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When are my tax form and payment due if I purchase or lease a vehicle?
- Form ST-556, Sales Tax Transaction Return, is due within 20 calendar days after the date of delivery of the item sold;
- Form ST-556-LSE, Transaction Return for Leases, is due within 20 days after the date of delivery of the item leased;
- Form RUT-25, Vehicle Use Tax Transaction Return, is due within 30 days after the date the item is brought into Illinois;
- Form RUT-25-LSE, Use Tax Return for Lease Transactions, is due within 30 days after the date the item is brought into Illinois;
- Form RUT-50, Private Party Vehicle Use Tax Transaction Return, is due within 30 days from the date the vehicle was acquired by purchase, gift, or transfer, or within 30 days of bringing it into Illinois if acquired outside of Illinois; and
- Form RUT-75, Aircraft/Watercraft Use Tax Transaction Return, is due within 30 days from the date of acquiring the aircraft or watercraft if acquired in Illinois, or within 30 days of bringing it into Illinois if acquired outside of Illinois.
The process for applying for title and registration in Illinois requires that one of the tax forms listed below is submitted, along with the application for title and/or registration to the appropriate titling agency. The specific due date for timely filing of each form is as follows: