How votes become seats?
How votes become seats — and what would happen if things were different? Build scenarios, test coalitions, predict outcomes, learn how the system works.
Mandator gives you the tools to understand how votes become seats — and what would happen if things were different. Build scenarios, test coalitions, predict outcomes, learn how the system works.
The total votes for each list are divided by 1, 2, 3… up to 250. Quotients are sorted from largest to smallest — the top 250 win seats. Green = seat won.
The threshold is 3% of all valid ballots (from 2020; previously 5%). National minority lists receive a 35% increase in their coefficients (from 2020; previously no increase).
The highest quotient system sounds neutral, but in practice it slightly favours larger lists. Result: a political actor with 40% of votes often wins more than 40% of seats, while an actor with 5% wins slightly less than 5%.
Concrete example — 2023 parliamentary elections: the list "Serbia Must Not Stop" won 46.75% of votes, but received 129 out of 250 seats, which is 51.6%. The "Serbia Against Violence" list with 23.66% of votes received 58 seats (23.2%) - nearly proportional, as they are also a large list. Smaller lists typically receive a slightly smaller share of seats than their share of votes.
Each list must win at least 3% of the total valid ballots to participate in seat allocation. The exception is national minority parties — they participate regardless of percentage.
Important: the 3% threshold has been in effect since the 2020 parliamentary elections. In all previous elections (2008, 2012, 2014, 2016) the threshold was 5%. The 35% increase in D'Hondt coefficients for national minority lists also applies from 2020 — in earlier elections, minority parties did not have this increase.
Serbia applies a natural threshold for national minority parties — they enter seat allocation regardless of the percentage of votes won. As compensation for their small electorate, the D'Hondt coefficients of minority lists are always increased by 35%. This has applied since 2020 — in earlier elections, minority parties did not have this increase.
If a list does not pass the threshold (3% of valid ballots), all votes that list received are excluded from seat allocation — as if those voters never voted. These votes do not just disappear for that list — they effectively increase the percentage won by parties that did pass the threshold.
A dramatic difference in practice: in the 2016 only 3.6% of valid ballots remained below the threshold (around 130,000). In the 2014, due to the then-applicable 5% threshold, as many as 20.1% of valid ballots — nearly 700,000 voters whose votes did not enter seat allocation. Dveri (3.69%), DSS (4.38%), LDP (3.48%) and United Regions of Serbia (3.14%) all passed 3% but not 5%, and received zero seats.
The threshold is calculated from valid ballots — not from the total number of voters who turned out. Invalid ballots (blank, incorrectly filled) do not count towards the threshold or seat allocation. In the 2023 elections there were about 104,000 invalid ballots (2.7% of turnout). This means the threshold was 3% of 3,710,978, not of the total turnout of 3,820,746.
In Serbia, voters vote for an electoral list, not for individual candidates. Which candidates from a list win seats depends exclusively on their order on the list, determined by the party itself — there is no preferential voting. A voter cannot influence who specifically becomes an MP, only how many seats the list receives.
Forming a government requires an absolute majority — 126 out of 250 MPs. But the number that votes for the government does not have to equal the number of seats won by the ruling parties in the election.
The reason: parliamentary seats in Serbia are free mandates, meaning an MP or even an entire parliamentary group can vote against the party line, support a government that their party nominally opposed, or leave their group and join another. In practice, it has happened that parties that were in opposition after the election supported the government during the vote, or that MPs crossed over to the ruling side during the term.
That is why Mandator displays the official data on how many MPs voted for the formation of each government — that number often differs from the total seats of the ruling coalition from the election. And that is why in Mandator you can change the status of any parliamentary group from ruling majority to opposition and vice versa — and judging by experience, it is more often the latter.
