How would small businesses be treated under a VAT?
Most countries exempt small businesses from value-added tax, although many small business choice voluntarily to register for the VAT.
Most countries exempt small businesses from a value-added tax (VAT)—partly because small business is a powerful political constituency and partly because the administrative and compliance costs of taxing small businesses are high relative to the revenue raised.
The exemption is a mixed blessing, however. Many businesses prefer to buy their inputs from businesses that are in the VAT system so they can claim credits on the tax they pay. As a result, countries allow small businesses to register for the VAT even if they are not required to do so. For example in Australia during the 2010–11 tax year, 37 percent of businesses had sales below the VAT threshold, yet 92 percent of all businesses registered for the VAT.
A higher exemption based on business sales saves on compliance costs but reduces revenue, with the revenue loss depending on the tax rate. A recent study by Treasury Department economists finds that with a 10 percent VAT in the U.S., the optimal exemption level based on sales would be about $200,000 and would exempt about 43 million businesses (Brashares et al.). That exemption would be higher than in most other countries, but the 10 percent rate would be lower than in most other countries. At a 20 percent rate, which is close to the OECD average, the optimal exemption would be $90,000, which is within the range of exemptions in other countries.
Bain, Kathrin, Michael Walpole, Ann Hansford, and Chris Evans. 2015. “The Internal Costs of VAT Compliance: Evidence from Australia and the United Kingdom and Suggestions for Mitigation.” eJournal of Tax Research 23(1): 158–82.
Brashares, Edith, Matthew Knittel, Gerald Silverstein, and Alexander Yuskavage. 2014. “Calculating the Optimal Small Business Exemption Threshold for a US VAT.” National Tax Journal 67(2): 283–320.