- 9 LeGrand Blvd, Greenville, SC
- Monday to Friday, 8:30 AM to 5:00 PM
Home  / Free Employer Tools  / South Carolina Compliance Calendar
South Carolina Compliance Calendar
month by month.
State filings and rules for South Carolina employers, alongside the federal calendar. Dates move to the next business day when they fall on a weekend or holiday.
South Carolina employers
State deadlines
Reviewed October 2026
01
Find your month
Each card lists what is due to the state that month.
02
Read the state rules
Hiring, final pay and continuation rules are below.
03
Use both calendars
Federal deadlines apply too. See the federal calendar.
Q1
Jan 31
W‑2s and 1099s to the South Carolina Department of Revenue.
Jan 31
Fourth-quarter withholding and annual reconciliation, Form WH‑1606.
Jan 31
Fourth-quarter unemployment wage report to SC DEW.
January
Watch for your new unemployment tax rate notice from SC DEW.
Q1
Feb 1
Post the OSHA 300A injury summary through April 30.
Employers required to keep OSHA logs
Q1
No state filing deadlines. A good time to check that your required workplace posters are current.
Q2
Apr 30
First-quarter withholding return, Form WH‑1605.
Apr 30
First-quarter unemployment wage report to SC DEW.
Apr 30
OSHA 300A posting period ends.
Employers required to keep OSHA logs
Q2
No state filing deadlines.
Q2
No state filing deadlines. A good time to review your new hire paperwork and E-Verify process.
Q3
Jul 31
Second-quarter withholding return, Form WH‑1605.
Jul 31
Second-quarter unemployment wage report to SC DEW.
Q3
No state filing deadlines.
Q3
No state filing deadlines. Check the federal calendar for Summary Annual Reports.
Q4
Oct 31
Third-quarter withholding return, Form WH‑1605.
Oct 31
Third-quarter unemployment wage report to SC DEW.
Q4
No state filing deadlines. Open enrollment season for January plans.
Q4
No state filing deadlines. Get W‑2 information ready for January.
South Carolina Rules
with an event.
These are not tied to a month. They apply when you hire, change pay or someone leaves.
Event
From the first day
E-Verify
Within three business days. Required for every South Carolina employer
New hire report to SC DSS
Within 20 days of the hire date
Written wage notice
Pay rate, hours, payday and deductions. Employers with 5 or more employees
Good to know
Posting the same terms where employees can see them also meets the wage notice rule.
Event
Hours, pay or deductions
Seven days' written notice
Before changes to hours, pay rate, payday or deductions
Raises
No advance notice needed
Good to know
This rule applies to employers with 5 or more employees.
Event
The last day
Final pay
Within 48 hours, or by the next regular payday within 30 days
Unused paid time off
Paid out when your written policy says so
State continuation
Insured plans with fewer than 20 employees, about six months
Good to know
Late final pay can cost up to three times the unpaid wages.
Ongoing
Insurance and posters
Workers' compensation
4 or more employees and at least $3,000 in payroll the prior year
Unemployment insurance
Register with SC DEW once you meet the wage or employee test
Workplace posters
State and federal posters, based on your size
Good to know
South Carolina has no state minimum wage, so the federal rate applies.
General information only, not legal or tax advice. State rules change, and we confirm what applies to your company.
More Free Tools
try another tool.
Calendar
Federal benefits and HR deadlines, month by month.
Checklist
Every step from four months out to the week after.
Self-assessment
Eight questions and a score out of 100 for your plan.
Calculator
Your three-year trend and where savings may be.
Your Next Step
tracked together.
We keep both calendars with our South Carolina clients and send a reminder before each deadline.
Prefer to call?
Federal and state deadlines
In one schedule built for your company.
Reminders ahead of time
Before each filing or notice is due.
HR support through Mineral
Answers on state rules when questions come up.
Because your employees are your greatest asset.
Medicare disclaimer: We do not offer every plan available in your area. Currently we represent [X] organizations which offer [X] products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Assistance Program (SHIP) to get information on all of your options. Group Benefit Strategies is not connected with or endorsed by the U.S. government or the federal Medicare program.
© 2026 Group Benefit Strategies, LLC. All rights reserved.
Privacy Policy · Site by Agent Webwerx
