Apportionment of deductions clarifies business use limits and streamlines depreciation rules under the new income tax framework.

Clause 28 limits deductions for rent, local taxes, insurance and repairs to amounts wholly and exclusively for business use and permits apportionment by the Assessing Officer where use is mixed; Clause 33 creates a structured depreciation regime for tangible and intangible assets (excluding goodwill) including block of asset calculations, special provisions for new machinery and power generation assets, short use treatment, and rules on successor transactions.

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