Declaration of estimated-Every individual who anticipates a Trenton tax liability not subject to withholding tax, of $200 or more, must file a declaration of estimated income tax. All businesses that anticipate any Trenton taxable income must file the Declaration form, regardless of the amount of income anticipated. The declaration is due April 15 for calendar-year filers, or four months after the end of the fiscal year. The declaration of estimated tax must be submitted with payment of at least one-fourth of the estimated annual tax. An equivalent amount should be paid on the 15th day of the sixth, ninth, and tenth months. The City will bill you automatically for the second, third, and fourth payments.