Attribution and collection are separate questions
For tax year 2026–27, section 100 can make the person whose asset income or firm-membership income is included with another assessee liable for the attributable portion of tax. Establish inclusion under Chapter V or section 25(a), the covered person and service by the Assessing Officer of a notice of demand in this behalf. A family relationship or bank credit alone does not prove these conditions. Income-tax Act, 2025 as amended by Finance Act, 2026: section 100.
Identify the person and the tax portion
The section identifies the person in whose name the asset stands or the member of the firm. Trace that person to the included income and assessment computation. Liability concerns the attributable portion of tax levied, not the included income itself or automatically the assessee’s entire demand. The section does not prescribe a universal flat rate or income-ratio allocation. Obtain the actual supported computation, including relevant tax rates and relief.
Joint ownership does not impose an equal-share collection limit
Clause (b) makes joint holders jointly and severally liable for such tax. A private contribution agreement does not automatically cap the authority’s claim at each holder’s fractional ownership. Joint liability also does not multiply one debt into separate cumulative debts. Reconcile payments actually credited to the same obligation.
Build a demand-to-payment file
Clause (c) applies Chapter XIX-D accordingly. Review applicable collection provisions, operative stays and later orders separately. Keep title or membership evidence, inclusion working, served demand, payment challans and allocation confirmations. A payment to a relative is not proof of discharge to Government. The examples stipulate verified attributable tax; they do not calculate slab tax, surcharge, cess or TDS-credit entitlement.
Applicable primary references
Income-tax Act, 2025 as amended by Finance Act, 2026: section 100
Six worked illustrations
All facts and amounts below are fictional. Assumptions describe the model, not additional statutory rules.
Illustrative example 1: Income versus tax
Included income is ₹2,00,000 and verified attributable tax ₹36,000. The covered demand concerns ₹36,000, not ₹2,00,000: a difference of ₹1,64,000.
Illustrative example 2: Income-ratio trap
Assume total income ₹10,00,000, included income ₹2,00,000 and total tax ₹1,20,000. A simple ratio gives ₹24,000. If the supported attributable-tax demand is ₹36,000, that shortcut understates it by ₹12,000. No statutory formula is inferred.
Illustrative example 3: Joint holders
Covered unpaid tax is ₹40,000 on jointly held assets. Two equal holders cannot automatically assume a ₹20,000 statutory collection ceiling each. The single debt remains ₹40,000, not ₹80,000.
Illustrative example 4: Credited collection
Against ₹40,000, an actual allocated payment of ₹15,000 leaves ₹25,000. A private reimbursement without tax payment does not support that reduction.
Illustrative example 5: Later reduction
Assume an operative order reduces attributable tax from ₹60,000 to ₹45,000 and ₹20,000 is credited. Remaining tax is ₹25,000. Using the original ₹40,000 unpaid balance overstates it by ₹15,000; confirm the recovery update.
Illustrative example 6: Firm-member demand
A qualifying member’s verified demand is ₹28,000. Allocated payments of ₹10,000 and ₹8,000 leave ₹10,000. These payments change the collection balance, not the included income.
Ten-step verification table
| Step | Action | Evidence |
|---|---|---|
| 1 | Confirm period | Applicable Act and tax year. |
| 2 | Identify inclusion authority | Chapter V or section 25(a) basis. |
| 3 | Identify covered person | Asset title or firm membership. |
| 4 | Trace included income | Assessment computation. |
| 5 | Verify attributable tax | Supported allocation, not generic ratio. |
| 6 | Check demand service | Notice and service evidence. |
| 7 | Review joint ownership | Title and private arrangements distinguished. |
| 8 | Credit payments | Challans and allocation confirmations. |
| 9 | Check later orders | Revisions, stays and recovery updates. |
| 10 | Close the balance | One reconciled outstanding-tax schedule. |
Sixteen practitioner FAQs
1. Does section 100 decide original income attribution?
Establish the specified inclusion first; this section addresses payment liability.
2. Which inclusion provisions are referenced?
Chapter V and section 25(a).
3. Who is the asset-related person?
The person in whose name the asset stands.
4. Does the section cover firm-membership income?
Yes, on its stated conditions.
5. Is every relative automatically liable?
No. Test the statutory person and income connection.
6. Is demand service material?
Yes. Clause (a) specifies notice by the Assessing Officer in this behalf.
7. Is included income itself the tax payable?
No. Identify attributable tax.
8. Is one flat rate prescribed here?
No universal flat-rate computation is supplied.
9. Is an income ratio always valid?
No. Obtain the actual supported allocation.
10. What happens for joint holders?
Clause (b) imposes joint and several liability for such tax.
11. Does a private half-share agreement necessarily cap recovery?
Do not assume that under joint liability.
12. Can one liability be counted twice?
Maintain one collection bridge with credited payments.
13. Does reimbursing a co-holder discharge Government dues?
Not without actual tax-payment evidence.
14. Which collection framework applies?
Chapter XIX-D applies accordingly under clause (c).
15. What if an operative later order reduces tax?
Reconcile its effect with demand and recovery records.
16. Do the examples calculate tax rates or credit entitlement?
No. They assume verified attributable tax and reconcile collection.
Conclusion
Verify the covered asset holder or firm member, attributable tax and served demand before collecting tax on income assessed with another person.