Running a successful business in the United States requires more than generating revenue and managing daily operations. Business owners must also maintain accurate financial records, comply with federal and state tax regulations, manage payroll, prepare financial statements, and make informed financial decisions.
Professional accounting and tax advisory services can help businesses organize their finances, understand their tax responsibilities, and improve financial reporting.
From startups and small businesses to large corporations, choosing the right accounting firm can make a significant difference in financial management. Some firms specialize in small business bookkeeping and tax preparation, while others provide corporate tax advisory, audit services, international tax planning, and complex financial consulting.
This guide explores some of the top accounting and tax advisory firms serving US businesses, explains their services, and provides practical tips for selecting an accounting partner.
Why Do US Businesses Need Professional Accounting and Tax Advisory Services?
American businesses operate under federal, state, and local financial regulations. Maintaining accurate records and meeting tax deadlines can become challenging as a company grows.
Professional accounting services can help businesses with:
- Federal and state business tax preparation.
- Corporate tax planning.
- Bookkeeping and financial reporting.
- Payroll accounting.
- Sales tax compliance.
- Business financial statements.
- Tax deductions and credit research.
- Audit preparation and support.
- Cash flow management.
- Business financial consulting.
A qualified accounting professional can also help business owners understand their financial position and make better decisions about expansion, investment, hiring, and operating expenses.
Top Accounting and Tax Advisory Firms for US Businesses
The following firms are established names in the US accounting and professional services industry. Their services, pricing, and availability vary according to business size, location, and engagement requirements.
1. Deloitte
<Entity value=”Deloitte” category=”company” disambig=”Professional services and accounting firm”/> is one of the world’s largest professional services organizations.
Its services include tax advisory, audit and assurance, consulting, risk management, and financial advisory.
Deloitte may be relevant to:
- Large corporations.
- Multinational businesses.
- Complex corporate tax matters.
- International tax planning.
- Business restructuring.
- Financial reporting and compliance.
Companies with complicated operations may benefit from exploring its specialized tax and financial advisory capabilities.
2. PwC (PricewaterhouseCoopers)
<Entity value=”PwC” category=”company” disambig=”Global professional services and accounting firm”/> provides tax, audit, assurance, and consulting services to organizations across different industries.
Its tax professionals work on areas such as corporate tax compliance, international taxation, transaction planning, and tax technology.
Potential services include:
- Corporate tax advisory.
- Business tax compliance.
- International tax planning.
- Mergers and acquisitions tax support.
- Financial reporting.
- Tax risk management.
PwC is worth researching for businesses with complex tax structures or international operations.
3. EY (Ernst & Young)
<Entity value=”EY” category=”company” disambig=”Global professional services and accounting firm”/> offers professional services covering tax, assurance, consulting, and strategy-related advisory.
Its tax services may support businesses dealing with domestic and international tax requirements.
Potential areas of assistance include:
- Corporate tax compliance.
- Tax planning.
- International business taxation.
- Transaction tax advisory.
- Tax technology.
- Business transformation.
Companies should discuss their specific requirements and expected engagement costs before selecting a service package.
4. KPMG
<Entity value=”KPMG” category=”company” disambig=”Global audit, tax, and advisory firm”/> is a major professional services firm providing audit, tax, and advisory services.
Its business tax services may be relevant to organizations requiring support with complex reporting and compliance responsibilities.
Potential services include:
- Corporate income tax advisory.
- International tax matters.
- Tax compliance.
- Business restructuring.
- Risk and regulatory consulting.
- Financial statement audits.
KPMG may be particularly relevant to larger organizations with multiple entities or cross-border operations.
5. RSM US
<Entity value=”RSM US” category=”company” disambig=”Accounting, tax, and consulting firm”/> provides accounting, tax, and consulting services to middle-market businesses.
Its services may support companies that need professional assistance with financial reporting, business taxes, and operational growth.
Potential offerings include:
- Business tax planning.
- Tax compliance.
- Audit and assurance.
- Accounting advisory.
- Business consulting.
- Technology and risk services.
Businesses should evaluate its experience with their industry and company size.
6. BDO USA
<Entity value=”BDO USA” category=”company” disambig=”Accounting, tax, and advisory firm”/> provides accounting, tax, and advisory services to businesses across several industries.
Its services may be relevant to companies requiring tax compliance, financial reporting, audit support, and business consulting.
Potential areas include:
- Corporate tax services.
- International tax advisory.
- Business accounting.
- Audit and assurance.
- Transaction advisory.
- Financial reporting support.
BDO is worth comparing for companies seeking professional services beyond routine tax preparation.
7. Grant Thornton
<Entity value=”Grant Thornton” category=”company” disambig=”Accounting, tax, and advisory firm”/> provides audit, tax, and advisory services to businesses and organizations.
Its services may support companies with financial reporting, corporate taxation, and business transformation requirements.
Potential services include:
- Corporate tax compliance.
- Tax advisory.
- Audit services.
- Business consulting.
- Risk management.
- Transaction-related advisory.
Companies should confirm current service availability and the firm’s experience with their specific financial requirements.
8. CBIZ
<Entity value=”CBIZ” category=”company” disambig=”Accounting, tax, and business advisory services firm”/> provides accounting, tax, financial, and advisory services to businesses and individuals.
Its services may be relevant to small and medium-sized businesses that need help managing financial operations.
Potential offerings include:
- Business tax preparation.
- Accounting and bookkeeping.
- Payroll-related services.
- Financial consulting.
- Tax planning.
- Advisory services.
Business owners should compare service packages and understand which services are included in the proposed engagement.
9. Baker Tilly
<Entity value=”Baker Tilly” category=”company” disambig=”Accounting, tax, and advisory firm”/> provides accounting, tax, assurance, and consulting services.
Its professionals serve organizations across different sectors and may assist with complex financial and business challenges.
Potential services include:
- Business tax advisory.
- Accounting services.
- Audit and assurance.
- Transaction advisory.
- Business consulting.
- Financial planning support.
Baker Tilly may be worth researching for growing businesses that require broader professional assistance.
10. CLA (CliftonLarsonAllen)
<Entity value=”CliftonLarsonAllen” category=”company” disambig=”Accounting, tax, and professional advisory firm”/> provides accounting, tax, wealth advisory, and consulting services.
Its offerings may be relevant to privately held businesses, nonprofit organizations, and other American companies.
Potential services include:
- Small business accounting.
- Corporate tax preparation.
- Tax planning.
- Audit and assurance.
- Financial consulting.
- Business succession planning.
Businesses should discuss their financial goals and industry requirements when evaluating CLA.
Types of Accounting Services Available to US Businesses
Accounting firms provide different services depending on a company’s size, industry, and financial complexity.
1. Business Tax Preparation
Business tax preparation involves organizing financial records and preparing applicable tax returns.
Depending on the business structure, federal tax filing responsibilities may involve forms for corporations, partnerships, sole proprietorships, or limited liability companies.
An accountant can help identify filing obligations, review financial records, and prepare required documentation.
2. Corporate Tax Planning
Corporate tax planning involves evaluating business transactions and financial decisions within applicable tax laws.
Professional advisors may help businesses understand:
- Tax deductions.
- Eligible tax credits.
- Depreciation rules.
- Business entity considerations.
- Estimated tax obligations.
- Tax implications of business expansion.
Tax planning should be based on current law and the company’s actual financial circumstances.
3. Bookkeeping Services
Bookkeeping involves recording and organizing business financial transactions.
Common bookkeeping activities include:
- Recording income and expenses.
- Reconciling bank accounts.
- Managing accounts payable.
- Tracking accounts receivable.
- Organizing invoices.
- Maintaining general ledgers.
- Preparing financial reports.
Accurate bookkeeping gives business owners a clearer understanding of revenue, expenses, and cash flow.
4. Payroll Accounting
Payroll accounting involves calculating employee compensation and managing related tax reporting responsibilities.
Services may include payroll processing, payroll tax calculations, employee payment records, and year-end reporting.
Businesses must understand their federal, state, and local employment tax obligations.
5. Audit and Assurance Services
Audit and assurance services help organizations evaluate financial statements and reporting processes.
An independent financial statement audit may be required by lenders, investors, regulators, or contractual agreements.
The appropriate type of engagement depends on the organization’s reporting requirements.
6. International Tax Advisory
Companies operating in multiple countries may face additional tax and reporting obligations.
International tax professionals can help businesses understand cross-border transactions, transfer pricing considerations, foreign tax credits, and applicable reporting requirements.
These matters can be particularly important for US businesses with overseas subsidiaries, employees, or customers.
How Much Do Accounting and Tax Advisory Services Cost in the USA?
Accounting fees vary considerably based on the size of the business, service complexity, location, and professional experience.
A small business needing basic bookkeeping may pay a different fee from a corporation requiring financial statement audits and international tax advisory.
Common pricing structures include:
- Hourly professional fees.
- Monthly bookkeeping packages.
- Fixed-fee tax preparation.
- Annual accounting service agreements.
- Project-based consulting fees.
- Custom corporate advisory engagements.
Before hiring an accounting firm, request a written proposal explaining the services included, billing arrangements, additional charges, and expected delivery timelines.
Do not compare firms using price alone. Experience, service quality, qualifications, and industry knowledge are also important.
How to Choose the Best Accounting Firm for Your Business
Selecting an accounting partner requires evaluating your company’s financial needs and long-term goals.
Consider these factors:
- Business Experience: Choose professionals familiar with your industry and business structure.
- CPA Qualifications: Verify relevant professional credentials and state licensing where applicable.
- Tax Expertise: Evaluate experience with federal, state, and local business tax requirements.
- Service Range: Determine whether the firm offers bookkeeping, payroll, tax preparation, and advisory services.
- Technology: Ask about accounting software, secure document sharing, and reporting tools.
- Communication: Consider response times and access to the professionals handling your account.
- Pricing: Request a clear proposal with all expected fees.
- Security: Understand how sensitive financial information is stored and protected.
- References: Research client feedback and professional reputation.
- Scalability: Select a firm capable of supporting your business as its financial needs become more complex.
Common Accounting and Tax Mistakes US Businesses Should Avoid
Poor financial management can create unnecessary expenses and compliance problems.
Businesses should avoid these common mistakes:
- Mixing personal and business transactions.
- Failing to maintain organized financial records.
- Missing tax filing deadlines.
- Misclassifying workers.
- Ignoring state and local tax obligations.
- Failing to reconcile bank accounts.
- Claiming deductions without adequate documentation.
- Overlooking estimated tax payments.
- Ignoring payroll tax responsibilities.
- Waiting until tax season to organize financial documents.
Maintaining accurate records throughout the year can make tax preparation and financial reporting more manageable.
Frequently Asked Questions About Accounting and Tax Advisory Firms
Which Accounting Firm Is Best for US Businesses?
The best firm depends on business size, industry, location, and service requirements. Deloitte, PwC, EY, KPMG, RSM US, BDO USA, CBIZ, Baker Tilly, and CLA are among the firms worth researching.
Do Small Businesses Need a CPA?
Not every small business is legally required to hire a CPA. However, professional accounting assistance can be valuable for tax preparation, financial reporting, bookkeeping, and complex business decisions.
What Is the Difference Between an Accountant and a CPA?
An accountant performs financial recordkeeping and accounting-related work. A Certified Public Accountant has met specific education, examination, and licensing requirements established by the relevant state authority.
Can an Accounting Firm Handle Business Taxes?
Many accounting firms provide business tax preparation, tax planning, and compliance services. The specific services available depend on the firm and engagement agreement.
How Often Should a Business Use Accounting Services?
Businesses commonly maintain accounting records throughout the year and review financial performance regularly. The appropriate service frequency depends on transaction volume, business size, and reporting requirements.
Are Accounting Fees Tax-Deductible for Businesses?
Many ordinary and necessary business accounting and tax preparation expenses may be deductible under applicable tax rules. The exact treatment depends on the nature of the expense and business circumstances. Consult a qualified tax professional.
What Documents Should I Prepare Before Hiring an Accountant?
Common documents include business bank statements, financial statements, prior tax returns, payroll records, invoices, expense receipts, and business registration information.
Final Thoughts
Professional accounting and tax advisory services can help US businesses maintain accurate financial records, manage tax obligations, and make informed financial decisions.
Deloitte, PwC, EY, KPMG, RSM US, BDO USA, Grant Thornton, CBIZ, Baker Tilly, and CLA are established firms worth researching for different business accounting and advisory needs.
The right accounting partner depends on company size, industry, financial complexity, service requirements, and budget.
Before selecting a provider, compare professional qualifications, industry experience, service packages, pricing, communication, and data security.
A reliable accounting relationship can support better financial management and help a business prepare for sustainable growth.
Disclaimer: This article is for informational and educational purposes only and does not constitute accounting, tax, financial, or legal advice. Tax rules and reporting requirements may change and vary by jurisdiction. Consult a qualified CPA or tax professional regarding your specific business circumstances.