*Club domestic league appearances and goals, correct as of 10 November 2024 ‡ National team caps and goals, correct as of 18:33, 20 November 2023 (UTC)
Araújo joined Benfica's academy in 2016, aged 14, having previously played at youth level for Operário Famalicão, Palmeiras FC and Evolution Soccer Academy.[1] On 22 May 2018, he signed his first professional contract with Benfica, until 2021.[2]
After rising through the club's youth ranks, Araújo made his professional debut for Benfica's B team on 19 September 2020, coming off the bench to replace Pedro Ganchas on the 71st minute of a 6–0 victory away at Casa Pia, in the Liga Portugal 2.[3] He made his first professional start on 24 October, playing the full 90 minutes in a 1–0 league defeat at home against Académico de Viseu.[4] On 16 January 2021, Araújo scored his first professional goal, the opener in a 2–2 league draw at home to Académica de Coimbra.[5]
On 2 March 2021, Araújo signed a new deal with Benfica. The duration of the contract was undisclosed.[6]
On 15 December 2021, aged 19, Araújo made his debut for Benfica's main team, starting and playing the full match in a 3–0 home victory over Sporting da Covilhã in the Taça da Liga.[7] On 27 February 2022, he made his Primeira Liga debut, coming off the bench to replace Jan Vertonghen in extra-time of a 3–0 home victory over Vitória de Guimarães.[8] On 13 May, Araújo made his first Primeira Liga start, playing the full match in a 2–0 victory away at Paços de Ferreira.[9]
On 27 July 2022, Benfica sent Araújo on a season-long loan to fellow Primeira Liga club Gil Vicente.[10] He made his debut for the Barcelos side on 18 August, starting in a 4–0 defeat away to AZ Alkmaar in the play-off round of the UEFA Europa Conference League.[11] On 3 September, he made his first league appearance for Gil Vicente, coming on as a second-half substitute in a 2–0 home defeat to Porto.[12] Araújo scored his first Primeira Liga goal on 5 March 2023, Gil Vicente's second in a 2–0 victory at home against Marítimo.[13]
At the end of the 2022–23 season, Araújo returned to Benfica and, having impressed on loan, on 24 July 2023, he signed a new contract with the Eagles until 2028.[14]
^"Vitória escapa nos instantes finais" [Victory escapes in the final instants] (in European Portuguese). SL Benfica. 16 January 2021. Retrieved 24 September 2023.
^"Tomás Araújo renova contrato" [Tomás Araújo renews contract] (in European Portuguese). SL Benfica. 2 March 2021. Retrieved 24 September 2023.