⚡ Quick Answer: Set up small business accounting in 5 steps: (1) Choose accounting software, (2) Open a dedicated business bank account, (3) Set up your chart of accounts, (4) Connect bank feeds and categorize transactions, (5) Schedule monthly reconciliation. Full step-by-step guide with setup checklist below.
Starting a new business is exciting, but getting your financial foundation right from day one is critical. Poor accounting setup is one of the most common and costly mistakes new business owners make. This guide walks you through the essential steps to set up accounting for your new business.
Key Takeaways
- Separate business and personal finances from day one — open a dedicated business bank account
- Choose accounting software before you make your first business transaction
- Decide on cash vs. accrual accounting method (most small businesses use cash basis)
- Set up your chart of accounts to match your industry
- Consider working with a bookkeeper or accountant from the start
Step 1: Choose Your Business Structure
Your business structure (sole proprietor, LLC, S-corp, C-corp) determines your tax obligations, reporting requirements, and personal liability. Most new small businesses start as sole proprietors or single-member LLCs. If you haven’t already, consult with an attorney or accountant to determine the right structure before proceeding.
Step 2: Get an EIN
An Employer Identification Number (EIN) is like a Social Security number for your business. You need one to open a business bank account, hire employees, and file most business taxes. Apply for free at IRS.gov — it takes about 10 minutes and your EIN is issued immediately.
Step 3: Open a Business Bank Account
This is non-negotiable. Mixing personal and business finances creates accounting nightmares at tax time and can expose you to personal liability if you’re an LLC. Open a business checking account before you make any business transactions. Mercury, Relay, and Chase Business are all solid choices (see our guide to best business checking accounts).
Step 4: Choose and Set Up Accounting Software
Pick your accounting software now, before transactions start accumulating. Connect your bank account, set up your chart of accounts, and enter your opening balances. For most new businesses, QuickBooks Online, FreshBooks, or Wave are the best options depending on your needs and budget. (QuickBooks Online for Beginners 2026)
Step 5: Establish Your Accounting Method
Cash basis accounting records income when cash is received and expenses when cash is paid. It’s simpler and is what most small businesses use.
Accrual accounting records income when it’s earned and expenses when they’re incurred, regardless of when cash changes hands. It’s required for businesses with over $25 million in revenue and gives a more accurate picture of financial health.
Step 6: Set Up Your Chart of Accounts
Your chart of accounts is the backbone of your accounting system — it’s the list of categories used to classify all transactions. Most accounting software comes with a default chart of accounts that you can customize. Work with an accountant to tailor it to your industry for maximum usefulness.
Monthly Accounting Checklist
- Reconcile all bank and credit card accounts
- Categorize all transactions
- Review accounts receivable — follow up on overdue invoices
- Review accounts payable — ensure all bills are paid on time
- Run and review your P&L and cash flow statement
This content is for informational purposes only and does not constitute financial advice.
Recommended Resources
- QuickBooks Online for Beginners 2026 — The top-rated guide to QuickBooks — setup, invoicing, payroll, and reporting.
- Accounting All-in-One For Dummies — Comprehensive coverage of small business accounting, bookkeeping, and tax basics.
Frequently Asked Questions
How do I set up accounting for a new small business?
Start with these 5 steps: select accounting software (Wave free, QuickBooks $30/month), open a business bank account, create your chart of accounts, connect your bank for automatic imports, then reconcile monthly. Most setups take 2–4 hours.
What is a chart of accounts for a small business?
A chart of accounts is a categorized list of all your business’s income and expense categories — like Sales Revenue, Office Supplies, Rent, Payroll, etc. Accounting software provides a standard template you can customize for your industry.
Do I need an accountant to set up QuickBooks?
No. QuickBooks Online has guided setup that walks you through company information, chart of accounts, and bank connections. Most business owners can complete basic setup in 1–2 hours. An accountant can help optimize the chart of accounts for your industry.
What is the first thing I should do for my business accounting?
Open a dedicated business bank account before you do anything else. This single step separates personal and business finances, which simplifies every accounting task that follows and is essential for tax filing.
How often should I do bookkeeping for my small business?
Reconcile your bank account and categorize transactions at minimum monthly, but weekly is better. Waiting until tax season creates hours of catch-up work. Accounting software with bank feeds makes weekly bookkeeping take 15–30 minutes.