How to change your party affiliation
You can change your party affiliation by filing a form with your state or county election office, usually online or by mail. The process takes between a few days and several weeks depending on where you live and whether you're changing before or after an election. Most states let you change affiliation at any time, though a few have registration deadlines tied to primary elections.
The exact steps depend on your state. Some states use the term "party affiliation," others use "party registration" or "party preference." A few states don't register voters by party at all. The easiest way to find your state's specific form and rules is to search "[your state] change party affiliation" or go directly to your county clerk's or board of elections website.
Key Takeaways
- Most states let you change party affiliation online through your election office website, or by mailing a form to your county clerk or board of elections.
- Some states have registration deadlines before primary elections — usually 15 to 30 days before — so changing after that deadline means you cannot vote in that primary.
- A few states, including California and Washington, use "party preference" instead of "party affiliation" and let you change it on Election Day itself.
- Your change takes effect immediately in some states and within days or weeks in others, depending on how quickly your county processes the form.
- If you're unsure whether your state registers voters by party, your county election office can confirm your current registration status and tell you what options exist.
Where to file your change
Contact your county clerk's office or board of elections — not your state office. County election offices maintain voter registration records and process changes. You can find the correct office by searching "[your county] clerk" or "[your county] board of elections" online, or by calling your state election office for a referral.
Many counties now let you change affiliation online through a voter registration portal. Others require you to print a form, sign it, and mail it to the address listed on the form. A few still accept changes only in person at the election office. Check your county's website first to see which methods they accept, because online is usually fastest.
If you cannot find your county's website or are unsure which county to contact, call your state election office. They can tell you which county handles your address and provide the correct contact information.
Primary election deadlines and what they mean
Most states have a registration deadline before primary elections. If you change your affiliation after that deadline, your change will take effect, but you cannot vote in that primary election under your new party. The deadline is usually 15 to 30 days before the primary, though it varies by state.
For example, if your state's primary is in June and the deadline is 30 days before, you must change affiliation by mid-May to vote in that June primary. If you change affiliation on June 1st, your new affiliation is recorded, but you cannot vote in the June primary. You can vote in the next primary election under your new affiliation.
Check your state or county election website for the exact deadline in your area. If you want to vote in an upcoming primary, change your affiliation before the deadline. If the deadline has passed, your change still goes through — it just takes effect after that primary.
States that don't register by party
A handful of states — including Alaska, Hawaii, Iowa, North Dakota, and Wyoming — do not register voters by party affiliation. In these states, you do not have a party on file with the election office. Instead, you declare a party preference when you vote in a primary election, if you choose to vote in one at all.
If you live in one of these states and want to participate in a party's primary, you typically declare your preference at the polling place on primary day or request a specific party's ballot. There is no form to file and no registration to change. Your choice at the primary is separate from any party membership you may hold outside of voting.
How long the change takes
Processing time varies widely. Some states update your registration within one business day of receiving your form online. Others take one to two weeks. A few take longer, especially if you mail a paper form and the county is processing a high volume of changes.
If you change affiliation online through your county's portal, you usually see confirmation immediately, though the change may not appear in the official voter file for several days. If you mail a form, allow at least two weeks for delivery and processing. If you change affiliation in person at the election office, the change is usually recorded the same day.
If you need to know your current registration status or whether your change has been processed, contact your county election office. They can look up your record and tell you what party affiliation is on file.
Changing affiliation before moving to another state
If you are moving to another state, you do not need to change your affiliation in your current state before you leave. Once you register to vote in your new state, your new registration will replace the old one automatically. Your old state's election office will eventually mark your record as moved.
When you register in your new state, you will be asked about party affiliation (if that state registers by party). You can choose the same party, a different party, or no party affiliation, depending on what your new state offers. Register in your new state as soon as you have a new address and proof of residency, because you cannot vote in your new location until you are registered there.
What happens if you change affiliation close to an election
If you change affiliation a few days before a general election, your change will be recorded, but it may not appear in the poll book at your polling place on Election Day. Poll books are printed days or weeks in advance. If your new affiliation is not in the poll book, you can still vote — you will simply vote under your old affiliation, or the poll worker will note the discrepancy and let you vote anyway.
To avoid confusion, change your affiliation well before Election Day if possible. If you must change close to an election, contact your county election office to confirm your change was processed and ask whether it will appear in the poll book. Some counties can update poll books before Election Day; others cannot.
Frequently Asked Questions
Can I change my party affiliation online?
Many states and counties offer online registration changes through their election office website. Search "[your county] voter registration" to see if your county has an online portal. If not, you can mail a form or change affiliation in person at the election office. Online is usually fastest, taking one to three business days.
Do I need to change my party affiliation to vote in a general election?
No. Party affiliation only affects which primary ballot you receive. In general elections, all registered voters can vote for any candidate regardless of party affiliation. You do not need to change affiliation to vote for a candidate from a different party in November.
What if I want to vote in a primary but the deadline has passed?
You cannot vote in that primary if you miss the deadline. Your change will still be processed, but it takes effect after the primary. You can vote in the next primary election under your new affiliation. Some states allow same-day registration or affiliation changes for primaries — check your state's rules.
Will changing my party affiliation affect my voter registration or voting rights?
No. Changing affiliation does not affect your ability to vote, your voter registration status, or any other rights. It only changes which party primary ballot you receive, if you choose to vote in a primary. Your registration address, name, and voting history remain unchanged.
How do I know if my change was processed?
Contact your county election office and ask them to look up your current registration. They can tell you what party affiliation is on file and when it was last updated. You can also check online through your county's voter registration portal if one exists.