What this market stall break-even calculator does
Before you book a craft fair, farmers’ market or pop-up, you want one honest number: how many items do I have to sell just to get my money back? This tool answers that. It adds up the fixed costs you pay whether you sell one item or one hundred — the pitch fee, travel and any other day costs — then divides them by the real profit you keep on each item after stock and card-reader fees. The result is your break-even item count for that specific event.
Unlike a generic break-even formula, it blends in card processing the way it actually hits a market trader: only a share of your customers tap a card, so the percentage fee and any fixed per-transaction charge are spread across all sales at the rate you set.
How to use it
- Enter your day’s fixed costs: the pitch or table fee, your travel and parking, and anything else you pay up front (insurance, stall hire, or a wage you want to earn for the day).
- Add your per-item figures: the average price you sell at and the stock or material cost of one item.
- Set your card terms (optional): your reader’s percentage rate, any flat fee per transaction, and roughly what share of sales go through the card machine.
- Read your break-even count at the top, then drag the slider to see your profit or loss at different sell-through levels.
Everything updates instantly and runs entirely in your browser — no sign-up, and your numbers never leave your device.
When and why you’d use it
It’s built for the moment you’re deciding whether an event is worth doing. A £45 pitch at a quiet midweek market needs a very different sell-through to a busy weekend fair, and the only way to compare them fairly is to see the break-even side by side. Use it to:
- Decide whether a high-fee fair is worth the spot, given your prices.
- Set a minimum stock-to-bring target so you can’t physically sell out below break-even.
- Check whether raising your price by a pound or two meaningfully lowers the number of sales you need.
- Build a realistic day plan: cover costs by lunchtime, then everything after is take-home.
The formula, explained
The calculation has two parts. First, contribution per item = selling price − stock cost per item − the blended card fee per item. The blended card fee is your card-payment share × (price × percentage rate + fixed fee). Second, break-even items = total fixed costs ÷ contribution per item, rounded up to a whole item because you can’t sell a fraction of a product.
If your contribution per item is zero or negative — meaning each sale loses money before you even count the pitch fee — there is no break-even point, and the tool tells you to raise your price or cut your stock cost first.
Worked example
Pitch fee £45, travel £18, other £12 → £75 fixed. You sell at £14 with £5.50 stock cost. With a 1.75% card fee on 60% of sales, the blended card cost is about £0.15 per item, so your contribution is roughly £8.35. £75 ÷ £8.35 ≈ 9, so you break even on the 10th item. Sell 25 and you’re left with around £133 profit before tax.
Common mistakes
- Ignoring card fees. On a card-heavy day they quietly raise the number of items you need to sell.
- Forgetting your own time. Break-even covers cash costs only; add a day-wage into “other fixed costs” if you want the event to actually pay you.
- Using your top price for everything. Use a weighted average price and cost, or your break-even will look better than reality.
- Counting stock you brought as cost. Only count the cost of items you actually expect to sell; unsold stock goes to the next event.
Frequently asked questions
How do I calculate the break-even point for a market stall?
Add up your fixed costs for the day — pitch or table fee, travel, and any other one-off costs such as insurance or stall hire. Then find your contribution per item: selling price minus the per-item stock cost minus the card processing cost per sale. Divide total fixed costs by the contribution per item and round up. That whole number is how many items you must sell before the day starts making a profit.
Should I include card processing fees in my break-even?
Yes. Most card readers charge a percentage of each sale, and some add a small fixed fee per transaction. Because only some customers pay by card, this tool lets you set the share of sales taken by card, so the cost is blended fairly across every item rather than overstating fees on a cash-heavy day. Leaving fees out makes your break-even look easier to hit than it really is.
What if my items have different prices?
Use a weighted average selling price and a weighted average stock cost across the items you expect to sell. If your range is very mixed — say £3 cards alongside £40 prints — run the calculator twice using your low-end and high-end mix to see a realistic break-even range for the day rather than a single optimistic figure.
Does break-even include paying myself for my time?
Not by default. Break-even covers your cash costs only. To pay yourself, add a target wage for the day into the “other fixed costs” field. The calculator will then show how many items you need to sell to cover both your costs and your time, which is a far more honest figure when you’re deciding if an event is worth a whole Saturday.
How many items should I bring to a craft fair?
Bring well above your break-even count so a good day isn’t capped by empty space. A common rule of thumb is to carry enough stock to take two to three times your break-even revenue, then use this tool to confirm what that sell-through means in profit. Stock that doesn’t sell simply travels to the next event, so the main constraint is what fits on your table and in your vehicle.