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- Click ‘Get Form’ to open the ST-121 in the editor.
- Begin by entering the seller's name and address in the designated fields. Ensure accuracy as this information is crucial for tax exemption.
- Next, fill in your name and address as the purchaser. This section must match your Certificate of Authority details if applicable.
- Select whether you are using a single-purchase certificate or a blanket certificate by checking the appropriate box.
- Proceed to Part I, where you will check the exemptions related to production that apply to your purchase. Make sure to enter your Certificate of Authority number where required.
- Continue through Parts II and III, checking any additional exemptions that may apply and providing necessary details as prompted.
- Finally, certify the form by typing or printing your name, title, and signing it before submitting it to the seller.
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Related links
If you have a valid Certificate of Authority, you may use Form ST-121 to purchase, rent, or lease tangible personal property or services exempt from tax
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