The Tour Operators Margin Scheme is a special VAT arrangement that applies to businesses buying and reselling travel services as a principal. Under TOMS, you charge VAT on your profit margin rather than the full selling price of the package. This means if you buy a hotel room for £200 and sell it as part of a package for £300, VAT is calculated on the £100 margin rather than the full £300. TOMS applies to tour operators, some travel agents who act as principal, and any business that assembles and sells holiday packages. Applying standard VAT rules when TOMS should apply is treated by HMRC as a compliance failure and triggers backdated VAT liability with interest. We assess your exact business model, confirm whether TOMS applies to you, and handle every quarterly calculation accurately.