Who pays Stamp Duty Reserve Tax, and who is exempt?

EthicsGradient

"In Secondary Markets, the UK average order book daily value traded rose by 9% to £5.8 billion (2017: £5.3 billion)" LSE Annual Report https://www.londonstockexchange.com/news-article/LSE/annual-financial-report/13986365?lang=en
In 2017-18, "Stamp taxes on shares (SDRT and SD) decreased by 5% to £3,520 million" HRMC https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/743345/ASTP-Release-Bulletin-Sept18.pdf
So I reckon that's 252 trading days a year, so about £1,370 billion turnover in traded shares a year; at 0.5% SDRT on all of it, that would be £6,850 million. Market makers don't pay SDRT. Is the "order book daily value traded" a reasonable measure of the trade in shares on the LSE? Does it include, say, value of SDRT-exempt ETFs? Does it not include any major form of trade that is subject to SDRT? I'm trying to work out if there's a large class of traders who get away without paying the tax the rest of us do.

Thrugelmir

There's no stamp duty on a number of investment classes, AIM being one, international shares being another. 

EthicsGradient

Thrugelmir said:

There's no stamp duty on a number of investment classes, AIM being one, international shares being another. 

Good points. I found the LSE's statistics here: https://www.londonstockexchange.com/reports?tab=equities
For 2017, the total of trades in companies incorporated in GB (which I guess includes Northern Ireland, but definitely does not include Jersey etc. which are listed separately) on the main market was £1,448 billion ("On Book & Off Book"). Which would be £7,240 million at 0.5% tax. Almost exactly twice what was paid - which might mean that those figures count sales to market makers and purchases from them as 2 transactions, with the purchases being half of the total, ie roughly £724 billion. With SDRT being collected on almost all of it.

For comparison, when AIM and international shares (and "admission to trading only") are counted too, it's £1,963 billion.