Guide · Bookkeeping

The monthly bookkeeping checklist.

Books don’t drift because owners are lazy — they drift because there’s no routine. Here’s the monthly close, in the order that keeps you current.

Published June 24, 2026 · Updated July 2026 · 6-min read

Why a checklist beats good intentions

Books rarely fall behind all at once. They slip a week here, a busy stretch there, and by the time you look up you’re three months back and the fix is a cleanup instead of a catch-up. The thing that prevents that slide isn’t discipline or a better month — it’s a routine you run the same way every time, whether business was slow or slammed.

A monthly close checklist turns bookkeeping from a vague chore you dread into a defined list you finish. Same steps, same order, done by a set date. The point isn’t bureaucracy — it’s that a routine you can actually complete gets completed, and completed books are the only kind that tell you the truth about your business in time to use it.

This is the exact rhythm we run for clients on our monthly bookkeeping service. If you’d rather understand the whole role before the routine, our guide to what a bookkeeper actually does lays out the job this checklist carries out month after month.

The monthly close, in order
  1. 1
    Step 1

    Match every business bank feed and card against the real statement — no personal charges in the mix.

  2. 2
    Step 2

    Reconcile the month to the penny so the books match reality.

  3. 3
    Step 3

    Code direct costs to the job that caused them, labor burden included.

  4. 4
    Step 4

    Sort receivables by age and chase anything past thirty days.

  5. 5
    Step 5

    Check loan balances and owner draws — keep them off the profit picture.

  6. 6
    Step 6

    Close the month, produce the statements, and actually read them.

Start by matching every bank feed

The close starts with the raw data: every business bank feed and card, pulled in and matched against the real statement for the month. Nothing else is trustworthy until this is done, because a report built on a feed that’s missing transactions is just a confident-looking guess. Match first, analyze later — never the other way around.

This is also where mixed spending shows up and has to be dealt with. A personal charge that slipped onto a business card, a transfer that looks like income but isn’t — each one is a decision someone has to make now, while the memory is fresh, instead of a mystery at year-end. The longer a stray transaction sits, the more expensive it gets to sort out.

The habit that keeps this step short is consistency. When repeat transactions — fuel, the supply house, recurring subs — categorize the same way every month, the feed nearly cleans itself and you’re left only with the handful of items that genuinely need a human. Boring and repeatable is exactly what you want the first step to be.

Reconcile, then code to the job

Once the feeds are in, reconcile them — prove that what the books say matches what the bank says, to the penny. Reconciliation is the step people skip when they’re rushing, and it’s the one that catches the missed charge, the double entry, the transaction that never landed. Skip it and errors compound silently until a loan application or tax season drags them into daylight.

With the month reconciled, code the direct costs to the job that caused them. Materials, labor, and sub payments tagged to the project turn a generic pile of expenses into a read on which work actually made money. For a contractor, this is the difference between books that file taxes and books that improve the next bid.

This is where clean job costing earns its keep. Route every direct cost to its job as part of the monthly close and you never face the year-end scramble of trying to remember which materials went where. The record is built while the work is still fresh, which is the only time it’s accurate.

Coding is also where the small judgment calls live, and doing them monthly keeps them cheap. A payment that could be a repair or a capital purchase, a deposit that might be income or a customer advance — decided this month, with the job still in your head, each takes a moment. Deferred to a once-a-year pile, the same calls become guesswork, and guesswork is exactly what turns a routine close into a cleanup.

Chase receivables and check the balances

Next, look at the money customers still owe you. Pull the list of open invoices and sort it by age — anything past thirty days needs a nudge, anything past sixty needs a phone call. Receivables that quietly age past ninety days are the classic way a profitable-on-paper contractor ends up short on cash, and the only cure is looking every single month.

Then check the balances that owners tend to ignore: loan balances, owner draws, and any equipment financing. These don’t belong in your profit picture, and if they’ve been miscoded as expenses they’ll flatter your numbers and quietly wreck your balance sheet. A quick monthly look keeps them sorted where they belong instead of surfacing as a surprise later.

This receivables-and-balances pass is short, but it’s where cash problems get caught early. A contractor who reviews aging invoices every month sees the pinch coming; one who doesn’t finds out when payroll is due Friday and the progress payment is still three weeks out.

Close the month and actually read it

With the feeds matched, the month reconciled, the jobs costed, and receivables chased, close the month and produce the statements — a profit and loss and a balance sheet you could hand a lender without flinching. That handoff-ready pair is the real deliverable of the whole routine, not the tidy data entry behind it.

Then do the step most owners skip: read what you just produced. Is gross margin holding? Is overhead creeping up as a share of revenue? Did any job run over? Five minutes with the finished statements turns a compliance chore into a dashboard, and it’s where the checklist stops being about neatness and starts being about steering.

That’s the full close, in order, every month. If running it yourself is exactly the thing that keeps sliding, we’ll run it for you — flat monthly pricing, same date every month. Curious what that costs for your volume? Try the cost estimator for a quick figure, or call (254) 556-5277 for a straight number.

Related: What a bookkeeper actually does · QuickBooks Online for contractors