(Tax Law, section 213-b(a))
Example 1: Corporation A, a New York C corporation, is a calendar-year filer.
Its tax for the 2020 taxable year is $200,000 and its tax for the 2021 taxable year is $50,000. Since the mandatory first installment of estimated tax for C corporations is based on the second preceding year's tax, Corporation A must pay a mandatory first installment of estimated tax for the 2022 taxable year equal to $80,000 (40% of $200,000). The installment must be made on form CT-300, on or before March 15, 2022.
Example 2: Corporation B, a New York S corporation, is a calendar-year filer.
Its tax for the 2021 taxable year is $3,000. Since the mandatory first installment for S corporations is based on the preceding year's tax, Corporation B must pay a mandatory first installment of estimated tax for the 2022 taxable year equal to $750 (25% of $3,000). The installment must be made with its report required for the 2021 taxable year (or with its application for extension) due on or before March 15, 2022.
Example 3: Corporation C, a New York C corporation, has two short periods for the 2021 taxable year. Its tax for the first 2021 short period, January 1, 2021, through August 31, 2021, is $710,000 and its tax for the second 2021 short period, September 1, 2021, through December 31, 2021, is $340,000. Corporation C must pay a mandatory first installment of estimated tax for the 2022 taxable year equal to $284,000 (40% of $710,000) on form CT-300, on or before March 15, 2022.
Example 4: Corporation D, a New York C corporation, is a calendar-year filer.
Its tax for the 2020 taxable year is $10,000,000 and its tax for the 2021 taxable year is $16,000,000. Corporation D knows that a short period report will be required pursuant to section 6-1.2 of this Subchapter for the period January 1, 2022, through March 31, 2022. It must still pay a mandatory first installment of estimated tax for the 2022 taxable year equal to $4,000,000 (40% of $10,000,000) on form CT-300, on or before March 15, 2022.
Example 5: Corporation E, a New York C corporation, first becomes subject to tax under article 9-A on June 1, 2021. Its first New York taxable year runs June 1, 2021, through December 31, 2021. Corporation E is not required to pay a mandatory first installment of estimated tax for the 2022 taxable year because it was not required to file a report for the second preceding taxable year of 2020.
N.Y. Comp. Codes R. & Regs. Tit. 20 §§ 7-3.3