Delhi NCR sits at the intersection of India’s government policy machinery, its largest public sector mandates, and a genuinely massive private business ecosystem spanning Gurugram’s corporate towers to Noida’s manufacturing belt. This list of the top 5 CA firms in Delhi 2026 reflects that unique mix — firms here don’t just handle standard audit and tax work, they’re often the ones sitting in the room during major budget policy discussions and cross-border regulatory decisions that shape national economic direction.
Whether you’re a business owner navigating GST 2.0 reforms, a startup needing cross-border tax structuring, or a large corporation requiring PAN-India compliance support, Delhi’s CA landscape offers genuinely distinct options depending on what you actually need. Here’s a clear breakdown of who’s leading it.
| Firm | Origin/Established | Scale | Known For |
| SS Kothari Mehta & Company | 1953 (Kolkata origin, HQ now Delhi) | ~500 professionals | Audit, risk advisory, M&A, cross-sector expertise |
| BDO India | Indian BDO network member since 2013 | 11,000+ professionals, 20 offices | Multidisciplinary, technology-first approach |
| Nangia Andersen India | Established cross-border specialist | Growing PAN-India presence | International tax, cross-border advisory |
| RSM India | Part of RSM International network | Largest global tax/audit/advisory network | IT, engineering, and pharma sector expertise |
| EY India | Big 4 global network | Major Delhi NCR presence | Policy engagement, budget advisory, transaction work |
1. SS Kothari Mehta & Company
SS Kothari Mehta has built more than seven decades of continuous practice, evolving from its Kolkata origins in 1953 into one of Delhi’s most established chartered accountancy firms.
- Headquartered in New Delhi with an experienced team of around 500 professionals
- Comprehensive service range covering audit & assurance, risk advisory, direct & indirect taxes, and M&A transaction advisory
- Regularly conducts webinars on critical current topics, including GST 2.0 reforms and the India-UK Trade Treaty
- Serves prominent international and domestic clients across manufacturing, IT/ITES, and financial services sectors
- Extends PAN-India presence through an established associate network beyond its core Delhi, Chandigarh, and Mumbai offices
2. BDO India
BDO India has grown into a genuinely large multidisciplinary practice since becoming the Indian member firm of the global BDO network in 2013.
- As of 2026, led by Managing Partner Milind Kothari, employing more than 11,000 professionals
- Operates through 20 offices across 14 Indian cities, including a strong Delhi NCR presence
- Specializes in Assurance, Tax, Advisory, and Business Services & Outsourcing
- Provides multidisciplinary expertise spanning Risk Advisory, Digital Transformation, M&A Tax, and Sustainability & ESG
- Recognized specifically for its technology-first approach, appealing to businesses wanting modern, digitally-enabled service delivery
3. Nangia Andersen India
Nangia Andersen has established itself specifically around cross-border advisory expertise, making it a genuinely strong choice for businesses with international operations or transactions.
- Focus on cross-border tax structuring and international advisory work
- Strong relevance for foreign companies entering the Indian market or Indian businesses expanding internationally
- Growing presence within Delhi NCR’s competitive mid-sized advisory firm landscape
- Positioned toward businesses needing specialized regulatory navigation beyond standard domestic compliance
4. RSM India
RSM India benefits from being part of RSM International, described as having the largest network for tax, audit, and advisory services globally.
- Well suited specifically for businesses in IT, engineering, and pharmaceutical industries
- Backed by genuinely extensive international network resources despite operating as a mid-sized firm domestically
- Popular destination for CA articleship training, offering diversified industry exposure
- Represents a strong middle ground between boutique local firms and full Big 4 scale
5. EY India
EY rounds out Delhi’s top tier as the Big 4 presence most closely associated with policy-level engagement in the national capital.
- Major Delhi NCR presence directly tied to the city’s proximity to central government policy-making
- Frequently involved in driving budget-related discussions and analysis given its national capital location
- Comprehensive service range covering audit, tax, transaction advisory, and broader consulting
- Strong choice for large corporations and listed companies needing globally recognized audit credibility
Choosing the Right CA Firm in Delhi: What Actually Matters
The right choice in Delhi depends heavily on the specific nature of your business, not just a firm’s overall size or reputation:
- Consider policy and government proximity if relevant to your business — firms like EY with strong Delhi NCR presence often have closer visibility into upcoming regulatory and budget changes affecting your sector
- Match cross-border needs to specialist firms — businesses with international transactions or foreign investment structures benefit genuinely from firms like Nangia Andersen with dedicated cross-border expertise
- Evaluate industry-specific experience carefully — RSM India’s strength in IT, engineering, and pharma makes it a stronger fit for those sectors than a pure generalist firm
- Check technology and digital delivery capability — BDO India’s technology-first approach matters if your business prioritizes digital-first compliance and reporting workflows
- Balance firm scale against personalized service needs — established mid-sized firms like SS Kothari Mehta often provide more accessible partner attention than the largest Big 4 engagement structures
FAQs
Q1. Should I choose a Delhi-based firm with government or policy connections if my business doesn’t deal directly with the public sector?
Policy proximity matters most for businesses in regulated sectors, government contracting, or industries frequently affected by budget changes, where firms like EY offer genuine early insight advantages. For standard private-sector compliance needs, this factor matters far less than industry expertise and service responsiveness.
Q2. What’s the difference between choosing RSM India versus BDO India for a mid-sized business?
RSM India tends to offer stronger specialization specifically for IT, engineering, and pharmaceutical businesses, while BDO India brings broader multidisciplinary services with a more technology-forward delivery approach. The better fit depends on whether your priority is sector-specific expertise or digital-first service delivery across a wider service range.
Q3. Is it worth using a cross-border specialist like Nangia Andersen if my business only operates domestically currently but plans to expand internationally?
If international expansion is a genuine near-term plan, engaging early with a cross-border specialist can help structure your business more efficiently from the start, avoiding costly restructuring later. For businesses with no concrete international plans, a strong domestic-focused firm remains the more cost-effective choice until expansion becomes an actual priority.
Q4. How do I verify that a CA firm’s claimed scale, like “11,000 professionals” or “PAN-India presence,” actually translates to better service for my business?
Large scale matters most for complex, multi-location businesses needing consistent compliance support across several states, while a smaller dedicated team often serves single-location businesses more attentively. Ask specifically which partner and team will handle your account day-to-day, since firm-wide scale doesn’t always translate into more resources for your particular engagement.
