An Act amending "The Local Tax Enabling Act," approved December 31, 1965 (P. L. 1257, No. 511), requiring the filing of a bond upon appeal; abolishing the mercantile tax; further providing for the business privilege tax, for the rate and collection of the earned income tax and for the rate of interest on unpaid taxes; requiring cities of the second class to remit certain taxes withheld from the wages of nonresidents to certain political subdivisions; increasing the limit on taxation; requiring banks and other financial institutions to pay over certain delinquent taxes of depositors to taxing authorities; providing for the liability of corporate officers; providing civil penalties; and making editorial changes.