TaxSaral
Section 46Business & Professionwas Section 35AD in IT Act 1961

Specified Business Deduction — 100% Capital Expenditure Write-Off

Section 46 of the IT Act 2025 allows businesses in 14 designated priority sectors to claim a 100% deduction on eligible capital expenditure. The provision is optional, covers sectors ranging from cold chain facilities to semiconductor manufacturing and infrastructure projects, and comes with strict conditions on depreciation, cash payments, asset holding period, and loss set-off.

Last updated: 18 July 2026

What Is Section 46?

Section 46 of the Income Tax Act, 2025 provides a significant tax benefit for businesses classified as specified businesses. Under this section, an assessee may claim a 100% deduction on eligible capital expenditure incurred for such businesses, subject to the prescribed conditions. The provision is optional — the assessee may choose whether or not to claim the deduction in any given tax year.

Section 46 is designed to encourage investment in certain priority sectors by allowing eligible businesses to claim an immediate 100% deduction for qualifying capital expenditure, rather than depreciating it over multiple years under the normal depreciation schedule.

What Is a Specified Business?

Specified businesses are those activities expressly covered under Section 46. If a business falls within the notified list and satisfies the applicable conditions, the capital expenditure incurred for that business may qualify for the deduction. The following table summarises the 14 eligible specified businesses along with their respective commencement dates:

S.No.Specified BusinessCommencement On or After
1Setting up and operating a cold chain facility01-04-2009
2Setting up and operating a warehousing facility for agricultural produce01-04-2009
3Laying and operating a cross-country pipeline for distribution of petroleum oil and natural gas (Only Indian companies, consortium, or authority/board/corporation/body established by a Central or State Act; must be approved by the Petroleum and Natural Gas Board)Natural gas: 01-04-2007 | Petroleum oil: 01-04-2009
4Building and operating a 2-star hotel or above01-04-2010
5Building and operating a hospital with 100 beds or more01-04-2010
6Developing and building a housing project under a slum redevelopment scheme01-04-2010
7Developing and building a housing project under an affordable housing scheme01-04-2011
8Production of fertilizers in India01-04-2011
9Setting up and operating an inland container depot or container freight station01-04-2012
10Bee keeping and production of bee's honey and wax01-04-2012
11Setting up and operating a warehousing facility for sugar01-04-2012
12Laying and operating a slurry pipeline for transportation of iron ore01-04-2014
13Setting up and operating a semi-conductor wafer fabrication manufacturing unit01-04-2014
14Operating, developing and maintaining a new infrastructure facility01-04-2017

Key Conditions and Important Notes

  1. 1.The business must not be formed by splitting or reconstruction of an existing business.
  2. 2.If any expense has been incurred prior to the commencement of the business and the amount has been capitalised in the books of account on the date of commencement, the deduction under Section 46 shall be allowed in the tax year of commencement of such business for that capital expenditure.
  3. 3.Deduction is allowed on all capital expenditures other than: (a) Land; (b) Goodwill; (c) Financial Instruments; and (d) Any capital expenditure where payment exceeding ₹10,000 was made through cash or any other specified medium of payment.
  4. 4.The loss from a specified business can be set off only against the profit of another specified business — Section 114.
  5. 5.The loss from a specified business can be carried forward for an indefinite number of years.
  6. 6.Depreciation is not allowed on any capital expenditure for which a deduction has been claimed under Section 46.
  7. 7.If deduction under Section 46 is claimed in respect of any capital expenditure, no deduction under Sections 138–152 shall be allowed for that same expenditure.
  8. 8.If the asset on which deduction was claimed under Section 46 is subsequently sold, the entire sale price shall be taxable under the head Profits and Gains of Business or Profession — Section 26.
  9. 9.The plant and machinery deployed in the specified business must be new. Exceptions: (a) Imported plant and machinery need not be new; (b) Up to 20% of the total plant and machinery can consist of old equipment.
  10. 10.The deduction should be evaluated carefully — once deduction under Section 46 is claimed on a capital expenditure, depreciation on that expenditure is not available in any subsequent year. This is a permanent restriction, not a deferral.
  11. 11.For the purposes of this section, 'infrastructure facility' means: (a) Road including toll road, bridge, or a railway system; (b) Water supply, water treatment, irrigation, sanitation, sewage, and waste management; (c) Port, airport, inland waterway, and sea navigational project; (d) Highway project.
  12. 12.Audit under Section 63 is mandatory in order to claim deduction under Section 46.
  13. 13.The asset must be used exclusively for specified business purposes for a period of 8 years from the date of its acquisition or installation.

Consequence of Early Non-Specified Use (Before the 8-Year Lock-In)

If the asset on which Section 46 deduction was claimed is used for non-specified business purposes before the 8-year lock-in period expires, the earlier deduction is partially clawed back. The amount that becomes taxable under the head PGBP is determined as follows:

Amount of Deduction claimed under Section 46XXX
Less: Depreciation allowable (had the asset been depreciated instead)(XXX)
Amount taxable under PGBPXXX

Further, the cost of acquisition of the asset for the purpose of the non-specified business going forward shall be computed as follows:

Amount of Deduction claimed under Section 46XXX
Less: Depreciation allowable for non-specified business(XXX)
Cost of Acquisition for non-specified businessXXX

Early diversion of the asset to non-specified business purposes before 8 years triggers a dual consequence: (1) a partial recapture of the earlier Section 46 deduction as PGBP income, and (2) a reduced cost of acquisition for the asset in the non-specified business. Plan asset usage carefully before claiming the deduction.

Worked Illustration — XYZ Ltd. (Three-Star Hotel in Madurai)

Facts of the Case

  • XYZ Ltd. is engaged in the business of running hotels. It commenced commercial operations of a new three-star hotel in Madurai, Tamil Nadu on 1 April 2026.
  • Capital expenditure of ₹50 lakh was incurred during January 2026 to March 2026 exclusively for this new hotel business and was capitalised in the books of account on 1 April 2026 (date of commencement).
  • During Tax Year 2026-27, additional capital expenditure of ₹2 crore (₹200 lakh) was incurred, of which ₹1.50 crore (₹150 lakh) was for acquisition of land exclusively for the hotel business.
  • All expenditure during Tax Year 2026-27 was made by account payee cheque or through ECS via a bank account.
  • Profits from the new hotel in Madurai (before claiming deduction under Section 46) for Tax Year 2026-27: ₹25 lakh.
  • XYZ Ltd. also operates an existing four-star hotel in Coimbatore (commenced approximately 10 years ago), which generated profits of ₹120 lakh for Tax Year 2026-27.
  • All conditions prescribed under Section 46 have been fulfilled. No deduction under Chapter VIII (Sections 138–152) has been claimed on any of the above expenditure.

Computation of Profits and Gains of Business or Profession — Tax Year 2026-27

Profits from the specified business of new hotel in Madurai (before Section 46 deduction)₹25,00,000
Less: Deduction u/s 46 —
Capital expenditure incurred during TY 2026-27 (₹200 lakh less ₹150 lakh being cost of land — excluded)₹50,00,000
Capital expenditure prior to 1.4.2026, incurred Jan–Mar 2026 (capitalised on 1.4.2026, deductible in year of commencement)₹50,00,000
Total deduction allowable under Section 46₹1,00,00,000
Loss from the specified business of new hotel in Madurai(₹75,00,000)
Add: Profit from the existing specified business — four-star hotel in Coimbatore₹1,20,00,000
Net profit from PGBP after set-off of specified business loss under Section 114₹45,00,000

Key observations from the illustration: (1) The ₹50 lakh pre-commencement expenditure (January–March 2026, capitalised on 1 April 2026) is fully deductible in TY 2026-27 under condition 2 — it is treated as incurred in the year of commencement. (2) The ₹150 lakh land cost is expressly excluded from the Section 46 deduction and receives no deduction. (3) The ₹75 lakh loss from the Madurai hotel is eligible for set-off against the ₹120 lakh profit from the Coimbatore hotel under Section 114, since both are specified businesses (hotels).

FAQs on Section 46

Is claiming deduction under Section 46 mandatory?

No. The deduction is entirely optional. An assessee engaged in a specified business may choose whether or not to claim the deduction under Section 46, depending on the overall tax position and the long-term implications — particularly the permanent trade-off against future depreciation. If the deduction is not claimed, the normal depreciation schedule under the Act will apply to the qualifying asset.

Can depreciation be claimed on an asset after Section 46 deduction has been availed?

No. If a deduction under Section 46 is claimed on a particular capital expenditure, depreciation on that same expenditure is not allowed either in the same year or in any future year. This is a permanent restriction — once the Section 46 route is chosen for an asset, the depreciation benefit is lost for the entire life of that asset.

What happens if the asset is later used for a non-specified business purpose?

If the asset is diverted to non-specified business purposes before the 8-year lock-in period expires, the earlier deduction claimed under Section 46 is partially reversed. The clawback amount — computed as the deduction claimed minus notional depreciation allowable — becomes taxable as PGBP income in the year of diversion. Additionally, the residual amount (after reducing the notional depreciation) is treated as the cost of acquisition of the asset for the non-specified business going forward.

Key Takeaway

Section 46 can be highly beneficial for eligible businesses because it permits an immediate 100% deduction of qualifying capital expenditure — effectively a full write-off in the year of incurrence or commencement. However, the benefit comes with important restrictions, particularly in relation to depreciation, cash payment limits, asset holding period, and loss set-off rules. For taxpayers engaged in specified businesses, Section 46 may offer significant tax planning opportunities when used judiciously. Before claiming the deduction, it is important to verify whether the business qualifies as a specified business, whether the expenditure falls within the eligible categories, and whether all prescribed statutory conditions have been fulfilled — including mandatory audit under Section 63.

Have a question about Section 46?

Ask our tax team — we'll send a detailed reply to your email within 2–3 business days.

Disclaimer: This analysis is based on the Income Tax Act 2025 (Tax Year 2026-27) and is for educational purposes only. Tax laws are subject to change. Always verify with a Chartered Accountant or tax advisor before making decisions.