A taxable asset purchase allows the buyer to "step up," or increase, the tax basis of the acquired assets to reflect the purchase price. Complete this form to claim Consumer Use Tax in instances where the consumer made a purchase and was not charged the proper sales tax.Penalty Waiver Form. Trade or business items. Refund of general sales taxes. State sales tax purposes. You must report and remit your sales and use tax on your regular sales tax return. Electronic filing Sales taxes can be filed online through the Comptroller website. Sales and Use Taxes are due no later than the 20th day of the month, following the end of the preceding month. Complete and submit the Sales and Use Tax Refund (form SUT205), or the Purchases for Refund (form SUT212) to receive your refund quickly and hassle free.