Month-end in half an hour instead of three evenings

Three evenings of an hour and a half each is four and a half hours a month. Half an hour is a ninth of that. The difference is not made on closing day but on the thirty days before it, and at one single point: whether a document was filed on the day it arose, or only when it was needed.

This article contains almost no law. It describes a routine: what happens during the week, what happens at the end of the month, in what order, and which three piles every business gets stuck on.

Anyone sitting down at the end of the month is rarely doing what they think they are. The posting itself — amount, account, date — is a matter of seconds for most documents. The time goes beforehand, and it goes into three holes.

The first is dispersal. Documents rarely sit in one place. They sit in a wallet, an inbox, a supplier's portal, the till drawer, the vehicle, and an app that produces a direct debit and puts the invoice somewhere else. Each of those places has to be emptied separately, and if you forget one, you only notice at the bank reconciliation — which is why every shortcut here starts with a filing system the document reaches on the day it arises.

The second is lost context. A document you file in the same week needs no explanation — you still know what it was for. The same document six weeks later is a small investigation: which job, which vehicle, which customer, was that private or business? Same action, several times the time.

The third is deferred decisions. The document with no obvious cause, the payment with no invoice, the debt outstanding for eight weeks: those are not posting questions, they are decisions. Push them to closing evening and you bundle three to five unpleasant decisions into one appointment — which is exactly what people avoid, and why one evening becomes three.

Everything that follows aims at those three holes. Not at working faster.

The half hour at month-end exists only if something small happens regularly beforehand. One fixed appointment a week, ten minutes, always on the same weekday — across four or five weeks that stays under an hour in total and still replaces most of the searching.

Three movements, always in this order:

1. Empty every source. Write out the list of your document sources once and work through it doggedly every week. The list is shorter than it feels, usually five to seven entries — and it is why nothing turns up in the bank reconciliation that nobody recognises.
2. Name it and file it. Do not stack, do not “sort later”. The document gets its name and its place while you still know what it was about.
3. Flag anything unclear straight away. Where you hesitate, add one line of context — “spare part for job 4412”, “deposit, invoice to follow”. That line is the cheapest sentence of the whole month: ten seconds to write, twenty minutes saved later.

To that add a habit on the outgoing side that pays even better: write invoices on the day of the work, not at the end of the month. That shortens not only the close but also the time to payment. Where jobs sit in a system anyway — whether that is the appointment software of a salon like Salon Wizard or the Werkstattsystem invoicing — the invoice is a confirmation of what has already been captured, not a second capture.

The close is not a piece of thinking, it is an order. It works because each step prepares the next — and because you do not jump back.

Thirty minutes together — provided step one finds nothing new. That is the entire achievement of the weekly routine: it turns the close from a search into a check.

The bank reconciliation deliberately comes first and not last. It is the only check that finds gaps you do not yet know about — and if it finds something, you want the other twenty-five minutes still ahead of you.

Three things turn up in every business, and none of the three is a posting question. Each needs a fixed rule that you make once and then stop discussing.

The unclear document. Present, paid, but nobody remembers what for. Rule: it gets one line of context when filed, or it does not go into the filing. Keep that up for three months and you have not shrunk the pile, you have abolished it.

The missing document. The bank statement shows a payment with nothing behind it — often a subscription, a portal purchase or a card payment. Rule: request it from the provider immediately, in the same moment the gap appears. “I'll deal with that tomorrow” is the sentence the pile is made of. And the longer it takes, the harder old invoice archives are to get into.

The unpaid item. An invoice is overdue, and the question is not how to post it but what to do. Rule: three options, every month, without exception — remind, chase formally, or write off and reconsider the relationship. What is not on the list is “leave it”. A debt that has sat unremarked for six months is no longer a debt but a decision nobody has taken.

Those three rules cost no extra time together. They only move work to where it is small.

The real gain is not the time saved. It is what a regular close makes visible and an irregular one does not.

A single month's figure says little. Three months side by side say a great deal, because they show directions rather than amounts. So note the same three numbers every month in the same place:

• Turnover — not as a success report but as a comparison with last month and with the same month last year.
• Spending — split into recurring and one-off, because only the first group can be planned.
• Outstanding debts — total and oldest date. The oldest date is the more telling of the two.

From the third round on you notice things that are invisible in daily work: that a subscription is running which nobody uses any more; that one group of customers regularly pays later than the rest; that a month which felt full brought in less than a quieter one. Those are business decisions, not bookkeeping — and they have been sitting the whole time in the same documents that otherwise only get filed.

For the numbers to stay comparable, the close has to happen at the same point each time. A fixed date in the first days of the following month beats a better date that never happens.