How to Review Your Business Expenses Each Month

Most small business owners know they should be reviewing their expenses regularly. But between client work, admin, and everything else on the to-do list, it tends to get pushed to the bottom of the pile.

The problem is, when you're not regularly checking where your money is going, small leaks can quietly add up. A subscription you no longer use, a supplier you could renegotiate with, a category of spending that's crept higher than you realised — these things don't show up unless you look for them.

The good news is that a monthly expense review doesn't have to be complicated or time-consuming. Here's a simple approach that actually works.

Step 1: Pull Your Expense Report

Start by running a profit and loss report (or an expenses report) for the month from your accounting software — whether that's Xero, MYOB, QuickBooks, or another platform. This gives you a clear, categorised view of everything your business spent during that period.

If your bookkeeping is up to date, this should take about 30 seconds. If it's not, that's a sign the review process needs some support — and it's worth addressing, because without accurate records, you're essentially guessing.

Step 2: Check Each Category Against Last Month

Go through each expense category and compare it to the previous month (and, where possible, the same month last year). You're looking for anything that stands out — either higher than expected or different from the pattern.

Ask yourself:

• Has anything increased significantly? If so, why?
• Are there categories that are consistently growing? Is that expected?
• Are there any one-off expenses this month that won't recur?
• Are there any expenses you don't immediately recognise?

You're not trying to cut every dollar — you're just trying to make sure your spending is intentional and understood.

Step 3: Review Your Subscriptions and Recurring Costs

Subscriptions are one of the easiest areas to overspend without noticing. Software tools, memberships, platform fees — they often renew automatically, and it's easy to keep paying for something you've stopped using.

Once a month, run your eye over your recurring charges and ask:

• Am I still actively using this?
• Is there a cheaper plan that would meet my needs?
• Is there overlap between two tools that do similar things?
• Has this price increased since I first signed up?

This is also a good time to check whether any annual subscriptions are coming up for renewal. If you want to cancel, doing it before the renewal date means you avoid paying for another full year.

Step 4: Check Your Supplier Costs

If you regularly purchase from the same suppliers — whether that's stock, materials, or services — it's worth periodically reviewing whether those costs are still competitive. Prices change, and your suppliers may have updated their rates without making it obvious.

This doesn't mean you need to switch suppliers constantly — strong relationships have real value. But having visibility over what you're paying means you can have informed conversations when it's time to renegotiate.

Step 5: Compare Expenses to Your Revenue

It's not just about the dollar amounts — it's about your expense ratio. If your revenue is growing, some increase in expenses is expected and healthy. But if your expenses are growing faster than your revenue, that's a signal worth paying attention to.

A simple way to track this is to look at your total expenses as a percentage of your total revenue each month. Over time, you'll develop a sense of what's normal for your business — and you'll spot it more quickly when something drifts.

Step 6: Flag Anything That Needs Following Up

As you go through the review, keep a simple list of anything that needs attention. This might include:

• An unrecognised transaction to investigate
• A supplier invoice that looks higher than usual
• A subscription to cancel before the next renewal date
• An expense you want to recategorise or query with your bookkeeper

Having a clear action list means nothing slips through the cracks — and it keeps your review process moving forward rather than getting stuck.

How Long Should This Take?

If your books are up to date and well-categorised, a monthly expense review should take around 20–30 minutes. It's not a big commitment — but the clarity and control it gives you is well worth the time.

If you find yourself spending hours trying to make sense of messy records, or you're not sure where to start, that's a sign your bookkeeping setup needs some attention. Getting your records in order first means the review becomes quick and straightforward — and it stays that way.

The Bottom Line

A regular expense review is one of the simplest things you can do to stay across your business finances. It keeps your spending intentional, helps you catch problems early, and gives you accurate information to make better decisions.

You don't need to cut costs for the sake of it — you just need to know where your money is going. And once you do, you're in a much better position to grow your business with confidence.

If you'd like help getting your books in order so these reviews become easy and useful, we'd love to chat.