I work full time and receive a W-2. I am thinking of starting a side job (self employed) and want to know the income that comes in from the self employment, instead of paying the quarterly taxes into IRS, couldn't I just add it as extra on W4?
Is there anything wrong with this? After all when you file taxes it is all calculated into one anyways... are there any nit picking rules the IRS says you must pay it in quarterly separately? Or can I just pay this extra tax via W4 w/ my full time job?
