German federal election 2017

How does the German general election work?

On September 24, Germans head to the polls in a parliamentary vote that will determine whether Angela Merkel remains chancellor. DW breaks down the ins-and-outs of the Bundestag election process.

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#GermanyDecides: Explaining the German parliament

Germany has a notoriously complex voting system for electing its Bundestag — the lower house of parliament. The system seeks to combine the benefits of both direct and proportional representation while guarding against the electoral mistakes of German history, which saw political fragmentation during the Weimar Republic between WWI and WWII.

Read more: What you need to know about Germany's political parties

Who can vote?

The 2009 and 2013 parliamentary elections saw a significant drop in German voter turnout to around 70 percent, but with the rise of the populist movement that draws on non-voters in all democratic states, the numbers are expected to rise this year.

This year, 61.5 million people age 18 and above are eligible to vote in the national election, according to figures from Germany's Federal Statistics Office.

Of those, 31.7 million are women and 29.8 million are men, with some 3 million first-time voters. Over a third of Germany's electorate — 22 million people — are over 60 years old, meaning the older generation often has particular sway over the election outcome.

The largest number of eligible voters live in the western state of North Rhine-Westphalia (13.2 million), followed by the southern states of Bavaria (9.5 million) and Baden-Württemberg (7.8 million).

A voter prepares to check select two candidates from a German ballot. The ballot is divided into two columns. The first colum is black and the second column in blue, each representing a direct vote for a candidate or a vote for a political party

The ballot contains two votes: one for a candidate and one for a party

Read more: How does the day of polling work? And who counts the votes?

Split ballot

When Germans head to the polls on September 24, they'll receive a deceptively simple ballot with two choices - one for a district representative and one for a party.

The first vote or "Erststimme" for the district representative, follows a first-past-the-post system like elections in the United States. The voter selects his or her favorite candidate to represent their district in the parliament. Every candidate who wins one of Germany's 299 constituencies - which are divided up per 250,000 inhabitants - is guaranteed a seat.

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Merkel nominated as direct candidate

To fill the other half of the 598 seats in Germany's Bundestag, voters cast their ballots in the second vote or "Zweitstimme." This vote goes to a political party instead of a single candidate. It also determines the percentage each political party gets in the Bundestag.

German states with larger populations get to send more representatives to the Bundestag than the smaller ones.

What makes the elections particularly interesting is that the ballot allows voters to split their vote amongst parties, perhaps voting for their local CDU candidate in the first vote, but casting their ballot for the free market liberal Free Democrats (FDP) in the second vote, to help the CDU's traditional small coalition partner to get into parliament.

Infografik das Deutsche Wahlsystem ENG

Read more:  Possible coalitions in Germany

'Overhang' seats

Sometimes, a party will receive more direct parliament seats through the first vote than they deserve according to the party vote. Since each candidate who wins a district is guaranteed a seat, the party gets to maintain those "overhang" seats.

Other parties then also get more seats to make up for this, ultimately making the parliament larger than its base number of 598 seats.

Due to this, there are currently 630 seats in the Bundestag.

German representatives fill the blue chairs of the Bundestag which forms a crescent facing the stand from which speakers address the lower house. Onlookers fill the gallery above the seats. A large, silver eagle hangs on the far wall of the Bundestag

'The 5 percent hurdle'

In order for a party to enter the Bundestag, it has to win at least 5 percent of the second vote. This system was put in place to prevent smaller splinter parties - like those that bogged down the Weimar Republic in the 1920s - from entering parliament.

The "five percent hurdle" has served to keep the far-right NPD and other extremist parties out of the Bundestag until now.

Currently, there are five parties represented in the Bundestag: Chancellor Angela Merkel's center-right CDU and its Bavarian sister-party the Christian Social Union (CSU), the center-left Social Democrats (SPD), the Left Party and the Greens.

There are two key 5 percent threshold races to watch in the German elections this year: In 2013, the business-friendly Free Democrats (FDP) failed to make the 5 percent hurdle but may be able to reenter parliament this time around based on recent state election wins.

The other party to watch out for is the right-wing populist anti-immigrant Alternative for Germany (AfD) which also failed narrowly to enter the Bundestag in 2013, when they had been campaigning on a euroskeptic platform. Since then, however, the party has gathered enough support to have a presence not only in the European Parliament, but also in 13 out of Germany's 16 state parliaments.

Read more: 10 things you need to know about the AfD

Ballots being emptied onto a table for counting

There are strict regulations for the counting of ballots

Who picks the chancellor?

Unlike the presidential system in the United States, voters in Germany do not directly elect the chancellor, who is the head of the government. The new parliament must convene for the first time no later than one month after the vote.

It can be earlier if coalition talks go swiftly. The top candidate from the party that wins the most votes usually manages to forge a coalition. The president, who is the head of state and plays a largely ceremonial role, then presents this person as candidate for chancellor, who the newly-elected members of parliament then approve in a secret ballot.

If, as in the previous three elections, the CDU wins the majority of the vote, their candidate for chancellor, Angela Merkel, will hold the post for the next four years. In Germany there is no limit to the number of terms a chancellor may be in office. But so far no chancellor has served more than 16 years in total since Chancellor Helmut Kohl.

Germany holds general elections on September 24, 2017. Click here for DW's comprehensive coverage

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