How many members does a gym need to break even?

It depends entirely on your fixed costs and your average revenue per member, which is why the number has to be calculated for your site rather than borrowed from someone else's. The calculation is fixed monthly costs divided by contribution per member, and it is the first figure a lender looks for.

What churn rate should I use in the forecast?

Use your own if you have any history. If you do not, model a range rather than a single figure and show what the business looks like at the pessimistic end — that sensitivity is worth more to an assessor than a confident number with nothing behind it.

Do I need planning permission to open a gym?

Possibly, depending on the unit's existing use class and your local authority. Check before you sign a lease. It is the single most common reason a gym project stalls after money has been spent.

Can I write the plan myself?

Yes, and for a straightforward studio the software is designed for exactly that — you answer questions about the business and it builds the projections, working out VAT and tax as it goes. £39.99 a month, and there is a demo you can look at first.

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Gym and Fitness Business Plan

A gym is a high fixed-cost business with recurring revenue, which makes it unusually easy to model and unusually unforgiving if the model is wrong. Rent, equipment finance and staff have to be paid whether or not anyone turns up. This guide covers what it costs to open, the numbers that decide whether it works, and where gym plans usually fall down.

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Written by Clive Unitt FCA, Founder & Chartered Accountant

What a lender is actually assessing

Fitness has a reputation with lenders for optimistic membership forecasts and a high failure rate in the second year. Expect the plan to be read sceptically, and answer the scepticism directly.

Break-even members, stated plainly. Fixed costs divided by contribution per member. If the answer is 480 and the site has been open six weeks with 90 members, the plan needs to show how it gets there and what is being paid in the meantime. This single figure carries more weight than the rest of the forecast.
Churn, and whether you have allowed for it. Membership is not cumulative. A plan that adds new joiners each month without subtracting leavers is the most common error in this sector, and an assessor will spot it in seconds. Model gross joins and cancellations separately.
What happens after January. Sign-ups spike in January and again in September, and a forecast built off a January run rate will be wrong by March. Seasonality has to be in the monthly cash flow, not smoothed away.
The equipment commitment. Most gyms finance their kit, and that repayment is fixed for three to five years. A lender wants to see it in the cash flow alongside the rent, and to know what the position is if membership stalls while both are still due.

Typical startup costs

A studio in converted space and a full-size site with a cardio floor are different businesses with different funding requirements. The ranges below are indicative starting points for your own quotes rather than benchmarks.

Cost	Typical range	What drives it
Fit-out and flooring	Varies by site	Rubber flooring, mirrors, changing rooms and ventilation. An existing gym unit costs far less than a conversion.
Equipment	Quote it, do not estimate	The biggest line. Buying outright, leasing and refurbished kit produce very different cash flows.
Deposit and first quarter rent	Per landlord	Plus a rent deposit, commonly several months, which is cash out before you open.
Business rates	See your local authority	Small business rate relief may apply. Check the rateable value before signing anything.
Music licence	Annual	Playing music in a gym needs TheMusicLicence from PPL PRS. Routinely forgotten in forecasts.
Insurance	Annual	Public liability, employer's liability, equipment cover, and professional indemnity where you deliver training.

Equipment is the largest single variable and the most commonly financed. Get real quotes before building the forecast — supplier pricing moves and the finance terms matter as much as the price.

The numbers that decide whether it works

A gym lives or dies on two numbers most plans leave out: how many members it takes to cover the fixed costs, and how many walk away each month. These are the figures a lender turns to first.

Break-even membership: Total fixed monthly costs divided by contribution per member. Every other membership figure in the plan should be read against it.
Monthly churn: The share of members who cancel each month. Small changes compound hard: the difference between 3% and 6% churn is the difference between growth and a treadmill.
Average revenue per member: Memberships, personal training, classes and any retail. PT and classes are usually where the margin is, and plans that model membership alone understate the business.
Capacity at peak: Members are sold against the whole week; they turn up between six and eight in the evening. A site that is unpleasant at peak churns, whatever the annual capacity figure says.

Licensing and regulation

There is no single licence for operating a gym, which surprises people, but several separate obligations apply and a couple of them are easy to miss.

Planning and use class: Converting a unit to fitness use may need planning permission or a change of use. Check with the local authority before committing to a lease — this has ended more gym projects than any other single issue.
Music licensing: Playing recorded music in a public space requires TheMusicLicence, covering both PPL and PRS. It is charged annually and scales with the space and the number of people.
Health, safety and equipment: Risk assessments, maintenance records, appropriate supervision and first aid provision. A documented maintenance schedule matters for insurance as well as for safety.
Staff qualifications: Trainers and instructors are expected to hold recognised qualifications and their own insurance, with CIMSPA the main professional body for the sector in the UK.

Two numbers decide it

Most gym business plans run to thirty pages and leave out the two figures that determine whether the business works: how many members are needed to cover the fixed costs, and how many leave each month.

The first is straightforward arithmetic. Add up everything that is payable whether or not anyone walks through the door — rent, rates, equipment finance, insurance, utilities, core staff — and divide by the contribution each member makes after the variable cost of serving them. That is your break-even membership. Every membership number elsewhere in the plan should be read against it, and if the plan does not state it, the first question you will be asked is what it is.

Churn is where forecasts break

The second number is the one people leave out, and leaving it out makes the forecast worthless.

Membership is not cumulative. If you sign 60 members a month and lose 5% of your base, growth slows as the base grows and eventually stops entirely. A forecast that adds joiners month after month without subtracting anyone produces a hockey stick that no operator has ever seen, and an assessor who spots it stops trusting the rest of the document.

Model gross joins and cancellations as separate lines. It takes ten minutes and it is the difference between a forecast that describes a gym and one that describes a spreadsheet.

January is not a run rate

Fitness is one of the most seasonal businesses there is. Sign-ups spike hard in January, again in September, and fall away over the summer. Cancellations follow their own pattern, usually a few months behind.

If the plan opens in January and projects forward from the first month’s numbers, it will be wrong by spring and badly wrong by August. The monthly cash flow has to carry that shape. It also changes when the business needs money: the tightest month for a gym that opened in January is often July, which is exactly when the January optimism has worn off and nobody is watching.

Where the margin actually is

Membership pays the rent. Personal training, classes and small-group sessions are usually where the profit is, and they are the part most plans under-model or omit.

If PT is part of the business, it needs its own revenue line with its own assumptions — how many trainers, what split, how many sessions a week is realistic. Treating it as a rounding error understates the business and hides the thing that most often gets a gym past break-even.

How this gets funded

Gyms are usually funded as two separate problems: the equipment, and everything else.

Equipment finance or leasing: The most common route, because the kit is an asset the lender can recover. Spreads the cost but fixes a monthly commitment for years, so it belongs in the cash flow from month one.
Start Up Loan or bank lending: For fit-out and working capital. A monthly cash flow showing the trough and the break-even membership is what carries this application.
Pre-sales and founder memberships: Selling discounted memberships before opening brings cash forward and tests demand at the same time. Model them as deferred income rather than as profit.
Landlord contribution: Rent-free periods or a fit-out contribution are frequently negotiable on a vacant unit, and are worth more to the cash flow than a small rent reduction.

Frequently asked questions

How many members does a gym need to break even?: It depends entirely on your fixed costs and your average revenue per member, which is why the number has to be calculated for your site rather than borrowed from someone else's. The calculation is fixed monthly costs divided by contribution per member, and it is the first figure a lender looks for.
What churn rate should I use in the forecast?: Use your own if you have any history. If you do not, model a range rather than a single figure and show what the business looks like at the pessimistic end — that sensitivity is worth more to an assessor than a confident number with nothing behind it.
Do I need planning permission to open a gym?: Possibly, depending on the unit's existing use class and your local authority. Check before you sign a lease. It is the single most common reason a gym project stalls after money has been spent.
Can I write the plan myself?: Yes, and for a straightforward studio the software is designed for exactly that — you answer questions about the business and it builds the projections, working out VAT and tax as it goes. £39.99 a month, and there is a demo you can look at first.

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Answer questions about your business and SquarePlan builds the projections, break-even analysis and formatted plan for you. £39.99 a month, cancel any time.

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Clive Unitt FCA

Founder & Chartered Accountant (FCA)

Clive is a Fellow of the Institute of Chartered Accountants in England and Wales and the founder of SquarePlan. He has spent over thirty years working with businesses from sole traders to multinational public companies.

He writes here about business planning, financial projections and the UK tax and funding questions that come with starting out.

More about Clive → ICAEW member record Companies House LinkedIn

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