Bank Statement Entries

By Nupur Mittal

Co-founder at OCTA — works with accounting firms on month-end close and reconciliation automation.

Bank statement entries is the process of mapping every transaction on a bank statement to the correct general ledger account and drafting the journal entry that records the period's cash activity. It turns a raw list of debits and credits into coded, GL-ready entries — payroll to wages, a wire to the right vendor account, a bank fee to bank charges — with anything ambiguous flagged for a person to confirm. This page walks through the process, the format, the controls a careful preparer applies, and how OCTA Flow automates the coding while a human signs off on every entry before it's posted.

Why bank statement entries matter, and where it goes wrong

Every bank account generates a stream of transactions that have to land somewhere in the general ledger, and getting that mapping right — every period, for every account — is the foundation the rest of the books sit on. Miscode a wire transfer as an expense instead of an intercompany transfer, and you've overstated costs. Miss that "IRS" on the statement is a tax payment and not a random debit, and the liability account never clears. The work itself is simple to describe and tedious to execute: hundreds of lines, most of them repeats of last month's vendors and payees, a handful that don't match anything on file.

The risk isn't in the easy 90% that matches cleanly against last period's rules — it's in the transactions that don't. A large round-dollar debit with no useful description. Two payments to the same payee for the same amount three days apart. A personal-looking charge on a business card. A returned check that needs to reverse a deposit rather than book as a new expense. None of these are hard to catch individually, but catching all of them, consistently, on every account, every period, is what separates a bookkeeper who is genuinely reviewing the statement from one who is just clearing the queue. The goal is a fully coded set of transactions, a journal entry that ties to the bank's own ending balance, and a short, honest list of anything that still needs a human decision — not a spreadsheet where everything got a plausible-looking account number and nobody checked.

The bank statement entries process, step by step

The steps below are the full procedure OCTA Flow executes to code a period's bank activity; they also stand alone as a best-practice process any preparer can follow by hand.

1. Load the chart of accounts. Start with the client's chart of accounts and understand its structure — which accounts exist for payroll, rent, utilities, bank charges, sales receipts, loan payments, and tax liabilities. Every transaction has to land in one of these buckets; know the buckets before you start coding.

2. Load prior-period categorization rules. If the client has a history, pull forward the vendor-to-account mapping from the prior period — which payee maps to which GL account — and any default categories on file for known vendors. This is what makes coding fast: most of a period's activity is a repeat of last period's activity.

3. Process each transaction. Work through every line on the statement:

• Identify the direction — debit (cash out) or credit (cash in).
• Match the payee or description against the vendor list and the prior-period rules.
• Assign the GL account the match points to.
• For anything unmatched, apply plain-language heuristics — "PAYROLL" points to wages expense, "LEASE" points to rent expense, "IRS" points to a tax liability account — as a starting suggestion, not a final answer.
• Flag anything that can't be coded with real confidence for manual review rather than guessing.

4. Validate against the opening balance. Where an opening balance is available, check the arithmetic that has to hold for any period: opening balance + credits − debits = ending balance per the statement. Flag any discrepancy before going further — a mismatch here usually means a transaction was missed or double-counted.

5. Summarize by GL account. Group the coded transactions by account and total the debits and credits each account picked up for the period. This summary is what a reviewer scans first — it should read like a plausible month, not raise questions before the detail is even opened.

6. Draft the journal entry. Produce a single compound journal entry that records the period's bank activity in one posting: cash is debited for every inflow and credited for every outflow, with the offsetting side split across whichever GL accounts the transactions were coded to.

7. List the items that still need a decision. Separately list every transaction that couldn't be coded with confidence, with a suggested account and the reason it was flagged, so the client or reviewer can confirm or correct it rather than it getting buried inside an entry nobody double-checked.

Coding transactions and drafting the journal entry (worked example)

Here's a short worked example for a dental practice's operating account, February month-end. Opening balance per the bank statement: $18,240.50.

Step 1 — code each transaction to a GL account:

Two of these are the kind of item a rigorous coder catches and a fast one doesn't: the transfer to savings is a balance-sheet movement between the client's own accounts, not an expense, and the NSF item reverses a prior deposit back into receivables rather than booking as a new cost.

Step 2 — draft the compound journal entry:

Step 3 — verify the balance:

The computed balance ties to the statement exactly, so the period's coding is complete and the entry is ready for review.

Key controls and red flags

Coding a transaction to some account is easy. Coding it correctly, and catching the handful of lines that need a second look, is what makes the entry trustworthy. A careful reviewer flags:

• Transactions with no match in the vendor list or prior-period rules — these get a suggested account, never a silent guess
• Large round-dollar transactions with no clear description — a $5,000.00 wire with nothing to explain it deserves a question before it gets coded and closed out
• Multiple payments to the same payee, same amount, close together — a common signature of a duplicate payment; the standard check is two outflows of the same amount within about five days of each other, above a small materiality floor so genuine small charge/refund pairs aren't buried. An identical amount recurring more than twice to the same payee is usually a standing instruction (rent, a subscription), not a duplicate — treat it accordingly
• Transfers between the client's own bank accounts — these are balance-sheet movements and should never be coded as an expense
• NSF or returned items — a bounced customer payment needs to reverse the original deposit, not book as a new charge
• Personal-looking expenses — restaurants, entertainment, and similar charges on a business account may need owner sign-off before they're coded as a business expense
• Tax payments — confirm the correct liability account is credited so the balance actually clears rather than sitting stale on the books

Catching these consistently — not just the transactions that happen to look obviously wrong — is what separates a coded transaction list from a workpaper a reviewer can actually rely on.

What a completed bank statement entries workpaper produces

A finished bank statement entries workpaper isn't just a coded list — it's a package a reviewer can sign off on and trace back to the source document line by line. A complete package includes:

How OCTA Flow automates bank statement entries

OCTA Flow does the mechanical coding for you and leaves the judgment calls — and the sign-off — with your team. The workflow mirrors the process above:

1. Pick the Bank Statement Entries Skill. Flow already knows the procedure: load the chart of accounts, apply prior-period rules, code every transaction, validate against the opening balance, and draft the journal entry.
2. Connect your data. Point Flow at the accounting system and bank feed, or upload the period's files — the bank statement, the chart of accounts, and, if available, last period's categorization rules and the vendor list.
3. Run. Flow codes every transaction it can match with confidence, applies keyword logic to the rest, checks the statement's own balance arithmetic, and drafts the compound journal entry.
4. Review findings by severity. Instead of scrolling a full transaction list, Flow surfaces the lines that actually need a decision — ranked by severity, each with a plain-English explanation and a recommended action: post the entry, ask for an explanation, escalate a likely duplicate, or accept as-is with a documented reason. Your team works the exceptions, not every line.
5. Sign off. Once every flagged item is resolved and the entry is approved, Flow assembles the workpaper with the full audit trail intact.

The result: the repetitive coding is done in a fraction of the time, and your people spend their hours on the handful of transactions that actually need a judgment call.

Control and trust: Flow proposes, you approve

This is what matters most to a firm putting its name on the numbers: OCTA Flow never writes to your books on its own. Every coded transaction and every line of the draft journal entry is a proposal that a person reviews and confirms before anything is posted. Flow does the coding and shows its reasoning; a person makes the call.

That control model runs through the whole process:

• Findings, not silent changes. Flow raises what it found and what it recommends — you decide whether to post it, ask for an explanation, or escalate it.
• Severity and escalation built in. A likely duplicate payment or an unexplained balance difference is flagged and can be escalated to a manager rather than quietly coded and forgotten.
• A complete audit trail. Every match, every proposed entry, every approval and override is logged, so the coding is fully traceable back to the source document.

You get the speed of automation with the accountability of human sign-off — exactly what recording cash activity in the general ledger requires.

What bank statement entries draws on

To code a period's bank activity, Flow uses the same sources a preparer already works from:

• Bank statement data — the period's bank transactions (required)
• Chart of accounts — the client's GL account structure, so every transaction lands in a real account (required)
• Prior-period categorization rules — the vendor-to-account mapping carried forward from the last period Flow ran (optional)
• Vendor master list — a list of vendors with their default GL categories, where the client maintains one (optional)
• Opening balance — the period's opening cash balance, used to validate the statement's own arithmetic (optional)

Flow works from whatever the client has connected — it matches each input by its purpose, so it doesn't matter what the files are named or which bank or accounting system they came from.

Related skills and terms

Frequently Asked Questions

What does "coding" a bank transaction mean? Coding means assigning a bank statement line to the correct general ledger account — a payroll debit to wages expense, a deposit to revenue, a wire to the vendor account it belongs to — so the transaction is recorded correctly rather than sitting unclassified.

How do you categorize bank transactions to GL accounts? Start from the chart of accounts and any prior-period vendor-to-account rules. Match each transaction's payee or description against those rules; for anything unmatched, apply keyword logic (a description containing "payroll" points to wages expense, for example) as a starting suggestion, and flag anything you're not confident about for manual review rather than guessing.

What is a bank statement journal entry? It's the compound entry that records a period's bank activity in one posting — cash is debited for inflows and credited for outflows, with the offsetting amounts split across whichever GL accounts each transaction was coded to. It's what turns a coded transaction list into an actual entry in the books.

How do you catch duplicate bank transactions? Look for two outflows of the same amount to the same payee within a few days of each other — a common rule of thumb is a five-day window. An amount that recurs more than twice for the same payee is usually a standing instruction like rent or a subscription, not a duplicate, so it shouldn't be flagged the same way.

How should a transfer between two of a client's own bank accounts be coded? As a balance-sheet movement, not an expense. It should hit the receiving account (or a due-to/due-from account) on one side and cash on the other — coding it as an expense overstates costs for the period.

Can bank transaction coding be automated? The matching, categorization, and balance validation can be automated and then reviewed — the judgment calls, like whether a flagged charge is legitimate or whether two payments are really a duplicate, stay with your team. That's the model OCTA Flow uses.

Does OCTA Flow post the journal entry directly to my accounting system? No. Flow proposes the coded transactions and the draft journal entry; a person on your team reviews and approves before anything is posted to the books. Nothing is written automatically.

See how firms code a period's bank activity in a fraction of the time, with full human sign-off → start a 30-day OCTA Flow trial.