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The 15-Minute Monthly Bookkeeping Routine

May 12, 2026 · 4 min read

Bookkeeping has a compounding problem: skip one month and the next takes twice as long. Do it monthly and it's genuinely a coffee-length task. Here's the routine, in order.

Minute 0-3: Categorize the strays

Open your transactions and filter to uncategorized. If you're using categorization rules, this list should be short, a few new payees at most. Categorize them, and when you spot a payee you'll see again, make it a rule so next month it files itself.

Minute 3-6: Sweep the receipts

Any paper receipts still in your wallet or inbox? Photograph them now, while you still remember what they were. If your tool auto-matches receipts to transactions, this is seconds per receipt. The goal: every notable expense has its evidence attached before you forget the story behind it.

Minute 6-9: Reconcile the balances

Compare what your books think each account holds against what the bank says. If they match, move on. If they don't, the culprit is almost always one of three things: a missed transaction, a duplicate import, or a transfer counted as income or expense. Find it now, a one-month-old discrepancy is easy; a six-month-old one is archaeology.

Minute 9-12: Chase what you're owed

Open invoices, oldest first. Anything past due gets a friendly nudge today, a customer statement PDF does the job without awkwardness. Then glance at bills: what's due before your next session?

Minute 12-15: Read one report

Just one: the monthly view, money in, money out, net. Compare it to last month. If something jumped, click into the category and understand why. This is the whole point of the previous twelve minutes: numbers you trust enough to act on.

That's the routine. The secret isn't discipline, it's that automation does the first ten minutes for you if you let it.

Books that keep themselves

SmallBooks automates the habits in this article, bank feeds, rules, receipt reading, and reports. Free during early access.

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