What Are Classes in QuickBooks Online? When to Use Them and How They Help Your Books

If you’ve ever looked at QuickBooks Online settings and wondered whether you really need to turn on Classes, you’re not alone. They’re powerful, but only when used for the right reasons.

Used correctly, classes can give you clearer reports and better insight into how different parts of your business are performing. Used incorrectly, they can make your books harder to maintain.

Let’s walk through what classes are, when to use them, and when you probably shouldn’t.

What Are Classes in QuickBooks Online?

Classes are a way to track income and expenses across different parts of your business without creating a complicated chart of accounts.

Think of classes as labels that sit on top of transactions.

They allow you to answer questions like:

• Which service line is most profitable?
• How much did this project or program cost?
• Are certain departments losing money?

Classes do not replace accounts.
They add context to them.

Examples of How Classes Are Commonly Used

Classes are often used to track:

• Programs or services (Consulting vs Training)
• Departments (Admin, Sales, Operations)
• Locations (Office A vs Office B)
• Grants or funded programs
• Projects or job types (high-level)

The key is consistency and simplicity.

When You Should Use Classes

Classes work best when:

• You need separate profit and loss reporting for parts of your business
• The same expense types apply across multiple areas
• You want cleaner reports without duplicating accounts

Good use cases:

• Nonprofits tracking multiple programs
• Businesses with multiple service lines
• Companies that want departmental P&Ls
• Grant-funded organizations needing program reporting

When You Should Not Use Classes

Classes may not be a good fit if:

• You only need basic income and expense tracking
• You won’t use them consistently
• You already track this another way (like Projects)
• You’re trying to fix messy books retroactively

Classes are not meant to:

• Replace customers or vendors
• Fix poor account structure
• Track every tiny detail

If you don’t actually need separate reporting, classes can add unnecessary complexity.

How Classes Help Your Books

When set up correctly, classes help by:

• Keeping your chart of accounts simple
• Allowing meaningful Profit & Loss reports by class
• Making it easier to analyze performance
• Reducing the need for extra spreadsheets

You can run reports like:

• Profit & Loss by Class
• Expenses by Class
• Income by Class

This gives you better insight without overengineering your books.

How Classes Work in Day-to-Day Bookkeeping

Once classes are turned on:

• Each transaction can be assigned a class
• Income and expenses are tagged consistently
• Reports can be filtered or grouped by class

Important note:
Every transaction doesn’t have to use classes — but if you turn them on, you should have a clear rule for when they are required.

Common Class Mistakes I See

Some of the most common issues:

• Too many classes
• Classes that overlap with accounts
• Inconsistent usage
• Changing class names mid-year
• Using classes when Projects would be a better fit

These mistakes usually lead to confusing reports and extra cleanup work later.

Classes vs Projects: Not the Same Thing

This comes up a lot.

• Classes are best for high-level tracking across your business
• Projects are better for detailed job or client-level tracking

Using the wrong tool for the job can make reporting harder, not easier.

Final Thoughts on Using Classes in QuickBooks Online

Classes can be incredibly helpful — but only when there’s a clear purpose behind them.

Before turning them on, ask:

• What question am I trying to answer?
• Do I actually need separate P&Ls?
• Can I maintain this consistently?

If the answer isn’t clear, it’s okay to pause.

Not Sure If Classes Are Right for Your Business?

If your QuickBooks reports feel cluttered, confusing, or harder than they should be, it’s often a structure issue — not a data issue.

I help small businesses decide when classes make sense, how to set them up cleanly, and when to use a different approach instead. If you’re unsure, feel free to contact me through my website.