St556 2026

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The document is a transaction return form for the Cook County Individual Purchaser Use Tax, applicable to personal property purchased at retail and registered in Cook County. It outlines the tax rate of 1%, the requirement to submit the return within 30 days of purchase, and includes sections for purchaser and vehicle information, dealership details, and a tax liability worksheet. Supporting documentation must be attached, and late submissions may incur penalties.

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Click ‘Get Form’ to open the st556 in the editor.
Begin by entering the Purchaser’s Name and Contact Number. Ensure that all details are accurate for effective communication.
Fill in your Address, including Apt/Suite, City, State, and Zip Code. This information is crucial for tax processing.
Input the Purchase Date of Vehicle and your Email Address (optional) for updates regarding your submission.
Next, provide the Dealership Information: Name, Contact Number, and Address of where you purchased the vehicle.
Complete the Vehicle Information section by entering the Year, Make, Model, and Vehicle Identification/Serial Number.
Use the Tax Liability Worksheet to calculate your tax due. Enter the Purchase Price and Trade-in Allowance as instructed.
Finally, certify your return by signing and dating it before submitting it along with required documentation.

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