When to Hire a Fundraiser vs. When to Hire an Agency

"Should we hire a fundraiser, or work with an agency?" is the single most common question I get from charity CEOs at the £100k–£500k income mark. It is also the wrong question. The right question - almost always - is "what blend of hire, agency, and CEO time gets us through the next 18 months without burning out the team or the budget?"

Below is the working framework I use. It is not a maths formula; it is a set of decision triggers, financial floors, and a hybrid pattern that, in our experience, outperforms either pure hire or pure agency for most charities under £1m income.

The financial floor for a hire

A first generalist fundraiser, in 2026 in the UK, costs roughly £35–55k base salary, plus on-costs (NI, pension, training, equipment) of about 25%. Total all-in: £45–70k a year. Plus tools (CRM access, fundraising platforms): another £2–8k. Plus the cost of management time from the CEO or chair: another 15–20% of senior time for the first year.

At an industry-standard 3:1 return on fundraising investment in year one (the first year is always lower than steady-state), that means a fundraiser needs to bring in £150–200k in attributable income in year one to break even. By year two, the same hire should be at 4–5:1, generating £250–350k.

The financial floor: do not hire a fundraiser if you cannot credibly see them generating £200k of attributable income in year one. If your total fundraising potential is below £200k, an agency or fractional model is almost always the right call.

The capacity test

A second test, equally important: where is the CEO spending their time? If the CEO is spending 30%+ of their time on direct fundraising activity (writing trust applications, meeting funders, planning events) and the charity wants to grow, the CEO's time is the binding constraint. Hiring takes that constraint off the CEO and lets them focus on strategy, partnerships, and external visibility.

The trap: hiring a fundraiser to relieve the CEO's capacity, but then keeping the CEO involved in every decision. The fundraiser cannot succeed if every funder relationship still has to go through the CEO. Hire to delegate, or do not hire.

When agencies are the right call

Three patterns where agency or fractional support outperforms a hire:

• Episodic, project-shaped work. A specific capital appeal, a one-off campaign, a strategy reset. The work has a start and an end, and you do not need it again for two years. Hiring for it is over-investment.
• Specialism you do not have year-round demand for. Major-gift cultivation, brand strategy, digital advertising, trust application drafting at scale. Hiring a specialist for a need you only have three months a year is expensive idle time.
• Operational coverage with low scale. If you need 1.5 days a week of fundraising operations support, a fractional or agency contract is almost always better value than trying to hire a part-time generalist.

The hybrid pattern that usually wins

The combination that, in our experience, outperforms either pure model for charities at the £200–800k income mark:

1. One in-house generalist fundraiser (the relationship and pipeline owner).
1. A fractional or agency partner for one specialism - usually trusts and foundations, or digital fundraising - at 1–2 days a week.
1. A clear protocol for who owns which relationship, with the in-house fundraiser as the senior face for major donors.

That blend gets you the consistency of an in-house relationship anchor and the depth of a specialist, without the full cost of two hires. The trick is the protocol - without explicit boundaries, the agency and the in-house fundraiser end up either duplicating work or letting balls drop.

The decision triggers

A short checklist for the next conversation in your senior team or board meeting:

Hire if all of these are true

• Annual income consistently above £200k for two years.
• CEO spending 30%+ of time on direct fundraising.
• A credible pipeline that supports £200k+ of attributable year-one income.
• Capacity to manage the hire - line-management, onboarding, supervision.
• Cash runway to fund the hire for at least 18 months.

Stay agency / fractional if any of these are true

• Income below £150k or highly volatile.
• No clear line manager for a fundraiser.
• The work is project-shaped or specialist with seasonal demand.
• Less than 12 months of cash runway for a salary commitment.

Hybrid if any of these are true

• Income £200k–£800k with a generalist need plus a clear specialist gap.
• The CEO has time for one hire but not two.
• You can credibly fund 1.5 FTE-equivalent for 18 months.

The mistake to avoid

The most common - and most expensive - mistake is to hire a fundraiser for two days a week as a "test." Two days a week is not enough to build relationships, run a pipeline, manage CRM, or sustain morale. The hire fails, the charity concludes "fundraisers don't work," and the next hire is delayed by years. If you cannot fund a 0.6 FTE minimum, do not hire - go agency or fractional and revisit when the maths is closer.

A two-day-a-week fundraiser is not a small fundraiser. It is a fundraiser set up to fail. The shape of the role matters as much as the quality of the candidate.

A short closing

Hiring is not always the right answer, and an agency is not always the right answer. The pattern that holds up most often for under-£1m charities is the hybrid - one in-house generalist, one specialist partner, a clear protocol - funded for 18 months minimum and reviewed at 12. Build the question that way and the conversation in your next board meeting becomes substantially more productive.

Further reading

Channel Mix for Small Charities, 2026 | Donor Segmentation That Actually Moves Money | Lead-Scoring for Charities, Without the Hype