Tax rate used in calculating South Carolina state tax for year 2021

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Withholding Formula (South Carolina Effective 2021)

1. Subtract the biweekly Thrift Savings Plan contribution from the gross biweekly wages.
   
   
2. Multiply the adjusted gross biweekly wages by 26 to obtain the annual wages.
   
   
3. 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.



4. 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

5. 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




6. Divide the annual South Carolina tax withholding by 26 to obtain the biweekly South Carolina tax withholding.