How to File Income Tax Returns for a Business in India
Every business registered in India — whether a sole proprietorship, partnership, LLP, or company — must file an income tax return annually. The applicable form and audit requirement depend on the entity type and turnover. Filing accurately and on time avoids interest, penalties, and scrutiny notices.
Before you start
- Books of accounts for the financial year (April 1 – March 31)
- Bank statements for all business accounts
- GST returns filed (GSTR-1, GSTR-3B) for cross-verification
- TDS certificates (Form 16A) received from clients
- Investment and depreciation schedules
- Tax Audit Report (Form 3CD) if turnover exceeds ₹1 crore (goods) or ₹50 lakh (services)
Step-by-step
Close Books and Prepare Financial Statements
Finalise the Profit & Loss Account and Balance Sheet for the financial year ending March 31. Ensure all income, expenses, and depreciation are correctly recorded under the applicable accounting standards.
Determine Tax Audit Applicability
If your business turnover exceeds ₹1 crore (or ₹50 lakh for professionals), a Tax Audit under Section 44AB is mandatory. The auditor must file Form 3CA/3CB and Form 3CD on the Income Tax portal before you file the ITR.
Calculate Taxable Income and Advance Tax
Compute total taxable income after allowable deductions and set-offs. If Advance Tax paid (due in June, September, December, March) is less than actual tax liability, interest under Sections 234B and 234C applies — factor this in.
Select the Correct ITR Form
Use ITR-3 for sole proprietors and partners in a firm; ITR-5 for LLPs and firms; ITR-6 for companies (other than those claiming Section 11 exemption). Filing in the wrong form invalidates the return.
E-File on the Income Tax Portal
Log in to incometax.gov.in with your PAN credentials. Upload the pre-filled JSON data, complete all schedules (income, deductions, foreign assets, TDS), and submit. For companies and audit cases, the deadline is October 31; others are July 31.
Verify the Return (ITR-V)
After submission, e-verify the return within 30 days using Aadhaar OTP, net banking, or a Digital Signature Certificate. Without verification, the return is treated as not filed. Download the acknowledgment (ITR-V) for your records.
Common mistakes to avoid
- Missing the Tax Audit deadline (September 30) — the ITR cannot be filed until the audit is complete, and a late audit attracts a penalty of ₹1.5 lakh.
- Not reconciling GST turnover with income tax turnover — the department cross-matches both; discrepancies trigger scrutiny notices.
- Forgetting to carry forward losses — if not reported in the ITR filed on time, losses (business, capital) cannot be set off in future years.
- Filing without verifying — an unverified ITR is as good as not filed; the department will send a defective-return notice.
Frequently asked questions
What is the penalty for late filing of ITR?
A late fee of ₹5,000 applies if filed after the due date but before December 31; ₹10,000 if filed after December 31. For taxpayers with income up to ₹5 lakh, the fee is capped at ₹1,000.
Can a loss be carried forward if the ITR is filed late?
No. Losses under the heads 'Business & Profession' and 'Capital Gains' can only be carried forward if the return is filed on or before the original due date.
What is the presumptive taxation scheme?
Under Section 44AD, businesses with turnover up to ₹3 crore can declare 8% (6% for digital receipts) of turnover as profit without maintaining detailed books, avoiding the tax audit requirement if they meet the threshold conditions.
Is a company ITR different from an individual ITR?
Yes. Companies file ITR-6 and must use a DSC for e-verification. The tax rate for domestic companies is generally 22% (15% for new manufacturing companies under Section 115BAB), unlike individuals whose rates are slab-based.
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