Ernst & Young is a global accounting and consulting firm that serves businesses, not individual consumers
Ernst & Young (EY) is one of the "Big Four" accounting firms — the largest by revenue in the world. The firm provides audit, tax, consulting, and advisory services to corporations, government agencies, and other large organizations. If you work in accounting or finance, you may encounter EY as your employer, your company's auditor, or a consultant hired to review your organization's finances.
EY does not offer banking products, investment accounts, or financial services to individual people. It is a professional services firm that works with institutions and businesses. Understanding what EY does and how it fits into the accounting world can help you recognize its role if you encounter it in your work or career.
Key Takeaways
- EY is one of four largest accounting firms globally and provides audit, tax, and consulting services to large organizations, not individuals.
- The firm's audit services mean EY reviews a company's financial records to verify they are accurate and follow accounting rules.
- EY's tax services help corporations navigate complex tax laws and plan their tax strategies across multiple countries.
- EY also offers consulting on business operations, technology, and strategy — services separate from traditional accounting work.
- If your employer or a company you do business with uses EY, the firm's work affects how that organization reports its finances.
The four main services EY provides
EY divides its work into four broad categories. Audit is the service most people associate with large accounting firms: EY reviews a company's financial statements and accounting records to confirm they are accurate and comply with accounting standards. When a public company publishes its annual financial report, an EY audit opinion is often attached to it, telling investors and regulators that the numbers have been checked.
Tax services help organizations reduce their tax burden and stay compliant with tax laws. This includes preparing tax returns for corporations, advising on tax strategy, and helping companies navigate tax rules in multiple countries. A multinational company might hire EY to plan how to structure its operations to minimize taxes legally.
Consulting covers a much wider range of work: helping companies improve operations, adopt new technology, restructure their workforce, or plan for growth. This is not accounting in the traditional sense — it is business information. Advisory services overlap with consulting but often focus on specific high-stakes situations like mergers, acquisitions, or financial restructuring.
Who hires EY and why
EY's clients are almost always large organizations. Public companies are required by law to have their financial statements audited by an independent firm, and EY audits thousands of them. Private companies, nonprofits, and government agencies also hire EY for audit work, though it is not legally required for all of them.
Organizations hire EY for tax and consulting work because the firm has deep informed in complex situations. A company expanding into a new country, integrating two businesses after a merger, or facing a major technology overhaul might bring in EY consultants. Smaller businesses typically work with local or regional accounting firms instead, because EY's fees are high and its services are built for large-scale operations.
How EY's audit work affects financial reporting
When EY audits a company, it does not verify every single transaction. Instead, auditors test samples of transactions, review the company's accounting systems and controls, and assess whether the financial statements as a whole are accurate. The goal is to give reasonable assurance — not absolute certainty — that the numbers are correct.
After the audit is complete, EY issues an audit opinion. A "clean" or "unqualified" opinion means the financial statements are accurate and follow accounting rules. A "may have access to" opinion flags a problem — perhaps the company could not provide certain records, or there is a significant uncertainty about a major asset. A "going concern" warning tells readers that the auditor has doubts about whether the company can continue operating. These opinions matter to investors, lenders, and regulators because they signal whether the financial statements can be trusted.
The difference between EY and your personal accountant or tax preparer
If you hire a CPA or tax preparer to do your personal taxes, that person is not doing the same work as EY. Your tax preparer helps you file your individual return and may offer tax planning information. EY works on a vastly larger scale: auditing the financial statements of Fortune 500 companies, managing tax strategies for multinational corporations, and advising on billion-dollar business decisions.
EY also differs from a bookkeeper or small-business accountant. Those professionals help businesses record day-to-day transactions and prepare financial statements. EY comes in after the fact to verify that the work was done correctly. The relationship is similar to the difference between a builder and a building inspector — one constructs, the other verifies.
How to recognize EY's involvement in an organization
If you work for a large company, you may see EY's name in the annual report or financial statements. Public companies file their audited financial statements with the Securities and Exchange Commission (SEC), and the audit firm's name appears on the cover page. You can search the SEC's EDGAR database to find these filings and see which firm audited any public company.
If your company is undergoing a major change — a merger, a restructuring, a technology overhaul — EY consultants may be brought in. You might notice them in the office, or your manager might mention that EY is advising on the project. During tax season, EY tax professionals may work with your company's finance team on year-end tax planning.
EY's role in the accounting profession
EY is one of four firms — along with Deloitte, PwC, and KPMG — that dominate large-scale accounting and consulting work globally. These firms set standards and practices that influence how accounting is done across the industry. They also employ tens of thousands of accountants, auditors, and consultants, making them major employers in the profession.
Because of their size and influence, the Big Four firms are subject to regulatory oversight. The Public Company Accounting Oversight Board (PCAOB) inspects their audit work to may support quality. Regulators also monitor these firms to prevent conflicts of interest — for example, a firm should not audit a company while also providing consulting services that might bias the audit.
Frequently Asked Questions
Does EY offer services to individuals or small businesses?
EY's core services are designed for large organizations. Small businesses and individuals typically work with local or regional accounting firms. EY does not offer personal banking, investment, or tax preparation services to individuals.
What does it mean if EY audited my company's financial statements?
It means an independent firm has reviewed your company's accounting records and financial statements to verify they are accurate and follow accounting rules. An EY audit opinion gives investors, lenders, and regulators confidence in the numbers your company reports.
Can EY both audit a company and provide consulting to that same company?
Regulations limit this to prevent conflicts of interest. EY can provide some consulting services to audit clients, but certain high-risk services are prohibited. The goal is to may support that the audit remains independent and unbiased.
How do I learn about EY audited a public company?
Search the SEC's EDGAR database using the company's name. Open the most recent 10-K filing (annual report). The audit firm's name appears on the first page of the financial statements section.
What is the difference between EY's audit and tax services?
Audit verifies that financial statements are accurate and follow accounting rules. Tax services help organizations reduce their tax burden, plan tax strategy, and comply with tax laws. A company might use both services, but they serve different purposes.