Made two purchases on Gilt in the last few months. Used a coupon on each occasion. Gilt charged sales tax on the pre-discount total on each occasion. On one transaction, the discount dropped the price below $110 and therefore there should have been no sales tax whatsoever. Called customer service and was told that tax is charged pre-discount so I let them know that was completely wrong. Short time later, received an email indicating that tax would be refunded. Can't be the only one this was done to. Check your receipts carefully.