Government will waive service tax on debit and credit card transactions of up to Rs 2,000 in a bid to promote digital transactions amid cash crunch following withdrawal of old Rs 500 and 1,000 banknotes.Starting today, you will not be charged any service tax when you use your credit or debit card for upto Rs. 2,000.The exemption is part of the government’s all-out initiative to steer the country away from a cash economy to digital transactions.