The information on
your return is most likely correct.
According to "INCREASE IN TWO WAGE EARNER CREDIT"
on page 3 of 2018
SC1040 INDIVIDUAL INCOME TAX FORM AND INSTRUCTIONS,
The maximum credit available for the Two Wage Earner
Credit (claimed by a married couple filing jointly when both taxpayers have
earned income taxed to South Carolina) has increased. For 2018, the credit is
computed at 0.7% of the lesser of $33,333 or the SC qualified earned income of
the taxpayer with the lower qualified income for the taxable year.
