To best determine how much you should be withholding from your paycheck, you can use this W-4 Calculator . You may want to review your current paystubs to see if the correct amount of taxes are being withheld.
If you determine that your withholdings are too small, you could submit a new w-4 to your employers.
here is an link to the explanation of the w-4 https://turbotax.intuit.com/tax-tips/irs-tax-forms/what-is-a-w-4-form/L2NapDzX2.
You can also use our tax refund estimator to find out how much you'll get back this year (or how much you’ll owe) TaxCaster Tax Calculator if your outcome is taxes owed, you can calculate additional withholding on your W-4 form on line 4c. You can update your W-4 form any time during the year.
Hope this helps!