · highlight 2 of 3Up to 30%

AI saves adviser time

A McKinsey tool is reported to save up to 30% of consultant time.

Buying advice · highlight 3 of 34 asks

What to ask any adviser

Ask for scope, a fixed fee, a named lead and a handover plan.

AI is changing how consultants charge. If you buy advice, you can now ask for things that used to be rare: fixed fees, named senior people and payment tied to results.

01

What is changing

A May 2026 report in Pulse describes the largest consulting firms rethinking how they charge as AI shortens the time many tasks take. It quotes McKinsey partner Michael Birshan saying about 25% of the firm's global fees are now outcome-based. It also reports that BCG expects AI projects to make up about 40% of its revenue and that Bain expects AI-enabled work to grow to half of its revenue. These are reported figures from a single source, so treat them as indicators of direction.

02

Three ways to pay for advice

Who carries the risk of the result HourlyFixed feeOutcome-linked You pay for timeCost can growYou carry the risk You pay for a defined resultCost is knownRisk is shared Part of the fee follows resultsNeeds agreed measuresAdviser shares the risk Best for open-ended helpBest for most SMEsBest where results are measurable
Three ways to buy advice, from highest buyer risk to lowest.

Fixed fees suit most owner-led businesses because you can budget, compare and decide. Outcome-linked fees work when the result can be measured cleanly, such as revenue from a new channel or cost taken out of a process, and when both sides agree how it will be counted.

03

What to ask any adviser

Ask who will do the work, how many days, and what you will have at the end. Ask for a written scope, a price and the dates you pay. Ask what happens if the scope changes. Ask for a handover: playbooks, dashboards and training that stay when the consultant leaves. Our own packages follow that pattern: Essentials from £3,500 over two to three weeks, Growth from £14,500 over six to ten weeks, and Transformation from £85,000 over three to six months, each with a fixed scope and a 30-day money-back guarantee (terms apply).

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