VAT works on a simple principle. The value of a product is the share of incomes of participants in its production. These are wages, rents, interest and profits. A complete VAT will therefore tax all forms of income. Why then have a separate income tax or corporate tax? VAT also has several advantages over income tax. One, it’s easily collectible and minimises evasion since every stage of production is accounted for. Says Parth J. Shah, president, Centre for Civil Society: "In income tax, the more a person earns, the more she or he hides. In VAT, the more the manufacturer or the retailer earn, the more they declare, because they want refund. If they hide, they don’t get refund, so they pay a sort of tax anyway." Two, VAT’s easily payable. You pay the tax at the cash register. No forms, no fuss and no intrusion into your personal finances by the ITO. Three, VAT is levied on consumption, not savings, and therefore encourages savings and investment—the less you buy, the less tax you pay. Four, even farmers pay VAT!