Section 105(1) in Karnataka Municipalities Act, 1964
(1)Every owner or occupier who is liable to pay property tax under this Act shall submit every year to the Municipal Commissioner or the Chief Officer, as the case may be or the officer authorised by the Municipal Commissioner or the Chief Officer in this behalf (hereinafter referred to as authorised officer), a return in such form, within such period and in such manner as may be prescribed:Provided that, if the owner or occupier who is liable to pay tax files his returns and also pays the property tax which is due within one month from the date of commencement of the financial year he shall be allowed a rebate of five percent on the tax payable by him.