What Is South Dakota Payroll Tax?
South Dakota payroll tax refers primarily to the state reemployment assistance taxes and related employer fees that businesses pay directly to the South Dakota Department of Labor and Regulation based on employee wages. These taxes fund temporary unemployment benefits, employment programs, administrative services, and certain economic-development initiatives.
South Dakota payroll tax system differs from many other states because South Dakota doesn't impose an individual state income tax on employee wages. Employers therefore don't withhold South Dakota personal income tax from employee paychecks. However, covered employers generally remain responsible for Reemployment Assistance tax, an Investment Fee, and, when experience-rated, an Administrative Fee. South Dakota municipalities do not generally impose a separate local income tax on employee wages.
Most South Dakota employers are responsible for the following payroll tax requirements:
- Reemployment Assistance (RA) Tax, administered by the South Dakota Department of Labor and Regulation
- Investment Fee, paid by applicable employers with their Reemployment Assistance contributions
- Administrative Fee, paid by employers eligible for experience rating beginning with the 2026 contribution year
South Dakota Payroll Taxes at a Glance
| Payroll Tax | Paid By | Purpose |
|---|---|---|
| Reemployment Assistance Tax | Employer | Provides temporary income for eligible unemployed workers |
| Personal Income Tax | Not applicable | South Dakota doesn't impose an individual state income tax on employee wages |
| Investment and Administrative Fees | Employer | Supports economic-development projects and administration of state employment programs |
Understanding who pays each tax and recognizing that South Dakota lack of individual income tax doesn't eliminate employer payroll obligations helps businesses avoid the common mistake of assuming that no state employment taxes apply.
South Dakota Employer Payroll Tax Responsibilities
Every employer with workers in South Dakota has payroll tax responsibilities beyond simply issuing paychecks. Depending on your business, you'll generally need to:
- Register your business with the South Dakota Department of Labor and Regulation's Reemployment Assistance Tax Unit.
- Obtain a South Dakota Reemployment Assistance employer account number and assigned tax rate.
- Determine whether the business is classified as construction or non-construction for new-employer rate purposes.
- Pay employer Reemployment Assistance contributions using the rate assigned to the account.
- Calculate and pay the applicable Investment Fee.
- Calculate and pay the Administrative Fee when the employer is eligible for experience rating.
- File quarterly contribution and employee wage reports, including zero-wage reports when no wages were paid.
- Report all wages paid during the quarter, even after an employee exceeds the annual taxable wage base.
- Report every new hire and qualifying rehire to the South Dakota New Hire Reporting Center.
- Display the required Reemployment Assistance employee notification poster at the workplace.
- Maintain payroll records for state compliance.
Many businesses use payroll software with built-in South Dakota Reemployment Assistance calculations, since employers must separately account for the base contribution rate, Investment Fee, Administrative Fee, taxable wage base, and any applicable trust-fund surcharge.
Types of South Dakota Payroll Taxes
Reemployment Assistance Tax
Reemployment Assistance Tax is an employer-funded payroll tax administered by the South Dakota Department of Labor and Regulation that provides temporary financial assistance to eligible workers who lose their jobs through no fault of their own.
Employers pay this tax directly it is never deducted from employee paychecks.
South Dakota assigns new employers a rate based partly on whether the business is classified in the construction industry. After an employer develops sufficient reporting and contribution history, it may receive an experience-based rate determined by its reserve ratio, taxable payroll, benefit charges, and the condition of the state's Reemployment Assistance Trust Fund.
Key Facts
- Paid entirely by employers South Dakota has no employee Reemployment Assistance contribution
- Calculated on the first $15,000 of each employee's wages for 2026
- First-year non-construction employers pay a 1.20% RA tax rate plus a 0.55% Investment Fee, for a combined 1.75% rate
- First-year construction employers pay a 6.00% RA tax rate plus a 0.55% Investment Fee, for a combined 6.55% rate
- Qualifying non-construction employers in years two and three pay 1.00% plus the 0.55% Investment Fee, for a combined 1.55%
- Qualifying construction employers in years two and three pay 3.00% plus the 0.55% Investment Fee, for a combined 3.55%
- Experienced-employer base contribution rates can range from 0% to 9.5%, before applicable fees
- Most South Dakota employers receive a federal FUTA tax credit of up to 5.4% for timely state payments, bringing the effective FUTA rate down to about 0.6%
- Must be reported quarterly through South Dakota online wage-reporting system
South Dakota Personal Income Tax Withholding
South Dakota doesn't impose an individual state income tax on wages. As a result, employers don't calculate or withhold South Dakota personal income tax from employee paychecks and don't file a South Dakota individual income tax withholding return.
Employers are responsible for:
- Not withholding South Dakota individual income tax from employee wages
- Continuing to withhold applicable federal income tax, Social Security tax, and Medicare tax
- Reviewing whether another state's income tax withholding applies when an employee performs services outside South Dakota
- Tracking the physical work location of remote and multistate employees
- Separating South Dakota employer-funded RA tax and fees from employee payroll deductions
- Maintaining wage records required for quarterly Reemployment Assistance reporting
Because South Dakota doesn't impose individual income tax, employees don't complete a South Dakota withholding allowance certificate comparable to state W-4 forms used elsewhere. Employers must still collect federal Form W-4 and evaluate other-state withholding requirements for employees who perform services across state lines.
Investment and Administrative Fees
South Dakota employers may pay an Investment Fee and an Administrative Fee in addition to their regular Reemployment Assistance contribution. These employer-funded amounts support economic-development initiatives and the administration of employment-related programs.
Key rules employers need to know:
- New employers generally pay a 0.55% Investment Fee in addition to their base Reemployment Assistance tax rate
- Experience-rated employers receive an Investment Fee rate based on their reserve ratio
- Experience-rated Investment Fee rates can range from 0% to 0.53%
- For 2026 and later years, employers eligible for experience rating generally pay a 0.08% Administrative Fee
- The Administrative Fee doesn't apply to new employers that aren't yet eligible for experience rating
- The Investment Fee and Administrative Fee are paid entirely by employers and cannot be deducted from employee wages
- The fees generally apply to the same $15,000 taxable wage base used for Reemployment Assistance tax
- A separate surcharge can become effective if the Reemployment Assistance Trust Fund balance falls below the threshold established by state law
Because South Dakota assigned base contribution rate may not represent the employer's complete liability, businesses should include the applicable Investment Fee, Administrative Fee, and any announced surcharge when configuring payroll.
Which Payroll Taxes Are Paid by Employers vs Employees?
| Tax | Employer Pays | Employee Pays |
|---|---|---|
| Reemployment Assistance Tax | YES | NO |
| Personal Income Tax | Not applicable | No South Dakota individual income tax withholding |
| Investment and Administrative Fees | YES | NO |
South Dakota places the Reemployment Assistance tax, Investment Fee, and Administrative Fee burdens entirely on employers. Employees don't pay South Dakota individual income tax, and employers must not deduct state RA taxes or fees from employee wages.
South Dakota Payroll Tax Rates for Employers
Understanding current South Dakota payroll tax rates is essential for calculating payroll accurately. Because experienced-employer rates and Investment Fees are assigned individually, employers should review their annual Notice of Rate Determination rather than relying only on the general statewide ranges.
South Dakota Payroll Tax Rates at a Glance
| Payroll Tax | Who Pays | General Rate | Taxable Wage Base |
|---|---|---|---|
| Reemployment Assistance Tax | Employer | First-year non-construction employers: 1.20%. First-year construction employers: 6.00%. Experienced-employer base rates: 0%–9.5% | $15,000 for 2026 |
| Personal Income Tax | Not applicable | South Dakota has no individual state income tax | Not applicable |
| Investment and Administrative Fees | Employer | New-employer Investment Fee: 0.55%. Experience-rated Investment Fee: 0%–0.53%. Administrative Fee: 0.08% for experience-rated employers | Generally follows the $15,000 RA taxable wage base |
According to the South Dakota Department of Labor and Regulation's official 2026 guidance, the Reemployment Assistance taxable wage base remains $15,000. First-year non-construction employers generally pay a combined 1.75% after the Investment Fee, while first-year construction employers generally pay a combined 6.55%.
Instead of relying on one general statewide estimate, employers should review their annual rate notice, confirm whether the business is construction or non-construction, and include all assigned contribution, Investment Fee, Administrative Fee, and surcharge components.
Understanding Taxable Wages
Not every South Dakota payroll obligation applies to compensation in the same way. Depending on the payment involved, reportable wages may include:
- Hourly wages
- Salaries
- Bonuses
- Overtime pay
- Commissions
- Certain taxable fringe benefits
Reemployment Assistance tax and applicable employer fees generally apply only to the first $15,000 of each employee's annual wages. Employers must still report all wages paid during each quarter, including wages above the taxable wage base, so that taxable and excess wages can be calculated correctly.
South Dakota Payroll Tax Filing Deadlines
Meeting payroll tax deadlines is just as important as calculating taxes correctly. Late filings or payments can lead to penalties and interest charges.
Reemployment Assistance Quarterly Wage Report
| Reporting Quarter | Filing Deadline |
|---|---|
| January – March | April 30 |
| April – June | July 31 |
| July – September | October 31 |
| October – December | January 31 |
State Income Tax Withholding
South Dakota doesn't impose an individual state income tax on employee wages, so employers don't file periodic South Dakota personal income tax withholding returns or remit state income tax withheld from paychecks.
Investment and Administrative Fees
The applicable Investment Fee and Administrative Fee are generally calculated, reported, and paid with the employer's quarterly Reemployment Assistance report. Employers must use the complete contribution and fee rates assigned to their account when calculating the quarterly amount due.
If a deadline falls on a weekend or legal holiday, employers should follow the adjusted filing guidance issued by the Department of Labor and Regulation. Zero-wage reports remain due even when the employer had no payroll during the quarter.
How to Register for South Dakota Payroll Taxes
Before paying employees, businesses typically need to register with the South Dakota Department of Labor and Regulation's Reemployment Assistance Tax Unit.
State registration: Newly established businesses register online for a South Dakota Reemployment Assistance tax account. Businesses that acquire an existing liable company or change their ownership structure must generally register the change within 30 days.
Local registration: South Dakota municipalities do not generally impose a local income tax on employee wages, so employers normally don't need to register with local revenue offices for payroll income tax withholding. Separate sales-tax licenses, contractor's excise-tax accounts, municipal licenses, or other business registrations may still apply.
During registration, you'll generally need information such as:
- Legal business name
- Federal Employer Identification Number (EIN)
- Business entity type
- Business address and all South Dakota work locations
- Owner or responsible party information
- Date employees first performed services in South Dakota
- Estimated payroll information
How to File South Dakota Payroll Taxes
Filing payroll taxes in South Dakota primarily involves managing Reemployment Assistance contributions, employer fees, and quarterly wage reporting. A typical filing process includes:
Step 1: Calculate Employee Wages
Determine each employee's gross wages, including regular pay, overtime, bonuses, commissions, tips, and other reportable compensation.
Step 2: Determine Applicable Local Jurisdictions
Confirm where each employee physically performs services and whether employment is reportable to South Dakota. South Dakota doesn't generally impose local wage withholding, but the work location determines whether South Dakota Reemployment Assistance rules apply.
Step 3: Calculate Payroll Taxes
Determine the employer's RA contribution using the current assigned rate, calculate the applicable Investment Fee and Administrative Fee, and apply the combined rate to taxable wages up to the $15,000 annual wage base.
Step 4: Withhold Employee Taxes
Don't deduct South Dakota individual income tax, Reemployment Assistance tax, Investment Fees, Administrative Fees, or applicable surcharges from employee paychecks. Continue withholding all required federal payroll taxes.
Step 5: Pay Employer Contributions and Remit Withholding
Pay employer Reemployment Assistance contributions and applicable fees through South Dakota's approved employer reporting and payment system.
Step 6: File Payroll Tax Returns
Submit quarterly contribution and wage reports showing total wages, taxable wages, excess wages, employee wage detail, contribution amounts, and applicable employer fees. File a report even when no wages were paid.
Step 7: Maintain Payroll Records
Keep detailed payroll records, employee wage information, annual rate notices, construction-industry classification records, filed reports, and payment confirmations in case of future audits or compliance reviews.
Following a consistent payroll process helps reduce mistakes and makes year-end reporting significantly easier.
Frequently Asked Questions
Who is required to pay South Dakota payroll taxes?
Most businesses that hire employees performing services in South Dakota are required to register with the South Dakota Department of Labor and Regulation. Their responsibilities may include paying employer Reemployment Assistance contributions and fees, filing quarterly wage reports, reporting new hires, and maintaining payroll records.
What payroll taxes are employers responsible for in South Dakota?
South Dakota employers generally have responsibilities related to Reemployment Assistance tax, the Investment Fee, and, for experience-rated employers, the Administrative Fee. South Dakota doesn't impose individual state income tax withholding on employee wages.
How often do employers file South Dakota payroll tax returns?
Reemployment Assistance contribution and wage reports are generally filed quarterly. Reports are due April 30, July 31, October 31, and January 31, including quarters in which the employer paid no wages.
How do I register for South Dakota payroll taxes?
Employers register for a Reemployment Assistance tax account through the South Dakota Department of Labor and Regulation's online employer registration system. Ownership or entity changes generally require a new or updated registration within 30 days.
What happens if payroll taxes are filed late?
Late reports and payments may result in separate monthly penalties and interest. South Dakota may assess a $25 monthly late-filing penalty, a $25 monthly late-payment penalty, and interest on unpaid contributions. Filing accurately and on time also helps preserve the employer's full federal FUTA credit.
Does South Dakota payroll tax apply to remote employees?
Yes. An employee who physically performs services from a South Dakota location may create South Dakota Reemployment Assistance obligations even when the employer is located in another state. South Dakota individual income tax withholding still doesn't apply because the state doesn't impose an individual income tax.
Are South Dakota payroll tax rates the same every year?
Not always. South Dakota employer-specific contribution rate, reserve ratio, Investment Fee, Administrative Fee, taxable wage base, and any trust-fund surcharge can change. Employers should review their annual rate notice and current Department of Labor and Regulation guidance before processing payroll each year.
Can payroll software calculate South Dakota payroll taxes automatically?
Many payroll platforms automatically calculate South Dakota Reemployment Assistance contributions, Investment Fees, Administrative Fees, and taxable or excess wages, and help employers meet quarterly filing deadlines. Employers are still responsible for ensuring employee work locations, construction classification, assigned rates, and year-to-date wage records are accurate and up to date.
Disclaimer
This article is for general informational purposes only and doesn't constitute legal, tax, or accounting advice. Payroll tax rates, taxable wage bases, Investment Fees, Administrative Fees, surcharge rules, filing requirements, and payment schedules can change. Consult a qualified CPA or tax professional for guidance specific to your business.
