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Caio Matheus

Photo of Caio Arias Matheus
Caio Matheus
Caio Arias Matheus (legal name)
5 elections between 2008 and 2026 · latest party PSD
50 years old in 2026 · Male · Higher education, complete
Engenheiro
Candidate for State Deputy · São Paulo · 2026 elections · PSD · no. 55111
social media reported to the TSE

Caio Matheus (PSD) became an alternate for state deputy for São Paulo in 2026, with 16,258 votes, according to the final results from Brazil's Superior Electoral Court (TSE). Caio Matheus (Caio Arias Matheus) ran in 5 elections between 2008 and 2026, for state deputy, mayor and city councillor. He was elected 3 times: mayor of Bertioga in 2020 and 2016; city councillor of Bertioga in 2008. The highest vote was in 2016, for mayor in Bertioga/SP: 18,584 votes. In the 2026 campaign for state deputy for SP, reported R$ 662 thousand in income: R$ 340 thousand from the Electoral Fund (FEFC), R$ 40 thousand from the Party Fund, R$ 67 thousand de outros recursos do partido and R$ 215 thousand from private donations (37 donors). Contracted spending totals R$ 596 thousand, mainly on activists and street mobilization (R$ 185 thousand), content boosting (R$ 100 thousand) and staff (R$ 89 thousand). Partial amounts, according to the TSE data of 14/10/2026: the campaign finance report for this election is still in progress. In previous campaigns, already closed, reported contracted spending of R$ 543 thousand in 2020 and R$ 468 thousand in 2016.

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Vote trend across elections

16,258 votes in 2026 · 5 elections

The votes of Caio Arias Matheus in each election they ran in, from oldest to most recent. All on the same scale (the highest vote recorded); the color shows the office.

City CouncillorMayorState Dep.

The longest bar (the one that goes all the way) is the highest vote recorded for any office, elected or not; it works as a ruler, and all the other bars are proportional to it (the longer the bar, the more votes). What shows whether the person was elected is the fill, not the length: filled (colored) bar = elected; only the dashed outline = not elected; "to the runoff" = went to the runoff. From oldest (top) to newest. Click a bar to see the result of that election. The campaign finance report of each candidacy is in the list below.

Campaign funding

2026 (partial): R$ 662 thousand in income · R$ 596 thousand em gastos contratados

Caio Matheus reported income and spending to the TSE in 5 campaigns: city councillor in Bertioga (SP) in 2008, mayor in Bertioga (SP) in 2012, 2016 and 2020, and state deputy for São Paulo in 2026. The amounts are those of the time of each campaign, not adjusted for inflation. In the most recent campaign, in 2026, reported R$ 662 thousand in income: R$ 340 thousand from the Electoral Fund (FEFC), R$ 40 thousand from the Party Fund, R$ 67 thousand de outros recursos do partido and R$ 215 thousand from private donations (37 donors). Contracted spending totals R$ 596 thousand, mainly on activists and street mobilization (R$ 185 thousand) and content boosting (R$ 100 thousand); R$ 513 thousand has already been paid. In 2020, R$ 543 thousand in spending; in 2016, R$ 468 thousand in committed spending. 2026 amounts are partial, according to the TSE data of 14/10/2026.

Income in 2026R$ 662 thousandpartial, until 14/10/2026
Spending in 2026R$ 596 thousandcontracted, partial; R$ 513 thousand paid
Spending in 2020R$ 543 thousandcampaign closed; all paid
Campaigns5from 2008 to 2026

Fundraising, where the money came from:

  • Electoral Fund (FEFC)
  • Party Fund
  • Other resources from the party and other campaigns
  • Donations from individuals (includes crowdfunding)
  • Companies (until 2014)
  • Own funds
2026partialState deputy, São PauloSee donors and spending ›
Raised
R$ 662 thousand
37 individual donors
FEFC 51% · Party Fund 6% · party 10% · individuals 32%
Spending contracted
R$ 596 thousand
paid so far: R$ 513 thousand (86%)
  • Activists and street mobilizationR$ 185 thousand31.0%
  • Content boostingR$ 100 thousand16.8%
  • StaffR$ 89 thousand14.9%
  • Printed materialsR$ 57 thousand9.6%
  • 16 other categoriesincludes R$ 2 thousand entered as "miscellaneous, to be specified"R$ 165 thousand27.7%
2020Mayor, Bertioga (SP)See donors and spending ›
Raised
R$ 555 thousand
48 individual donors
FEFC 20% · Party Fund 5% · individuals 75%
Spending contracted
R$ 543 thousand
all paid (100%)
  • StaffR$ 170 thousand31.4%
  • Printed materialsR$ 70 thousand12.9%
  • Advertising with stickersR$ 59 thousand10.9%
  • Fuel and lubricantsR$ 50 thousand9.2%
  • 16 other categoriesincludes R$ 15 thousand entered as "miscellaneous, to be specified"R$ 193 thousand35.6%
2016Mayor, Bertioga (SP)See donors and spending ›
Raised
R$ 468 thousand
56 individual donors
Party Fund 6% · individuals 94%
Spending contracted
R$ 468 thousand
the TSE does not publish the amount paid for this year
  • StaffR$ 141 thousand30.2%
  • Printed materialsR$ 74 thousand15.7%
  • Fuel and lubricantsR$ 63 thousand13.6%
  • Production of radio, television or video programsR$ 50 thousand10.7%
  • 14 other categoriesincludes R$ 22 thousand entered as "miscellaneous, to be specified"R$ 139 thousand29.8%
See the 2 previous campaigns
2012Mayor, Bertioga (SP)See donors and spending ›
Raised
R$ 649 thousand
70 individual donors
party 26% · individuals 16% · companies 57% · own funds 1%
Spending contracted
R$ 338 thousand
the TSE does not publish the amount paid for this year
  • Printed materialsR$ 89 thousand26.4%
  • Fuel and lubricantsR$ 71 thousand21.0%
  • Production of radio, television or video programsR$ 32 thousand9.5%
  • Property rentalR$ 22 thousand6.4%
  • 14 other categoriesincludes R$ 26 thousand entered as "miscellaneous, to be specified" and R$ 36 thousand donated to other candidates and partiesR$ 124 thousand36.7%
2008City councillor, Bertioga (SP)See donors and spending ›
Raised
R$ 57 thousand
19 individual donors
party and other campaigns 2% · individuals 37% · companies 53% · own funds 7%
Spending contracted
R$ 57 thousand
the TSE does not publish the amount paid for this year
  • Advertising in newspapers and magazinesR$ 14 thousand25.3%
  • Printed materialsR$ 4 thousand7.6%
  • TelephoneR$ 4 thousand6.2%
  • Fuel and lubricantsR$ 2 thousand4.0%
  • 8 other categoriesincludes R$ 1 thousand entered as "miscellaneous, to be specified"R$ 32 thousand57.0%

Source: campaign finance reports filed with the TSE (open data). Radar do Voto has these data from 2006 on in general elections and from 2008 on in municipal elections; earlier campaigns do not appear. 2026: partial amounts, according to the TSE data of 14/10/2026; 2020: TSE data of 12/09/2026. Contracted spending is the total of the expenses the campaign reported; paid is the part already settled (the TSE only publishes the paid amount from 2018 on). The spending categories are the TSE's; the detail by supplier is in the dashboard. Corporate donations have been prohibited since 2015.

See donors, suppliers and spending ›

Candidacies

5 candidacies · elected in 2008, 2016 and 2020

This person's history at the polls, from the most recent candidacy to the oldest.

G é Eleição Geral: presidente, governador, senador e deputados. L é Eleição Local (municipal): prefeito e vereador. De 1933 a 1990 o TSE não publica cargo municipal, então esses anos são todos G.

A candidacy without votes is a registration that did not reach the ballot: according to the TSE data, a registration not approved, a withdrawal, or a running mate, who does not receive individual votes.

The race or color is the one the person declared to the TSE in the registration of each candidacy. The Court started collecting this information in 2014; that is why it does not appear in earlier candidacies.