Do I need to file Form W‑4S with the IRS?

No. You give the completed certificate to the third‑party payer of your sick pay. Keep the worksheet for your records.

Can I change the withholding amount later?

Yes. Submit a new Form W‑4S whenever your financial situation changes or you want a different withholding amount.

What is the minimum amount the IRS allows me to withhold?

The minimum is $4 per day, $20 per week, or $88 per month. The payer cannot withhold less than these amounts.

Is the Formize filler truly free?

Yes. Formize provides a free, secure online PDF filler for IRS forms, including Form W‑4S.

What if my sick‑pay provider is my employer?

Employers already withhold federal tax from sick pay, so Form W‑4S is not required in that case.

Can I submit the form electronically to the payer?

Most third‑party payers accept a printed copy. Check with your payer; some may allow a scanned PDF upload.

What happens if I withhold too much?

Any excess tax withheld will be refunded to you when you file your annual tax return.

Do I need to attach the worksheet to the payer?

No. The worksheet is for your personal records only; only the top part of the form goes to the payer.

IRS Form W‑4S – Fillable PDF for Sick Pay Tax Withholding

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IRS Form W‑4S – Fillable PDF for Sick Pay Tax Withholding

Form W‑4S, officially titled Request for Federal Income Tax Withholding From Sick Pay, is the IRS document you give to a third‑party payer (such as an insurance company) so that federal income tax can be withheld from your sick‑pay benefits.

What Is Form W‑4S?

This one‑page form has two parts: a Withholding Certificate that the payer keeps, and a Worksheet for your records. The certificate tells the payer how much tax you want taken out of each payment, while the worksheet helps you calculate the correct amount based on your projected income, deductions, and credits.

How to Complete Form W‑4S Online with Formize

Instead of downloading the PDF and editing it in a desktop program, you can fill it out instantly on our site:

Click the **"Fill out this form"** button below.
Wait a few seconds while the Formize PDF Filler app loads the official IRS PDF.
Enter your personal information, Social Security number, and the exact dollar amount you want withheld.
Complete the worksheet section to verify your calculation.
Review the completed form, then click **Submit** to download a signed copy or print it for your payer.

When Should You Use Form W‑4S?

Use this form whenever you receive sick‑pay from a third‑party payer (e.g., an insurance carrier) and you want federal tax withheld. It is not required when the sick pay comes directly from your employer, because employers already withhold taxes.

Common Mistakes to Avoid

Entering amounts in cents – the IRS requires whole‑dollar amounts only.
Withholding less than the minimum: $4 per day, $20 per week, or $88 per month.
Reducing your net payment below $10 – the payer cannot withhold more than the payment allows.
Forgetting to sign and date the form – an unsigned form is invalid.

Where to Find Help

If you have questions about the calculations, consult the IRS instructions (linked on the form) or a tax professional. You can also review our detailed FAQ below.

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FAQ

Do I need to file Form W‑4S with the IRS?
No. You give the completed certificate to the third‑party payer of your sick pay. Keep the worksheet for your records.
Can I change the withholding amount later?
Yes. Submit a new Form W‑4S whenever your financial situation changes or you want a different withholding amount.
What is the minimum amount the IRS allows me to withhold?
The minimum is $4 per day, $20 per week, or $88 per month. The payer cannot withhold less than these amounts.
Is the Formize filler truly free?
Yes. Formize provides a free, secure online PDF filler for IRS forms, including Form W‑4S.
What if my sick‑pay provider is my employer?
Employers already withhold federal tax from sick pay, so Form W‑4S is not required in that case.
Can I submit the form electronically to the payer?
Most third‑party payers accept a printed copy. Check with your payer; some may allow a scanned PDF upload.
What happens if I withhold too much?
Any excess tax withheld will be refunded to you when you file your annual tax return.
Do I need to attach the worksheet to the payer?
No. The worksheet is for your personal records only; only the top part of the form goes to the payer.

HOW TO

How to fill out Form W-4S for free, online in 5 easy steps:

1
Open the Fillable Form
Click the **"Fill out this form"** button on the page. The Formize PDF Filler will open the official IRS Form W‑4S instantly.
2
Enter Your Information
Type your name, SSN, address, and the exact dollar amount you want withheld per payment.
3
Complete the Worksheet
Use the worksheet section to calculate your estimated tax based on projected income, deductions, and credits.
4
Review and Sign
Check all entries for accuracy, then add your electronic signature and date.
5
Download or Print
When you’re satisfied, click **Submit** to download the completed PDF or print it to give to your payer.

ABOUT

Tax forms

Form W-4S is one of Tax forms that are documents used to report information about an individual's or business's income, deductions, and tax liability to the relevant tax authority. These forms are necessary to comply with tax laws and fulfill tax obligations. Tax forms vary depending on the country and the specific tax requirements in place. Here are some common types of tax forms:

Individual Tax Forms: These forms are used by individual taxpayers to report their personal income and claim deductions, credits, and exemptions. Examples include the 1040 form in the United States or the Self-Assessment Tax Return form in the United Kingdom.

Business Tax Forms: Business tax forms are used by companies, partnerships, or self-employed individuals to report their business income, expenses, and other tax-related information. Examples include the Schedule C form (Profit or Loss from Business) in the United States or the CT600 form (Company Tax Return) in the United Kingdom.

Payroll Tax Forms: These forms are used by employers to report the wages, salaries, and taxes withheld from their employees' paychecks. Examples include the W-2 form in the United States or the P60 form in the United Kingdom.

Sales Tax Forms: Sales tax forms are used by businesses to report and remit sales tax collected on taxable goods or services. The specific sales tax forms vary by jurisdiction.

Value Added Tax (VAT) Forms: VAT forms are used in countries that impose a value-added tax to report and remit VAT collected on sales and claim VAT credits for purchases. Examples include the VAT return forms used in many countries.

Estimated Tax Forms: Estimated tax forms are used to report and pay estimated taxes on income that is not subject to withholding, such as self-employment income or investment income.

These are just a few examples of the numerous tax forms that may exist. The specific forms required depend on the tax laws and regulations in your country or jurisdiction. It is important to consult the tax authority's guidelines or seek professional advice to determine which forms are applicable to your situation.

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