Whether or not you need to pay estimated taxes depends on actual amounts. The amount of your wages, amount of federal and state taxes taken out from the wages, and amount of Income earned from the Part-time Consulting work. You could have enough tax withholding taken out from wages, then you will not need to send in any Estimated Payments. You can use this IRS Withholding Calculator to do your paycheck checkup
https://www.irs.gov/newsroom/taxpayers-can-follow-these-steps-for-using-the-withholding-calculator-o...
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