Personal federal income taxes for the 2025 tax year (which you file in 2026) are due Wednesday, April 15, 2026. Estimated quarterly tax payments are due April 15, June 15, September 15, 2026, and ...

‍TLDR: If you're earning over $200,000 and have income beyond your regular paycheck—from stock options, restricted stock units, rental properties, side businesses, or investment gains—you likely need ...