Setting up accounting for a new business: a practical checklist

When you’re starting a business, accounting is rarely the exciting part. But the setup decisions you make early — how the business is structured, how money moves, how records are kept — shape every tax return and financial decision that follows. A little structure at the start prevents a lot of cleanup later.

1. Choose a structure with taxes in mind

Sole proprietorship, LLC, partnership, S corporation, or C corporation — each has different tax treatment, administrative requirements, and legal considerations. Many businesses start as an LLC and revisit the tax classification as profit grows. Legal protection questions belong with an attorney; tax and accounting implications belong in the same conversation. (More on that in our S corporation guide.)

2. Get an EIN and register where required

Most businesses will need an Employer Identification Number from the IRS, and many will need state registrations for things like sales tax or payroll. Requirements depend on what you sell, where, and whether you have employees.

3. Open separate business accounts

A dedicated business checking account and business credit card are non-negotiable. Mixing personal and business transactions is the single most common source of bookkeeping problems — and it makes it harder to support deductions and, for some entities, to maintain the separation between you and the business.

4. Pick accounting software and set it up properly

Cloud accounting software like QuickBooks makes it easy to connect bank feeds and generate reports. The part that matters is the setup: a chart of accounts designed around how your business actually earns and spends money, so reports are meaningful from the first month.

5. Decide how you’ll pay yourself

How owners get paid depends on the entity type. Sole proprietors and partners generally take draws; S corporation owners who work in the business need a reasonable salary through payroll. Decide this early so it’s reflected correctly in the books and in your tax planning.

6. Keep records as you go

• Save receipts and invoices digitally.
• Track mileage if you use a personal vehicle for business.
• Collect a Form W-9 from contractors before you pay them.
• Keep formation documents, EIN letters, and registrations in one place.

7. Plan for taxes from the first profitable month

New owners are often surprised by their first tax bill, because no one was withholding. Set aside a portion of profit as you earn it and plan for quarterly estimated payments.

8. Establish a monthly routine

Review and categorize transactions, reconcile accounts, and look at a basic profit and loss statement every month. It takes less time when it’s routine — and it means you always know where the business stands.

Start clean, stay clean

None of these steps is complicated on its own. The value is in doing them deliberately, at the start, instead of untangling them after the first busy year. If you’d like help getting set up, our business formation and setup services are designed for exactly this stage.