Business Income Tax Return (ITR) Filing Online - All Business Types

The ITR form depends on your business structure: Proprietorships file ITR-3 (business income with other sources) or ITR-4 (presumptive taxation scheme). Partnership firms and LLPs file ITR-5. Companies (Private Limited, Public Limited, OPC) file ITR-6. Choose the correct form based on your business type and income sources for FY 2025-26 to ensure proper compliance.

For businesses not requiring audit, the due date is July 31, 2026. For businesses requiring tax audit under Section 44AB (proprietorships/partnerships with turnover above ₹1 crore, LLPs above ₹40 lakh, all companies), the due date is September 30, 2026. Businesses with international transactions requiring Form 3CEB have November 30, 2026 deadline. Late filing attracts ₹5,000 penalty under Section 234F plus interest charges.

Tax audit under Section 44AB is mandatory if: (1) Business turnover exceeds ₹1 crore for proprietorships and partnerships, (2) Professional receipts exceed ₹50 lakh, (3) LLP turnover exceeds ₹40 lakh or contribution exceeds ₹25 lakh, (4) All companies irrespective of turnover. Tax audit must be conducted by qualified Chartered Accountant who prepares Form 3CA/3CB (audit report) and Form 3CD (audit particulars).

Proprietorships: Slab rates from 5% to 30% based on income (old regime) or new regime rates. Partnership firms & LLPs: Flat 30% plus 12% surcharge if income exceeds ₹1 crore, plus 4% cess. Companies: 25% (turnover up to ₹400 crore) or 30% (above ₹400 crore) plus surcharge (7-12%) plus 4% cess. Alternative regime rates available under Sections 115BAA (22%) and 115BAB (15%) for eligible companies.

Minimum Alternate Tax (MAT) ensures minimum tax payment when book profit exceeds taxable income. MAT is applicable to: Partnership firms and LLPs at 18.5% of book profit, Companies at 15% of book profit. MAT credit can be carried forward for 15 years and utilized when normal tax exceeds MAT. Proprietorships are not subject to MAT provisions. MAT computation requires adjustment of book profit as per prescribed rules.

Yes, business losses can be carried forward for 8 assessment years and set-off against business income (must file return before due date under Section 139(1)). Speculative business loss can be carried forward for 4 years. Long-term capital loss - 8 years (set-off only against LTCG). Short-term capital loss - 8 years. Unabsorbed depreciation can be carried forward indefinitely. Loss under presumptive taxation (Section 44AD/44ADA) cannot be carried forward.

If estimated tax liability exceeds ₹10,000 in a financial year, advance tax must be paid in four installments: 15% by June 15, 2025; 45% by September 15, 2025; 75% by December 15, 2025; 100% by March 15, 2026. Failure to pay advance tax attracts interest under Section 234B (1% per month on shortfall) and Section 234C (1% per month on deferment). Senior citizens (60+ years) not having business income are exempt from advance tax.

Presumptive taxation (Sections 44AD/44ADA/44AE) allows small businesses to declare income at prescribed rates without maintaining books of accounts. Section 44AD: Businesses with turnover up to ₹2 crore declare 8% of turnover (6% for digital receipts) as income. Section 44ADA: Professionals with receipts up to ₹50 lakh declare 50% as income. Section 44AE: Goods transport business declares fixed income per vehicle. Tax audit not required if opting for presumptive scheme. File ITR-4 form.

Digital Signature Certificate (DSC) is mandatory for: All companies filing ITR-6, Returns requiring audit and total income exceeding ₹5 crore. DSC is optional for proprietorships, partnerships, and LLPs below threshold - they can use EVC (Electronic Verification Code) through Aadhaar OTP, net banking, or bank account. Class 3 DSC issued by licensed certifying authorities (eMudhra, Sify, NSDL) is required. DSC ensures secure and instant filing verification.

Missing deadline attracts: (1) Late filing fees of ₹5,000 under Section 234F (₹1,000 if total income below ₹5 lakh), (2) Interest @ 1% per month under Section 234A on unpaid tax from due date till payment, (3) Interest under Sections 234B and 234C on advance tax shortfall, (4) Loss of carry forward benefit for business losses, (5) Belated return can be filed till 31st December 2026 under Section 139(4) but all penalties apply. (6) Prosecution under Section 276CC for willful non-filing.

DisyTax provides comprehensive business tax filing services: Expert CA assistance for all business types, Complete tax audit under Section 44AB with Form 3CD, Accurate ITR filing (ITR-3/4/5/6), Advance tax planning and payment, TDS return filing and compliance, Form 26AS reconciliation, GST return filing support, Carry forward loss optimization, Tax refund processing, Assessment and scrutiny support, MCA compliance (for LLP/Companies), Digital signature filing. We ensure 100% accurate and timely filing with competitive pricing.

Yes, all registered businesses must file ITR even if dormant or having no income: Companies (including dormant companies under Section 455) must file ITR-6 mandatorily, Partnership firms and LLPs must file ITR-5 even with NIL income, Proprietorships must file if income exceeds basic exemption limit or if required to carry forward losses. File NIL return showing no business transactions. Late filing penalty of ₹1,000 (Section 234F) applies for NIL tax cases. Maintain status as "active" for regulatory compliance.