Questions before your next flip.

Yes. The public page explains the service. The free calculator needs no account. Saved stock and analytics require sign-in and a workspace. The current sign-in uses ChatGPT. Your 7-day workspace trial starts once at account creation; refreshing, signing out or changing devices does not restart it.

No. Margin does not charge per item or take a fee when you record an external marketplace sale. Only the paid subscription you choose is billed through Stripe at checkout and on its scheduled renewals. Your marketplace may charge its own selling fees; include those in your costs.

Benchmark search is not part of this release. Optional sale contributions can be withdrawn per record or in Account. Your stock and sales stay private unless you explicitly opt in to future aggregate benchmarks.

Choose from 36 countries, 17 workspace currencies and six interface languages. Your ledger uses one fixed currency. Convert foreign prices yourself before entering them. Calculations do not fetch exchange rates or market values.

Record any lawful physical product, including trainers, clothing, electronics, homeware and collectibles. Save the model, size, colour, condition and your own source notes.

No. Calculations are free and unlimited without signing in. You supply the prices and costs. Calculations do not save inventory records.

Your existing records remain readable and exportable. Subscribe for £7.99/month to add or edit records. The calculator, support, deletion and privacy controls remain available.

Margin has one £7.99 monthly plan, a 7-day workspace trial without a card, and a free unlimited calculator. Paid checkout is available only after business setup is complete. A subscription starts only when you actively confirm it in Stripe Checkout. The trial never converts automatically.

Open Account in your workspace and choose Manage billing in Stripe. There is one monthly plan. The portal provides invoices, payment details and cancellation. Cancellation normally leaves paid access available until the current period ends. Starting another checkout is not the way to change an existing subscription.

No. This release focuses on stock, sales, profit tracking and buying calculations. You enter expected prices, costs and evidence links yourself. External product search and retailer feeds are not included.

No. Margin calculates using your own inputs. Net margin is profit divided by revenue; purchase ROI is profit divided by purchase cost. Include fees, delivery, packaging, duties, returns and other costs. Expected prices are not guaranteed sales.

Yes. Save supplier variants, unit costs and delivery times; record each completed order separately. Supplier catalogue entries are not owned stock. No automatic ordering or marketplace posting is connected.

International accounts use a chosen percentage of calendar-year profit, not local tax rules. UK tax modelling is restricted to UK/GBP accounts within its stated scope. Dates use Europe/London; the workspace trial lasts 7 days from account creation. No returns are filed or money moved.

Your workspace is account-private. The owner can see disclosed business results, usage and support requests. Personal income and tax settings are excluded from owner analytics. Reviews appear publicly only after consent and moderation.

Export stock as CSV with its currency and amounts in minor units. Contact support for account export, correction or deletion. Paid subscriptions can be cancelled at the end of the current billing period through the Stripe billing portal. Legal policies remain in English.

Use the signed-in support or review form. Requests receive a private reference; reviews need first-hand experience, consent and fair checks. No email is automatically sent. Never include passwords, tokens, card details or other people’s private records.