Clause 405 - Computation of advance tax.

Advance tax computation: taxable tax less tax deductible or collectible at source, with agricultural income treated per the finance act.

Advance tax equals income tax on the specified sum less tax deductible or collectible at source from income included in that sum, provided such income is computed before deductions and tax has been paid, credited, received or debited after deduction or collection; where the Finance Act mandates inclusion of net agricultural income, it is taken as the amount used for charging tax on the specified sum for assessing officer orders or as the assessee's estimate otherwise.