✶ Money · CPEUM art. 41 base II · LGPP arts. 50–56 · LGIPE art. 243
Public money first.
The Constitution requires public money to prevail over private money in party finances. Each August INE works out
the next year's funding with a fixed formula, which it may not alter. For 2027, a midterm year, the eight
national parties get MX$10,480 million in cash, MX$3,572 million of it for Morena.
The formula · financiamiento público
Voters × 65% of a UMA, then 30/70.
For 2026: 100,191,072 people on the padrón (cut 31 July 2025) × 65% of the
daily UMA of MX$113.14 (MX$73.5410) = MX$7,368 million for ordinary
activities. 30% is shared equally, MX$368,407,581 for each of the six parties; 70% by each
party's share of the 2024 deputies' vote.
Public money must prevail over private money in party finances. (los recursos públicos prevalezcan sobre los de origen privado)CPEUM art. 41, base II, first paragraph ↗
Ordinary funding each year = citizens on the electoral register (padrón, cut 31 July) × 65 % of the daily UMA. 30 % is shared equally, 70 % by each party's share of the vote in the last election of deputies. (actividades ordinarias permanentes)CPEUM art. 41, base II, a); LGPP art. 51.1.a.I–II ↗
Campaign funding in a year with presidential and congressional elections = 50 % of each party's ordinary funding; in a year with only deputies (midterm) = 30 %. (gastos de campaña / actividades tendientes a la obtención del voto)CPEUM art. 41, base II, b); LGPP art. 51.1.b ↗
Specific activities (civic education, research, publishing) = 3 % of the ordinary total, split 30 % equally and 70 % by vote share. (actividades específicas)CPEUM art. 41, base II, c); LGPP art. 51.1.c ↗
Each party must spend 3 % of its ordinary funding on training, promotion and development of women's political leadership. (liderazgo político de las mujeres)LGPP art. 51.1.a.V ↗
A party registered after the last election gets 2 % of the ordinary total (and, in an election year, the matching campaign money), and shares only in the equal part of specific-activities funding.LGPP art. 51.2–3 ↗
Postal franchise: 2 % of ordinary funding in non-election years, 4 % in election years, shared equally. Telegraph franchise is also provided. Neither is paid to parties in cash. (franquicias postales y telegráficas)LGIPE arts. 187–189 ↗
INE may not alter the calculation or the resulting amounts; the money is not part of INE's own budget.LGIPE art. 31.3 ↗
Try it · CPEUM art. 41 base II · LGPP art. 51
What each party gets
Ordinary pool
—
Equal share each (30%)
—
All cash funding
—
Party
Ordinary
Campaign
Specific
vs INE
Pesos. INE rounds the equal share to the peso and splits the 70% by largest remainder; campaign money is 50% or 30% of
each party's unrounded ordinary amount. Shares move the 2024 votes in proportion, keeping the VNE.
Per party · INE acuerdos 2024–2027
Four years of acuerdos.
Ordinary
Campaign
Specific
2024 · general election: campaign money = 50% of ordinary · INE/CG493/2023 ↗
Cash funding per party: ordinary activities + campaign + specific activities, as printed in each INE acuerdo. Postal
and telegraph franchises (not paid in cash) and independents' campaign money are left out.
Campaign column includes independents' share (MX$66.1 million in 2024,
MX$47.3 million in 2027). Per-party postal and telegraph amounts are for January–June 2026; the second-semester amounts were reserved for the parties registered by then (Partido Paz and Somos México obtained registration on 25 June 2026). The redistribution acuerdo for July–December 2026 was not located. The 2027 acuerdo gives PAZ and SOMOS 2% of the
ordinary pool each (MX$157,586,634), off the top,
as LGPP art. 51.2 sets for parties registered after the last election.
Members, per partyMX$132,195,7452% of all parties' ordinary funding
Supporters, per partyMX$42,963,33310% of the 2018 presidential cap of MX$429,633,325
Candidates, per partyMX$42,963,333same 10%
One supporter, a yearMX$2,148,1670.5% of that cap
Private money may come only from members, supporters, self-financing, and financial returns (funds, trusts). (militancia, simpatizantes, autofinanciamiento, rendimientos financieros)LGPP art. 53.1 ↗
No donations from federal, state or municipal authorities, public bodies, foreign parties or persons, international organisations, companies (personas morales), or people living or working abroad. Parties may not borrow from development banks.LGPP art. 54 ↗
Members' contributions to a party: at most 2 % of the public ordinary (and pre-campaign) funding of all parties that year.LGPP art. 56.2.a ↗
Candidates' and supporters' contributions during an electoral process: at most 10 % of the previous presidential campaign spending cap; one supporter at most 0.5 % of that cap a year.LGPP art. 56.2.b and d ↗
Total private funding of a party, in all forms, may not exceed its public funding for ordinary and specific activities (INE/CG592/2023, resolutive point five).CPEUM art. 41, base II; INE/CG592/2023 punto QUINTO ↗
“La suma del financiamiento privado, bajo todas sus modalidades, incluido el autofinanciamiento y rendimientos financieros, no podrá ser superior al financiamiento público para actividades ordinarias permanentes y específicas (resolutivo QUINTO).”
Spending caps · 2024 general election · INE/CG554/2023
MX$661 million for a presidential campaign.
The presidential cap is 20% of all parties' campaign funding for 2024 (MX$3,304,893,614):
MX$660,978,723, with MX$85,926,665 for a
pre-campaign. A district deputy's cap is that ÷ 300: MX$2,203,262 (MX$329,638 pre-campaign). A Senate slate's cap is the deputy cap × the state's
districts, counting at most 20.
Presidential campaign cap = 20 % of the public campaign funding of all parties in the election year. (tope de gastos de campaña)LGIPE art. 243.4.a ↗
District deputy cap = presidential cap ÷ 300 (in a midterm-only year, updated by the growth of the minimum wage).LGIPE art. 243.4.b.I ↗
Senate formula cap = deputy cap × the state's federal districts, counting at most 20.LGIPE art. 243.4.b.II ↗
Pre-campaign cap per pre-candidate = 20 % of the cap for the previous campaign of the same office. (tope de gastos de precampaña)LGIPE art. 229.1 ↗
Parties, candidates and third parties may not buy radio or TV time; parties broadcast only in the state's airtime administered by INE. (tiempos del Estado)CPEUM art. 41, base III, apartado A ↗
An election can be annulled for serious, intentional and decisive violations: overspending the cap by 5 % or more; buying news coverage or broadcast time; illicit or public money in campaigns; and (since DOF 02-06-2026) proven foreign interference. Violations are presumed decisive when first and second place are less than 5 points apart.CPEUM art. 41, base VI ↗
INE's General Council audits the income and spending of parties and candidates (fiscalización), through its Oversight Commission and Technical Oversight Unit (Unidad Técnica de Fiscalización).CPEUM art. 41, base V, apartado B; LGIPE arts. 190–200 ↗
Senate campaign cap per slate, 2024
Entity
Districts
Campaign
Pre-campaign
Jalisco
20
MX$44,065,248
MX$5,728,444
Mexico City
22
MX$44,065,248
MX$5,728,444
State of Mexico
40
MX$44,065,248
MX$5,728,444
Veracruz
19
MX$41,861,986
MX$5,728,444
Puebla
16
MX$35,252,199
MX$4,296,333
Guanajuato
15
MX$33,048,936
MX$4,296,333
Nuevo León
14
MX$30,845,674
MX$3,437,066
Chiapas
13
MX$28,642,411
MX$3,723,489
Michoacán
11
MX$24,235,887
MX$3,437,066
Oaxaca
10
MX$22,032,624
MX$2,864,222
Baja California
9
MX$19,829,362
MX$2,291,378
Chihuahua
9
MX$19,829,362
MX$2,577,800
Coahuila
8
MX$17,626,099
MX$2,004,955
Guerrero
8
MX$17,626,099
MX$2,577,800
Tamaulipas
8
MX$17,626,099
MX$2,577,800
Hidalgo
7
MX$15,422,837
MX$2,004,955
San Luis Potosí
7
MX$15,422,837
MX$2,004,955
Sinaloa
7
MX$15,422,837
MX$2,004,955
Sonora
7
MX$15,422,837
MX$2,004,955
Querétaro
6
MX$13,219,574
MX$1,432,111
Tabasco
6
MX$13,219,574
MX$1,718,533
Yucatán
6
MX$13,219,574
MX$1,432,111
Morelos
5
MX$11,016,312
MX$1,432,111
Durango
4
MX$8,813,050
MX$1,145,689
Quintana Roo
4
MX$8,813,050
MX$1,145,689
Zacatecas
4
MX$8,813,050
MX$1,145,689
Aguascalientes
3
MX$6,609,787
MX$859,267
Nayarit
3
MX$6,609,787
MX$859,267
Tlaxcala
3
MX$6,609,787
MX$859,267
Baja California Sur
2
MX$4,406,525
MX$572,844
Campeche
2
MX$4,406,525
MX$572,844
Colima
2
MX$4,406,525
MX$572,844
Districts: 2023 distritación (Senate caps use the districts INE counted, with the cap at 20). Pre-campaign caps are
20% of the previous campaign cap for the same office (LGIPE art. 229.1).
Fiscalización · INE Consejo General, 22 July 2024
Reported, then audited.
Parties and candidates report income and spending to INE's online system during the campaigns; INE's Technical
Oversight Unit (Unidad Técnica de Fiscalización) reviews them, and the Consejo General
approves a consolidated opinion (dictamen consolidado) and fines. Overspending the cap by 5% or
more is a ground for annulling an election; such violations are presumed decisive when first and second place are
less than 5 points apart (CPEUM art. 41 base VI).
Not verified from the resolutions
Fines on the seven national parties for 2023–24 campaign irregularities (federal and local) fell from 1,565 to 1,087 million pesos after the Council changed the criteria. Expansión Política, 25 Jul 2024 (secondary) ↗
The per-party fines are in dozens of resolution PDFs that were not extracted; press totals disagree, so no figure is
shown as fact. Dictamen: INE repository ↗
2026 · what changed for money
The formula survived.
Proposed 4 March 2026, rejected 11 March 2026
Replace the 200 list deputies: 100 for best-placed district losers and 100 by party vote in five constituencies, with seats for Mexicans abroad
Abolish the 32 national-list senators
Cut electoral spending by about 25%; reduce party broadcast time from 48 to 35 minutes a day
Regulate AI and bots in campaigns; electronic voting; restructure INE and the OPLEs
Municipal councils: one sindicatura and at most 15 regidurías (art. 115, fr. I), from each municipality's next term.
State congresses: annual budget capped at 0.70 % of the state's budget; no immediate re-election of state deputies (art. 116, fr. II).
Pay of INE, local electoral institute and electoral court officials capped at the art. 127 limit (the President's pay), with no private insurance or special pensions (art. 134).
Senate budget to fall 15 % in real terms over the four fiscal years from 2027 (transitional art. 3).
Relatives (spouse, partner, kin to the fourth degree) of a sitting municipal president or state deputy may not run for that office (arts. 115, 116).
Party funding formula (art. 41, base II): the 2027 acuerdo INE/CG483/2026 (18 Aug 2026) applies padrón × 65 % UMA, 30/70, as before.
Chamber of Deputies 300 MR + 200 RP and Senate 128 seats (arts. 52, 56).
DOF 02-06-2026: art. 41 base VI adds foreign interference as a cause of nullity; art. 35 fr. IX moves any presidential recall vote to the first Sunday of June of the fourth year, together with federal or local elections.