Here are some of the key tax-related deadlines affecting businesses and other employers during the first quarter of 2024. Keep in mind that this list isn’t all-inclusive, so there may be additional deadlines that apply to you. If you have questions about filing requirements, contact us. We can ensure you’re meeting all applicable deadlines. January 16 (The usual deadline of January 15 is a federal holiday) Pay the final installment of 2023 estimated tax. Farmers and fishermen: Pay estimated tax for 2023. If you don’t pay your estimated tax by January 16, you must file your 2023 return and pay all tax due by March 1, 2024, to avoid an estimated tax penalty. January 31 File 2023 Forms W-2, “Wage and Tax Statement,” with the Social Security...