South Carolina
Five percent, a hard cap, and no more fusion
South Carolina keeps a genuine petition route to the general election ballot — 5 percent of registered voters, capped at 10,000 signatures no matter how large the district. What changed is the other half of the state’s reputation: fusion voting was abolished by 2022 Act No. 150, effective January 1, 2023. Campaigns that remember South Carolina as a cross-endorsement state are working from an out-of-date map.
Signature Requirements
| Office / Measure | Requirement |
|---|---|
| Any petition candidate — general rule | 5% of the qualified registered electors in the geographic area of the office, capped at 10,000 signatures |
| Statewide office (Governor, U.S. Senate) | Effectively the 10,000 cap, since 5% of statewide registration far exceeds it |
| U.S. House | 5% of the district’s registered voters, capped at 10,000 |
| State Senate and State House | 5% of the district’s registered voters — the cap rarely binds, so these are genuine percentage drives |
| County and municipal office | 5% of registered voters in the county, municipality or district |
| New political party certification | 10,000 or more registered electors, plus county and state organizational conventions |
| Party primary candidates — fee route | 1% of the annual salary multiplied by the years in the term, or $100, whichever is greater; no petition alternative |
| Petition verification standard | First 500 signatures fully checked; at least one in every ten thereafter, with projection |
Filing window structure
Party candidates file a statement of intention of candidacy and party pledge between noon March 16 and noon March 30. Petition candidates run on a separate track: the petition goes to the appropriate election official by noon on July 15, or the following Monday if that falls on a weekend, and county boards check and certify by mid-August. Petition candidates also certify their qualifications on a State Election Commission form and file a Statement of Economic Interests.
Form requirements
Petitions must be on original bond paper, 8.5 by 14 inches, in the prescribed three-column format: signature with printed name, residence address, and precinct. Signatures and pages are numbered consecutively. No page may mix registered voters from different counties, because verification is county by county. The Commission accepts touchscreen-digitized signatures with verification documentation, but flags the risk that a finger-drawn signature will not match the one on file.
The one-in-ten verification method
For petitions of 500 signatures or fewer, every signature is checked. Above 500, the county board checks all of the first 500 and then at least one of every ten thereafter, projecting the validity rate across the remainder. If the projection meets the requirement the petition is certified; if it falls short, the board checks every signature above 500, or as many as needed to find the required number. That second pass is a partial safety net, not a cure period — no signatures may be added after filing.
What does and does not invalidate a signature
South Carolina is unusually forgiving on paperwork detail: a signature may not be rejected merely because the address, registration number or precinct is missing or wrong, so long as the signature itself is valid. Rejection is limited to illegible signatures that cannot be matched, missing signatures, signatures that do not match the voter’s record, and deleted registrations. There is no statutory circulator affidavit or notarization requirement.
Fusion voting is gone, and the sore-loser rule bites
2022 Act No. 150 amended Section 7-11-10 so that a candidate must not be nominated by more than one political party for a single office in the same election, effective January 1, 2023. Minor parties built on cross-endorsing major-party nominees must now run their own candidates or petition. Separately, a candidate defeated in a party primary may not campaign as a write-in for that election.
Ballot Measures in South Carolina
South Carolina has no statewide citizen initiative or referendum. Constitutional amendments require a two-thirds vote of each house, ratification at a general election, and a further legislative ratification vote; statutes cannot be enacted or repealed by petition. Bills to create an initiative process, such as S. 95 in the 2025–26 session, are introduced regularly and have not passed. The petition work available is therefore candidate access plus local questions: municipal incorporation and annexation petitions, referendums on forms of county government, local option questions, and school and bond questions, each under title-specific statutes rather than a general initiative law. Because the 5 percent requirement reaches every office from Governor down to town council, the state offers steady small-district work even without a measure pipeline.
What Trips Campaigns Up in South Carolina
We've Worked This Ground
South Carolina Ballot Access FAQ
How many signatures does a statewide petition candidate need?
In practice, 10,000. Five percent of statewide registration is far above the statutory cap, so the cap governs every statewide and most congressional races.
When exactly is the petition due?
Noon on July 15 of the election year, or the following Monday if that falls on a weekend; county boards then certify by mid-August. Special elections run on a compressed schedule of 60 days out for submission and 45 days out for certification.
Is a circulator affidavit or notary required?
No. The statutes impose no circulator affidavit, notarization, residency or registration requirement. The controlling rules are the prescribed page format and the one-county-per-page rule.
Can a candidate still be nominated by two parties?
No. Act No. 150 of 2022 ended fusion nominations effective January 1, 2023. A candidate may be nominated by only one political party for a single office in the same election.
Running a Campaign in This State?
Signature requirements are the easy part. Hitting them on deadline is the job.