40 Years of Trusted GST, Tax & Advisory Excellence

Helping businesses navigate GST, Indirect Taxes, Direct Taxes and Litigation with clarity and confidence.

Specialists in GST Advisory, Compliance & Litigation

Sector-agnostic expertise backed by decades of practical experience and representational work.

Your Partner in Tax, Compliance & Strategic Decisions

From daily compliance to high-stakes litigation, we deliver reliable, implementable solutions.

Welcome to Deepak H Thakkar & Associates

Deepak Thakkar & Associates is a boutique Chartered Accountant firm based in Mumbai, rooted in more than 40 years of practice in Indirect Taxes, GST, Direct Taxes, Transfer Pricing and Litigation Support. Our approach is grounded in clarity, integrity, and practical implementation, serving clients across India and overseas.

We also work seamlessly through our network firm Ronak D Thakkar & Associates, enabling cohesive delivery across advisory, compliance and representation.

Services

At Deepak H Thakkar & Associates, we offer a broad spectrum of services designed to address the dynamic needs of businesses, professionals. With a focus on quality, compliance, and strategic insight, our offerings are tailored to help clients navigate complexity and achieve sustainable growth.

GST

Strategy · Compliance · Disputes

Comprehensive support across classification, valuation, place of supply, ITC optimisation, GST health checks, compliances, refunds, audits, notices, investigations and representation before authorities.

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Tax

Direct Taxes · TDS · Transactions

End-to-end direct tax services including advisory, individual & business filings, assessments, TDS reviews, withholding optimisation and regulatory compliance.

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Assurance

Audit · Controls · Reporting

Statutory audits, internal audits, GST audits, reconciliations, certification services and structured reporting with a strong focus on controls and transparency.

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Global

Cross-Border Advisory · Transfer Pricing

Transfer Pricing planning, benchmarking, documentation, 3CEB certification and cross-border tax advisory for global business structures.

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Our Team

A leadership-driven practice supported by a capable team and a trusted professional network — ensuring depth, reliability, and practical solutions for every engagement.

Careers

Looking to work in a knowledge-driven and growth-oriented environment? Join our team of professionals and interns dedicated to continuous learning, responsibility, and professional growth.

Blog Updates

Stay informed with curated updates, circulars, case laws, regulatory changes, and expert opinions. We bring you timely and relevant insights to help you make informed business and financial decisions.

Contact Us

Have a question or need assistance? Get in touch with us via phone, email, or through our secure contact form. We look forward to understanding your requirements and offering effective solutions.

News & Due Date Reminder and Blog

News

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Due Date Reminder

Jan Feb Mar Apr May June
July Aug Sep Oct Nov Dec
All
07 Sep 26 E-filing details of declarations received in August, from buyers for non-deduction of TCS at income tax efiling portal with TAN login.
07 Sep 26 Return of External Commercial Borrowings for August.
07 Sep 26 Payment of TDS/TCS of August.In case of government offices where TDS/TCS is paid by book entry, same shall be paid on the same day on which tax is deducted or collected.
10 Sep 26 Monthly Return by Tax Deductors for August.
10 Sep 26 Monthly Return by e-commerce operators for August.
11 Sep 26 Monthly Return of Outward Supplies for August.
13 Sep 26 Monthly Return of Input Service Distributor for August.
13 Sep 26 Optional Upload of B2B invoices, Dr/Cr notes under QRMP scheme for August.
13 Sep 26 Monthly Return by Non-resident taxable person for August.
14 Sep 26 Issue of TDS Certificate for TDS deducted u/s 393(1) [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] in July on Purchase of Property, Rent above 50,000 pm by certain individuals/HUF where lease has terminated, certain other payments by individual/HUF & on Vir
15 Sep 26 Deposit of Second Instalment of Advance Tax (45%) by all assessees (other than sec 58(2), Table Sl. No. 1& 3) (44AD & 44ADA cases).
15 Sep 26 Details of Deposit of TDS/TCS of August by book entry by an office of the Government.
15 Sep 26 E-Payment of PF for August.
15 Sep 26 Payment of ESI for August
15 Sep 26 Regularise pending MCA annual filings under CCFS 2026 Scheme without penalty but at concessional fees. Parallel route for inactive or defunct companies to opt for dormancy or strike-off.
20 Sep 26 To add/amend particulars (other than GSTIN) in GSTR-1 of Aug. It can be filed after filing of GSTR-1 but before filing corresponding GSTR-3B.
20 Sep 26 Summary Return cum Payment of Tax for August by Monthly filers. (other than QRMP).
20 Sep 26 Monthly Return by persons outside India providing online information and data base access or retrieval services, for August.
25 Sep 26 Deposit of GST under QRMP scheme for August .
27 Sep 26 Filing of Financial Statements for FY 2025-26 by OPC Companies.
27 Sep 26 Submission of Cost Audit Report by Cost Auditor to the Board of Directors for FY 2025-26.
28 Sep 26 Return for August by persons with Unique Identification Number (UIN) like embassies etc to get refund under GST for goods and services purchased by them.
30 Sep 26 Transfer of unspent CSR amount to the CSR fund by All Companies whose CSR Expenditure is unspent as on 31st March and such amount is not marked for any ongoing project.
30 Sep 26 Quarter 2 – Board Meeting of All Companies
30 Sep 26 Annual General Meeting of All Companies.
30 Sep 26 KYC of All Directors (individuals) who hold DIN on 31st March, 2026.
30 Sep 26 Annual accounts along with the list of all principal places of business in India established by a foreign company (Branch / Liaison /Project Office)
30 Sep 26 Deposit of TDS on payment made u/s 393(1) [Table Sl. No. 2(i), 3(i), 6(ii) & 8(vi)] for purchase of property, payment of Rent more than 50,000 pm by individual or HUF (not liable to tax audit) where lease has terminated, certain other payments made by
30 Sep 26 Filing of Tax Audit Report where due date of ITR is 31 Oct.
30 Sep 26 Filing of MAT/AMT Audit Report etc. where due date of ITR is 31 Oct.
30 Sep 26 Filing of Audit Report u/s 80JJAA(2) for additional employment where due date of ITR is 31 Oct.
30 Sep 26 Filing of other Audit Reports , where due date of ITR is 31 Oct.
30 Sep 26 Application for exercising option under Explanation to section 11(1) to apply income of previous year in the next year or in future, if ITR due date is Nov 30.?
30 Sep 26 Filing of Statement to accumulate income for future application u/s 10(21) or 11(1), if ITR due date is Nov 30.?
30 Sep 26 Filing of Audit report by a fund or trust or institution or any university or other educational institution or any hospital or other medical institution?
30 Sep 26 Payment of membership fee for 2025-26 by ICAI Members.
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