An extension — which must be filed by April 15 — pushes your due date for filing your return to October 15. You're still responsible for paying any taxes you owe or applying for an IRS payment ...
Under Idaho law, property taxes may be paid in full or in two halves. If paid in two halves, the first half of property taxes are due by Dec. 20, and a grace period extends to June 20 to pay the ...