Depending on the type of product, the location of the buyer and the tax status of the seller, there may be local sales taxes due (called VAT in the UK). 1854 will endeavor to indicate where this is applicable but it is the seller's duty to ensure compliance with tax laws on their sales.
Transaction statements will be available to export for the seller to use and 1854 recommends that sellers keep copies of all sales invoices. Sellers should also set up the correct product categories and country details and tax status to ensure the correct sales taxes can be applied.