Built for UK resellers

The reseller OS
built for UK sellers

Track inventory, calculate profit, and manage expenses in one place. Built specifically for eBay, Vinted and Depop sellers.

14 day free trial · No credit card required · Cancel anytime

Inventory
+ Add item
In stock24 items
Total value£847.50
Month profit+£234.80
ItemPlatformCostSaleProfit

Nike Air Max 90

Nike

eBay
£45.00£89.00+£44.00

Palace Hoodie L

Palace

Depop
£30.00£52.00+£22.00

Levi's 501 W32

Levi's

Vinted
£12.00

Supreme Box Logo Tee

Supreme

eBay
£120.00£198.00+£78.00

Jordan 1 Retro High

Nike

eBay
£85.00

Join resellers already using Marginn

Finally know if I'm actually making money after fees. Been reselling trainers for 2 years and Marginn saved me hours every single week.

S

Sarah M.

eBay · trainers & streetwear

I was losing money on half my sales without realising it. Marginn showed me exactly where I was going wrong and I fixed it within a week.

J

Jake R.

Vinted · vintage clothing

Tax time used to be a nightmare. Now I just export the report and send it straight to my accountant. Done in five minutes.

P

Priya K.

Depop & eBay · homewares

Everything you need to run your reselling business

Stop using spreadsheets. Start knowing your numbers.

Inventory Management

Track every item from purchase to sale. Know exactly what you own and what it's worth.

Profit Tracking

See your real profit after fees, shipping and expenses. No more guessing.

Expense Tracking

Log packaging, travel, subscriptions. Get a true picture of your margins.

Accountant Export

Export clean reports for your accountant with one click. Tax time sorted.

Up and running in minutes

No complicated setup. No spreadsheets.

01

Add your inventory

Log items as you source them — cost price, platform, condition, photos. Takes 30 seconds.

02

Mark items as sold

When you sell, mark it sold with the sale price. Marginn calculates your real profit automatically.

03

Export your reports

Share clean profit & loss reports with your accountant. HMRC-ready, one click.

Simple pricing

One plan. Everything included. Cancel anytime.

All in One

£12/month

14-day free trial included

  • Unlimited inventory items
  • Real profit per item after fees
  • Expense tracking & categorisation
  • Accountant-ready CSV export
  • eBay, Vinted & Depop support
  • Photo attachments per item
  • Priority support
Start free trial

14 days free, then £12/month. Cancel anytime.

Common questions

Know your margin.
Start today.

Join UK resellers who stopped guessing and started growing.

Start free trial

14 days free · No credit card required