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How to save tax on a second income or side hustle

A side hustle, freelance gig or moonlighting income on top of your salary is fully taxable — but how you classify and report it decides how much tax you actually pay. Here's how to save tax on a second income.

Reviewed by CA Harika Chebolu, FCA · Last updated 2026-06-13

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  1. 1. Classify the income correctly
  2. 2. Claim the expenses of earning it
  3. 3. Reconcile TDS from your side clients
  4. 4. Pay advance tax on the extra
  5. 5. Combine both incomes in one return
  6. Common questions

Quick answer

Side income is taxable, but classifying it right, claiming expenses, and paying advance tax keeps the tax low and clean. Here's how.

1. Classify the income correctly

A second income is usually either business/professional income (freelancing, consulting, a side business) or other income (occasional, one-off earnings). Business or professional income lets you claim expenses against it; getting the classification right is the first lever, because it decides what you can deduct.

2. Claim the expenses of earning it

If your side income is business or professional, the costs of earning it are deductible — equipment, software, internet, travel, a share of home-office costs. For freelancers, the 44ADA presumptive scheme (declare 50% of receipts within Rs 50 lakh) can be a simple, low-tax way to handle it.

3. Reconcile TDS from your side clients

Clients and platforms often deduct TDS on side income, which appears in your 26AS/AIS. Claim full credit for it against your final tax, and report all the income the AIS shows — combining it with your salary correctly.

4. Pay advance tax on the extra

Your salary TDS won't cover the tax on side income, so a second income often creates advance-tax exposure. If your total tax after TDS will cross Rs 10,000, pay the extra in the advance-tax instalments to avoid 1%-a-month interest under 234B/234C.

5. Combine both incomes in one return

File one return that includes your salary and your side income together, applying the standard deduction and 80C limit once across the total. Reporting them in isolation, or leaving side income off, is what produces wrong numbers and notices.

Common questions

1Is income from a side hustle taxable?

Yes — second income is fully taxable, added to your salary at your slab. How you classify it (business/professional vs other income) decides what expenses you can deduct against it.

2Can I claim expenses on my freelance side income?

Yes, if it's business or professional income — equipment, software, internet and travel are deductible , or you can use the 44ADA presumptive scheme to declare 50% of receipts within Rs 50 lakh.

3Do I need to pay advance tax on a second income?

Often yes — salary TDS won't cover it. If your total tax after TDS crosses Rs 10,000, pay the extra in the advance-tax instalments to avoid 234B/234C interest.

Earning on the side alongside a salary? Write to the firm and we'll classify it right and keep your advance tax clean.