For example (just an example), if you are active stock trader and make around $10,000 each month, do you need to make some estimated tax payment each quarter? If not, when filing tax return for whole year, will government (federal government and state government) ask you to pay interest on the capital gain?
Unlike W2 salary(employer uses form W-4 to hold some tax), no capital gain is held. For small amount of capital gain, I think it is okay to report whole capital gain during tax filing season. But if you are a good active trader and make quite some money for most of time, brokerage company does not hold tax.
So the whole question is: for some large amount of capital gain, does government require stock trader to make estimated tax each quarter?
Edit: The answer is yes, the estimated payment is required.
So make estimated tax each quarter for both federal government and state government? Actually, I think estimated tax is only first THREE quarters, correct? For the fourth quarter, I can file tax return during tax season.
For example, if I make $50k for first quarter and make the estimated tax; I lost $20k for second quarter and no estimated tax is made; I make $20k for third quarter, do I still need to make estimated tax on third quarter (given that I lost $20k in second quarter)?