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When Will Your New W-4 Go into Effect?
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Forms and Instructions Forms and Instructions
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Relevant Forms
Form W-4 Employee's Withholding Allowance CertificateTopic Screen for this Form
Form W-4 (SP) Employee's Withholding Allowance Certificate (Spanish version)Topic Screen for this Form
Principal Publications Publications
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Publication 505 - Tax Withholding and Estimated Tax - Tax Withholding for 2012
When Will Your New W-4 Go Into Effect? If the change is for the current year, your employer must put your...
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