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Financial Planning & Advisory3 Jun 2026·8 min read

How to Choose the Right CA for Your Business

A good CA saves you far more than their fee; a bad one can cost you penalties, notices and sleepless nights. Here's how to choose the right Chartered Accountant — credentials, specialisation, UDIN checks, fees and red flags.

Deepak

Senior Advisor

How to Choose the Right CA for Your Business

Quick answers

  • First thing to check? ICAI membership — confirm the person is a registered Chartered Accountant.
  • Does specialisation matter? Yes — pick a CA experienced in your industry and your specific needs.
  • How to verify their work? Check the UDIN on any certificate they issue, on the ICAI portal.
  • Should I choose on price alone? No — the cheapest option often costs more through errors and penalties.
  • Biggest red flag? Anyone promising guaranteed refunds or unusually low tax.

What should you look for in a CA?

Choosing a CA means matching a verified ICAI member to your business's size, industry and compliance needs, while checking their credentials, responsiveness and fee transparency. The right CA is a long-term advisor, not just a once-a-year filer.

Because the title is statutory, your first step is always to confirm genuine ICAI membership before judging anything else.

Key terms explained

  • Membership number: The ICAI registration number that proves a person is a CA.
  • Specialisation: A CA's focus area, such as tax, audit, startups or a specific industry.
  • Engagement letter: A written agreement setting out scope, fees and responsibilities.
  • UDIN: The number on a CA certificate that you can verify online.

How to choose, step by step

  • Verify ICAI membership — Confirm the person is a registered Chartered Accountant and, for audits or certificates, holds a Certificate of Practice.
  • Match specialisation to your needs — Choose a CA with experience in your industry and the specific services you require, from GST to fundraising support.
  • Check references and reviews — Ask for client references and look at independent reviews to gauge reliability.
  • Discuss fees transparently — Ask how fees are structured and what is included, and get an indicative estimate in writing.
  • Sign an engagement letter — Agree the scope, deliverables, timelines and fees in a written engagement letter before work begins.

Questions to ask before hiring a CA

QuestionWhy it matters
What is your ICAI membership number?Confirms they are a genuine CA
Have you handled my industry?Relevant experience reduces errors
Who will actually do my work?You may meet a partner but be served by juniors
How are your fees structured?Avoids surprise bills
How quickly do you respond?Compliance is time-bound
Will you issue UDIN-backed certificates?Ensures verifiable certification

Common mistakes to avoid

  • Choosing on price alone — the cheapest CA often costs more through errors, missed deadlines and penalties.
  • Skipping the engagement letter — starting work on a verbal understanding leads to scope and fee disputes.
  • Believing refund guarantees — trusting a CA who promises guaranteed high refunds invites risky or false claims.

The cost of choosing badly

A wrong or false claim filed on your behalf can attract a penalty of 50% to 200% of tax under Section 270A of the Income-tax Act, 1961, and the liability falls on you, the taxpayer.

Engaging a non-CA for a statutory audit makes the audit invalid, exposing the company to penalties under the Companies Act, 2013.

Verifying the UDIN connects the certificate you receive to the ICAI register, so credential-checking and document-verification are part of the same safeguard. Because the taxpayer remains liable under Section 270A regardless of who filed, choosing an accountable CA directly limits your own penalty exposure.

Key takeaways

  • Verify ICAI membership before anything else.
  • Match the CA's specialisation to your industry and needs.
  • Get scope and fees in a written engagement letter.
  • Verify UDINs on any certificates issued.
  • Avoid anyone promising guaranteed refunds.

Frequently asked questions

  • How do I choose the right CA for my business? Verify ICAI membership, match their specialisation to your industry and needs, check references, discuss fees transparently, and sign a written engagement letter before work begins.
  • How do I verify that someone is a real CA? Ask for their ICAI membership number and verify any certificate they issue using its UDIN on the ICAI portal.
  • What questions should I ask before hiring a CA? Ask about their ICAI membership, relevant industry experience, who will handle your work, how fees are structured, and how quickly they respond.
  • Achha CA kaise choose karein? Pehle ICAI membership verify karein, phir apni industry ka experience, fees ki clarity aur responsiveness dekhein, aur ek written engagement letter lein.
  • Should I choose a CA based on the lowest fee? No. The cheapest option can cost more through errors, missed deadlines and penalties. Weigh experience, accountability and responsiveness alongside fee.
  • What is a red flag when hiring a CA? A major red flag is anyone who guarantees a specific high refund or unusually low tax, as this often signals risky or false claims.
  • Do I need a CA who specialises in my industry? Industry experience helps, because a CA familiar with your sector's rules makes fewer errors and gives more relevant advice.
  • What is an engagement letter? An engagement letter is a written agreement setting out the scope of work, deliverables, timelines and fees, protecting both you and the CA.
Choose a CAICAIUDINEngagement letter

About the author

Deepak

Senior Advisor at Regikart. Want to discuss this in the context of your business?

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