Free calculators for UK online sellers, kept up to date with the latest marketplace fees and HMRC rules.
The price to list at on eBay, Etsy, Amazon and Vinted to make the profit you want.
eBayEvery category, VAT, Promoted Listings, a price finder and bulk mode.
EtsyAll Etsy fees including VAT, Offsite Ads and the new 0.48% regulatory fee.
AmazonEvery referral category, the 2% digital services fee, VAT, FBA or your own postage.
eBay vs VintedSee what you keep and what your buyer pays on each site, side by side.
HMRC & taxWill eBay or Vinted report you, and do you need to register for Self Assessment?
TaxNewHow much Income Tax and National Insurance you'll pay on your selling profit in 2026/27.