Before the elections in 1921 the Social Democratic Left Party of Sweden accepted Lenin's April Theses and was renamed the Communist Party of Sweden, whilst a breakaway faction of some 6,000 socialists who had been excluded by the communists as "non-revolutionary elements" kept the previous name.

However, a significant number of people were still unable to vote, including those who had been declared incapable of managing their own affairs by a court of law.

[3] The five first women MPs were elected, with Kerstin Hesselgren in the Första kammaren and Nelly Thüring (Social Democrat), Agda Östlund (Social Democrat) Elisabeth Tamm (liberal) and Bertha Wellin (Conservative) in the Andra kammaren.

The centre-right majority took over the governing in 1923 under Ernst Trygger following a parliamentary loss for the Social Democrats over unemployment protection.

Alongside the universal franchise reform, a parliamentary system of government developed and gained acceptance, implying that the government requires the Riksdag's confidence and support for all major decisions.