The Monthly Money Check Every Founder Should Run
You sent the invoices. You paid the bills. The bank balance looks fine.
So you close the laptop and move on to next month.
And you have no real idea whether the month you just finished actually worked.
Most founders never close a month, so they only find out something was off weeks later. Here is a simple monthly money check, about an hour, that tells you what to track and whether last month was healthy.
A bank balance is not a verdict
Your account tells you what happened, not whether it was good.
A bank balance shows money that has already arrived and hides almost everything that matters. It says nothing about what you are still owed, what you have committed to pay, or whether the work you delivered actually made a margin. You can have a comfortable balance and a quietly broken month sitting underneath it.
This is why cash surprises are so common, and why so few founders see them coming.
A monthly money check is the stop. It is one short, fixed habit that turns a pile of transactions into a clear answer: was last month healthy, and what needs attention now.
What a monthly close actually is
Closing a month means agreeing on what really happened.
In a finance team, the month end close is the routine where you reconcile the accounts, make sure every transaction is recorded correctly, and produce a clean set of numbers you can trust. I do this for a living. The reality is that the full version is far more than a founder running a five person business needs.
The founder version keeps the discipline and drops the overhead. You are not producing formal statements for an accountant. You are answering one question with enough accuracy to act on it. That takes about an hour, once a month, on a fixed day.
A five person web and brand studio in Utrecht, around EUR 28,000 in monthly revenue, run as an eenmanszaak on net 30 terms. A composite, not a real client. For months the founder glanced at the balance, felt reassured, and moved on. The month a large invoice went out late and a btw bill landed at the same time, she found the gap the hard way.
That gap is exactly what a monthly check catches while you can still do something about it.
The six numbers to track each month
Six numbers tell you almost everything about a month.
You do not need a wall of metrics. You need the few that, read together, show whether the business is actually working. These are the six to write down every month, and what each one is really telling you.
What you earned in the month, meaning the work you delivered and billed, not what happened to land in the bank. This is the top line everything else is measured against.
Revenue minus the direct cost of delivering it, shown as a percentage. It answers whether the work itself is profitable before overhead. A margin that slips month on month is an early warning most founders miss.
Your fixed and running costs before your own pay: software, rent, subcontractors, and tools. Watch this for the quiet creep of subscriptions nobody cancelled.
What is left after everything, including a fair wage for you. If your own pay is not in this number, net profit is a flattering fiction.
What is actually in the account, and how many weeks that covers if no new money arrived. This is your runway, and it is the number that lets you sleep or tells you not to.
Everything you have invoiced but not been paid, split into on time and overdue. This is where a profitable month hides an empty account.
A month can look profitable and still leave you short of cash.
The six numbers together show you both at once, which is the whole point of checking them.
If you would rather not build the sheet yourself, the Do-Creates Monthly Financial Dashboard template is set up around these exact six and updates in under 30 minutes. Either way, the numbers are what matter, not the tool.
The one hour routine, step by step
The check itself is a short, repeatable sequence.
Pick one day a month, the same day each time, and work through these in order. Early in the month, once the previous month has settled, works best.
Match what came in and went out against your own records. Anything that does not match is either an error or something you forgot, and both are worth knowing.
Label every uncategorised transaction now, while you still remember what it was. This is the step that makes tax time painless later.
Go through the month's completed work and confirm each piece was billed. Unsent invoices are the most common and most avoidable revenue leak in a small business.
Supplier bills, subcontractors, and tax you have set aside on paper but not yet moved. This is what stops the cash position from lying to you.
Move your VAT and income tax portion into a separate account the moment you close. In the Netherlands, btw is filed quarterly, with 2026 deadlines on 30 April, 31 July, 31 October, and 31 January. Ring fence it monthly and the quarterly bill is never a shock.
One line on what was healthy, one line on what to watch next month. That written verdict is the actual output of the whole exercise.
Back in Utrecht, the founder ran this for the first time and caught two things in one sitting: an unsent invoice worth EUR 3,200, and a gross margin that had drifted from 58% to 49% on her biggest client. Neither was visible in the bank balance.
Make it survive a busy month
The routine only works if it happens when you are slammed.
The temptation is to skip the check in exactly the months that are busiest, which are the months you most need it. Protect it the way you protect a client deadline. Put it in the calendar on a fixed date, block the hour, and treat it as fixed.
When you are underwater, run the short version rather than skipping: cash position, receivables, and tax set aside. Those three take fifteen minutes and cover the risks that actually sink a month. The full six can wait a day, not a month.
And know when to hand it over. Once the business is past roughly ten people, or the transactions outgrow an hour, that is the point to bring in a bookkeeper for the reconciliation and keep the reading for yourself. You can delegate the recording. You should never fully delegate the understanding.
A monthly money check will not make a weak month strong. What it does is make every month honest, and an honest month is the only kind you can actually act on.
Want a clearer read on your numbers
If you want a focused conversation about what your monthly numbers are really telling you and what to change first, book a free 20 minute introductory call. No pitch. No obligations. Just a clear headed look at your numbers.
Book your free 20 minute callDo-Creates works with SME founders on financial clarity and business strategy. This post references a Do-Creates product, the Monthly Financial Dashboard template, which we build and use ourselves. It does not constitute financial or legal advice.