1 The first step is to sign into up.odysseyconsult.com and click the menu icon on the top left-hand side of home page

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2 Hover over "Menu" icon and under Pay click on "Income Tax"

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3 Click "Add/Change Withholding Form (W-4)" on right side of screen

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4 Click "Employee's Withholding Allowance Certificate (W-4)" if changing federal taxes

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5 Select Marital Status

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6 Type in number of allowances being claimed

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7 If any additional withholding, type in dollar amount of additional withholdings

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8 Click Next

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9 Click checkbox next to the sign and agree messaging

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10 Click Sign & Save

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11 Click Submit

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12 Congratulations! You have now fully updated your W-4 tax withholding information.

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Here's an interactive tutorial for the visual learners