Chart of Accounts: What Is It, and How Does It Work for Small Businesses?

Setting up a chart of accounts for small businesses is essential for managing finances, even if the process itself isn’t always intuitive. The difference between a chart that’s structured properly and one that’s simply “good enough” can be significant.

The details matter. When your chart of accounts isn’t quite right, your financial reports won’t be quite right either. And when your reports aren’t quite right, it becomes harder to make the right decisions for your business. Bookkeeping becomes inefficient, and cleaning up your financial data after the fact tends to be more difficult the more time passes.

When your chart of accounts is right, your reporting becomes clearer and more actionable. You can use your reports for decision-making, without having to worry that you’re working from misleading or inaccurate data. 

This article will explore a few key aspects of setting up your chart of accounts, including the main account types you need to know and how to set up QuickBooks for your business.

What Is a Chart of Accounts and Why Does It Matter for Small Businesses?

A chart of accounts (COA) is a highly organized, numbered index of every financial account that appears in a company’s general ledger, including assets, liabilities, equity, revenue, and expenses. It’s used for categorizing transactions and serves as a sort of roadmap for financial reporting and analysis.

In small business accounting, a properly-configured chart of accounts is what ensures that financial reports are accurate and up to date. Without it, you run the risk of misclassified transactions, which can cause internal inefficiencies and trigger IRS audits. Your reports wind up skewed and unreliable, leading to distorted profit margins and misrepresented tax liabilities.

In other words, getting your chart of accounts right matters a great deal.

In addition to providing a well-rounded picture of their company’s financial health and contributing to accurate reporting, a correct COA enables better cash flow visibility, simplifies tax prep and compliance, and improves decision-making.

How Is a Chart of Accounts Different from a General Ledger?

While the terms “chart of accounts” and “general ledger” are sometimes used interchangeably, they are not quite the same. Think of it this way: If your chart of accounts is the index of accounts, your general ledger is the full record. 

Put another way, the COA is a framework in which you define your accounts, and the general ledger is where you record individual transactions according to those categories.

Imagine your COA designates an “Office Supplies” account. That account simply serves as a label (or an item in the index). Every time you purchase printer paper or other office supplies, those transactions get recorded in the general ledger under that account. 

So while the COA provides the categories, the general ledger serves as a complete, chronological transaction history organized by account. Both are ultimately required for accuracy. 

What Are the Five Main Account Types in a Chart of Accounts?

A well-built chart of accounts consists of five account types: Assets, Liabilities, Equity, Revenue, and Expenses. Here’s what each one covers:

• Assets: What your business owns or is owed. Common sub-accounts include checking and savings accounts, accounts receivable, inventory, and prepaid expenses (like insurance paid in advance).

• Liabilities: What your business owes to others. Examples include accounts payable, credit card balances, payroll liabilities, and any outstanding loans.

• Equity: The owner’s stake in the business (what’s left after liabilities are subtracted from assets). For small businesses, this typically includes owner’s equity or retained earnings.

• Revenue: Income from core business activities. Depending on the business, there may be a single revenue account or multiple (broken down by product line or service type, for example).

• Expenses: Costs of running the business. These can include payroll, rent, software subscriptions, marketing costs, and professional fees.

What’s the Difference Between Balance Sheet Accounts and Income Statement Accounts?

Of the five account types that appear in a chart of accounts, the first three (Assets, Liabilities, and Equity) are considered balance sheet accounts; Revenue and Expenses belong on income statement accounts. 

The biggest difference between balance sheet and income statement accounts is the timeframe they capture, worth considering when reviewing QuickBooks reports. While balance sheets provide a snapshot of a company’s financial position at a specific date, income statements tell the story of company performance over a monthly, quarterly, or annual timeframe. 

Of course, the reliability and usefulness of your financial reports depend on whether you’ve structured your COA properly. An incorrect COA setup runs the risk of misclassified transactions, which cause inaccurate reporting and skewed tax liabilities, and make financial planning more difficult. COA errors can distort balance sheets by misstating assets, liabilities, and equity and contribute to income statements with incorrect net income calculations. And the problems only compound from there if these mistakes aren’t identified and addressed early on.

How Does Account Numbering Work in a Small Business COA?

Most businesses use an account numbering system to keep their chart of accounts organized. These systems commonly make use of four-digit numbers and neatly align with the five account types; that way, it’s easy to tell which category an account belongs to based on the first digit of the account number.

• Assets: Numbered 1000 to 1999
• Liabilities: Numbered 2000 to 2999
• Equity: Numbered 3000 to 3999
• Revenue: Numbered 4000 to 4999
• Expenses: Numbered 5000 to 5999

While four digits is the convention, small businesses with fewer than 250 accounts can often get by using three-digit account numbers. And larger or more complex organizations sometimes use five-digit account numbers to accommodate more granular sub-account structures.

One last note on COA numbering systems: It’s often recommended to leave gaps within the account numbering sequence (assigning numbers 5100, 5200, and 5300, for example, rather than 5100, 5101, 5102). That way, you can add sub-accounts later without having to renumber existing accounts. It’s a structural distinction that can make things a little easier as a business grows or becomes more complex over time.

How Do You Set Up and Customize a Chart of Accounts in QuickBooks?

If you’re like the majority of small businesses and use QuickBooks as your accounting platform, one of the first things you’ll need to do is set up your QuickBooks chart of accounts. During the initial QuickBooks setup process, the software will automatically generate a default COA based on the business type you’ve selected. 

It helps to think of the default COA more like a template than a workable chart of accounts. It’s simply too generic to be useful as anything other than a starting point. 

For example, depending on the needs of your business, the default COA may be too simple or too complex, and the default categories may not map directly to tax return categories, creating extra year-end work. That’s why it’s so important to customize the chart of accounts in QuickBooks, rather than going with the default.

Within QuickBooks, it’s relatively easy to add new accounts and sub-accounts, edit existing ones, and remove accounts as needed. There is also the option to import an existing COA by uploading an Excel or CSV file, saving significant time versus building it manually.

What Mistakes Do Small Businesses Make When Setting Up Their Chart of Accounts?

There are a few common mistakes small businesses make, with the most common being the creation of too many or too few accounts. 

You might think the more accounts you create, the more granular your reporting. While that might be true to a certain point, when your COA becomes too granular and includes hundreds of line items, it becomes nearly impossible to navigate. It also produces cluttered reports.

Including too few accounts, on the other hand, often results in reporting that isn’t quite detailed enough to be very useful.

A few additional common errors include:

• Deleting accounts mid-fiscal year: QuickBooks allows this, but this practice can distort your year-to-date reporting and create tax time headaches. Instead, it’s best to designate unused accounts as “inactive” rather than deleting them outright.

• Mixing personal and business accounts: This error is especially common among early-stage businesses, but it can create problems for small businesses by compromising the accuracy of financial reports and creating tax prep challenges.

• Failing to align the COA with how the business is organized: If your chart of accounts doesn’t reflect your actual revenue streams and cost structure, your financial reports won’t be as reliable as they could be. If your business has multiple service lines, for example, your account structure should reflect the distinction.

The problem with a chart of accounts that isn’t quite set up right isn’t necessarily that it’s unusable, but it does make things harder than they need to be. And COA problems don’t just go away; they compound, as miscategorized expenses make your profit and loss statements unreliable, and an unclear account structure can make tax prep slower and more expensive.

If your business has multiple service lines, for example, your account structure should reflect the distinction. Subscription businesses have their own considerations here; see our guide to building a SaaS chart of accounts for how to handle recurring and deferred revenue.

When Should a Small Business Get Professional Help With Its Chart of Accounts?

Some small businesses, especially those with a straightforward business model, manageable transaction volume, and a skilled in-house bookkeeper, can set up and manage their chart of accounts effectively. As businesses scale, though, a more comprehensive approach is often needed, leading many small business owners to explore outsourced accounting services.

That’s where a firm like Milestone enters the picture. In addition to outsourced accounting, Milestone’s System Design and Implementation team provides a wide range of services for getting your accounting infrastructure, including your QuickBooks chart of accounts, set up correctly from the start. 

Rather than hoping for the best and addressing issues as they surface, Milestone serves as a dedicated accounting partner that understands the strategic side of running a business, the technical side of QuickBooks, and how the two intersect.

If your chart of accounts feels more like a liability than a tool, it’s worth having the conversation to learn more about how Milestone can help you set up and implement QuickBooks in a way that’s customized and ready to scale and adapt alongside your business. Contact Milestone’s team to learn more.