On 15 July 2021, Muqtada al-Sadr announced the Sadrist Movement intended to boycott the October 10th election, citing corruption and voter fraud and claiming that free and fair elections were impossible in the wake of the ongoing political crisis. On 24 July, the Iraqi Communist Party (which ran with the Sadrist Movement as the Alliance Towards Reforms in 2018), announced they were boycotting the elections, stating "In the absence of conditions for free and fair elections, participation in them would only mean collusion in reproducing the same corrupt political system that is responsible for the catastrophic state of affairs in the country."Louis Raphaël I Sako, Patriarch of the Chaldean Catholic Church, also called on Christians to boycott the election.
On 27 August, al-Sadr reversed his decision to boycott and announced his party would take part in the election.
On 9 October, Kurdistan Socialist Democratic Party announced that they would withdraw their candidates from the elections in Dohuk, Erbil and Sulaymaniyah governorates (10 constituencies) and declared their support for the Kurdistan Democratic Party.
Iraq's Independent High Electoral Commission initially published a national voter turnout of 42.15%, with 8,818,210 voters out of an electorate of 20,919,844. The Commission later updated these results to show a slightly lower turnout of 41.05%, based on 9,077,779 voters out of 22,116,368 eligible.
Soldiers, prisoners and displaced people voted early on 8 October.
The polls were held on 10 October. On 27 December, the Iraqi Supreme Court ratified the parliamentary election results after rejecting a complaint of irregularities filed by the pro-Iran Hashed al-Shaabi former paramilitary alliance. The High Electoral Commission announced partial preliminary results on 11 October. The Sadrist political bloc received the most seats after the initial count, with 73. The political Fatah (Conquest) Alliance, the political arm of the pro-Iran Hashed, won 17 seats, down from the 48 it had won in the prior election. Hashed leaders rejected the results, alleging "fraud" in the elections. They took their case to court seeking "to have the results annulled" because of "serious violations". On 12 October, the commission announced a manual count of polling stations that were not electronically counted in the initial canvass. Of the total 57,944 polling stations, 45,716 uploaded electronic results. 8,547 stations were selected by lottery to be manually counted, while the remaining 3,681 stations experienced technical difficulties necessitating a manual count as well. This manual count is expected to modify the overall allocation of seats.
On 15 October, the commission noted it had received 356 complaints about the preliminary election count by the 14 October deadline. The complaints division must address the complaints within seven days, which may then be reviewed by the judiciary within ten days. Final results will not be released until the complaints are resolved.
Late on 16 October, the commission announced its updated preliminary results after completion of manual recounts. The updated results triggered another opportunity to file election complaints with a deadline of 19 October. The commission had received over 1,000 complaints by 18 October, but a spokesperson stated it was unlikely the appeals will change the outcome.
Official final results, after recounting by The High Electoral Commission were shared on November 30.
The Kurdistan Democratic Party, which ran independently rather than as part of a multi-party coalition list, won an updated preliminary total of 33 seats, making it Iraq's single largest political party.
As for the seats reserved for minorities, the Babylon Movement won 4 seats out of 5 reserved for Christians, while 1 seat was gained by an independent candidate. The Yazidi single seat was won by the Yazidi Movement for Reform and Progress. Likewise, one seat each reserved for the Yezidi and Shabak communities were won by Nayef Khalaf Sido of the Yezidi Progress Party, and independent candidate Waad Mahmoud Ahmed respectively.
The United Nations Security Council issued a statement congratulating the people and Government of Iraq on the smooth conduct of a “technically sound election” and deploring related threats of violence. Jeanine Hennis-Plasschaert, Special Representative of United Nations, said the vote was generally peaceful and well-run. She added that “there is much for Iraqis to be proud of in this election.” She acknowledged that elections and their outcomes can provoke strong feelings, in Iraq or in any democracy across the globe and called for all groups to accept the outcome of the electoral process.
^The distribution of the number of electoral districts in each governorate relies on the number of quota seats for women multiplied by 3 or 5 seats for the electoral district depending on the governate’s population size.