How to Calculate 2021 South Carolina State Income Tax by Using State Income Tax Table
1. Find your income exemptions
2. Find your pretax deductions, including 401K, flexible account contributions ...
3. Find your gross income
4. Check the 2021 South Carolina state tax rate and the rules to calculate state income tax
5. Calculate your state income tax step by step
6. If you want to simplify payroll tax calculations, you can download
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Tax rate used in calculating South Carolina state tax for year 2021
State Abbreviation:
SC
State Tax Withholding
State Code:
45
Acceptable Exemption
Form:
WH 1602
Basis For Withholding:
State Exemptions
Acceptable Exemption
Data:
0 / Number of Exemptions
TSP Deferred:
Yes
Special Coding:
Determine the Total Number
Of Allowances field as follows:
First
Position - Enter 0 (zero).
Second
and Third Positions - Enter the number of exemptions claimed.
Additional Information:
None
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Withholding Formula (South Carolina Effective 2021)
Subtract the biweekly Thrift Savings Plan contribution from the gross
biweekly wages.
Multiply the adjusted gross biweekly wages by 26 to obtain the annual
wages.
Determine the standard deduction by applying the following guideline
and subtract this amount from the annual wages.
If
The Number of Exemptions
Claimed1 Is:
Subtract This
Amount2:
1 or more
10% of annual wages or
$4,200
1 Use
annual wages when no exemptions are claimed. 2 Use
the lesser amount.
Determine the exemption allowance by applying
the following guideline and subtract this amount from the result of
step 3 to compute the taxable income.
Exemption Allowance = $2,670 x Number of Exemptions
Apply the taxable income computed in step
4 to the following table to obtain the South Carolina tax withholding.
Tax Withholding Table
If the Amount of
Taxable Income Is:
The Amount of South
Carolina
Tax Withholding Should Be:
Over:
But Not
Over:
Of Excess
Over:
$ 0
$ 2,800
$ 0
plus
0.5%
$ 0
2,800
5,610
14.00
plus
3%
2,800
5,610
8,410
98.30
plus
4%
5,610
8,410
11,220
210.30
plus
5%
8,410
11,220
14,030
350.80
plus
6%
11,220
14,030
and over
519.40
plus
7%
14,030
Divide the annual
South Carolina tax withholding by 26 to obtain the biweekly South Carolina
tax withholding.
More Payroll Information for South Carolina Small Business
in house payroll tax solution for South Carolina small businesses here.
