Average-Rate Tax Adjustment

Section 190 — - AVERAGE-RATE TAX ADJUSTMENT

Section 190 is the substantive equivalent of 1961 s. 86 -- the technical provision allowing a deduction from total income-tax of an amount equal to AVERAGE-RATE-OF-TAX times the income on which NO income-tax is payable. Architecture: where total income includes income on which no tax is payable (e.g., share-of-profit from firm partner-share, certain exempt incomes which are AGGREGATED for rate-purposes only), the AO computes total tax on TOTAL INCOME (including such non-taxable income) at slab rates; then deducts notional tax on the non-taxable portion at average rate. Effect: the non-taxable portion increases the slab-rate-determination base but doesn't suffer actual tax. Common application: partner's share of firm profit (s. 9 / 1961 s. 10(2A) exemption); certain residual-non-taxable items aggregated for slab-impact only.

STATUTORY ARCHITECTURE

Mechanics: (i) Compute total income INCLUDING the non-taxable income; (ii) Compute total tax at slab rates on this aggregated income; (iii) Compute average rate = total tax / total income; (iv) Deduct from total tax: average rate * non-taxable income. Effect: the non-taxable income is excluded from final tax base but its inclusion in total income means slab-impact on OTHER income may be higher (rate-determination effect). Common usage: partner's share of firm profit; certain residual aggregated-for-rate items. Practitioner: cross-check ITR Schedule TTI computation; AO scrutiny under s. 142(1).

CROSS-REFERENCES

• Section 9 -- Partner's share of firm profit exempt.
• Section 122 -- Total income / GTI definition.
• Section 202 -- New-regime simplified rates.
• ITR Schedule TTI -- tax computation flow.