@Tsing
Do you have non-employee income? Normally, your withholding should be set to cover your tax. People pay estimated taxes when they have non-employee income (whether interest and dividends, stock sales, Schedule C, etc.). You can use the IRS Tax Withholding Estimator to estimate what your withholding should be.
If you want to file that first quarter estimate tax form, you can go here to see the forms and the instructions.
Alternatively, you can go to the IRS Payment webpage and just pay the 1st quarter there.
How do you know how much to pay? You might use the Withholding tool above to get a feel for the amount of tax you might owe, then pay that over the four quarters. But a definite answer requires more information than we have here in the Community.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
