9 Common Business Expense Mistakes Freelancers Make

Business expenses are a normal part of running a business, but many freelancers stumble when it comes to managing them. From not knowing what's deductible to forgetting to keep receipts, small missteps can add up quickly.

The result is a fuzzy picture of where your money is going, surprise stress at tax time, and billable expenses that never make it onto a client invoice.

If any of that sounds familiar, or you just want to make sure you're not leaving money on the table, you're in the right place. Here are nine of the most common business expense mistakes freelancers make, and how to avoid them.

1. Not knowing what expenses are tax-deductible

Some freelancers don't know what tax deductions or tax write-offs are, or that they're even eligible for them. Others have a general sense but aren't sure what expenses actually qualify.

Tax rules vary by region and change regularly, which only adds to the confusion. What's deductible one year may not be the next. For example, in the U.S., the rules around things like meals and entertainment expenses have shifted in recent years.

This knowledge gap can mean missing out on legitimate deductions and potentially overpaying come tax time.

If you want to get clear on what you can and can't deduct, check out this complete guide to small business tax write-offs. In it, you’ll learn that:

2. Failing to use a robust expense tracking system

The way you record expenses is just as important as actually recording them. If you track expenses in a spreadsheet and keep a shoebox full of receipts, you're probably:

The right business management software takes the headache out of manual expense tracking. A good tool will:

3. Being completely hands-off with expense tracking

Good business software can automate a lot of your expense tracking, but that doesn't mean you can set it and forget it.

No matter how capable the tool is, it still needs your input from time to time. Cash transactions are a good example of where automation hits its limits. If you withdraw money from your business bank account, that transaction will show up on your records. But without a note from you, there's no way to know what the purchase was for or which expense category it belongs to.

Automation handles the heavy lifting. You just need to stay in the loop for the details that it can't fill in on its own.

4. Not keeping receipts

Skipping receipts might seem harmless in the moment, but it can cost you. Missing documentation means you may forget to claim legitimate expenses as deductions. And if you're ever audited, you'll want records to back up your claims.

Most tax authorities require businesses to keep receipts for a set period, often several years, and sometimes longer if the expense relates to an asset like a building or piece of equipment that's still in use. Check the requirements in your region so you know exactly how long to hold onto receipts.

Fortunately, keeping receipts doesn't have to mean drowning in paper. Whether you prefer a filing cabinet, a folder on your computer, or a mix of both, consider backing up everything to the cloud. Expense-tracking software lets you photograph receipts on the spot and store them in a central, searchable location. When tax time comes, you're ready.

5. Not charging clients for reimbursable expenses

From time to time, you might buy supplies, book travel, or cover a software subscription to complete a client project. Do you invoice the client for it?

Many freelancers aren’t aware of what’s reimbursable or forget to bill for it in the rush of wrapping up a project. Either way, you end up covering costs that should have been passed on to the client.

As a result, they often pay out of pocket. If this sounds like you, then it’s time to come to grips with these pesky expenses.

Reimbursable expenses, or billable expenses, are expenses that you incur on your clients’ behalf while delivering work. They're not your expenses to absorb; they belong on the invoice.

To get a full picture of how this works, read our comprehensive guide to reimbursable expenses. In it, you’ll learn:

6. Not tracking mileage to customer visits

One commonly missed deduction is mileage. Most freelancers think of mileage deductions, in terms of conference travel or driving to sales presentations, but the trips don't stop once you've closed the deal.

Every visit to a customer's office, supply run, and drive made for business purposes could be a deductible expense. Those miles (or kilometers) add up quickly, and without a system to capture them, they're easy to lose.

The simplest way to stay on top of this is a mileage tracking app. To make this easy for you, the FreshBooks app, available for iOS and Android. It includes a built-in mileaage tracker that automatically logs trips as you drive and lets you categorize them as business or personal. You'll always have an accurate record ready when you need it.

There are also dedicated apps worth exploring for mileage tracking. Just make sure whatever tool you choose integrates with your business software so your records stay in sync.

7. Not maintaining proper records of expensed business meals

Business meals are a commonly overlooked deduction, and an easy one to lose out on simply due to poor record-keeping.

In many regions, meals that serve a clear business purpose may be partially or fully deductible, though the rules around eligibility and how much you can claim vary depending on where you're based. What's consistent across the board is that documentation matters. Without it, even a legitimate business meal can become a missed deduction.

To protect your claim, keep accurate records that clearly support the business purpose of every meal. That means noting:

A photo of the receipt with a quick note jotted on the back (or added as a digital note) is usually enough to cover your bases. And speaking of receipts, always keep a digital backup. The ink on paper receipts fades faster than you'd expect, and an illegible receipt is as good as no receipt at all.

8. Not expensing shared utilities

Shared utilities are another commonly missed business expense. They're easy to overlook simply because they're bundled into your everyday home bills.

Think about it: a portion of what you pay for gas, electricity, water, internet, cleaning supplies, phone service and internet goes toward keeping your home office running. In many regions, that portion may qualify as a deductible business expense.

The typical approach is to calculate what percentage of your home your office occupies, then apply that percentage to your utility bills. For example, if your home office takes up 10% of your home's total floor space, roughly 10% of those shared bills could be deductible.

Eligibility and calculation methods vary by region, so be sure to check the rules where you're based or ask your accountant. Either way, these costs can add up to quite a bit of money when it's time to file your taxes. Start tracking them now so you're not scrambling to reconstruct bills when tax time comes.

9. Not getting help

Business expenses can be complicated, and unless you’re a freelance accountant, chances are your area of expertise lies elsewhere.

If you feel overwhelmed by the scope of tracking, categorizing, and reporting expenses, you don't have to figure it all out alone. Bringing in an accountant or bookkeeper can take the pressure off.

Yes, there's a cost involved. But the time you save and the additional deductions a professional might catch make it a worthwhile investment. Think of it less as an expense and more as one that pays for itself.

Not sure whether you need an accountant or bookkeeper? Our guide to bookkeeping vs. accounting breaks down the difference and can help you figure out which kind of support makes the most sense for your business.

The bottom line on business expense mistakes

Mistakes happen. But when it comes to business expenses, most of them are entirely avoidable.

Now that you know what to watch out for, you're already ahead of the game. With a little organization and the right tools in place, you can stay on top of your spending, catch more deductions, and walk into tax time feeling prepared rather than panicked.

And if you do slip up on one of these somewhere down the line, that's okay. You're only human, and now you know exactly how to course correct.

Looking for a simpler way to track expenses and stay on top of your finances? FreshBooks helps small business owners manage expenses, capture receipts, and keep their records organized, all in one place. Try FreshBooks free today.