cashed out stocks in 2025 and did not pay federal taxes, can I correct when filling in 2025 taxes?

[tjiambac]

did not pay federal taxes on stocks cashed out. Can I correct this before (or during) filling 2025 return?

[VolvoGirl]

Correct what?  Too late to have withholding taken out or send in an estimated payment.   Just add the sales to your tax return and if you have a net gain it will be added to all your taxable income to figure the tax.

Even though it shows up as income on the first page,if you have capital gains or qualified dividends the tax on line 16 is not taken from the tax table but is calculated separately from schedule D.  The tax will be calculated on the Qualified Dividends and Capital Gain Tax Worksheet.  It does not get filed with your return.    In the online version you need to save your return as a pdf file and include all worksheets to see it.

[DianeW777]

Not exactly. The sooner you file the less penalty and/or interest you will have, however you cannot go backwards to pay estimated tax. When you file your return you will know your total tax due and it's possible to have penalty and interest depending on the period the cash out occurred.

You can pay as soon as you know the amount to the IRS using this link: Pay IRS Online