Compare

Sir Iain Duncan Smith vs Dr Peter Prinsley

A side-by-side comparison of voting participation, party rebellion, topic focus, and recent voting overlap.

Photograph of Sir Iain Duncan Smith
Sir Iain Duncan Smith
Con Chingford and Woodford Green
vs
Photograph of Dr Peter Prinsley
Dr Peter Prinsley
Lab Bury St Edmunds and Stowmarket

Voting alignment

Sir Iain Duncan Smith and Dr Peter Prinsley voted the same way 2% of the time, based on 372 shared comparable votes.

7 same votes 365 different votes 372 shared votes

Alignment only includes divisions where both MPs recorded an Aye or No vote. Tellers, absences, abstentions, and missing votes are excluded.

Topic alignment

Closest by topic
4 Aye 4 No
Migration 13% aligned 8 shared votes
3 Aye 5 No
4 Aye 5 No
Democracy / Parliament 11% aligned 9 shared votes
4 Aye 5 No
4 Aye 15 No
Benefits 11% aligned 19 shared votes
13 Aye 6 No
20 Aye 21 No
Crime / Justice 7% aligned 41 shared votes
20 Aye 21 No
30 Aye 42 No
Tax 0% aligned 72 shared votes
42 Aye 30 No
Most different by topic
30 Aye 42 No
Tax 0% aligned 72 shared votes
42 Aye 30 No
9 Aye 26 No
Education 0% aligned 35 shared votes
26 Aye 9 No
14 Aye 13 No
Defence 0% aligned 27 shared votes
13 Aye 14 No
8 Aye 18 No
Housing 0% aligned 26 shared votes
18 Aye 8 No
4 Aye 18 No
Work / Employment 0% aligned 22 shared votes
18 Aye 4 No

Topic alignment uses local topic tags, so a division can count towards more than one topic.

Voting record

81.3%
9% above average
Rank 172 of 650
Participation
83.7%
11% above average
Rank 118 of 650
1,956
2,406 eligible divisions
Total votes
519
620 eligible divisions
898
45.9% of votes cast
Aye votes
260
50.1% of votes cast
1,058
54.1% of votes cast
No votes
259
49.9% of votes cast
41
2.1% of votes cast
Against party
0
0.0% of votes cast
34 years, 6 months
Since 9 Apr 1992
Commons service
2 years, 3 months
Since 4 Jul 2024

Debates

99
+6.0 vs Commons average
Rank 223 of 650
Appearances
192
+99.0 vs Commons average
Rank 40 of 650
161
-1.0 vs Commons average
Rank 218 of 650
Contributions
278
+116.0 vs Commons average
Rank 88 of 650

Debate figures cover imported Hansard debate appearances from the last 12 months.

Financials and interests

£2,530,064
all imported IPSA years
Lifetime expenses
£206,728
all imported IPSA years
£265,254
17% above average
Latest expenses
£206,728
9% below average
8
3 registered categories
Registered interests
7
3 registered categories
6
matched sponsored bills
Sponsored bills
0
matched sponsored bills

Expenses use IPSA totals for financial year 2024-25. Sponsored bill counts depend on currently imported bill sponsor metadata.

Most active voting topics

Brexit / EU
209 of 212 votes
#1
Defence
34 of 34 votes
Foreign Affairs
75 of 82 votes
#2
Energy
20 of 20 votes
Housing
60 of 67 votes
#3
Foreign Affairs
17 of 17 votes
Migration
153 of 171 votes
#4
Democracy / Parliament
14 of 14 votes
Crime / Justice
198 of 234 votes
#5
Migration
13 of 13 votes

Recent voting overlap

Where they voted differently
No
Draft Town and Country Planning (Fees for Applications, Deemed Applications, Requests and Site Visits) (England) (Amendment and Transitional Provision) Regulations 2026 27 Oct 2026
Aye
No
Withdrawal Agreement (Windsor Framework and Governance) (Amendment) Regulations 2026 21 Oct 2026
Brexit / EU Foreign Affairs
Aye
No
Draft Railways (Interoperability in Northern Ireland) (Convention on International Carriage by Rail) (Amendment) Regulations 2026 21 Oct 2026
Transport
Aye
No
Draft Code of Practice on Access and Unfair Practices During the Recognition and Derecognition Process 21 Oct 2026
Aye
No
Northern Ireland Troubles Bill: Third Reading 20 Oct 2026
Foreign Affairs
Aye
Aye
Northern Ireland Troubles Bill Committee: New Clause 12 20 Oct 2026
Foreign Affairs
No
Aye
Northern Ireland Troubles Bill Committee: New Clause 7 20 Oct 2026
Foreign Affairs
No
Aye
Northern Ireland Troubles Bill Committee: Amendment 32 20 Oct 2026
Foreign Affairs
No
Aye
Northern Ireland Troubles Bill Committee: Amendment 51 20 Oct 2026
Foreign Affairs
No
Aye
Northern Ireland Troubles Bill Committee: New Clause 21 19 Oct 2026
Foreign Affairs
No
Where they voted the same
No
Representation of the People Bill: Report Stage: New Clause 88 2 Sept 2026
Democracy / Parliament
No
No
Sentencing Bill Committee: New Clause 30 21 Oct 2025
Crime / Justice
No
No
Universal Credit and Personal Independence Payment Bill Committee: New Clause 8 9 Jul 2025
Benefits
No
No
Universal Credit and Personal Independent Payment Bill Committee: Amendment 39 9 Jul 2025
Benefits
No
Aye
Terrorism Act 2000 (Proscribed Organisations) (Amendment) Order 2025 2 Jul 2025
Crime / Justice
Aye
No
Crime and Policing Bill Report Stage: Amendment 160 17 Jun 2025
Crime / Justice
No
No
Border Security, Asylum and Immigration Bill Report Stage: New Clause 21 12 May 2025
Migration
No
Member source UK Parliament Members API
Voting source Commons Votes API