| Labour Leave | Registered political party | Failure to deliver accurate campaign expenditure return Failure to deliver accurate weekly pre-poll donation report for 2016 EU Referendum | Offence | £8,000 and £1,000 variable monetary penalties | Sanctions were appropriate in this case | Paid on 8 March 2019 | 19 March 2019 |
| Conservative and Unionist Party | Registered political party | Inaccurate weekly pre-poll reports for 2017 UK general election | Offence | £6,250 variable monetary penalty | Sanctions were appropriate in this case | Paid on 7 March 2019 | 19 March 2019 |
| Conservative and Unionist Party | Registered political party | Inaccurate quarterly donations report Inaccurate quarterly transactions report | Offence | £4,800 and £250 variable monetary penalties | Sanctions were appropriate in this case | Paid on 7 March 2019 | 19 March 2019 |
| Liberal Democrats | Registered political party | Failure to deliver accurate quarterly donations reports | Offence | £4,000, £500 and £250 variable monetary penalties | Sanctions were appropriate in this case | Paid on 22 March 2019 | 21 May 2019 |
| The Regional Party | | Late delivery of quarterly transaction reports | Offence | No sanction | The party delivered two reports late, but there were mitigating factors, so no sanctions were imposed | Closed without further action | 19 March 2019 |
| Momemtum | Members association and recognised third party campaigner | Failure to deliver donation reports on time as a members association Failure to deliver an accurate spending return as a recognised third party | Offence | £12,150, £2,700, £900, £450, £250 and £250 variable monetary penalties | Sanctions were appropriate in this case | Paid on 29 March 2019 | 21 May 2019 |
| Friends Party | Registered political party | Failure to deliver quarterly donations reports on time | Offence | 4 x £600 variable monetary penalties | Sanctions were appropriate in this case. The party was removed from the register on 12 November 2018 | Due for payment by 11 March 2019 | 19 February 2019 |
| Scotland's Independence Referendum Party | Registered political party | Failure to deliver 2017 accounts | Offence | £1,000 variable monetary penalty | Sanctions were appropriate in this case | Due for payment by 11 March 2019 | 19 February 2019 |
| Women's Equality Party | Registered political party | Inaccurate weekly pre-poll reports for 2017 UK general election Inaccurate quarterly donations report | Offence | £600 and £250 variable monetary penalties | Sanctions were appropriate in this case | Paid on 23 January 2019 | 19 February 2019 |
| Trade Unionists Against the European Union | Permitted participant at the EU referendum | Payment of campaign expenses claim outside of 60 days | Offence | £250 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 7 January 2019 | 19 February 2019 |
| Matriarchal Party United Kingdom Great Britain | Registered political party | Late delivery of 2017 statement of accounts | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 7 January 2019 | 19 February 2019 |
| Labour Party | Registered political party | Failure to deliver accurate quarterly donations report Failure to deliver accurate weekly pre-poll reports for 2017 UK general election | Offence | £12,000 and £500 variable monetary penalties | Sanctions were appropriate in this case | Paid on 16 January 2019 | 19 February 2019 |
| Movement for Consensus | Registered political party | Late delivery of quarterly donations and loans reports, weekly pre-poll reports and 2017 annual accounts | Offence | £2,080 variable monetary penalty | Sanctions were appropriate in this case. The party was removed from the register on 2 November 2018 | Due for payment by 28 January 2019 | 15 January 2019 |
| Mr Robert Griffin | | Paying for campaign expenditure on behalf of the Liberal Democrats when not an authorised person | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 7 December 2018 | 15 January 2019 |
| Conservative and Unionist Party | High Peak accounting unit | Failure to return impermissible donation within 30 days of receipt | Offence | £200 fixed monetary penalty and forfeiture of full value of donation (£1,000) | Sanctions were appropriate in this case | Paid on 7 December 2018 | 15 January 2019 |
| National Health Action Party | Registered political party | Late delivery of 2017 statement of accounts | Offence | £500 variable monetary penalty | Sanctions were appropriate in this case | Paid on 18 December 2018 | 15 January 2019 |
| Liberal Democrats | Registered political party | Inaccurate quarterly donations report | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 17 December 2018 | 15 January 2019 |
| Hong Kong Independence Party | Registered political party | Failure to deliver 2017 statement of accounts | Offence | No sanction | The party failed to deliver the accounts, but we were satisfied that no sanction should be imposed. The party was removed from the register on 2 November 2018 | Closed without further action | 15 January 2019 |
| Farnworth and Kearsley First | Registered political party | Late delivery of quarterly donations report | Offence | No sanction | The party delivered two reports late, but we were satisfied that there were mitigating factors and didn't impose a sanction | Closed without further action | 15 January 2019 |
| Halstead Residents Association | Registered political party | Late delivery of 2017 statement of accounts | Offence | No sanction | The party delivered the accounts late, but we were satisfied that there were mitigating factors and didn't impose a sanction | Closed without further action | 15 January 2019 |
| Conservative and Unionist Party | Registered political party | Late delivery of quarterly donations report | Offence | £6,000 variable monetary penalty | Sanctions were appropriate in this case | Paid on 5 December 2018 | 18 December 2018 |
| Liberal Democrats | Registered political party | Failure to deliver accurate spending return for 2016 Scottish Parliamentary election | Offence | £500 variable monetary penalty | Sanctions were appropriate in this case | Paid on 14 December 2018 | 18 December 2018 |
| Kendal and Westmoreland Liberal Club | Unincorporated association | Failure to provide notification of a gift to a political party exceeding £25,000, and notification of gifts received by due date | Offence | £400 variable monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 15 November 2018 | 18 December 2018 |
| Spennymoor Independents | | Late delivery of 2017 statement of accounts | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on 12 December 2018 | 18 December 2018 |
| Scottish Democrats | Registered political party | Late delivery of 2017 statement of accounts | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 22 November 2018 | 18 December 2018 |
| Hextable Independent | Registered political party | Late delivery of 2017 statement of accounts | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on 21 December 2018 | 15 January 2019 |
| Co-operative party | Registered political party | Late delivery of quarterly donations report | Offence | No sanction | The report was delivered late, but we were satisfied that there were mitigating factors and didn't impose sanctions | Closed without further action | 18 December 2018 |
| Vapers in Power | Registered political party | Late delivery of 2017 statement of accounts | Offence | No sanction | The party failed to deliver the accounts, but it was removed from the register on 2 November 2018. The registered treasurer appeared to have moved away from the UK and couldn't be contacted | Closed without further action | 18 December 2019 |
| Temple and Farringdon Together | | Late delivery of 2017 statement of accounts | Offence | No sanction | The accounts were delivered late, but we were satisfied that there were mitigating factors and didn't impose a sanction | Closed without further action | 18 December 2018 |
| Wales Ireland Scotland England Reunited | Registered political party | Late delivery of quarterly donations and loans reports, and annual accounts | Offence | No sanction | The reports and accounts were delivered late, but we were satisfied that there were mitigating factors and didn't impose a sanction. The party was removed from the register on 26 October 2018 | Closed without further action | 18 December 2018 |
| Mr Paul Fisher | | Incurring campaign expenditure on behalf of Liberal Democrats without authority at the 2017 general election | Offence | No sanction | A penalty was not appropriate in this case | Closed without further action | 18 December 2018 |
| People's Assembly against Austerity | Recognised third party campaigner | Failure to include an imprint on election material and failure to deliver accurate spending return for 2017 UKPGE | Offence | £900 variable monetary penalty | Sanctions were appropriate in this case | Due for payment by 30 November 2018. Payment by instalments agreed | 20 November 2018 |
| Co-operative Party | Registered political party | Failure to deliver accurate spending return for 2017 UK general election | Offence | £750 variable monetary penalty | Sanctions were appropriate in this case | Paid on 14 November 2018 | 20 November 2018 |
| Ms Delyth Lloyd-Williams | | Failure to include an imprint on election material | Offence | £500 variable monetary penalty | Sanctions were appropriate in this case | Paid on 8 October 2018 | 20 November 2018 |
| Green Party | Registered political party | Failure to deliver accurate spending return for 2017 UK general election | Offence | £500 and £250 variable monetary penalty | Sanctions were appropriate in this case | Paid on 15 November 2018 | 20 November 2018 |
| Fianna Fail | Registered political party in Northern Ireland | Late delivery of 2017 statement of accounts | Offence | No sanction | The party delivered the accounts late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 20 November 2018 |
| Aspire | Registered political party | Late delivery of quarterly donations and loans reports | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction. | Closed without further action | 20 November 2018 |
| Holland on Sea and Eastcliffe Matters | Registered political party | Late delivery of 2017 statement of accounts | Offence | No sanction | The party delivered the accounts late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 20 November 2018 |
| Greater Manchester Homeless Voice | Registered political party | Late delivery of quarterly donations and loans reports | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction. The party was removed from the register on 2 November 2018 | Closed without further action | 20 November 2018 |
| Legacy | Registered political party | Late delivery of quarterly donations and loans reports | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 20 November 2018 |
| Bournemouth Independent Alliance | Registered political party | Late delivery of quarterly donations and loans reports | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 20 November 2018 |
| Herne Hill Communities and Libraries Campaign | Registered political party | Late delivery of quarterly donations and loans reports | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction. The party was removed from the register on 12 October 2018 | Closed without further action | 20 November 2018 |
| Mr Brian Parbutt | | Paying for campaign expenditure when not an authorised person | Offence | No sanction | Mr Parbutt made payments on behalf of the Labour Party at the 2017 UK general election when he was not an authorised person to do so. In the particular circumstances of the case however, we did not consider that a penalty was appropriate | Closed without further action | 20 November 2018 |
| Mr David Page | | Incurring campaign expenditure on behalf of Liberal Democrats without authority | Offence | No sanction | Mr Page incurred expenditure on behalf of the Liberal Democrats at the 2017 UK Parliamentary General Election without the proper authorisation from the party. In the particular circumstances of the case however, we did not consider that a penalty was appropriate | Closed without further action | 20 November 2018 |
| Mr Anthony Harris | | Incurring campaign expenditure on behalf of Liberal Democrats without authority | Offence | No sanction | Mr Harris incurred expenditure on behalf of the Liberal Democrats at the 2017 UK Parliamentary General Election without the proper authorisation from the party. In the particular circumstances of the case however, we did not consider that a penalty was appropriate | Closed without further action | 20 November 2018 |
| Compass | Recognised third party campaigner | Payment of campaign expenses claims outside 60 days | Offence | £500 variable monetary penalty | We considered, in accordance with the enforcement policy, that sanctions were appropriate in this case | 6 September 2018 | 18 September 2018 |
| Social Democratic and Labour Party | Registered party in Northern Ireland | Inaccurate quarterly donations reports and late notification of change of registered officer | Offence | 2 x £250 variable monetary penalties | We considered, in accordance with the enforcement policy, that sanctions were appropriate in this case | 5 September 2018 | 18 September 2018 |
| Irvine Unionist Club | Unincorporated association | Failure to provide notification of gifts to a political party exceeding £25,000, and notification of gifts received by due date | Offence | £400 variable monetary penalty | We considered, in accordance with the enforcement policy, that sanctions were appropriate in this case | 26 August 2018 | 18 September 2018 |
| Unite The Union | Recognised third party campaigner | Failure to deliver accurate spending return for 2017 UKPGE | Offence | £250 variable monetary penalty | We considered, in accordance with the enforcement policy, that sanctions were appropriate in this case | 7 September 2018 | 18 September 2018 |
| Friends Of The Earth Trust | Recognised third party campaigner | Late delivery of spending return for 2017 UKPGE | Offence | £250 variable monetary penalty | We considered, in accordance with the enforcement policy, that sanctions were appropriate in this case | Paid on first notice 8 August 2018 | 18 September 2018 |
| Ashford Independent | Registered political party | Late delivery of 2017 statement of accounts | Offence | No sanction | The party delivered the accounts late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 18 September 2018 |
| UKIP | Registered political party | Failure to return impermissible donation within 30 days of receipt | No offence | n/a | We investigated whether UKIP took impermissible donations from a European political party and foundation, the Alliance for Direct Democracy in Europe and the Initiative for Direct Democracy in Europe. We concluded that whilst the polling could have been of benefit to UKIP had it been provided, the evidence was insufficient to support a conclusion that the purpose of the polling was to be for the benefit of UKIP, or that UKIP received or benefited from any of the polling results | Closed without further action | 18 September 2018 |
| Traditional Unionist Voice | Registered party in Northern Ireland | Late delivery of spending return for 2017 UKPGE | Offence | £1,000 variable monetary penalty | Sanctions were appropriate in this case | Paid on 26 August 2018 | 18 September 2018 |
| Democratic Unionist Party | Registered party in Northern Ireland | Inaccurate quarterly loans reports | Offence | 2 x £500 variable monetary penalties | Sanctions were appropriate in this case | 14 August 2018 | 21 August 2018 |
| A Better Way To Govern | Registered political party | Late delivery of 2017 statement of accounts | Offence | No sanction | The party delivered the accounts late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 21 August 2018 |
| Sovereign Republic | Registered political party | Late delivery of quarterly reports | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 21 August 2018 |
| East Devon Alliance | Registered political party | Late delivery of 2017 statement of accounts | Offence | No sanction | The party delivered the accounts late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 21 August 2018 |
| Christian Peoples Alliance | Registered political party | Failure to deliver accurate spending return for 2017 UKPGE and provide required receipts. Late delivery of pre-poll reports for 2017 UKPGE. Failure to maintain proper accounting records. | Offence | 1 x £1,200 1 x £600 1 x £480 1 x £300 variable monetary penalty Total: £2,580 | Sanctions were appropriate in this case | Due for payment by 31 July 2018. An appeal against these penalties has been lodged and the requirement for payment is suspended pending the outcome of that appeal | 21 August 2018 |
| Compass | Registered political party | Failure to deliver spending return for 2017 UKPGE | Offence | £2,000 variable monetary penalty | Sanctions were appropriate in this case | Due for payment by 17 July 2018 | 24 July 2018 |
| Global Britain | Permitted participant at the EU Referendum | Inaccurate pre-poll and post-poll donations reporting | Offence | 1 x £1,000 2 x £250 variable monetary penalty | Sanctions were appropriate in this case | Paid on 16 July 2018 | 24 July 2018 |
| Best for Britain | Recognised third party campaigner | Failure to deliver accurate spending return for 2017 UKPGE Failure to return an impermissible donation | Offence | 1 x £1,000 1 x £250 variable monetary penalty | Sanctions were appropriate in this case | Paid on 4 July 2018 | 24 July 2018 |
| Friends Party | Registered political party | Failure to deliver compliant spending return for 2017 UKPGE | Offence | £1,000 variable monetary penalty | Sanctions were appropriate in this case | Due for payment on 20 July 2018 | 24 July 2018 |
| Hackney Labour Group | Unincorporated association | Failure to provide notification of gifts to a political party exceeding £25,000, and notification of gifts received by due date | Offence | £600 variable monetary penalty | Sanctions were appropriate in this case | Paid on 10 July 2018 | 24 July 2018 |
| National Health Action Party | Registered political party | Failure to deliver accurate spending return for 2017 UKPGE. Late delivery of pre-poll reports for 2017 UKPGE. Late delivery of quarterly reports. | Offence | 3 x £200 fixed monetary penalty | Sanctions were appropriate in this case | 29 June 2018 | 24 July 2018 |
| Labour Peers Group | Unincorporated association | Failure to provide notification of gifts to a political party exceeding £25,000, and notification of gifts received by due date | Offence | £400 variable monetary penalty | Sanctions were appropriate in this case | Paid on 5 July 2018 | 24 July 2018 |
| National Union of Teachers | Recognised third party campaigner | Failure to deliver accurate spending return for 2017 UKPGE | Offence | £250 variable monetary penalty | Sanctions were appropriate in this case | Paid on 23 July 2018 | 21 August 2018 |
| New Society of Worth | Registered political party | Late delivery of spending return for 2017 UKPGE | Offence | £250 variable monetary penalty | Sanctions were appropriate in this case | Paid on 11 July 2018 | 24 July 2018 |
| Vote Leave Limited | Permitted participant at the EU Referendum | Failure to deliver an accurate spending return for EU referendum, failure to comply with a statutory notice, exceeding referendum spending limit | Offence | £61,000 in penalties (3 x £20,000, and a £1,000 variable monetary penalty) | Sanctions were appropriate in this case | Paid on 1 April 2019 | 16 April 2019 |
| Darren Grimes | Permitted participant at the EU Referendum | Incurring of expenditure over £10,000 on behalf of a non-permitted participant (BeLeave) | Offence | £20,000 variable monetary penalty | Sanctions were appropriate in this case | An appeal against these penalties was lodged. The judgement, given on 19 July 2019, withdrew the £20,000 sanction imposed by the Commission | 20 August 2019 |
| Veterans for Britain | Permitted participant at the EU Referendum | Failure to deliver an accurate spending return for EU referendum | Offence | £250 variable monetary penalty | Sanctions were appropriate in this case | Paid on 26 July 2018 | 21 August 2018 |
| Plaid Cymru | Registered political party | Late delivery of quarterly reports | Offence | £500 variable monetary penalty | Sanctions were appropriate in this case | Paid on 18 June 2018 | 19 June 2018 |
| Concordia | Registered political party | Late delivery of spending return for 2017 UKPGE, inaccurate spending return, late weekly reports | Offence | £300 variable monetary penalty | Sanctions were appropriate in this case | Paid on 18 May 2018 | 19 June 2018 |
| Conservative and Unionist Party | Registered political party | Failure to return impermissible donation within 30 days of receipt | No determination of offence | n/a | The party accepted an impermissible donation with a value of £1,000. We accepted the voluntary forfeiture of the full value of the donation | Voluntary forfeiture | 19 June 2018 |
| Social Democratic Party | Registered political party | Late delivery of pre-poll reports for 2017 UK Parliamentary General Election | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed with no further action | 19 June 2018 |
| Justice Anti-Corruption Party | Registered political party | Late delivery of pre-poll reports for 2017 UK Parliamentary General Election | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 19 June 2018 |
| League Against Cruel Sports | Recognised third party campaigner | Late delivery of spending return for 2017 UK Parliamentary General Election | Offence | No sanction | The return was delivered late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 19 June 2018 |
| Something New | Registered political party | Late delivery of pre-poll reports for 2017 UK Parliamentary General Election | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 19 June 2018 |
| Newport Independents | Registered political party | Late delivery of quarterly donations and loans reports | Offence | No sanction | The party delivered some reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 19 June 2018 |
| Ulster Unionist Party | Registered party in Northern Ireland | Inaccurate quarterly donations and loans reports | Offence | No sanction | The party conducted a review of its reporting, as a result of a previous failure which led to a sanction. The review identified two minor inaccuracies in previous donation reports, which the party immediately reported to us. In the circumstances the we did not consider that it was appropriate to impose a sanction | Closed without further action | 19 June 2018 |
| Jeremy Hosking | Recognised third party campaigner | Failure to deliver accurate spending return for 2017 UK Parliamentary General Election | No offence | n/a | We initially reasonably suspected the return to be inaccurate but established that it was compliant | Closed without further action | 19 June 2018 |
| Better For Our Future Limited | Permitted participant at the EU Referendum | Failure to deliver an accurate spending return for EU referendum | Offence | £2,000 variable monetary penalty | Sanctions were appropriate in this case | Paid on 10 May 2018 | 15 May 2018 |
| Unison | Permitted participant at the EU Referendum | Failure to deliver an accurate spending return for EU referendum; late payment of an invoice | Offence | £1,500 variable monetary penalty | Sanctions were appropriate in this case | Paid on 4 May 2018 | 15 May 2018 |
| Democratic Party | Registered political party | Late delivery of 2016 statement of accounts | Offence | £1,000 variable monetary penalty | Sanctions were appropriate in this case | Due for payment by 30 May 2018. Payment by instalments agreed | 19 June 2018 |
| Ipswich Labour Group | Unincorporated association | Failure to provide notification of gifts to a political party exceeding £25,000, and notification of gifts received by due date | Offence | £600 variable monetary penalty | Sanctions were appropriate in this case | Paid on 31 May 2018 | 19 June 2018 |
| Scotland's Independence Referendum Party | Registered political party | Late delivery of pre-poll reports and failure to deliver accurate spending return for 2017 UK Parliamentary General Election Late delivery of quarterly reports | Offence | 3 x £200 fixed monetary penalties | Sanctions were appropriate in this case | Paid on 11 May 2018 | 15 May 2018 |
| English Independence | Registered political party | Late delivery of quarterly donations and loans reports | Offence | £600 variable monetary penalty | Sanctions were appropriate in this case | Due for payment by 23 May 2018 | 15 May 2018 |
| GMB | Permitted participant at the EU Referendum | Failure to deliver an accurate spending return for EU referendum | Offence | £500 variable monetary penalty | Sanctions were appropriate in this case | Paid on 24 April 2018 | 15 May 2018 |
| Sinn Fein | | Late delivery of pre-poll reports for 2017 UK Parliamentary General Election | Offence | 2 x £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on 31 May 2018 | 19 June 2018 |
| Protest Party | Registered political party | Late delivery of 2015 and 2016 statements of accounts | Offence | £300 variable monetary penalty | Sanctions were appropriate in this case | Paid on 9 May 2018 | 15 May 2018 |
| Yarm Independents | Registered political party | Late delivery of 2015 and 2016 statements of accounts | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 1 April 2018 | 15 May 2018 |
| Ashfield Independent Association | Registered political party | Late delivery of spending return for UK Parliamentary general election 2017 | Offence | No sanction | The return was delivered late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 15 May 2018 |
| Winchester Independents | Registered political party | Late delivery of 2016 statement of accounts | Offence | No sanction | The party delivered the accounts late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 15 May 2018 |
| Leave.EU | Permitted participant at the EU Referendum | Failure to deliver an accurate spending return for EU referendum, inaccurate pre-poll loans report, exceeding referendum spending limit | Offence | £70,000 in penalties (3 x £20,000, and a £10,000 variable monetary penalty) | Sanctions were appropriate in this case | An appeal against these penalties was lodged. Judgment in respect of the size of the penalties was given on 8 April 2019. The Court upheld three of the penalties imposed, totalling £50,000, but reduced one of the penalties from £20,000 to £16,000. Leave.EU was therefore fined £66,000 in total. Paid on 3 May 2019 | 21 May 2019 |
| Socialist Party GB | Registered political party | Late delivery of quarterly donations reports; weekly donations and loans reports for 2017 UKPGE; and 2016 statement of accounts | Offence | £10,000 variable monetary penalty | Sanctions were appropriate in this case | Paid on 11 April 208 | 17 April 2018 |
| British National Party | Registered political party | Late delivery of weekly donations report for 2017 UKPGE. Inaccurate weekly donations report. Late delivery of 2016 statement of accounts. | Offence | £5,500 variable monetary penalty | Sanctions were appropriate in this case | Due for payment by 18 April. Penalty increased to £6,875 on 16 May. Payment by instalments agreed | 19 June 2018 |
| Labour Party | Registered political party | Late delivery of quarterly loans report | Offence | £750 variable monetary penalty | Sanctions were appropriate in this case | Paid on 12 April 2018 | 17 April 2018 |
| True English Poetry Party | Registered political party | Late delivery of 2016 statement of accounts | Offence | £400 variable monetary party | Sanctions were appropriate in this case | Paid on 12 March 2018 | 17 April 2018 |
| Communities United Party | Registered political party | Late delivery of 2016 statement of accounts | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 15 March 2018 | 17 April 2018 |
| West Dunbartonshire Community Party | Registered political party | Late delivery of 2016 statement of accounts | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | Paid on first notice on 28 March 2018 | 17 April 2018 |
| North Norfolk Liberal Democrats | Accounting unit of a registered party | Failure to return impermissible donation within 30 days of receipt | Offence | £200 fixed monetary penalty | Sanctions were appropriate in this case | The party accepted an impermissible donation with a value of £1,000. We accepted the voluntary forfeiture of the full value of the donation, but also considered, in accordance with the enforcement policy, that a penalty was appropriate in this case | 17 April 2018 |
| Kensington and Chelsea Liberal Democrats | Accounting unit of a registered party | Failure to return impermissible donation within 30 days of receipt | Offence | No sanction | The party accepted an impermissible donation with a value of £1,000. We accepted the voluntary forfeiture of the full value of the donation and did not consider that a penalty was appropriate | Closed without further action | 17 April 2018 |
| Britain Yearly Meeting of the Religious Society of Friends (Quakers) | Non-party campaigner at the 2017 UK Parliamentary general election | Payment of campaign expenses claim outside 60 days | Offence | No sanction | The claim was paid outside of the statutory timescale, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 17 April 2018 |
| Rebooting Democracy | Registered political party | Late delivery of pre-poll reports for 2017 UKPGE | Offence | No sanction | The party delivered the reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 17 April 2018 |
| Swanscombe and Greenhithe Residents Association | Registered political party | Late delivery of quarterly donations and loans reports | Offence | No sanction | The party delivered the reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 17 April 2018 |
| Southampton Independents | Registered political party | Late delivery of pre-poll reports for 2017 UKPGE | Offence | No sanction | The party delivered the reports late, but we were satisfied that there were mitigating factors and did not impose a sanction | Closed without further action | 17 April 2018 |