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Business Tax Filing in India – Income Tax Return Filing for Companies, LLPs, Partnership Firms & Proprietorships with Tax Audit, Advance Tax & ROC Compliance
Business tax filing in India is a multi-layered annual compliance involving Income Tax Return (ITR) filing under the Income-tax Act, 1961, tax audit under Section 44AB, advance tax payments under Section 208, TDS / TCS reconciliation, GST return integration, and — for companies and LLPs — parallel ROC filings under the Companies Act, 2013 and LLP Act, 2008. Every business entity registered in India — whether a Private Limited Company, One Person Company (OPC), Limited Liability Partnership (LLP), Partnership Firm, Proprietorship, or Section 8 Company — is obligated to file an annual income tax return regardless of profit, loss, or turnover, and non-filing attracts late fees under Section 234F, interest under Sections 234A / 234B / 234C, prosecution under Section 276CC for prolonged defaults, and disqualification of carry-forward of business losses under Section 80.
The applicable ITR form, tax rate, audit threshold, and filing due date vary significantly with the business structure. Companies file ITR-6 (or ITR-7 for Section 8) at corporate tax rates of 22% under Section 115BAA (concessional regime without exemptions) or 25%–30% under the regular regime; new manufacturing companies enjoy 15% under Section 115BAB. LLPs and Partnership Firms file ITR-5 at a flat 30% plus surcharge and cess. Proprietorships are taxed in the hands of the individual proprietor under ITR-3 / ITR-4 at slab rates — old or new regime under Section 115BAC. Tax audit under Section 44AB is triggered at ₹1 crore turnover (₹10 crore where 95% receipts and payments are digital), and presumptive taxation under Sections 44AD, 44ADA, and 44AE offers simplified compliance for small businesses and professionals up to specified turnover thresholds. Add layered obligations — TDS returns (Form 26Q / 24Q), TCS returns (Form 27EQ), GST returns (GSTR-1, 3B, 9, 9C), MCA filings (AOC-4, MGT-7, DIR-3 KYC), and transfer pricing reports (Form 3CEB) — and business tax compliance becomes a year-round, multi-disciplinary engagement.
22% / 25% / 30%
Corporate Tax Rates
Sec 44AB
Tax Audit Threshold
31 Oct / 30 Nov
ITR Due Dates (Audit / TP)
Sec 234F
Late Filing Fee
Provisions We Work Under
Income-tax Act, 1961
Sec 139 – ITR Filing
Sec 44AB – Tax Audit
Sec 44AD / 44ADA – Presumptive
Sec 115BAA / 115BAB
Sec 115BAC – New Regime
Sec 208 – Advance Tax
Companies Act, 2013
LLP Act, 2008
CGST Act, 2017
Business Tax Filing by Entity Type
Pvt Ltd / OPC
Private Limited Company ITR
Pvt Ltd companies and OPCs file ITR-6 at 22% under Sec 115BAA (without exemptions) or 25%/30% under the regular regime; new manufacturing companies at 15% under Sec 115BAB.
- Form ITR-6 mandatory
- Tax audit if turnover > ₹1 cr
- MAT under Sec 115JB
- Form 3CA-3CD audit report
- AOC-4 + MGT-7 with MCA
- DIR-3 KYC for directors
LLP
LLP Tax Return Filing
LLPs file ITR-5 at flat 30% plus surcharge and cess; tax audit threshold ₹1 crore; alternate minimum tax (AMT) under Sec 115JC at 18.5% on adjusted total income.
- Form ITR-5 mandatory
- Flat 30% rate
- AMT under Sec 115JC
- Form 11 + Form 8 with MCA
- Partner remuneration limits
- DPIN KYC compliance
Partnership Firm
Partnership Firm ITR
Registered and unregistered partnership firms file ITR-5 at flat 30%; partner remuneration and interest deductible subject to Sec 40(b) limits; audit and presumptive options apply.
- Form ITR-5
- Sec 40(b) – partner pay limit
- Presumptive Sec 44AD eligible
- Audit if turnover > ₹1 cr
- Partnership deed required
- PAN in firm's name
Proprietorship
Proprietorship Tax Return
Proprietor's business income merges with personal income; ITR-3 (regular) or ITR-4 (presumptive); slab rates with old / new regime choice under Sec 115BAC.
- ITR-3 / ITR-4 (Sugam)
- Slab rates – old / new
- Presumptive Sec 44AD / 44ADA
- Audit if turnover > ₹1 cr
- Personal PAN of proprietor
- Linked to GST registration
Professional
Professional & Freelancer ITR
Doctors, lawyers, CAs, architects, consultants — presumptive taxation under Sec 44ADA at 50% deemed profit on gross receipts up to ₹75 lakhs (with 95% digital receipts).
- Sec 44ADA – 50% presumptive
- Threshold ₹50L / ₹75L
- ITR-4 (Sugam) form
- No books of accounts
- Advance tax 15 March
- GST if > ₹20L receipts
Startup
Startup & DPIIT-Recognised
DPIIT-recognised startups can claim Section 80-IAC tax holiday for 3 consecutive years out of 10; angel tax exemption under Sec 56(2)(viib) with prescribed conditions.
- Sec 80-IAC – 100% tax holiday
- 3 of 10 years deduction
- Angel tax exemption
- Carry-forward losses Sec 79
- ITR-6 + Form 3CA-3CD
- ESOP perquisite deferral
Key Business Tax Concepts at a Glance
Sec 44AB
Tax Audit Trigger
Tax audit mandatory if business turnover exceeds ₹1 crore (₹10 crore where 95% of receipts and payments are digital) or professional gross receipts exceed ₹50 lakhs.
Form 3CA / 3CB
Form 3CD
Sec 115BAA
22% Corporate Rate
Domestic companies opting for Sec 115BAA pay 22% (effective ~25.17% with surcharge and cess) without claiming most exemptions or carry-forward of MAT credit.
Optional Regime
Form 10-IC
Sec 115BAB
15% Manufacturing Rate
New domestic manufacturing companies set up after Oct 2019 and commencing production by Mar 2024 (extended) pay 15% (effective ~17.16%) — subject to strict conditions.
New Setup Only
Form 10-ID
Sec 44AD
Presumptive Business Tax
Small businesses with turnover up to ₹3 crores (with 95% digital receipts) — presumptive income at 8% (6% for digital receipts); no books of accounts required; ITR-4.
Threshold ₹2cr / ₹3cr
8% / 6% Profit
Sec 208
Advance Tax
Mandatory if tax liability exceeds ₹10,000 in a year — 4 instalments: 15% (15 Jun), 45% (15 Sep), 75% (15 Dec), 100% (15 Mar); interest under Sec 234B / 234C on shortfall.
4 Instalments
Interest Sec 234B/C
Sec 115JB
MAT for Companies
Minimum Alternate Tax at 15% on book profits — applies where regular tax is lower than MAT; MAT credit carry-forward up to 15 years; not applicable if Sec 115BAA / 115BAB opted.
15% Book Profit
Form 29B
Sec 234F
Late Filing Fee
₹5,000 for ITR filed after due date but before 31 Dec; ₹1,000 if total income up to ₹5 lakhs; loss of carry-forward of business and capital losses (except house property).
₹5,000 / ₹1,000
Loss Carry-Forward Lost
Form 3CEB
Transfer Pricing Report
Mandatory for entities with international transactions or specified domestic transactions exceeding ₹20 crores — TP study, Form 3CEB by CA, ITR due date extended to 30 Nov.
Sec 92E
CA Certified
Our Business Tax Filing Services
Private Limited Company ITR Filing
End-to-end ITR-6 preparation and filing for Pvt Ltd companies and OPCs — including Sec 115BAA / 115BAB regime selection, MAT computation, Form 10-IC / 10-ID, and audit coordination.
LLP Income Tax Return
ITR-5 filing for LLPs with computation of taxable income, AMT under Sec 115JC, partner remuneration analysis, and coordination with MCA Form 8 / Form 11 annual filings.
Partnership Firm Tax Filing
ITR-5 filing for registered and unregistered partnership firms — Sec 40(b) compliance on partner remuneration and interest, presumptive option evaluation, and audit support.
Proprietorship Tax Return
ITR-3 / ITR-4 filing for sole proprietors — old vs new regime comparison under Sec 115BAC, presumptive taxation analysis, and integration with GST and personal income heads.
Tax Audit Under Section 44AB
Statutory tax audit, Form 3CA-3CD / 3CB-3CD preparation, clause-by-clause reporting, and e-filing on the income tax portal — coordinated with statutory and GST audits.
Presumptive Taxation Advisory
Section 44AD / 44ADA / 44AE eligibility analysis, threshold tracking, conversion-out planning, and ITR-4 (Sugam) filing for small businesses, professionals, and transporters.
Advance Tax Computation
Quarterly advance tax computation and challan payment under Sec 208 — managing 15 Jun / 15 Sep / 15 Dec / 15 Mar instalments to avoid Sec 234B / 234C interest.
TDS & TCS Return Filing
Quarterly TDS (Form 24Q / 26Q / 27Q) and TCS (Form 27EQ) return filing, Form 16 / 16A issuance, lower deduction certificate (Form 13), and TRACES portal correction handling.
GST Return & Reconciliation
GSTR-1, 3B, 9, 9C filing; ITC reconciliation with GSTR-2B; e-invoicing compliance; GST audit; and turnover reconciliation between GST returns and ITR for consistency.
MCA / ROC Annual Compliance
AOC-4 (financial statements), MGT-7 / 7A (annual return), DIR-3 KYC, LLP Form 8 / 11, board meeting compliance, and director / partner KYC management with MCA21 portal.
Transfer Pricing & Form 3CEB
Transfer pricing study, Arm's Length Price benchmarking, Form 3CEB issuance by CA under Sec 92E, Master File / CbCR (Form 3CEAA / 3CEAD) for qualifying multinationals.
Tax Notice & Assessment Support
Reply to Sec 142(1), 143(2), 148 notices; defective return rectification under Sec 139(9); refund follow-up; and faceless assessment representation under Sec 144B.
When You Need Business Tax Filing Support
New Company / LLP Incorporation
First-year ITR filing, regime selection (Sec 115BAA / 115BAB), accounting setup, advance tax registration, and inaugural ROC compliance for newly registered entities.
Turnover Crossing Audit Threshold
Business turnover crossing ₹1 crore / ₹10 crore — tax audit kicks in under Sec 44AB; Form 3CD compliance; transition out of presumptive regime; books of accounts mandate.
Switching Tax Regime
Company evaluating shift to 22% Sec 115BAA — one-way election, MAT credit forfeiture analysis, exemption / deduction trade-off; Form 10-IC filing before due date.
Loss Carry-Forward Year
Business in loss — timely ITR filing essential to carry forward business losses (8 years) and depreciation (indefinite); late filing forfeits carry-forward except house property.
International Transactions
Cross-border related-party transactions — transfer pricing study, Form 3CEB, ALP documentation, MAP / APA evaluation; ITR due date extended to 30 Nov for TP cases.
Startup Tax Holiday Claim
DPIIT-recognised startup claiming Sec 80-IAC tax holiday — eligibility verification, audit report Form 10CCB, ESOP perquisite deferral, angel tax exemption documentation.
Income Tax Notice / Scrutiny
Sec 143(2) scrutiny, Sec 148 reassessment, Sec 142(1) inquiry, defective return Sec 139(9) — faceless reply preparation, evidence compilation, hearing representation.
GST & Income Tax Mismatch
Turnover difference between GSTR returns and ITR — reconciliation, suspense entries, AIS / TIS review; Sec 143(1) intimation rectification under Sec 154 / response on portal.
Documents Needed for Business Tax Filing
Entity & Identity Documents
- PAN of business / proprietor
- Certificate of Incorporation
- MOA & AOA / LLP / Partnership deed
- GST registration certificate
- Director / partner PAN & Aadhaar
- DSC of authorised signatory
- Bank account details & statements
Financial & Accounting Records
- Audited financial statements
- P&L, Balance Sheet, Cash Flow
- Trial balance & ledger
- Tax audit report (Form 3CA / 3CB / 3CD)
- Fixed asset register & depreciation
- Inventory valuation report
- Loan / borrowing schedules
Tax & Compliance Records
- Form 26AS / AIS / TIS
- Advance tax challans
- TDS / TCS certificates
- GSTR-1 / 3B / 9 / 9C copies
- Form 16 / 16A issued
- Transfer pricing study (if applicable)
- Form 3CEB & Sec 92E records
Our Business Tax Filing Process
1
Data Collection
Gather books, bank statements, GST returns, Form 26AS / AIS, TDS certificates, and prior-year ITR for review and reconciliation.
2
Tax Computation
Compute taxable income, regime selection (115BAA / 115BAC), MAT / AMT, advance tax credit, and final liability with surcharge and cess.
3
Tax Audit
Conduct Sec 44AB tax audit if applicable; issue Form 3CA-3CD / 3CB-3CD; reconcile turnover with GST and bank records.
4
ITR Filing & Verification
File ITR-3 / 4 / 5 / 6 on income tax portal with DSC; e-verify; download ITR-V / acknowledgement; submit forms 10-IC / 10-ID if applicable.
5
Post-Filing Support
Refund tracking, intimation Sec 143(1) reconciliation, notice handling, ROC filing coordination, and next-year tax planning.
Why Choose Us for Business Tax Filing
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All entity types — Pvt Ltd, LLP, Firm, Proprietor
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CA-led tax audit & Form 3CD expertise
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115BAA / 115BAB / 115BAC regime planning
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Integrated GST + ITR + ROC filing
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Advance tax & TDS optimisation
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Startup Sec 80-IAC & angel tax support
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Transfer pricing & Form 3CEB filing
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Faceless assessment & notice representation
FAQs on Business Tax Filing in India
Which ITR form should my business file and what is the due date?
The applicable ITR form depends on the legal structure of the business. Private Limited Companies, OPCs, and Public Limited Companies file ITR-6 (except Section 8 / charitable trusts which file ITR-7). LLPs and partnership firms — both registered and unregistered — file ITR-5. Sole proprietors file ITR-3 if they maintain regular books or have audit requirements, or ITR-4 (Sugam) if they opt for presumptive taxation under Sections 44AD, 44ADA, or 44AE. Hindu Undivided Families (HUFs) running a business file ITR-3 / ITR-4. Due dates for AY 2025-26 (FY 2024-25): 31 July 2025 — non-audit cases (small proprietors / firms with turnover below threshold); 31 October 2025 — audit cases under Sec 44AB and companies (ITR-6); 30 November 2025 — entities with international transactions or specified domestic transactions requiring transfer pricing report (Form 3CEB / Sec 92E). Belated returns under Sec 139(4) can be filed up to 31 December 2025 with a late fee under Sec 234F (₹5,000 / ₹1,000 if income up to ₹5L) and interest under Sec 234A. Updated returns under Sec 139(8A) — ITR-U — allow correction up to 48 months after the assessment year end with additional tax of 25%–70% depending on the timing.
When is tax audit mandatory under Section 44AB and what is Form 3CD?
Tax audit under Section 44AB is mandatory in the following situations: (a) Business — if total sales, turnover, or gross receipts exceed ₹1 crore in the financial year; threshold is enhanced to ₹10 crores where aggregate cash receipts and cash payments do not exceed 5% of total receipts and payments respectively (i.e., 95%+ digital transactions); (b) Profession — if gross receipts exceed ₹50 lakhs; (c) Presumptive opt-out — if a person who earlier opted for Section 44AD presumptive taxation declares income lower than 8% / 6% in any of the next 5 years and total income exceeds the basic exemption, audit is mandatory and Sec 44AD lock-out applies; similarly for Sec 44ADA (50%) and Sec 44AE (transporters); (d) Specified businesses under Sec 44AE — heavy goods vehicles operators where presumptive income is not declared. Form 3CD is the detailed audit report annexed to Form 3CA (where statutory audit is also required, e.g., companies, LLPs above ₹40L turnover) or Form 3CB (other cases). It contains 44 clauses covering: nature of business, books of accounts maintained, method of accounting, depreciation under Sec 32, payments disallowed under Sec 40A(3) / Sec 40(a) / Sec 43B, deemed income, donations, loans accepted / repaid in cash (Sec 269SS / 269T), GST turnover reconciliation, TDS compliance, and transfer pricing references. Tax audit report must be uploaded by the CA on the income tax portal and accepted by the taxpayer before ITR filing. Late filing of audit report attracts penalty under Sec 271B — 0.5% of turnover, capped at ₹1,50,000.
Should my company opt for the 22% concessional tax regime under Section 115BAA?
Section 115BAA offers a concessional corporate tax rate of 22% (effective approximately 25.17% with surcharge of 10% and cess of 4%) to domestic companies. The decision involves a careful trade-off: Benefits — flat lower rate; no MAT applicability under Sec 115JB; simpler compliance without exemption optimisation. Costs — surrender of: deductions under Sec 10AA (SEZ), Sec 32(1)(iia) additional depreciation, Sec 33AB / 33ABA, Sec 35 scientific research, Sec 35AD specified business, Sec 35CCC / 35CCD, Chapter VI-A deductions other than 80JJAA / 80M, set-off of brought-forward losses attributable to the above deductions, and any unabsorbed MAT credit. Decision framework: (a) If the company has minimal exemption claims and no significant MAT credit balance, Sec 115BAA is generally beneficial — the saving of approximately 5–9% over the regular 30% rate compounds materially over years; (b) If the company has substantial Sec 80-IAC startup deduction, SEZ exemption, R&D weighted deduction, or accumulated MAT credit, regular regime may be more beneficial in the short term; (c) The election is one-way and once made, it cannot be reversed in any subsequent year — careful long-term modelling is essential. Election is made by filing Form 10-IC online before the due date of filing ITR for the first year of opt-in. New manufacturing companies should evaluate the 15% rate under Sec 115BAB instead — substantially better but conditional on commencement of manufacturing by 31 March 2024 (subsequently extended) and other restrictions. Our practice runs a 5-year financial model comparing both regimes before recommending the election.
What is presumptive taxation under Sections 44AD / 44ADA and who can opt for it?
Presumptive taxation simplifies compliance for small businesses and professionals by deeming a fixed percentage of turnover as taxable income — eliminating the need to maintain regular books of accounts under Sec 44AA and the requirement of tax audit under Sec 44AB (subject to conditions). Section 44AD — applicable to businesses (excluding professionals, agencies, commission businesses, and businesses with turnover exceeding the threshold). Eligible: resident individuals, HUFs, partnership firms (excluding LLPs); turnover threshold ₹2 crores (₹3 crores where 95%+ receipts are digital — w.e.f. AY 2024-25). Deemed income: 8% of turnover (6% for digital receipts). Section 44ADA — applicable to specified professionals: legal, medical, engineering, architectural, accountancy, technical consultancy, interior decoration, and other notified professions. Eligible: resident individuals and partnership firms (excluding LLPs); gross receipts threshold ₹50 lakhs (₹75 lakhs where 95%+ receipts are digital — w.e.f. AY 2024-25). Deemed income: 50% of gross receipts. Section 44AE — applicable to operators of goods carriages owning up to 10 vehicles; deemed income ₹1,000 per ton per month for heavy goods vehicles (above 12 tons) and ₹7,500 per vehicle per month for others. ITR-4 (Sugam) is filed; advance tax payable in single instalment by 15 March (instead of 4 instalments). Lock-out rule: if a person opts out of Sec 44AD in any year after opting in, they cannot re-opt for 5 subsequent years and audit becomes mandatory. Limitations: presumptive opt-in disallows further deductions for actual expenses; loss cannot be claimed; partner remuneration in firm not deductible separately. Our practice evaluates whether actual book-based filing or presumptive is more beneficial based on the actual margin profile.
How is advance tax computed and what are the consequences of underpayment?
Advance tax is mandatory under Section 208 for any taxpayer (other than senior citizens not having business income) whose tax liability after TDS exceeds ₹10,000 in a financial year. Schedule of instalments for non-presumptive taxpayers: 15% of total tax — by 15 June; 45% (cumulative) — by 15 September; 75% (cumulative) — by 15 December; 100% — by 15 March. For presumptive taxpayers under Sec 44AD / 44ADA — single instalment of 100% by 15 March. Computation involves: (a) projected total income for the year — including business profits, capital gains (estimated), other income; (b) tax at applicable rates including surcharge and cess; (c) less: TDS deducted / TCS collected; (d) net advance tax payable. Challans paid using ITNS 280 with appropriate code (100 for advance tax; 300 for self-assessment after year-end). Consequences of shortfall: Section 234B — interest at 1% per month from 1 April of AY till date of self-assessment payment if advance tax paid is less than 90% of assessed tax; Section 234C — interest at 1% per month for shortfall in each instalment based on cumulative thresholds (12% / 36% / 75% / 100%); Section 234A — interest at 1% per month from due date of ITR till actual filing if return not filed on time. Best practice: estimate income at the start of the year, revise quarterly based on actual results, and pay each instalment punctually; for capital gains realised mid-year, advance tax is required only from the next instalment onwards. Our practice runs quarterly cash-flow-driven advance tax projections to balance liquidity with interest avoidance.
What happens if I file my business ITR late or fail to file at all?
Late or non-filing of business ITR triggers a cascade of consequences: (a) Late filing fee under Sec 234F — ₹5,000 if filed after due date but before 31 December of AY; ₹1,000 if total income up to ₹5 lakhs; (b) Interest under Sec 234A — 1% per month on tax liability (after TDS / advance tax) from the due date till the actual date of filing; (c) Loss of carry-forward — business loss, capital loss (short-term and long-term), and speculation loss cannot be carried forward to set off in future years (only house property loss can be carried forward despite late filing); (d) Defective return under Sec 139(9) — if ITR is filed without all schedules / audit report uploaded; opportunity to rectify within 15 days; (e) Belated return under Sec 139(4) — can be filed up to 31 December of the relevant AY; (f) Updated return ITR-U under Sec 139(8A) — available for up to 48 months from end of AY but with additional tax of 25% (within 12 months), 50% (12-24 months), 60% (24-36 months) or 70% (36-48 months) on the tax-and-interest payable; (g) Prosecution under Section 276CC — wilful failure to furnish return where tax due exceeds ₹10,000 (post-TDS) is punishable with imprisonment from 3 months to 7 years and fine, depending on the magnitude of evasion; (h) Scrutiny / assessment risk — non-filers are flagged for scrutiny under Section 142(1) / 148 with reverse onus on the taxpayer; (i) Refund denied — refunds claimed in belated returns are processed but interest under Sec 244A is paid only from date of filing; (j) For companies and LLPs — non-filing also triggers MCA struck-off proceedings under Section 248 and director DIN deactivation. Our priority for delayed clients is to file the belated / updated return at the earliest, structure a payment plan for tax dues, and assess prosecution exposure separately.
What additional ROC / MCA compliance is required alongside business tax filing?
For Companies and LLPs, ITR filing is only one part of annual compliance — parallel ROC / MCA filings under the Companies Act, 2013 and LLP Act, 2008 are equally mandatory. For Private Limited Companies / OPCs: (a) Form AOC-4 — financial statements with Board's report and auditor's report; due within 30 days of AGM (typically 29 October); (b) Form MGT-7 / MGT-7A (small companies and OPC) — annual return; due within 60 days of AGM (typically 28 November); (c) Form ADT-1 — auditor appointment / re-appointment; within 15 days of AGM; (d) DIR-3 KYC — every director annually by 30 September; (e) DPT-3 — return of deposits / loans; by 30 June; (f) MSME-1 — half-yearly return for outstanding dues to MSME suppliers above 45 days. For LLPs: (a) Form 11 — annual return; due 30 May; (b) Form 8 — statement of account and solvency; due 30 October; (c) DPIN KYC for designated partners. Penalties for non-filing: AOC-4 / MGT-7 — ₹100 per day per form with no upper cap (potentially running into lakhs); LLP Form 8 / 11 — ₹100 per day per form similarly uncapped; DIR-3 KYC default — DIN deactivation and ₹5,000 reactivation fee; multiple defaults can lead to MCA-initiated struck-off under Sec 248 of Companies Act. Tax filing and ROC filing must be coordinated — the financial statements signed for AGM (for Pvt Ltd) form the basis of both ITR and AOC-4. Our compliance calendar tracks all entity-level deadlines (income tax, GST, ROC, professional tax, EPF / ESI) on a single dashboard for our clients.
Right Form. Right Regime. Right On Time.
Partner with our chartered accountants and tax experts for end-to-end business tax filing services in India — ITR filing for companies, LLPs, firms, and proprietorships, tax audit, advance tax, GST integration, ROC compliance, and faceless assessment representation.
Talk to a Business Tax Expert