What clean books actually look like

Every tax strategy, from your S-corp salary to your retirement contributions, is built on your books. If the numbers underneath are off, the plan is off too. Here is what “clean” should actually mean.

Why clean books matter

Your books should show your gross income, deductions, and credits, supported by the documents behind them.¹ But their real value is earlier than tax season. Clean books let you see profit as it happens, set your salary on real numbers, and catch problems while they are still small.

The clean-books standard

By about the 15th of each month, last month should be closed. That means:

1. Every account is reconciled. Bank, credit card, loan, and merchant accounts all match their statements.
2. Every transaction is categorized. Nothing sits in “uncategorized” or “ask my accountant.”
3. Business and personal are separate. Personal spending doesn’t run through the business, and vice versa.
4. Each entity has its own books. If you own more than one business, the IRS expects a complete and separate set of records for each.¹
5. Payroll ties out. Payroll reports match what hit the bank, including your own salary.
6. Owner draws are recorded correctly. Distributions are not expenses.
7. You get a short report. Profit and loss, balance sheet, and a few notes on what changed.

Records to keep, and for how long

Keep the documents that support your books: receipts, invoices, bank and card statements, payroll records, and asset purchase records. Vehicle, travel, and meal expenses have their own documentation rules, so keep logs and receipts that show the business purpose.³

The IRS generally suggests keeping records for three years, and employment tax records for at least four.² Some records, like those for property you still own, need to be kept longer.¹

Signs your books need cleanup

• Your accounts haven’t been reconciled in months.
• Your profit on paper doesn’t match what you see in the bank.
• Your accountant asks the same questions every spring.
• You can’t say what you made last month without logging in to your bank.

Once the books are clean, the planning can start. See what a written tax plan includes.

Frequently asked questions

What does clean books mean?

Clean books are reconciled to every bank and card statement, fully categorized, separated between business and personal, and closed each month with a profit and loss and balance sheet you can rely on.

How long should a small business keep records?

The IRS generally suggests three years for most records and at least four years for employment tax records. Some records, such as those for property you still own, should be kept longer.

Do I need separate books for each business?

Yes. If you own more than one business, the IRS expects a complete and separate set of records for each one.

Sources

1. IRS, Publication 583, Starting a Business and Keeping Records
2. IRS, Common questions about recordkeeping for small businesses
3. IRS, Publication 463, Travel, Gift, and Car Expenses

This article is for educational purposes only and is not tax, legal, or investment advice. Tax rules change and depend on your specific facts. Talk with a qualified professional before acting on anything here.