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Finalization Of 2020 Form W-4

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As the IRS works to finalize the 2020 Form W-4, Employee’s Withholding Certificate, we know the uncertainty of how you will explain the form can be frustrating. APA will continue to update you as we get the latest information. Some of your employees might be coming to you with questions, so to help, we have put together a sample letter you can use to update your staff about the form.

We placed the sample letter into a Word document that will download if you visit this link.

The full copy of the sample letter is also below. We will continue updating our website with the most recent information available. We will also add a new section to the APA website dedicated to the 2020 Form W-4, under Compliance Hot Topics.

Thank you for your time and trusting APA to be a resource you can turn to.

Sample Letter Explaining the 2020 Form W-4

To: (all employees or individually named employees)
CC: Human Resources
From: (your name here)
Date: (fill in as appropriate)
Re: 2020 Form W-4

The 2020 Form W-4, Employee’s Withholding Certificate, is very different from previous versions. This is due to the federal tax law changes that took place in 2018. The Internal Revenue Service (IRS) is not requiring all employees to complete the revised form and has designed the withholding tables so that they will work with both the new and prior year forms. However, certain employees will be required to use the new form: those hired in 2020 and anyone who makes withholding changes during 2020.

Even though the IRS does not require all employees to complete the revised form and even if your tax situation has not changed, we recommend you perform a “paycheck checkup” to see if you need to make adjustments to your current withholding. To conduct the checkup, you can use the IRS’s Tax Withholding Estimator ( To effectively use the estimator, it is helpful to have a copy of your most recent pay stub and tax return. It is likely that the estimator will be updated to account for the 2020 tax tables in early January. Please note: if you do not submit a new form, withholding will continue based on your previously submitted form.

Before completing the 2020 Form W-4, please read the instructions that are included with the form. You must complete Steps 1 and 5. Steps 2, 3, and 4 are optional, but completing them will help ensure that your federal income tax withholding will more accurately match your tax liability. Step 1 is for your personal information; Step 2 is for households with multiple jobs; Step 3 is used to claim tax credits for dependents; Step 4 is for other adjustments (additional income such as interest and dividends, itemized deductions that exceed the standard deduction, and extra tax you want withheld); and Step 5 is where you sign the form.

The IRS takes your privacy seriously and suggests that, if you are worried about reporting income from multiple jobs in Step 2 or other income in Step 4(a), you check the box in Step 2(c) or enter an additional withholding amount in Step 4(c). To determine the additional withholding amount, you can use the withholding estimator.

The IRS has also published Frequently Asked Questions that you may find helpful as you complete the form (