More common than anyone admits
Businesses fall behind on their books constantly. A bookkeeper leaves, a busy season swallows a quarter, a system migration goes badly, and suddenly it is March and the last clean month was last June. It is recoverable, and it is worth stating plainly that being behind says nothing about whether the business is sound.
What does matter is the approach, because the instinctive one is the slowest.
Work backwards, not forwards
The instinct is to start at the first unreconciled month and work forward chronologically. Starting with the most recent complete month and working backwards is usually better, for three reasons.
You get a usable current picture in days rather than months, which matters if you are making decisions now. Recent transactions are the ones people still remember, and memory fades fast. And if the project stalls partway, you have accurate recent books rather than accurate ancient ones.
Sequence that works
One: establish the starting point
Find the last date the books were genuinely reconciled, not just the last date entries exist. Confirm bank and credit card balances tie to statements on that date. If they do not, your cleanup starts earlier than you thought.
Two: gather everything before entering anything
All bank and card statements, loan statements, payroll reports, merchant processor summaries, and whatever receipts exist, for the whole period. Stopping mid-cleanup to hunt for a document is where these projects lose momentum.
Three: reconcile accounts month by month
Bank and credit card accounts first. Do not move to the next month until the current one ties exactly. A reconciliation that is off by a small amount will be off by the same amount in every subsequent month, and it compounds.
Four: fix categorisation in bulk
Most miscategorised transactions fall into a few patterns, and rules applied across a whole period handle them far faster than transaction-by-transaction review. Pay particular attention to owner draws versus business expenses, loan payments split between principal and interest, and personal expenses that need removing.
Five: balance sheet accounts
This is the step most catch-up work skips, and it is where errors hide. Loans should tie to lender statements, payroll liabilities to filings, fixed assets to a depreciation schedule, and credit cards to statements. A profit and loss built on an unreconciled balance sheet can still be wrong.
Expect to find things
Catch-up work routinely surfaces subscriptions nobody cancelled, duplicate payments, customers who were never invoiced, missed sales tax filings, and personal spending on business cards. Most businesses recover a meaningful amount in cancelled services and recovered billings. It is worth keeping a list as you go.
Then do not fall behind again
The conditions that caused the gap will recur unless something changes. The realistic fixes are weekly rather than monthly reconciliation, bank feeds and receipt capture to reduce manual entry, a written close checklist, and a specific person responsible with a specific deadline. Catching up twice costs more than maintaining it once.
TallyWise provides this as part of our bookkeeping services. Book a call to talk through your situation.