Edit, Download, and Sign the CT-W4NA Employee Withholding Certificate Form
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How do I fill this out?
To fill out Form CT-W4NA, start by entering your personal details at the top. Next, estimate the percentage of your services performed in Connecticut. Finally, review your estimates, sign the form, and submit it to your employer.

How to fill out the CT-W4NA Employee Withholding Certificate Form?
1
Enter your personal information including name and address.
2
Estimate your working days inside and outside Connecticut.
3
Calculate the percentage of services performed in Connecticut.
4
Sign the form to declare the accuracy of your estimates.
5
Submit the completed form to your employer.
Who needs the CT-W4NA Employee Withholding Certificate Form?
1
Nonresidents working in Connecticut who need to report their income.
2
Employees whose service performance percentage has changed to file an accurate form.
3
Individuals changing their residency status from resident to nonresident.
4
Employers needing to adjust withholding based on employee estimates.
5
Job seekers in Connecticut needing to adhere to withholding tax obligations.
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1
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What are the instructions for submitting this form?
To submit Form CT-W4NA, provide a completed copy to your employer as soon as possible. You can hand it over physically or send it via fax or email, as per your employer’s guidelines. Ensure all information is accurate to avoid withholding errors.
What are the important dates for this form in 2024 and 2025?
For the year 2024, ensure to submit Form CT-W4NA if your work patterns change. In 2025, it's crucial to review any updates to residency or service estimates annually.

What is the purpose of this form?
The purpose of Form CT-W4NA is to help nonresidents accurately report their income tax withholding in Connecticut. This form allows individuals to estimate the percentage of services performed within the state and communicate this to their employers. By filing this form, nonresidents ensure that appropriate tax withholdings are made from their wages, easing tax compliance.

Tell me about this form and its components and fields line-by-line.

- 1. First Name: Your first name as it appears on official documents.
- 2. Last Name: Your last name as it appears on official documents.
- 3. Social Security Number: Your unique Social Security Number for tax identification.
- 4. Home Address: Your residential address including city, state, and ZIP code.
- 5. Estimated Working Days: Total working days anticipated both within and outside Connecticut.
What happens if I fail to submit this form?
If you fail to submit Form CT-W4NA, your employer may withhold Connecticut state taxes incorrectly. This may result in under-withholding which could lead to a tax bill during filing season.
- Incorrect Tax Withholding: Failure to submit may lead to improper taxes being withheld, resulting in financial liability.
- Tax Filing Complications: Not filing the form could complicate your tax filing process, leading to audits or penalties.
- Employment Compliance Issues: Employers may face compliance issues if proper documentation is not provided by employees.
How do I know when to use this form?

- 1. Change in Service Percentage: File this form if your estimate of service days performed in Connecticut has changed.
- 2. Change in Residency Status: Use this form when changing from resident to nonresident tax status.
- 3. Nonresident Employment: This form is essential for nonresidents working in Connecticut to ensure proper tax practices.
Frequently Asked Questions
What is Form CT-W4NA?
Form CT-W4NA allows nonresidents working in Connecticut to report their withholding estimates for tax purposes.
Who should file Form CT-W4NA?
Nonresidents who perform services both inside and outside Connecticut must file this form.
How do I complete Form CT-W4NA?
You fill out your personal information, estimate your working days, and calculate the percentage of services performed in Connecticut.
How can I edit this form online?
Use the editing features on PrintFriendly to modify your Form CT-W4NA as needed.
How do I sign the PDF?
You can electronically add your signature on PrintFriendly before saving or printing the PDF.
Is it necessary to submit this form?
Yes, submitting this form ensures your employer withholds the correct amount of Connecticut tax.
What happens if I don’t file this form?
Failure to submit this form can result in incorrect tax withholding from your wages.
Can I share this form with my employer?
Yes, PrintFriendly allows you to easily share your completed Form CT-W4NA.
What if my residency changes?
If your residency status changes, you must update your Form CT-W4NA accordingly.
Where can I find more information?
For more details, visit the Connecticut Department of Revenue Services website.