What is the due date for ITR filing in Mumbai?

ITR-1 and ITR-2 due date is 31 July. ITR-3 and ITR-4 non-audit due date is 31 August from FY 2025-26 onwards. Audit cases due 31 October. Late filing attracts Rs 5,000 penalty for income above Rs 5 lakh or Rs 1,000 for income up to Rs 5 lakh plus interest under Section 234A.

Which ITR form should I file?

ITR-1 Sahaj for salaried with income up to Rs 50 lakh from salary one house property and other sources. ITR-2 for capital gains foreign income or multiple properties. ITR-3 for business or professional income. ITR-4 Sugam for presumptive taxation under Section 44AD or 44ADA.

Where is the Income Tax office in Mumbai?

Principal Chief Commissioner of Income Tax Mumbai is at Aayakar Bhavan M.K. Road Churchgate Mumbai 400020. Additional offices at Old CGO Annexe Building Maharshi Karve Road New Marine Lines Mumbai 400020. Patron Marine Lines office is walking distance from both locations.

Is ITR filing mandatory if income is below Rs 12 lakh?

Yes. ITR filing is mandatory if income exceeds the basic exemption limit of Rs 4 lakh under the new regime or Rs 2.5 lakh under the old regime even if tax payable is zero after rebate. A nil return serves as proof of income for loans visas and financial credibility.

What is the penalty for late ITR filing?

Late filing attracts Rs 5,000 under Section 234F if income exceeds Rs 5 lakh or Rs 1,000 if income is Rs 5 lakh or below. Interest at 1% per month under Section 234A is charged on unpaid tax. Current-year losses cannot be carried forward if return is filed late.

What is the difference between old and new tax regime?

New regime offers lower slab rates with zero tax up to Rs 12 lakh but disallows most deductions like 80C 80D HRA and home loan interest. Old regime allows all deductions but has higher base rates. Mumbai professionals with significant deductions may save more under old regime.

How long does it take to get a tax refund?

Tax refunds are typically processed within 20 to 45 days from e-verification if the return is filed accurately and all TDS entries match. Delays occur with discrepancies or incorrect bank details.

Can NRIs file ITR in Mumbai?

Yes. NRIs with income sourced from India including rental income from Mumbai property, capital gains, interest income, or business income must file ITR. DTAA benefits can be claimed to avoid double taxation. Patron handles NRI ITR filing with correct residency status determination.

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Income Tax Return (ITR) Filing in Mumbai: CA-Managed Tax Filing Under the Income Tax Act

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Documents: PAN, Aadhaar, Form 16, Form 26AS/AIS, bank statements, investment proofs, rent receipts, capital gains statements

Fees: ITR filing from Rs 499 (salaried ITR-1) | Rs 2,999 (business ITR-3) | Rs 4,999 (capital gains/NRI ITR-2)

Due Dates: ITR-1/ITR-2: 31 July | ITR-3/ITR-4 (non-audit): 31 August | Audit cases: 31 October

Zero Tax: New regime: Zero tax up to Rs 12 lakh (Rs 12.75 lakh for salaried with standard deduction)

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Income Tax Return (ITR) Filing in Mumbai - Overview

📌 TL;DR - Income Tax Return (ITR) Filing in Mumbai Services at a Glance

Income Tax Return (ITR) filing is the annual process of declaring your income, claiming deductions, computing tax liability, and reporting it to the Income Tax Department via the e-filing portal at incometax.gov.in. Mumbai is home to the Principal Chief Commissioner of Income Tax (Pr. CCIT) at Aayakar Bhavan, M.K. Road, Churchgate, Mumbai 400020. Under the new tax regime (default), income up to Rs 12 lakh is effectively tax-free due to the Section 87A rebate, extending to Rs 12.75 lakh for salaried with standard deduction. Due dates: ITR-1/ITR-2 by 31 July, ITR-3/ITR-4 (non-audit) by 31 August, audit cases by 31 October.

Mumbai generates India's highest per-capita income tax revenue. The city's diverse income landscape includes the highest-paid salaried professionals at BKC, Nariman Point, and Lower Parel; business owners at Crawford Market, Andheri MIDC, and Bhiwandi; tech freelancers at Powai; HNIs at Malabar Hill and South Mumbai; rental income earners across premium property markets; and NRIs with Mumbai-sourced income. Learn more about Income Tax Return Filing across India.

Each category requires a different ITR form, a different regime analysis, and different deduction strategies. Patron Accounting's Marine Lines office - walking distance from Aayakar Bhavan at Churchgate - provides CA-managed ITR filing covering form selection, old-versus-new regime optimisation, Form 26AS and AIS reconciliation, advance tax computation, and post-filing notice handling. After filing, consider Tax Planning for year-round optimisation.

Content is reviewed quarterly for accuracy.

What Is Income Tax Return (ITR) Filing?

Income Tax Return filing is the process of declaring your total income earned during a financial year, claiming applicable deductions and exemptions, computing net tax liability, and submitting this information to the Income Tax Department electronically via the e-filing portal at incometax.gov.in. The return must be filed annually by every individual, HUF, company, partnership firm, LLP, or other entity whose income exceeds the basic exemption limit.

Under the new tax regime (default from FY 2025-26), the basic exemption limit is Rs 4 lakh. With the enhanced rebate under Section 87A (Rs 60,000), individuals earning up to Rs 12 lakh pay zero tax. For salaried individuals claiming the Rs 75,000 standard deduction, the effective zero-tax ceiling extends to Rs 12.75 lakh. The old tax regime remains available for those who benefit more from deductions under Sections 80C, 80D, 24(b), and other provisions.

The Income Tax Act 2025, effective from 1 April 2026, replaces the 1961 Act with a simplified statute - 536 sections reorganised into 23 chapters, approximately 40% reduction in legislative volume, and introduction of the unified Tax Year concept. For Mumbai taxpayers filing returns for FY 2025-26 (AY 2026-27), the existing 1961 Act still applies. From FY 2026-27 onwards, the new Act governs all filings. Patron ensures Mumbai clients are prepared for both transition periods.

Key Terms for Income Tax Return (ITR) Filing in Mumbai:

ITR: Income Tax Return - annual declaration of income filed on incometax.gov.in.

Form 26AS: Tax Credit Statement showing all TDS/TCS deducted against your PAN.

AIS: Annual Information Statement - comprehensive record of financial transactions.

Section 87A Rebate: Rs 60,000 rebate making income up to Rs 12 lakh tax-free under new regime.

ITR-1 (Sahaj): For salaried individuals with income up to Rs 50 lakh.

Aayakar Bhavan: Pr. CCIT Mumbai HQ at M.K. Road, Churchgate, Mumbai 400020.

Mumbai Tax Hub ITR Filed

Who Needs to File ITR in Mumbai?

Salaried Professionals (BKC, Nariman Point, Lower Parel, Andheri): Mumbai has India's highest concentration of high-salary professionals. Even if TDS is deducted, ITR filing is mandatory if income exceeds the basic exemption limit. Need ITR-1 for income up to Rs 50 lakh; ITR-2 for capital gains or foreign income.

Business Owners and Traders (Crawford Market, Andheri MIDC, Bhiwandi): File ITR-3 (actual income) or ITR-4 (presumptive taxation under 44AD for businesses with turnover up to Rs 2 crore, or 44ADA for professionals up to Rs 75 lakh). Requires GST reconciliation with ITR and advance tax computation.

Freelancers and Consultants (Powai, BKC, Andheri): Mumbai's growing freelance economy needs ITR-3 or ITR-4. Must track TDS from multiple clients (Section 194J), reconcile with Form 26AS, and compute advance tax quarterly.

Investors and HNIs (Nariman Point, Malabar Hill, South Mumbai): Capital gains from equity, mutual funds, real estate require ITR-2 or ITR-3. ESOP taxation, dividend income, and complex portfolio structures. NRIs with Mumbai property income need specialised filing with DTAA benefit claims.

Rental Income Earners: Property owners in BKC, South Mumbai, Bandra, Powai must declare rental income, claim 30% standard deduction, and deduct home loan interest under Section 24(b).

Startup Founders (BKC, Powai): DPIIT-recognised startups claiming Section 80IAC tax holiday must file ITR-3. After ITR, ensure your Startup Registration and compliance are current.

ITR Filing Services Included by Patron in Mumbai

Service	What We Do
ITR Form Selection	Correct form based on income sources - ITR-1 for simple salaried, ITR-2 for capital gains/NRI, ITR-3 for business, ITR-4 for presumptive
Old vs New Regime Analysis	Dual computation under both regimes. Advise optimal choice. Non-business taxpayers can switch annually
Form 26AS / AIS Reconciliation	Reconcile all TDS/TCS entries and financial transactions. Identify discrepancies and resolve before filing
Deduction Optimisation	Maximise deductions under 80C, 80D, 80E, 80G, 24(b), HRA, NPS. New regime: standard deduction and 80CCD(2)
Advance Tax Computation	Quarterly advance tax estimates for freelancers, business owners, and investors to avoid Section 234B/234C interest
Capital Gains Reporting	STCG/LTCG computation with correct cost inflation index, set-off opportunities, and Section 54/54EC exemptions
TDS Reconciliation and Refund	Ensure all Form 26AS TDS entries are claimed. Accelerate refund processing for excess TDS deduction
Post-Filing Notice Handling	CPC Section 143(1) intimations, demand notices, defective return notices. Scrutiny representation at Aayakar Bhavan

Our Process

ITR Filing Process in Mumbai

Patron manages the end-to-end ITR filing process for Mumbai taxpayers - from document collection to e-verification and post-filing notice handling.

Step 1

Gather Documents

Collect Form 16, Form 16A, Form 26AS, AIS, bank statements, interest certificates, capital gains statements, rent receipts, home loan certificates, investment proofs (PPF, ELSS, LIC, NPS), health insurance receipts. For businesses: P&L, balance sheet, GST returns.

Form 16/26AS Investment Proofs

Docs Ready01

Step 2

Regime Selection and Tax Computation

Patron computes tax liability under both old and new regimes. New regime offers zero tax up to Rs 12 lakh. Old regime allows full deductions under 80C, 80D, 24(b), HRA. For Mumbai professionals with significant deductions, old regime may save more.

Dual Computation Regime Advisory

Regime Chosen02

Step 3

Form 26AS and AIS Reconciliation

Download Form 26AS and AIS from e-filing portal. Reconcile every entry with actual income. Identify discrepancies - missing TDS, incorrect amounts, unreported high-value transactions. Resolve mismatches before filing to prevent demand notices.

TDS Matching AIS Verification

Reconciled03

Step 4

ITR Form Preparation and E-Filing

Login to incometax.gov.in. Select ITR form and assessment year. Verify pre-filled data. Enter income from all heads. Claim deductions. Reconcile advance tax and TDS credits. Submit and generate ITR-V acknowledgement.

Portal Filing ITR-V Generated

Return Filed04

Step 5

E-Verification

E-verify within 30 days via Aadhaar OTP (most common), net banking, bank account EVC, or demat account EVC. Without verification, the return is treated as not filed. Patron completes e-verification immediately after filing.

Aadhaar OTP 30-Day Window

Verified05

Step 6

Post-Filing Tracking and Notice Handling

Track return processing status on incometax.gov.in. Monitor CPC intimations under Section 143(1). Handle demand notices or defective return notices. File revised returns if needed. If scrutiny, Patron represents at Aayakar Bhavan, Churchgate.

Status Tracking Notice Response

Compliant06

Documents Required for ITR Filing in Mumbai

PAN Card (mandatory for all ITR filings)
Aadhaar Card (linked with PAN, required for e-verification)
Form 16 (TDS certificate from employer - for salaried)
Form 16A (TDS certificates for non-salary income)
Form 26AS (Tax Credit Statement from incometax.gov.in)
Annual Information Statement (AIS) and Taxpayer Information Summary (TIS)
Bank statements for all accounts (savings + current + FDs)
Interest certificates from banks and post offices
Capital gains statements from brokers (equity, mutual funds)
Property sale/purchase documents (for capital gains on real estate)
Rent receipts and rental agreement (for HRA exemption)
Home loan interest certificate (for Section 24(b) deduction)
Investment proofs: PPF, ELSS, LIC, NSC, NPS, Sukanya Samriddhi (for Section 80C)
Health insurance premium receipts (for Section 80D)
Profit and Loss Account + Balance Sheet (for business/professional income)
Form 10-IEA (if opting out of new regime with business income)

Mumbai-specific tip: Mumbai salaried professionals at BKC and Nariman Point should download their AIS early - it captures high-value transactions (mutual fund SIPs, property registrations, foreign remittances) that the IT Department already knows about. Any mismatch between AIS data and your ITR invites a notice. Patron reconciles every AIS entry before filing.

Common ITR Filing Challenges in Mumbai

Challenge	Impact	How Patron Accounting Solves It
Multiple Income Sources	Salary + rental + capital gains + freelance income. Each under a different head, may need different ITR form	Patron identifies all sources, selects correct form, ensures nothing missed
Form 26AS/AIS Mismatches	Discrepancies between AIS data and actual income trigger demand notices	Full reconciliation of every entry before filing
Capital Gains Complexity	Multiple asset classes, different holding periods, indexation, set-off of losses, Section 54 exemptions	Expert computation with correct CII and reporting across ITR schedules
Wrong Regime Selection	Filing under wrong regime means excess tax or lost deduction benefits	Dual computation under both regimes before every filing
Late Filing Penalties	Rs 5,000 penalty, Section 234A interest, loss of carry-forward for capital/business losses	Proactive deadline tracking and timely filing for all Mumbai clients

ITR Filing Fees in Mumbai

Fee Component	Amount
Government Fee for ITR Filing	NIL - E-filing on incometax.gov.in is completely free
Patron Accounting Professional Fees (ITR Filing)	Starting from INR 499 (Exl GST and Govt. Charges)
ITR-2 (Capital Gains / NRI)	Starting from INR 4,999 (Exl GST and Govt. Charges)
ITR-3 (Business / Professional)	Starting from INR 2,999 (Exl GST and Govt. Charges)
ITR-4 (Presumptive Taxation)	Starting from INR 1,999 (Exl GST and Govt. Charges)
Tax Planning + ITR Filing	Starting from INR 9,999 (Exl GST and Govt. Charges)
Notice Handling (CPC / Demand)	Starting from INR 2,999 (Exl GST and Govt. Charges)

All fees and charges listed are indicative only and do not constitute a binding offer. Final amounts may vary depending on the volume of work and the complexity involved.

Professional service charges for drafting, filing, and representation are separate from the statutory fees. The exact fee depends on the complexity of the case, disputed amount, and number of hearings required. Contact us for a detailed quote.

Get a free Income Tax Return (ITR) Filing in Mumbai consultation - Call +91 945 945 6700 or WhatsApp us. No-obligation assessment.

ITR Filing Timeline and Due Dates

Stage	Estimated Timeline
ITR-1 / ITR-2 (Salaried, Investors, NRIs)	31 July
ITR-3 / ITR-4 Non-Audit (Business/Professional)	31 August (extended from FY 2025-26)
ITR-3 Audit Cases	31 October
Belated / Revised Return	31 December (31 March under new Act)
E-Verification (All Filers)	Within 30 days of filing

Note: Late filing attracts Rs 5,000 penalty (income above Rs 5 lakh) or Rs 1,000 (income up to Rs 5 lakh) plus interest under Section 234A. Current-year capital gains and business losses cannot be carried forward if return is filed late. File early to preserve carry-forward benefits.

Key Benefits

Why Choose Patron for ITR Filing in Mumbai

Walking Distance from Aayakar Bhavan

Marine Lines office is less than 1 km from Pr. CCIT Mumbai at Aayakar Bhavan, Churchgate, and adjacent to Old CGO Annexe. Immediate representation for scrutiny and hearings.

Regime Optimisation Expertise

Old vs new regime decision can mean Rs 50,000 to Rs 2 lakh difference. Patron computes both scenarios before every filing, ensuring minimum legally required tax.

Full Income Coverage

Mumbai taxpayers rarely have single-source income. Patron handles salary + rental + capital gains + freelance + NRI income in a single, correctly-structured return with complete AIS reconciliation.

Year-Round Tax Advisory

Not just a one-time July event. Quarterly advance tax computation, mid-year regime assessment, investment planning, and year-round notice monitoring for Mumbai clients.

Trusted by Taxpayers Across Mumbai

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Old Regime vs New Regime for Mumbai Taxpayers

Factor	New Tax Regime (Default)	Old Tax Regime
Basic Exemption	Rs 4 lakh	Rs 2.5 lakh (Rs 3L seniors, Rs 5L super seniors)
Zero Tax Ceiling	Rs 12 lakh (Rs 12.75L salaried)	Rs 5 lakh (with rebate)
Standard Deduction	Rs 75,000	Rs 50,000
80C (Rs 1.5L)	Not available	Available
80D Health Insurance	Not available	Available (Rs 25K/50K/1L)
HRA Exemption	Not available	Available
Home Loan 24(b)	Not available	Up to Rs 2 lakh
Best For (Mumbai)	Minimal deductions, income up to Rs 12-15L, young professionals	HRA + home loan + 80C + 80D, income above Rs 15L with high deductions

Related Services

Patron offers comprehensive tax and compliance services for Mumbai taxpayers:

Income Tax Return Filing in India - National ITR filing services
Tax Planning - Year-round tax optimisation advisory
TDS Return Filing - Quarterly TDS return filing for employers and businesses
Accounting Services - Full-service accounting for ITR preparation
GST Return Filing - Monthly/quarterly GST returns bundled with ITR
Payroll Services - TDS computation and Form 16 generation

Legal and Compliance Framework for ITR Filing in Mumbai

Governing Acts:

Income Tax Act, 1961 (until 31 March 2026) - Sections 139, 115BAC, 87A, 234A/B/C, 143(1), 143(3)
Income Tax Act, 2025 (from 1 April 2026) - simplified 536 sections, 23 chapters, unified Tax Year
Finance Act (annual slab rates and deduction updates via Union Budget)

Key Portals:

E-Filing Portal - incometax.gov.in (ITR filing, Form 26AS, AIS, status tracking)
Mumbai IT Region - incometaxmumbai.gov.in

Key Compliance:

File ITR before due date to avoid Rs 5,000 penalty and loss of carry-forward benefits
E-verify within 30 days (Aadhaar OTP or net banking)
Pay advance tax quarterly if liability exceeds Rs 10,000 after TDS
PAN-Aadhaar linkage mandatory - non-linkage makes PAN inoperative

FAQs - Income Tax Return (ITR) Filing in Mumbai

Find answers to common questions about ITR filing in Mumbai under the Income Tax Act.

Quick Answers

Mumbai mein ITR kaise file kare? incometax.gov.in par login karo. Sahi ITR form select karo - ITR-1 salaried, ITR-3 business. Income bharo, deductions claim karo, submit karo, Aadhaar OTP se e-verify karo. Due date: 31 July (salaried). Patron handles end-to-end.

Mumbai mein ITR filing ka kharcha? Govt fee: NIL (e-filing free). Patron CA fee: Rs 499 se (salaried ITR-1). Rs 2,999 se (business ITR-3). Rs 4,999 se (capital gains/NRI ITR-2).

12 lakh income par tax lagega kya? New regime mein Rs 12 lakh tak zero tax (Section 87A rebate). Salaried ke liye Rs 12.75 lakh tak. But ITR file karna mandatory hai agar income Rs 4 lakh se zyada hai.

Don't Miss Your ITR Filing Deadline in Mumbai

Every missed ITR deadline means penalties, lost carry-forward of losses, and potential scrutiny. The Income Tax Act 2025 takes effect from 1 April 2026. Mumbai's complex income landscape - multiple sources, high-value property, active capital markets - makes CA-managed filing essential. The AIS captures more financial data than ever, and any mismatch invites automated notices.

File early, file accurately - Call +91 945 945 6700 or WhatsApp us.

Get Your Income Tax Return Filed in Mumbai with Patron Accounting

Income Tax Return filing in Mumbai requires navigating India's most complex income tax landscape. The city houses the Pr. CCIT Mumbai at Aayakar Bhavan, Churchgate - the apex tax authority for western India. Mumbai's salaried professionals, business owners, freelancers, investors, and NRIs all need accurate, timely, and regime-optimised ITR filing.

Patron Accounting's Marine Lines office - walking distance from Aayakar Bhavan and the Old CGO Annexe - provides CA-managed ITR filing covering correct form selection, old-versus-new regime optimisation, complete Form 26AS and AIS reconciliation, advance tax computation, capital gains reporting, deduction maximisation, e-verification, and year-round notice handling. With 15+ years of CA practice and 10,000+ businesses served, Patron delivers the most comprehensive ITR filing service in Mumbai.

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Income Tax Return Filing Services Across India

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Content Created: 13 March 2026 | Last Updated: | Next Review: 13 July 2026 | Reviewed By: CA & CS Team, Patron Accounting LLP

This page is reviewed annually (Freshness Tier 1) to incorporate Income Tax Act amendments, new ITR forms, tax slab changes, and e-filing portal updates. Content accuracy is verified by CA & CS Team, Patron Accounting LLP.

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