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TOMS

The Tour Operators' Margin Scheme, calculated for you

TOMS makes VAT due on your margin — the selling price less the bought-in cost of travel — not on the full sale. OneSixth runs the provisional calculation each period, handles the departure-date VAT point, and produces the year-end annual adjustment, all linked back to your ledger.

  • Tour operators & travel agents
  • Conference & event organisers
  • Wedding & destination planners
  • Anyone reselling bought-in travel
See how OneSixth handles itRead the full guide

Why TOMS catches everyone out

TOMS is mandatory for any business that buys in travel services and resells them in its own name — not just tour operators. It catches conference organisers, event and wedding planners, and management companies. The workflow breaks in three predictable places: the VAT point is the departure date (not the booking date), the scheme runs on provisional VAT during the year, and it all has to be trued up with a year-end annual adjustment. Standard ledgers hold one transaction date and no concept of a provisional margin, so the whole thing ends up in a spreadsheet.

What is TOMS and who has to use it?

The Tour Operators' Margin Scheme is a compulsory VAT scheme for businesses that buy in travel services (accommodation, transport, car hire) and resell them as principal or undisclosed agent. If you resell travel you bought in your own name, you're likely in TOMS whatever you call yourself — including conference, event and wedding organisers who bundle travel into what they sell.

How is VAT calculated under TOMS?

VAT is due on your margin — selling price less the bought-in cost of the travel — not on the full sale. At the 20% rate the VAT is one-sixth of the margin, and you can't reclaim input VAT on the bought-in travel; it's absorbed into cost. OneSixth calculates the margin percentage, applies it provisionally each quarter, and reconciles it at year-end.

Booking date vs departure date

The VAT point under TOMS is departure — VAT becomes due when the customer travels, often months after booking and payment. Because standard ledgers hold only one transaction date, that gap is the root of most TOMS workflow problems. OneSixth tracks departure so revenue lands in the correct VAT period.

UK vs non-UK travel after Brexit

Since 1 January 2021 the margin on travel enjoyed outside the UK is zero-rated, while UK travel stays standard-rated under TOMS. Mixed sellers must split the margin between the two — OneSixth handles the split and posts the correct output VAT codes so your return is right.

How OneSixth handles it

1

Pull your travel sales & costs

OneSixth reads bookings and bought-in travel costs from your connected ledger and organises them by departure date.

2

Post provisional VAT

The provisional margin percentage is applied each period and posted as a reviewable journal — no spreadsheet in the middle.

3

Run the year-end adjustment

At year-end OneSixth recalculates the actual margin, sets next year's provisional percentage, and posts the annual adjustment.

Works alongside your ledger

OneSixth connects to Xero, QuickBooks Online, Sage and FreeAgent — it calculates the VAT and posts a reviewable journal, it doesn't replace your accounting system.

Get startedSee pricing

Common questions

Who has to use the Tour Operators' Margin Scheme?+

TOMS is mandatory for any business that buys in travel services (accommodation, transport, car hire) and resells them in its own name as principal or undisclosed agent — not just tour operators. It catches conference organisers, event and wedding planners, and management companies.

How is VAT calculated under TOMS?+

VAT is due on your margin — selling price less the bought-in cost of the travel — not on the full sale. At the 20% rate the VAT is one-sixth of the margin, and you can't reclaim input VAT on the bought-in travel; it's absorbed into cost.

Is the VAT point the booking date or the departure date?+

Departure. VAT becomes due when the customer travels, often months after booking and payment — and because standard ledgers hold only one transaction date, that gap is the root of most TOMS workflow problems.

Does TOMS still apply to non-UK holidays after Brexit?+

Since 1 January 2021 the margin on travel enjoyed outside the UK is zero-rated, while UK travel stays standard-rated under TOMS; mixed sellers must split the margin between the two.

Can Xero, QuickBooks, Sage or FreeAgent handle TOMS?+

No — none of the major cloud platforms calculate the TOMS margin or the year-end adjustment natively. The standard route is custom tax codes plus a spreadsheet with a manual journal. OneSixth runs the calculation alongside the ledger instead.

Go deeper

Guide

TOMS without the spreadsheet

Free 5-page guide for tour operators and their accountants.

Reading

Doing TOMS in Xero

Where the manual Xero workflow breaks — and how to fix it.

Reading

The annual adjustment trap

Why year-end adjustments compound small quarterly errors.

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Simplify margin VAT, TOMS and partial exemption across Xero, QuickBooks Online, Sage and FreeAgent. Built for UK accounting professionals.

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OneSixth is a trading name of Option To VAT Limited, a company registered in England & Wales (company number 15668306). Registered office: One Express C/O Beever And Struthers, 1 George Leigh Street, Manchester, M4 5DL, United Kingdom. VAT registration number 523 3658 94 (effective 1 August 2026). Registered with the UK Information Commissioner's Office, registration number ZC197273. Contact: support@onesixth.app.

Not tax advice. OneSixth provides VAT margin scheme, partial exemption and TOMS calculations from data you and your connected accounting platform supply. It is a software tool — not tax, legal or accounting advice. You remain responsible for reviewing every calculation and journal before submission to HMRC. For advice specific to your circumstances, consult a qualified tax adviser.

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