Bookkeeper for Administrative Support Companies

How does the bookkeeping handle hourly billing?

Your billing comes in as a series of hourly invoices, and the bookkeeping has to record every one of them and match each payment to the invoice it pays.

An admin support business generally bills by the hour. Upwork lists rates for freelance administrative support at $14 to $20 an hour, and Argosy Business estimated $25 to $75 an hour for specialized admin work. Those are not your rates, but they show the structure: you are selling time, not a flat product. Your bookkeeper records each invoice as a receivable the moment you send it. When the client pays, the bookkeeper matches that payment to the invoice. That way you always know which client's invoice is still open and which one is settled.

What costs matter for an administrative support business?

The cost that matters most is the cost of your time or the time of the people who do the work.

An admin support business spends most of its money on staff, whether they are employees or independent contractors. Indeed's wage data puts administrative assistant pay between $15 and $29 per hour, so if you are paying an employee $15 to $ $20 per hour, that is your direct cost. If you only work yourself, your own hour is the cost, and it has to be real in your thinking even if you do not draw a salary. Your books also need a line for the tools you subscription software, scheduling tools, or any other overhead. Those smaller costs can drain margin if you do not watch them.

What is the most common bookkeeping mistake?

The common mistake is letting invoices and payments go unattended, which turns into cash flow trouble and a client who does not pay.

When you are busy managing someone else's calendar or inbox, it is easy to quietly stop tracking which client has paid and which has not. That is a theme that shows up in owner forums: business owners admit to chasing invoices and keeping track of payments in their head. That kind of bookkeeping failure leaves a cash gap that you may not see until rent or payroll is due. A solid bookkeeping system gives you a simple list of every unpaid invoice, with the client name and how long it has been unpaid. You can then follow up with the client early or adjust your billing schedule for the future.

Why should you track revenue per client?

Because not all clients are the same, and your revenue per client shows you who is worth the time you put in.

If you serve five or twenty clients, the graph of your monthly total may look healthy, but it could be hiding that one client brings in most of your income while another client is only paying for a few hours. When your books break down revenue by client, you see exactly which client gives you the steady monthly work and which one is inconsistent. That detail is what tells you which client you might raise the rate, which client is worth referral or which client you should let go. The book is not just for taxes, it is for the decisions you make about your service mix.

Which reports should you look at every month?

Three reports matter most for an admin support business: your accounts receivable, your profit margin, cash flow.

Accounts receivable tells you how much work you have billed but not yet collected. Profit margin tells you if your hourly rate actually covers what you pay for staff and the platform you use. Cash flow tells you if you have money in the bank to cover your own costs while waiting for those invoices to be paid. Those three numbers together will make your client revenue detail. When accounts receivable grows and cash flow is tight, it means you are doing the work on credit and the client hasn't paid yet. That is the moment to act.