Section 43B overrides accrual
Certain expenses are deductible only when actually paid. If unpaid by the relevant due date, the deduction can be disallowed and added back to taxable income.
Expenses covered
- Employer PF/ESI and welfare fund contributions.
- Interest payable to banks/financial institutions/government.
- Government duties, cess and taxes.
- Leave encashment, bonus and commission where applicable.
- MSME vendor payments under the 2023 amendment framework.
MSME payment rule
- Registered MSME vendor payments should be tracked separately.
- 15-day or 45-day rule depends on written agreement and MSMED Act limits.
- Disallowed amount may reverse in year of actual payment.
- Vendor Udyam status must be captured before year-end.
Before ITR due date check
- Unpaid statutory dues.
- Overdue MSME vendors.
- Loan interest arrears.
- Bonus/commission provisions.
- Tax audit reporting impact.
Section 43B Deductions: year and source check
Last fact-checked: 25 May 2026.
AY 2026-27 means FY 2025-26 income under the Income-tax Act, 1961. Tax Year 2026-27 means FY 2026-27 income under the Income Tax Act, 2025. Do not mix the two labels.
Use official portal pages, CBDT notifications, the supplied Act PDF and ICAI material before making a filing, payroll, TDS/TCS or rebate decision.
FAQs
Which year should I use for Section 43B Deductions?
Use AY 2026-27 for FY 2025-26 income under the Income-tax Act, 1961. Use Tax Year 2026-27 for FY 2026-27 income under the Income Tax Act, 2025.
What documents should I share with a tax expert?
Share the portal screenshot, exact year, income breakup, certificates, AIS/Form 26AS, notices, challans and any computation already prepared.
Can WorkIndex help me find a specialist?
Yes. Post a requirement with the legal year, records and deadline so experts can quote on the real issue instead of a generic page title.
Section 43B Deductions: year and source check
Last fact-checked: 25 May 2026.
AY 2026-27 means FY 2025-26 income under the Income-tax Act, 1961. Tax Year 2026-27 means FY 2026-27 income under the Income Tax Act, 2025. Do not mix the two labels.
Use official portal pages, CBDT notifications, the supplied Act PDF and ICAI material before making a filing, payroll, TDS/TCS or rebate decision.
What to verify for Section 43B Deductions
- Correct financial year, assessment year or tax year.
- Taxpayer type, age category, residential status and business/profession status.
- Exact income heads, including salary, house property, business/profession, capital gains, VDA and other sources.
- AIS/TIS, Form 26AS, TDS/TCS certificates, challans and portal pre-fill.
- Deductions/exemptions allowed in the selected regime and current ITR utility validation rules.
- Whether the issue is a calculation, filing, notice response, rectification, appeal or advisory position.
Section 43B Deductions: year and source check
Last fact-checked: 25 May 2026.
AY 2026-27 means FY 2025-26 income under the Income-tax Act, 1961. Tax Year 2026-27 means FY 2026-27 income under the Income Tax Act, 2025. Do not mix the two labels.
Use official portal pages, CBDT notifications, the supplied Act PDF and ICAI material before making a filing, payroll, TDS/TCS or rebate decision.
What to verify for Section 43B Deductions
- Correct financial year, assessment year or tax year.
- Taxpayer type, age category, residential status and business/profession status.
- Exact income heads, including salary, house property, business/profession, capital gains, VDA and other sources.
- AIS/TIS, Form 26AS, TDS/TCS certificates, challans and portal pre-fill.
- Deductions/exemptions allowed in the selected regime and current ITR utility validation rules.
- Whether the issue is a calculation, filing, notice response, rectification, appeal or advisory position.