Tonnage Tax for Shipping explained: this guide covers what Tonnage Tax for Shipping means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
1. What is Tonnage Tax?
Tonnage Tax is a special optional tax regime available to Indian shipping companies — both domestic trade shipping and international shipping. Instead of paying income tax based on actual profits, a qualifying shipping company pays tax based on the notional income derived from the tonnage (carrying capacity) of its ships. This provides certainty, simplicity, and often a lower effective tax burden for shipping businesses with high capital costs.
2. Who Can Opt for Tonnage Tax?
The Tonnage Tax scheme under Sections 135A-135F of ITA 2025 is available to:
- Indian company engaged in the business of operating qualifying ships
- The company must be resident in India
- Ships must be qualifying ships — registered under Merchant Shipping Act, 1958 or flagged in another country but operated by the Indian company
- Option is exercised within 3 months of the start of the Tax Year (or from commencement of business)
- Once opted, the company must continue for at least 10 years — early exit attracts penalties
3. Tonnage Income Computation
Tonnage income is computed based on the net tonnage (NT) of each qualifying ship per day:
| Daily Tonnage (Net Tonnes) | Notional Income per 100 NT per day |
|---|---|
| Up to 1,000 NT | Rs 46 |
| 1,001 to 10,000 NT | Rs 35 |
| 10,001 to 25,000 NT | Rs 28 |
| Above 25,000 NT | Rs 19 |
Annual tonnage income = Daily NT income × 365 days. Tax at normal corporate rate (22-25%) applies on this computed income — regardless of actual profit or loss.
4. Benefits of Tonnage Tax
- Certainty — tax liability known at the start of the year
- Lower effective tax when actual shipping profits are high
- No disallowances — depreciation, interest, operating costs are all irrelevant
- Dividend distributed from tonnage tax profits is not subject to additional DDT
- MAT provisions do not apply to tonnage tax companies for qualifying shipping income
5. Non-Qualifying Income
Only income from qualifying ship operations falls under tonnage tax. Other income of the shipping company — interest, rental, non-ship trading activities — is taxed normally under the Income Tax Act, 2025. Separate books of accounts must be maintained for tonnage and non-tonnage income.
6. Exit Provisions
If a company opts out of the tonnage tax scheme before completing 10 years, the deductions and benefits enjoyed during the tonnage scheme period are withdrawn — and the company is assessed on actual profits for those years as if it had not opted for tonnage tax. This clawback provision makes the tonnage scheme a long-term commitment.
7. Why TaxClue
Tonnage tax requires careful evaluation — is actual profit higher or lower than tonnage income? The 10-year lock-in must be considered. TaxClue advises shipping companies on tonnage tax vs normal tax comparison. Contact us for shipping industry tax advisory under ITA 2025.