All taxpayers subject to the tax herein levied and assessed
shall be entitled to a discount of 2% of the amount of said tax upon
making payment of the whole amount thereof within two months after
the date of the tax notice. All taxpayers who fail to make payment
of such tax charged against them for a period of four months after
the date of the tax notice shall be charged a penalty of 10%, which
penalty shall be added to the taxes by the Tax Collector and collected
by him.