Siddharth S. Kothari & Co.

Empowering your business
with expert taxation.auditing.advisory.consultancy.accounting.compliance.taxation.

A professionally managed CA Firm offering expert guidance in taxation, auditing, advisory, consultancy, accounting and compliance so you can focus on what matters most: growing your business.

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Years Experience

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Clients Served

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Client Retention

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Services Offered

10+

Years of Excellence

About the Firm

Driven by expertise,
defined by trust.

We are a prominent Chartered Accountancy firm based in Mumbai, India. We offer comprehensive professional services including accounts outsourcing, auditing, business taxation, corporate compliance, financial advisory, book keeping, management consultancy, tax litigation, and NRI taxation advisory.

Our team of experienced professionals provides financial solutions with a client-first approach, combining deep technical expertise with practical, compliance-driven strategies. Our client list includes domestic and international entities of various sizes across different industries.

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Our Services

Solutions tailored to your needs.

We provide real-world solutions to complex business issues through audit, taxation, compliance, advisory, and more.

Income tax planning, ITR Filing, Tax Assessments, TDS compliances, and Tax Advisory for Individuals and Corporates.

End-to-end GST compliance — Registration, Return Filing, Refund Claims, ITC Reconciliation, E-way bills, Advisory and GSTR 9/9C.

Statutory, Tax, Internal and Concurrent Audits conducted with rigour, independence, and professional integrity.

Systematic financial record maintenance using Tally, Zoho, and modern platforms using AI Technology — Bank Reconciliation and Real-time MIS reports.

Representation before CIT(A), ITAT, GST Appellate Tribunals. Appeals, notice replies, and dispute resolution including handling of complex Search and Seizure matters.

Business Valuations, Project Finance, Working Capital Optimisation, Due Diligence, Fundraising, and Investment Structuring.

Business Restructuring, Process Optimisation, Compliance Frameworks, Risk Assessment, and Business Operations Consultancy.

Company Incorporation, Annual Filings, LLP Formation, Companies Act 2013 compliance, and ROC matters.

Global Income Taxation, DTAA Benefits, Repatriation Advisory, and Investment Structuring in India.

CA Siddharth Kothari

CA Siddharth Kothari

Founder & Principal

CA Siddharth Kothari

Founder & Principal

Siddharth is a member of the Institute of Chartered Accountants of India and a seasoned consultant with over a decade of professional experience in taxation, compliance, and financial advisory.

Over the years, he has assisted numerous individuals and businesses in navigating the complexities of Indian taxation, corporate regulations, and financial management. His expertise spans direct and indirect taxation, statutory and internal audits, corporate compliance, and strategic financial advisory.

With a strong understanding of Indian regulatory frameworks and corporate tax structures, Siddharth provides practical, well-structured solutions to his clients. He is regarded as a trusted advisor to a wide range of businesses—from emerging startups to well-established enterprises—helping them achieve compliance, efficiency, and sustainable growth.

Get in Touch

We'd love to hear from you.

Schedule time to talk with an expert matched to your needs.

Whether you need help with tax planning, audit services, corporate compliance, or strategic financial advice — let's discuss how we can add value.

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Office Address

No 9, 1st Floor, A Wing, Avisha Tower,
Mughbat X Lane, Thakurwar, Charni Road,
Mumbai - 400004

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Working Hours

Mon – Sat: 10:00 AM – 7:30 PM

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