Rounding

To figure the income tax to withhold, you may reduce the last digit of the wages to zero, or figure the wages to the nearest dollar. You may also round the tax for the pay period to the nearest dollar. If rounding is used, it must be used consistently. Withheld tax amounts should be rounded to the nearest whole dollar by dropping amounts under 50 cents and increasing amounts from 50 to 99 cents to the next dollar. For example, $2.30 becomes $2 and $2.50 becomes $3.