15 August 2025
Managing invoices, expenses, receipts and payments is a constant challenge for freelancers and small business owners. Disorganisation can cost you money. But are you tracking billable expense income?
If not, you could already be losing money without even knowing it.
However, it is likely that you are unaware of what this term means, which is why you do not keep track of your billable expense money. How can you monitor this income and make sure you are getting paid if you don’t know what it is? In this blog, UASA IP explains the types of billable expenses freelancers should be aware of and the importance of including them in invoices.
What is Billable Expense Income?
There are very few businesses that do not have expenses. These costs are frequently incurred as part of regular business operations. Paying for software licenses, office supplies or internet access are a few examples of this. These purchases are typically referred to as business expenses. Sometimes, though, a business makes a purchase on behalf of a client. When such a purchase is made, it’s called a billable expense.
The money that a client pays to reimburse costs incurred on their behalf is known as billable expense income. In the world of freelancing, the idea of billable expense revenue is fairly widespread. It is important to note that billable expense income isn’t guaranteed. Reimbursement for purchases incurred on your client’s behalf must be included in your contract from the start.
Below are the most common sources of billable expense income that freelancers should note:
Client communication
Your contract should cover all your billable hours, including client communication, if you charge a flat rate. If you bill by the hour, track every minute spent on the client’s project. This means conference calls, emails, and in-person meetings. If you don’t track and invoice this time, you give away your hours for free.
Planning and research
If you work in a creative field, don’t dismiss your initial ideas or market research as unfinished work. These steps are crucial to your final results. Time spent researching and developing ideas for clients is as valuable as time spent talking to them. Include this time in your billable hours to get paid for your effort.
Materials and services
Lastly, most billable expenses are materials and services. These are common but often overlooked. The materials and services you buy for clients will differ by field. A billable expense is any good or service purchased for a single customer and is not intended to be used for other clients. If a customer keeps an item after the work is done, it is also a billable charge.
You may feel frustrated about adding another bookkeeping task. But tracking income from chargeable expenses is not difficult. Most bookkeeping software tracks typical business spending. This helps with quarterly taxes but does not always track billable expenses. So, you must manually record billable expenses or include them in your contract from the start.