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Turkey HBS: election polls, forecast accuracy and deviations

HBS: current voting intention polls in Turkey

Last Poll April 30, 2026

View poll
Polling period: April 1, 2026 – April 9, 2026 Respondents: 6,000

Change from poll on August 3, 2025

CHP
32.2
-2.6
AKP
30.9
+1.9
DEM
8.7
+0.6
A
6.4
5.8
-0.4
MHP
5.7
-1.7
ZP
3.2
-1.1
YRP
3.1
-1.2
0.9
Other
3.1
-2.8

Previous polls by HBS

Poll on Respondents CHP AKP DEM A İYİ MHP ZP YRP AP TİP Other View poll
August 3, 2025 3,200 34.8 29.0 8.1 6.2 7.4 4.3 4.3 5.9
July 19, 2025 3,200 34.6 29.8 7.9 6.2 7.0 4.6 4.3 5.6
May 31, 2025 3,200 35.2 28.6 7.7 6.2 7.8 5.0 4.8 1.3 3.4
April 30, 2025 3,200 34.3 27.7 9.0 6.0 7.6 5.4 5.0 1.2 1.8 2.0

HBS at a glance

63 PolitPro Score Rank 3 of 24 in Turkey
Score from 0 to 100 Avg. all polling institutes: 53.4
Avg. deviation in elections
2.2 pp

1 election comparisons

Recorded polls
18

Last on April 30, 2026

Deviations from the Election Trend

Party often overestimated Party often underestimated

What is the PolitPro Score for polling institutes?

In the PolitPro Score for polling institutes, we assess the reliability of polling institutes based on their accuracy in elections and their deviation from the Election Trend. Significant deviations in party values compared to the Election Trend lead to deductions, as they can indicate favoritism or disadvantage for parties. The score has a maximum value of 100.

HBS: which parties does it overstate and understate?

Significant from 20 % of polls
İYİ
Often rated higher
0 % 22 %
At trend level
78 %
Polls
18
CHP
No significant deviation
6 % 17 %
At trend level
78 %
Polls
18
MHP
No significant deviation
6 % 6 %
At trend level
89 %
Polls
18
Zafer Partisi
No significant deviation
18 % 6 %
At trend level
76 %
Polls
17
AKP
Often rated lower
33 % 6 %
At trend level
61 %
Polls
18
DEM
Often rated lower
61 % 0 %
At trend level
39 %
Polls
18
Anahtar Parti
Too few polls
Fewer than 5 polls – no statement possible
At trend level
Polls
1

How are the data calculated?

The PolitPro Election Trend, which calculates a time-weighted average of current election polls, serves as a reference. A poll value is considered higher/lower if it is more than one percentage point higher/lower than the Election Trend.

HBS: How accurate were its past election polls?

Accuracy in Elections 2.2 Percentage points deviation Significant Deviations Individual Parties: 1.6 to 2.7 percentage points
Parliamentary election in Turkey 2023 Rank 14 of 28 institutes
Very Accurate Very Inaccurate
Parliamentary election in Turkey 2023: 2.2
0 Very Reliable

In 0 elections, the pre-election poll was only slightly off the result.

0 Solid Results

In 0 elections, the pre-election poll deviated moderately from the result on average.

1 Significant Deviations

In 1 elections, pre-election polls and results differed significantly.

0 Very Large Deviations

In 0 elections, the pre-election poll significantly missed the result.

1 elections compared with HBS · Select point for details, tap category to highlight.

How do we calculate accuracy in elections?

Accuracy shows how close pre-election polls were to the actual election result. We compare the pre-election polls of the institutes with the actual result of an election. We compare the average deviation of the parties' values and form an average from them. In the calculation, we consider all parties with an election result of 3% and higher. Election polls have a margin of error of 2-3 percentage points. We rate average deviations of up to one percentage point as very good (green), and up to 2 percentage points as good (yellow). Values up to 3 percentage points deviation are rated as ok (orange), but already show significant outliers for some parties. Average deviations of more than three percentage points indicate deficiencies in accuracy and significance and are rated as bad (red).

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