Blog | PLS Balance My Books

The 20-Minute Monthly Bookkeeping Reset

Written by Paul Stansberry | May 11, 2026 12:57:07 PM

Simplify your bookkeeping with a 20-minute monthly reset. Stay organized, reduce future headaches, and keep your finances in check with these essential tips.

You do not have to spend hours on your bookkeeping every month to stay more organized. In fact, one of the best things a small business owner can do is much simpler: set aside about 20 minutes at the end of each month, or right after the month closes, for a quick bookkeeping reset.

The goal is not to fully close your books yourself, but rather to gather the obvious information while it is still fresh, easy to find, and not buried under three months of receipts, bank transactions, and “I’ll deal with that later” energy.

Future you will appreciate it.

So will your bookkeeper. 😉

Start with your receipts

First, gather your receipts. Check your wallet, glove box, desk, purse, center console, email inbox, photo roll, and that one suspicious pile of papers you created when you were “cleaning up” before company came over (You know the pile.).

For digital receipts, save them somewhere accessible or take screenshots before they disappear into the abyss. (Bonus tip: Scan the physical ones and make them digital.)

Upload or save receipts for things like:

  • Meals
  • Fuel
  • Supplies
  • Equipment
  • Software
  • Repairs
  • Travel
  • Client-related purchases
  • Unusual or one-time business expenses

It is better to have the receipt and not need it than to need it and not have it.

A bank feed may show that your business spent money at Walmart, Amazon, Lowe’s, Costco, or a restaurant, but it does not explain what the purchase was actually for. Was it office supplies? Materials? Tools? A client meeting? Something personal that accidentally hit the business card? The receipt tells part of the story. A quick note tells the rest.

Make notes on anything unusual

If something happened this month that your bookkeeper would not automatically understand, make a quick note.

This does not need to be complicated. You do not need to write a novel, prepare a sworn affidavit, or create a 12-tab spreadsheet named “Bookkeeping Notes Final FINAL v3.” Just add enough context so the transaction makes sense later.

Examples of things worth noting include:

  • A large equipment purchase
  • A refund from a vendor
  • A personal charge accidentally made on the business card
  • A customer deposit
  • A loan payment
  • A transfer between accounts
  • A reimbursement
  • A payment that covered multiple invoices
  • A purchase that included both business and personal items

The goal is to prevent the dreaded “what was this?” message three months from now. Because let’s be honest, if you cannot remember what that random $187.43 charge was this week, you definitely will not remember it in August.

Review unpaid invoices

If your business sends invoices to customers, take a quick look at what is still unpaid.

This does not have to turn into a full collections project. Just review what is sitting out there and ask a few basic questions.

  • Are there any invoices overdue?
  • Do any customers need a reminder?
  • Were payments received but not matched to the invoice?
  • Are there invoices that need to be corrected?
  • Are there old invoices that are probably no longer collectible? 

The older an invoice gets, the more awkward it becomes. A quick monthly review helps you catch issues before they turn into uncomfortable follow-ups or cash flow surprises.

Review unpaid bills

Next, check what your business owes. This helps you understand what cash is already spoken for before you make decisions based only on the current bank balance.

Look for things like:

  • Vendor bills
  • Credit card payments
  • Loan payments
  • Sales tax payments
  • Payroll-related obligations
  • Subscriptions
  • Insurance payments
  • Upcoming automatic drafts

Your bank balance alone does not always tell the full story. You may have money in the account today, but if several bills, tax payments, or payroll expenses are coming due, that cash may already have a job.

A quick review of unpaid bills helps prevent surprises and gives you a more realistic picture of your business cash flow.

Check for personal expenses

Personal expenses in the business account create confusion fast.

Sometimes it happens by accident. You grab the wrong card. A saved payment method gets used. Amazon does Amazon things. We have all seen it. The key is to catch it early.

If you accidentally used the business card for something personal, make a note right away. It is much easier to identify and clean up now than it will be months later when the transaction is just another mystery line in the bank feed.

Mixing personal and business expenses can make your reports less reliable, slow down your bookkeeping, and create extra cleanup work. A quick monthly check helps keep things cleaner.

Answer questions before they pile up

If your bookkeeper has sent questions, answer them while the month is still fresh.

A transaction that seems obvious today may be completely mysterious 60 days from now. Quick answers help keep your books current, reduce back-and-forth, and prevent small questions from turning into a backlog.

This is one of the easiest ways to help your bookkeeping process run more smoothly.

No one enjoys opening a long list of old transaction questions and trying to remember what happened three months ago. That is not bookkeeping. That is financial archaeology.

Small habits prevent big cleanup projects

A 20-minute monthly reset will not replace a full bookkeeping process, but it can make a big difference. When receipts are saved, notes are made, invoices are reviewed, bills are checked, personal expenses are flagged, and questions are answered quickly, your books are much easier to keep current.

Small habits now can prevent expensive cleanup later.

 

At PLS Balance My Books, we help small business owners stay organized, understand their numbers, and avoid the last-minute scramble. If your books need a reset, or if you are tired of trying to keep up with everything yourself, we can help you get back to a known-good starting point.