Interest on delayed tax payments requires self-assessed interest from the day after due date and for undue input tax claims.

Taxpayers who fail to pay tax within the prescribed period must self-assess and pay interest for the period the tax remains unpaid at government-notified rates, calculated from the day after the tax became due. Separately, a taxable person who makes an undue or excess claim of input tax credit or undue or excess reduction in output tax liability must pay interest on that undue or excess claim or reduction at a government-notified rate.

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