A twenty-minute monthly money review that works

A review that produces no decisions is a ritual. Five checks, twenty minutes, one page of actions.

The short answer

Check what came in against what you expected, not against last month. Expectations are the thing you can act on.
Check what is owed to you and how old it is. Age is the number that decides what to chase.
Check what you have committed to spend in the next sixty days, including tax.
Check one cost you no longer need. One per month is enough to matter over a year.
Write down at most three actions with dates. A longer list will not happen.

The order matters

Income first, because everything else is a proportion of it. Ten minutes if your records are already separated.
Receivables second, oldest first. This is the only section that reliably produces money this week.
Commitments third: tax set aside, annual renewals, anything due in the next two months.
Costs fourth. Cancel one thing, or write down why you are keeping it.
Actions last. Three, each with a date and a name - even if the name is always yours.

What to write down

One page, dated, with the same five headings each month. The value is not in this month's page; it is in being able to lay three of them side by side and see a direction.

Keep the page where you keep the records, not in a notes app you will change next year. If the format survives twelve months, you have a system. If it changes every month, you have a hobby.

The part most people leave out

At the start of each review, read last month's three actions before you look at any numbers. If two of them did not happen, the review is not the problem - the actions were too big, or they were never scheduled.

Carry an unfinished action forward once, with a smaller version of itself. Drop it the second time and write down why. A list that never shrinks stops being read, and then the review quietly becomes a report nobody acts on.

When to skip a section

Nothing overdue? Say so in one line and move on. An empty section is information.
A month with an unusual event deserves a note, not a new format. Annotate the anomaly so next year's comparison is honest.
If the review takes more than twenty minutes twice running, the records are the problem, not the review.

The free tool for this

How long a goal takes at a set amount - How long a goal takes at a set amount. It runs in the page, asks for your own numbers, and sends nothing anywhere.

If you would rather not build it yourself

Money OS keeps the running totals and the categories between reviews, so the twenty minutes are spent deciding rather than adding up. Claude Code Workflows for Personal Finance - 8 Commands + Ledgers (Money OS) is $34. See it on the shop, and there is a plain page about it here: what it holds.

Questions people actually ask

Is monthly often enough?

For most one-person businesses, yes - provided you chase overdue invoices when they age rather than waiting for the review. The review sets direction; it should not be your only look at the numbers.

What if I dread doing it?

Shorten it. Ten minutes on income and receivables only, done every month, beats a full review you postpone for a quarter.

What to check in a twenty-minute monthly money review