Membership drive: how to plan, run and measure one

01/ What is a membership drive?

A deadline, a number and an owner.

What separates a drive from ordinary recruitment is the box around it. Recruitment never stops; a drive has a first day and a last day.

Trade unions have run them this way for decades. UCU tells its branches that although recruitment is ongoing, “setting a timeline is a helpful way of preparing for and monitoring recruitment activities”, and that the committee should “set goals and targets, and plan your recruitment campaign” together (UCU, branch guidance).

A drive is not the same as a membership campaign. A campaign can aim at renewal, reactivation or upgrades; a drive aims at one thing, new joiners, inside one window.

Nor is it a list of tactics. The tactics are the easy part, and we keep them on a separate page of membership drive ideas. This page is the frame those ideas sit in.

02/ When to run a drive

Fix the leaks before you pour.

A drive brings in a burst of new members at once. If your joining journey, welcome emails and first-year experience are weak, the drive simply fills a bucket with holes.

The TUC Digital Lab puts the arithmetic plainly: a union of 100,000 members losing 10% a year while recruiting 7.5% would have “just 50,000 members in seven years” (TUC Digital Lab, 2023). Recruitment alone cannot outrun that.

So check four things before setting a date. If any answer is no, fix it first, or expect much of the drive’s intake to lapse at first renewal.

Timing matters too. Pick a window when your prospects are paying attention: the start of an academic year for student grades, a conference season for a professional body, or the weeks after a public win for a campaigning charity.

03/ Setting a membership drive target

Count the lift above your normal month.

The common mistake is a round number with nothing under it. “Five hundred new members” means little if you would have recruited three hundred in those six weeks anyway.

Start from the baseline: how many people join in a normal six-week period with no drive running. Use the same weeks last year if your joins are seasonal.

The drive’s target is the lift on top of that baseline. That is the number the drive can honestly claim, and the number its costs should be judged against.

Then work backwards. Decide how many prospects you can reach, how many will respond, and how many of those will complete the join form. Each step is a rate you can check at the end.

Our worked example below uses invented round numbers to show the arithmetic. Replace each with your own figures from last year.

04/ How to run a membership drive

Six weeks, planned backwards from launch.

Most of the work happens before the drive goes public. Lists, materials, the offer and the people who will make asks all need to be ready on day one.

A short, intense window keeps volunteers engaged. Much longer and the energy drops; much shorter and you cannot follow up anyone who showed interest.

UCU’s branch guidance adds two practical devices that suit any organisation: information stalls in busy places with a staffing rota, and meetings on an issue of current concern publicised to non-members, with membership materials and a sign-up sheet to hand (UCU).

05/ Who runs the drive

One owner, many recruiters.

A drive fails when everyone assumes someone else is doing it. One person owns the target and the daily numbers.

UCU is explicit that recruitment “is not a job which can be undertaken by the membership secretary acting alone”, and that the most effective way to recruit is “face to face conversations between colleagues” (UCU).

Survey evidence points the same way. In the iMIS 2026 benchmark, respondents most often named email (39%), events and meetings (38%) and member referrals (34%) among their best new-member recruiting strategies (iMIS 2026, vendor survey, 76% of respondents in the US, up to three answers each).

That is a vendor survey of what respondents believe works, not an observed comparison. Treat it as a reason to give your members a role, not as a ranking of channels.

Members who recruit need something easy to share and a clear rule for any reward. The operating rules for that live on the member referral programme page.

06/ Prize draws, offers and email

Three rules to check before launch.

Prize draws. Under the Gambling Act 2005 an arrangement is a lottery if people pay to take part, prizes are allocated and the allocation relies wholly on chance (Gambling Act 2005, s.14). If only joiners enter a draw, joining is the payment. The Gambling Commission says a free draw with a paid route needs a free entry route that is “no more expensive and must be no less convenient”, promoted at the same level (Gambling Commission).

Offers. The CAP Code requires promoters to deal “fairly and honourably” with participants and to avoid “unnecessary disappointment”, and says “subject to availability” does not excuse a shortfall (CAP Code, section 8). State the closing date and any limit plainly.

Email. Under PECR you must not email marketing to individuals without consent, and the soft opt-in “does not apply to prospective customers or new contacts (eg from bought-in lists)” (ICO, electronic mail marketing). A drive is the moment to email people who have opted in, not to buy a list.

This is general information for Great Britain, not legal advice.

07/ Measuring a membership drive

Judge it at first renewal, not on day 42.

The headline number is lift: joins during the window minus the baseline. Report it alongside cost, so the board sees cost per extra member rather than cost per member.

Tag every join with its source as it happens. Afterwards, nobody remembers which stall or email produced whom.

The real test comes a year later. A drive that recruits on a heavy discount can produce members who leave at the first full-price renewal. Compare the drive cohort’s first renewal with other joiners from the same year.

Score your plan below before launch. A low score is not a reason to cancel, but it tells you where to spend the remaining weeks.