How much you pay in taxes is determined by your Form W-4. If your W-4 is not accurate, you can end up having too little or too much withheld from your paycheck.
The IRS recommends you reevaluate this every year, especially if you have had life events including a change in your dependents, marriage, divorce, or your spouse changes jobs.
To make changes to your 2019 W-4, please visit my.unm.edu--> Employee Life--> Tax Forms--> Federal Tax Exemptions or Allowances (W4). For more information on tax withholding for individuals, review the IRS website, and check out their handy withholding calculator.