I forgot to setup estimated New York State tax payments for next year's return (2025). Can I still do this if I already filed my return?

The tax payments worksheet can be done anytime, and updated quarterly as your income changes (grows!!).  Can also go to NY State's website and set up your Estimated payments for 4/15, 6/15, 9/15 (and before any weekends) and hopefully have your 2025 taxes paid off by then September so you avoid late fees and have money left for the Holidays.  The Jan 15th one should just a review and minor adjustment.     
Overpaying and rolling it over to the next year is also how one avoids stress and late payment fees. 

For more information on NY estimated taxes and paying your estimates online, click here. If you need to estimate your tax for the 2025 tax year, click here. 

@armoore143