Statistics Data updated

Party Engagement

All current party groups compared across voting participation, debate appearances, rebellion rate, and expenses.

16 parties

Party MPs Participation
Con Conservative Rebellion: 0.9% Debates: 103.7/MP 118 76.9% 164,160/213,426
UUP Ulster Unionist Party Rebellion: 0.0% Debates: 125.0/MP 1 75.1% 452/602
Green Green Party Rebellion: 0.1% Debates: 106.8/MP 5 74.1% 1,908/2,576
Lab Labour Rebellion: 0.8% Debates: 67.9/MP 361 73.4% 316,196/430,526
Lab Labour (Co-op) Rebellion: 0.0% Debates: 81.3/MP 43 72.3% 42,532/58,845
TUV Traditional Unionist Voice Rebellion: 0.0% Debates: 199.0/MP 1 70.3% 423/602
PC Plaid Cymru Rebellion: 0.2% Debates: 92.8/MP 4 69.6% 3,986/5,725
RUK Reform UK Rebellion: 1.5% Debates: 89.5/MP 8 68.6% 7,923/11,549
YP Your Party Rebellion: 0.5% Debates: 80.0/MP 2 67.3% 2,730/4,058
LD Liberal Democrat Rebellion: 0.6% Debates: 122.8/MP 71 66.2% 39,923/60,334
DUP Democratic Unionist Party Rebellion: 0.6% Debates: 367.8/MP 5 64.2% 7,200/11,222
SNP Scottish National Party Rebellion: 0.1% Debates: 86.1/MP 8 51.1% 6,374/12,481
SDLP Social Democratic & Labour Party Rebellion: 0.1% Debates: 26.5/MP 2 49.3% 1,647/3,340
RB Restore Britain Rebellion: 0.0% Debates: 34.0/MP 1 32.7% 197/602
APNI Alliance Rebellion: 0.0% Debates: 58.0/MP 1 11.3% 68/602
SF Sinn Féin Rebellion: 0.0% Debates: 0.0/MP 7 0.0% 0/9,982
Commons average , 72.6%

Methodology

Participation is the total votes cast by a party's current MPs divided by the total eligible divisions for those MPs. An eligible division is one that occurred on or after the MP's Commons membership start date.

Average debates is the number of recorded Hansard debate appearances for the party's current MPs in the last 12 months, divided by the number of MPs in the party.

Rebellion rate is the percentage of a party's total votes that went against the majority of their own party group. This is not meaningful for very small parties where the majority direction is hard to define.

Average expenses is the total IPSA spend for the party's current MPs in 2024-25, divided by the number of party MPs. Only MPs who claimed expenses are counted in the total.

Commons average figures are the mean across all current MPs, for comparison. A Commons-wide rebellion rate is not shown because it would conflate all parties.

Excluded groups, Independent MPs and the Speaker/Deputy Speakers are excluded because they do not have a party whip.

Member source UK Parliament Members API
Voting source Commons Votes API
Debate source Hansard API
Expenses source IPSA Total Spend