Tax laws typically prescribe the due date(s) and basis of computation for taxes to be paid, and it is generally the responsibility of revenue bodies to specify the precise payment requirements: (i) when to pay, (ii) who should pay, and (iii) the methods available for making payments. To encourage the payment of taxes on time, tax laws also generally provide an interest sanction for late payment and, in some cases, a penalty. Given the importance of meeting government revenue targets, revenue bodies must also have effective processes for ensuring timely follow-up action for overdue tax payments.
The features of tax system design and administration that contribute to high levels of effectiveness in collecting taxes on time and their enforcement where liabilities become overdue are specifically addressed in the IMF’s diagnostic tool (TADAT) (IMF, 2015[7]) and in other publications of international bodies.
Good practices in the collection of tax debts include:5 (i) aiming for optimal use of tax withholding at source and advance payment regimes. For advance payments, ensure that taxpayers can readily determine the amounts that they are expected to pay and provide advance notice of payment due dates, (ii) promoting the use of electronic payment methods, (iii) providing an appropriate legal framework, including comprehensive debt recovery powers and suitable late payment penalties and interests that are common across the main taxes, (iv) establishing dedicated debt collection enforcement units with full-time specialist staff; make use of outbound call centers and other communication facilities to contact debtors during and outside regular business hours, (v) managing the arrears inventory by reference to value, age, and collectability of cases; give priority attention to newer debts, noting that recovery rates on older tax arrears tend to decline over time, (vi) ensuring prompt write-off of established uncollectible arrears, and (vii) having an efficient and effective system of case management (IMF, 2015[7]).
Other practices also existed in form of withholding at source and voluntary disclosure mechanism. Within the tax withholding at source method, intermediary bodies such as employers and financial institutions are involved. They are imposed to withhold tax from the payment of income so that taxpayers could fulfil their tax obligation on time. For example in Viet Nam, employees’ income taxes are withheld by employers and are deposited before the 20th of the following month. On the other hand, Hong Kong, China and Singapore are not implementing this method, thus employers have to make advance payments and file returns.
In addition to the employment income, tax withholding at source also applied for other categories of personal income such as dividends, interest, rents, royalties and patents, share sales and purchases, and another income of resident and non-resident taxpayers. Tax withholding on other categories of income are reported by revenue bodies in Bangladesh, China, Indonesia, Kazakhstan, Mongolia, the Philippines and Thailand. Meanwhile, limited use of this method can be observed in Australia; Hong Kong, China; Malaysia; Maldives New Zealand and Singapore. Moreover, tax withholding can also be applied on specific income from several goods such as marine products and cocoa that are subjected to tax withholding by the Solomon Islands’ revenue body.
Some of the most commonly used powers of revenue bodies for enforced debt collection were to grant taxpayers further time to pay, to make payment arrangements, to collect debts from third parties, to offset tax debts against tax credits or refunds, and to require taxpayers to obtain a tax clearance certificate before entering into government contracts. While the least frequently used or available powers were the ability to close a business or cancel a business license, denial of access to government services, imposition of liability on company directors, and publication of the names of debtors. A number of revenue bodies, including Brunei Darussalam; Cambodia; Hong Kong, China; Indonesia; Japan; Kazakhstan; Kyrgysztan Maldives; Mongolia; New Zealand; China; Tajikistan and Thailand reported what appeared to be a more limited set of enforced debt collection powers.