Section 54GB: Capital Gains Exemption for Investing in a Startup

Last updated: Sept 2026

Most capital gains exemptions on property sales point toward buying another property. Section 54GB is the exception, redirecting the exemption toward startup investment for up to 1 eligible company, under its own distinct conditions.

• Eligible asset sold: a residential house property, generating long-term capital gains
• Reinvestment target: equity shares of 1 eligible startup company, as defined under the Act
• Investment timeline: before the due date of filing the return for the relevant year
• Asset use condition: the startup must use the invested funds for new plant, machinery, or specified assets within a set period

• Lock-in requirement: the equity shares and the underlying assets purchased must be held for a minimum period, or the exemption is reversed

  
  

Confirm the receiving company genuinely qualifies as an eligible startup under the Act's specific definition before assuming Section 54GB applies to your planned investment.

No, and this is the specific condition that catches many taxpayers off guard. The receiving company must meet the Act's own definition of an eligible startup, which involves specific criteria around incorporation date, nature of business, and other conditions, not simply any newly formed company.

3 specific conditions determine whether a company genuinely qualifies as an eligible startup for this exemption. The realistic conditions a qualifying startup must meet include:

• Incorporation within a specific timeframe relevant to the exemption's current provisions
• Engagement in an eligible business activity, as defined under the startup-related provisions of the Act

• The taxpayer's shareholding and voting rights meeting specific minimum thresholds after the investment

  
  

Investing in a company that seems informally like a "startup" without confirming it meets these specific statutory conditions risks having the exemption disallowed on assessment.

The lock-in condition specifically means this exemption isn't a one-time transaction you can walk away from immediately, since an early exit from the shareholding or the startup's early disposal of the funded assets can reverse the exemption already claimed.

Five steps confirm eligibility and correct claiming before you rely on this exemption in your filing.

1. Confirm your capital gain qualifies as long-term, based on your property's holding period before sale.
2. Verify the receiving company meets the Act's specific eligible startup definition, not just an informal understanding of the term.
3. Complete the equity share investment before the due date of filing your return for the relevant year.
4. Retain documentation confirming the startup's use of funds for qualifying assets within the required period.

5. Claim the exemption in your ITR, maintaining records of the lock-in period's ongoing compliance.

   
   

Skipping the startup eligibility verification at step 2 is the most common reason this exemption gets disallowed later, since an assessing officer will specifically check the receiving company's actual qualifying status.

Consider Ritu, a 42-year-old professional with a household income of Rs. 1.8 lakh a month and a CIBIL Score of 757, selling a residential property for a long-term capital gain of Rs. 45 lakh and investing in an eligible startup.

Because Ritu invested less than her full gain, only the invested portion qualified for exemption, with the remaining Rs. 5 lakh still subject to capital gains tax under standard provisions.

If you're selling one property and financing another while also directing some proceeds toward a startup investment, plan both transactions together for a clear overall picture. Approval timelines can extend where income and asset documentation needs cross-verification, and minimum income thresholds can differ by city. Check your home loan eligibility with your full financial picture mapped out.