The Case for the Boring Monthly Close (And Why Most Nonprofits Skip It)

A development director called us about her organization’s books a few years ago. She wasn’t worried about anything specific — she just wanted “a second opinion” before her organization went after a larger grant.

Within an hour of reviewing the books, we found something strange: the cash balance in the financial reports didn’t match the actual bank balance. Off by about $18,000. Not a typo, not a missing transaction — a genuine, sustained gap. We traced it backwards through the data.

The cause: a duplicate revenue entry from eight months earlier. Someone had recorded a donation twice — once when the pledge came in, once when the check cleared — and never caught it because no one had ever actually closed a month. Reconciliations happened, sort of. Reports got pulled when needed. But the books were never closed — meaning no one ever sat down with the full month’s activity, reviewed it, made adjusting entries, and locked the period.

For eight months, every report that organization had produced — including the one they’d shown a major funder six weeks earlier — had been wrong by $18,000.

That’s the cost of skipping the monthly close. And it’s not unusual.

What “closing the books” actually means

A lot of people use the phrase casually. Closing the books actually has a specific meaning, and most nonprofits don’t do it.

A true monthly close includes:

1. All bank, credit card, and payment processor accounts reconciled to the statement balance. Not just “looked at” — reconciled, with documented matches between the books and the statements.
2. All transactions reviewed and categorized. Anything in a holding account or “ask my accountant” account gets resolved before the close.
3. Accrual entries posted for revenue earned but not yet received, expenses incurred but not yet paid, depreciation, prepaid expenses being recognized, and any other timing adjustments.
4. Inter-fund transfers and release-from-restriction entries posted for any restricted funds that became unrestricted during the month.
5. A review of the month’s activity by someone who isn’t the person who recorded most of it — even a quick scan for transactions that look unusual.
6. The period is locked so no one can go back and change last month’s numbers without an explicit reopening.
7. Standard reports are generated and filed — Statement of Activities, Statement of Financial Position, budget vs. actual, fund balance reports — as the official “month-end financials.”

Most nonprofits do steps 1 and 2 and call it a close. The other five are what separate a real close from a glorified bookkeeping check-in.

Why the missing steps matter

Without a true close, three problems compound over time:

The numbers keep shifting

If last month’s books aren’t locked, anyone can go back and change them — usually with good intentions (“I noticed this should have been coded differently”). The result is that a report you generated three weeks ago no longer matches the same report generated today. Your board has been told numbers that are no longer true.

Errors hide for months

A real close is the moment errors get caught. Without it, mistakes drift downstream until something else surfaces them — usually an audit, a grant report that doesn’t tie out, or a moment of “wait, that doesn’t look right” from a board treasurer. By then, the error is months old and harder to fix.

The annual audit becomes a marathon

Auditors expect to see “closed” months. When they find books that have been continuously open all year, every transaction is fair game for review, every balance is provisional, and the audit becomes vastly more time-consuming (and expensive — most audit engagements bill more when books aren’t properly closed).

The three questions worth asking

Pulled from the operations section of the Health Check, these three questions tell you whether your monthly close is real or theoretical.

1. Is every bank, credit card, and payment processor account reconciled by the 15th of the following month?

Late reconciliations are how errors and missing transactions hide. The 15th is generous — many well-run nonprofits hit the 10th. Past 30 days, the catch-up gets exponentially harder because you’re trying to remember context for transactions that are no longer fresh.

2. Are transactions coded consistently to the right account, program, and (where applicable) grant or fund — not just “Office Expense”?

If your books contain a lot of “Miscellaneous Expense,” “General,” or vague accounts where everything difficult-to-classify ends up, that’s a coding rules problem. The fix isn’t more discipline; it’s clearer rules. Every recurring transaction type should have a documented code. New types get added to the rules, not coded to a catchall.

3. Do you complete a true monthly close — review, adjusting entries, lock the period — not just “catch up when we have time”?

Catching up is not closing. If you can’t point to a specific date each month when the prior month gets formally closed and locked, you don’t have a close process — you have a reconciliation habit.

What good looks like in practice

A working monthly close, for most small-to-midsize nonprofits, looks something like this:

• Days 1-5 of the new month: Bank and credit card statements arrive. Reconciliations begin.
• Days 6-10: All transactions are coded, reviewed, and categorized. Accrual entries are posted. Inter-fund transfers happen.
• Days 10-12: Review by a second set of eyes. Adjustments made. Period locked.
• Days 12-15: Standard reports generated, distributed to leadership, and archived.
• By the 15th: Last month is closed. Everyone moves on.

It’s about two weeks of attention, but most of it is short blocks of focused work — not a full-time job. For organizations that don’t have internal capacity, this is one of the most common reasons to bring in outside bookkeeping support: not because the math is hard, but because the process discipline is.

The story’s epilogue

The $18,000 cash discrepancy from the opening of this post got resolved within a few hours of finding it — a single adjusting entry, properly documented, dated correctly. But the bigger fix took longer. The organization implemented a real monthly close: written reconciliation procedures, a documented coding rule book, a calendar with close dates marked, and a review step that the development director and the bookkeeper handled together on the 12th of every month.

The next year’s audit took 40% less time than the prior year’s. Same auditor, same scope, dramatically cleaner books to work with.

What to do this month

If you’re not sure whether your nonprofit has a real monthly close: pick the most recent fully-completed month and ask three questions.

1. What date was last month’s close finalized?
2. Who reviewed the month before it was locked?
3. Can I generate the same Statement of Activities for last month today that I would have generated two weeks ago — and get identical numbers?

If you can’t answer those three with confidence, you don’t have a close process yet. That’s the project worth starting.

Two ways to go deeper:

• Download the Nonprofit Bookkeeping Health Check— fifteen questions across five categories, including the three from this post and twelve more.
• Book a free 30-minute Finance Review— we’ll look at your current month-end process and tell you what’s working, what’s missing, and what one or two changes would get you the biggest improvement.

Next in the series: What your board can’t actually see in your financial reports — and why it’s not their fault.

Previous: Was Your Chart of Accounts Built for a Nonprofit?

*Details have been changed to protect client confidentiality.