[1] They were called in the aftermath of the 2021 Samoan general election, which resulted in seven seats being vacant due to resignations and convictions for bribery and treating.

While seven by-elections were called, the contest in Falealupo was resolved without the need for a poll, after the Supreme Court declared the HRPP candidate Tuitogamanaia Peniamina Le'avai to be ineligible, resulting in the FAST Party's Fuiono Tenina Crichton being elected unopposed.

[3] Following the by-election, the electoral commission declared Ali'imalemanu Alofa Tuuau and Faagasealii Sapoa Feagiai elected under the women's quota.

[19] On 22 November 2021 the Supreme Court ruled that Tuitogamanaia was ineligible to stand and disqualified him from the by-election, meaning Crichton was elected unopposed.

4, with FAST nominating Tagaloatele Pasi Poloa and the HRPP renominating its election candidate Tuisa Tasi Patea.

[1] In the lead up to the elections the government amended the Electoral Act to restore the use of special voting booths for those outside their constituency, reduce the pre-polling period, and limit the ability of village officials to block candidates.

[23][24] FAST candidate for Falealupo Fuiono Tenina Crichton challenged the eligibility of 186 voters for not being resident in the electorate.

[26] A week out from the by-election, Fuiono filed a court case challenging the eligibility of his opponent Tuitogamanaia Peniamina Junior Leavai's candidacy.

[29] FAST began its campaign on 23 October with a roadshow in Saleaumua,[30] and planned to use similar tactics to those used in the April elections.

[31] The HRPP initially denied they would hold roadshow events, which they had objected to as "a foreign practice" during the 2021 election campaign.

[35] On 24 October HRPP secretary Lealailepule Rimoni Aiafi accused the Samoa Observer of being "campaign managers" for the government after it had criticised his party.

[43][44] The speaker of the Legislative Assembly, Papali’i Li’o Taeu Masipau, announced on 10 December that the swearing-in of the two female MPs declared elected via the female parliamentary membership quota would not occur until the Supreme Court finalised legal challenges on their appointment.

Former FAST candidate To'omata Norah Leota also lodged a challenge, seeking to overturn the calculation used to apply the women's quota.