The 2026 midterm election was held on November 3. So when does the new Congress take office? Under the 20th Amendment, the terms of current members end — and the new 120th Congress begins — at noon on January 3, 2027, unless Congress passes a law setting a different day. Here’s the full timeline and what happens in between.
When does the new Congress take office? Key dates
| Date | What happens |
|---|---|
| Nov 3, 2026 | Midterm Election Day: all 435 House seats and 35 Senate seats on the ballot. |
| November | Vote counting, recounts in close races and new-member orientation in Washington. |
| Nov–Dec 2026 | States certify results; the outgoing Congress holds its “lame-duck” session. |
| Jan 3, 2027 (noon) | Terms of the 119th Congress end; the 120th Congress convenes. |
| First day | The House elects a Speaker and members are sworn in; new senators take the oath in the Senate. |
What is the lame-duck session?
Between the election and January 3, the outgoing (119th) Congress can still pass laws. This period is called the lame-duck session. Members who lost or retired still vote until their terms end. Government funding deadlines and must-pass bills often come up during this time.
How the new House is sworn in
- The Clerk of the House calls the new House to order.
- Members-elect vote for Speaker; a candidate needs a majority of those voting for a named person.
- The new Speaker is sworn in, then administers the oath to all members at once.
- The House adopts its rules for the new Congress.
How new senators are sworn in
About one-third of the Senate is elected in each regular election, so the Senate is a “continuing body.” Newly elected and re-elected senators are sworn in by the vice president, usually in small groups escorted by their home-state colleagues.
When do new governors take office?
Thirty-six governorships were on the 2026 ballot. Inauguration dates are set by each state, and most new governors take office in January 2027 — though the exact day varies.
What about special elections and vacancies?
Winners of special Senate elections (such as the 2026 races in Florida and Ohio) may take office as soon as their results are certified, rather than waiting until January. Vacancies that occur later are filled under each state’s rules.
Why January 3?
Before the 20th Amendment was ratified in 1933, new Congresses often didn’t meet until December of the following year — more than a year after the election. The amendment shortened the gap and moved the start date to January 3.
So, when does the new Congress take office? At noon on January 3, 2027. Follow the results and timeline as states certify their votes, and bookmark this guide — “when does the new Congress take office” is answered on January 3.
More election coverage: midterm election results 2026, when do polls close and Election Day 2026.
FAQ
When does the new Congress start in 2027?
At noon on January 3, 2027, unless Congress sets a different date by law.
Which Congress begins in 2027?
The 120th Congress, serving from 2027 to 2029.
Do newly elected members vote before January?
No. Until January 3, the outgoing Congress remains in office and handles any lame-duck business.
