Texas voters who need to register or update an address for the December 12 local runoff election face a statutory deadline on Thursday, November 12. The date comes as local officials and candidates continue to settle which contests will go forward, including a Denton City Council race decided by a one-vote margin and an Austin school-board runoff cleared by a candidate’s withdrawal.
The deadline does not apply to every election in Texas. It covers runoff elections that result from the November 3 uniform election held by cities, school districts, water districts and other local political subdivisions. The state’s December 12 runoff calendar also contains separate notice, ballot, early-voting and canvassing requirements. As of November 12, some local jurisdictions may still be completing the procedures needed to order a particular runoff.
Facts: What the state deadline means
The Texas Secretary of State has designated Saturday, December 12, 2026, as the uniform runoff date for local political subdivisions whose November 3 elections produced a runoff. The designation is made under Section 2.025 of the Texas Election Code. The state’s post-election advisory says the December 12 date is for local political subdivisions, not the state, district or county officers elected in the general election. Texas Secretary of State, Election Advisory No. 2026-31
Thursday, November 12 is the 30th day before the runoff. It is the last day to register to vote or make a change of address effective for the December 12 election, according to the Secretary of State’s runoff calendar. A person who submits an address change after the deadline may still have limited options, depending on where the person moved. The calendar says a voter who remains in the same county and local political subdivision may be able to return to the previous precinct under Texas’s fail-safe rules. A voter who moved to a different county may be eligible for a limited ballot during early voting, but only under the conditions described in state law. Texas December 12 Runoff Election Law Calendar
The calendar also begins the period in which certain runoff notices may be published. A notice cannot be published before a local authority orders the runoff. The state recommends that jurisdictions act quickly because the interval between the November 3 election and December 12 runoff is short. Notice generally must be posted on the political subdivision’s website by Friday, November 27, the 15th day before the election, although the applicable notice method can vary by jurisdiction. Texas December 12 Runoff Election Law Calendar
The state’s VoteTexas guidance says an application for a ballot by mail must be received by the early voting clerk no later than the 11th day before election day, by the close of regular business or noon, whichever is later. Texas limits eligibility to vote by mail mainly to voters who are 65 or older, disabled, out of the county during the voting period, or confined in jail but otherwise eligible. Applications must go to the early voting clerk for the relevant election. VoteTexas.gov, Voting by Mail
Early voting for the December 12 runoff is scheduled to run from November 30 through December 8 in the Denton contest reported by KERA. Local schedules can include additional details set by the jurisdiction. KERA, “One vote breaks a tie, sending Kris Cox to the Dec. 12 runoff”
Facts: Close margins and a withdrawal add local stakes
In Denton City Council District 1, Kris Cox advanced after receiving 1,551 votes, or 20.75%, compared with Michael Herron’s 1,550 votes, or 20.74%, according to unofficial results cited by KERA from the city of Denton. Cox and Herron had originally tied at 1,548 votes in unofficial election-night results. The Denton City Charter requires candidates who tie to cast lots to determine who advances to a runoff. The later update put Cox one vote ahead. Cox will face Sunny Busby, who received 42.76% of the November 3 vote. KERA
The Denton figures are not presented here as a statewide certified result. KERA described them as unofficial, and the state’s post-election rules require local authorities to complete canvassing and related ballot procedures before final action. The example does, however, show why the registration deadline matters even in a local election: a contest decided at the margin of one vote can determine which candidates remain on the December ballot.
In Austin Independent School District’s District 9 race, candidate Cynthia Soliz withdrew from the December 12 runoff on November 9, according to KUT. Her withdrawal leaves Pamela Mathai as the remaining candidate, but the report described Mathai as expected to win rather than treating the seat as already certified. Soliz said the cost of another election was difficult to justify while the district faces major budget reductions. Austin ISD told Austin Current that it had spent between $208,500 and $362,000 on individual runoff elections over the previous 12 years. KUT, “AISD candidate Cynthia Soliz drops out of runoff”
Analysis: Why the deadline matters beyond one day
The November 12 deadline is an administrative cutoff, not a final tally or a guarantee that every possible runoff has the same ballot. Local governing bodies still must order elections, publish notices, prepare polling locations and complete the required canvass. The Secretary of State’s calendar repeatedly warns jurisdictions to move promptly because only 39 days separate November 3 from December 12.
That compressed schedule creates a practical distinction between being eligible to vote and knowing exactly what will appear on a ballot. Voters may need to confirm the specific local authority conducting the runoff, the candidates, the polling location and whether a race remains contested after a withdrawal. The Denton and Austin examples illustrate different forms of uncertainty: one involves a very close advancement decision, while the other involves a candidate leaving the runoff before voting begins.
The safest reading of the state guidance is procedural. A voter who is already registered and has not changed address generally does not need to register again, but should verify the registration record and the local election information. A person who has moved should not assume that an address update after November 12 will work everywhere in the same way. The applicable fail-safe or limited-ballot rules depend on the county and the local election involved.
As of November 12, the verified statewide development is the registration and address-change deadline for the December 12 local runoff cycle. The final candidate lists, local notices and certified outcomes remain matters for the relevant jurisdictions and their election authorities.
