Who paid for Brexit campaigning

The full picture

The report’s donations table excludes political parties and donations between £500 and £7,500. These funding totals therefore have a different coverage from the spending total.

The two designated lead campaigns

The two designated lead campaigns spent almost identical sums — £6.77m and £6.74m, a difference of £25,118 on £13.5m. Both had the same £7m limit; similar reported spending alone does not establish compliance with every rule. The £6m gap in overall side totals comes from everyone else: political parties and the 58 other registered campaigners. Combined, the two designated campaigns spent £13,510,049 — about 41% of all reported referendum spending. The report’s aggregate differs by £1 from the sum of its two published lead-campaign figures; the source totals are retained. Political parties accounted for £9,030,300 and 58 other registered campaigners for £10,101,809.

What these figures do not include

• The £9.3m the government spent on a pro-Remain information leaflet delivered to every household, which fell outside the regulated campaign period and is not in these totals.
• Donations and loans at or below £500, which were not counted as donations under the referendum rules at all.
• Spending by campaigners who did not register, which was capped at £10,000 and not reportable.
• The outcome of the Commission’s subsequent investigations, some of which resulted in fines and referrals — the figures above are the returns as submitted.

The government leaflet is the largest of these by value. Including it would put total pro-Remain spending above £28m against Leave’s £13.3m — but it fell outside the regulated period and so is not part of the statutory return, which is why it is listed here rather than added to the chart.