Why “hanging” balances undermine financial statements and audit
Swiss SME ledgers often accumulate amounts on suspense or clearing accounts, or on unreconciled customer and supplier open items. They frequently arise from receipts or payments recorded in advance, unidentified transfers, pending credit notes, or provisional month-end adjustments. While they remain open, they distort liquidity, margins, and receivable or payable positions.
The Swiss Code of Obligations requires proper bookkeeping (Art. 957a CO) and financial reporting that presents the company’s economic situation in a way that allows third parties to form a reliable opinion (Art. 958 CO). At year-end, persistent balances on transit accounts signal incomplete processes: an auditor, tax adviser, or tax authority may request documentary evidence and adjustments. Systematic cleanup before closing the books reduces the risk of adjusting entries, VAT return errors, and delays in approving the annual accounts.
This guide explains how to classify suspense accounts and open items, clear them with a traceable audit trail, and integrate bank reconciliation into the closing cycle — in the typical operating context of businesses using accounting software such as Accountex.
Suspense, open items, and clearing: what sets them apart
Using the same label for different accounts is one of the main causes of “forgotten” open items. The table below summarises the usual roles in a Swiss chart of accounts (GAAP/FER or micro-GAAP/FER):
| Account type | Typical function | Year-end target | Risk if left open |
|---|---|---|---|
| Suspense account (e.g. 1090, 2090) | Holds temporary entries pending allocation (bulk payments, unallocated advances) | Zero balance or justified, documented residual at 31 Dec | Phantom assets/liabilities; profit or loss not corrected |
| Open item (customers/suppliers) | Invoice or credit note posted but unsettled, or payment without matching | Reconciliation with bank statement and commercial document | Uncollectible receivables not written down; liabilities omitted |
| Bank / payment clearing account | Records receipts from terminals, PayPal, Stripe before final bank credit | Alignment with bank credit and fees | Liquidity overstated or understated vs. current account |
| VAT suspense account | Temporary differences between booking and periodic VAT return | Reconciliation with VAT form and ledger balance | Tax adjustments, default interest |
| Payroll / wages suspense account | Salaries posted but unpaid, or payments without linked payslip | Matching to payroll and OASI/occupational pension (AVS/LPP) filings | Incorrect personnel costs; social security non-compliance |
Red flags in the closing month
On the chart of accounts
- Balances on 109x/209x accounts unchanged for several months
- Customer open items with document date over 90 days and no follow-up
- Negative amounts on supplier accounts (duplicate payments not cleared)
- Ledger bank balance that does not match the latest available statement
In internal processes
- “Temporary” postings without reminder or assigned owner
- Missing supporting document uploads in the digital archive
- Cash receipts not deposited or not recorded
- Foreign-currency transactions without documented year-end rate
Pre–year-end cleanup: a five-step operational sequence
A repeatable approach avoids leaving exceptions to the last day. We recommend starting clearance at least four weeks before the balance sheet date:
- Extract open items. Reports by suspense account, customer/supplier ageing, unallocated bank items. Export the list with amount, date, document number, and posting author.
- Classification and priority. Separate items with missing documents, items to reverse, items to allocate across multiple expense or revenue accounts. Assign an owner and internal deadline for each line above a threshold (e.g. CHF 500).
- Accounting clearance. Perform reversals, matching adjustments, or reclassifications to final accounts. Each entry must reference the source document and, where applicable, the entry being corrected (cross-reference in the software).
- Cross-validation. Compare bank, VAT, and payroll balances after clearance. Confirm that suspense accounts material to the financial statements are at zero or accompanied by an explanatory note for the auditor.
- Lock-down and review. After books are closed, limit retroactive adjustments; any subsequent corrections must follow a formal protocol (see audit trail).
Audit trail: what must remain demonstrable
The audit trail is not a technical optional extra: it is the chain linking every balance sheet amount to an economic event, a document, and a responsible person. In Switzerland, ordinary or limited audit, tax advisory work, and disputes with the Federal Tax Administration (FTA/AFC) rely on this traceability.
For each adjustment on suspense accounts or open items, you should archive at least: bank or card statement, invoice or contract, email or order explaining the transaction, accounting entry number, date, and user who approved the adjustment. In cloud ERP software, use change logs, PDF attachments, and structured note fields rather than free-text comments that cannot be searched.
| Element | Purpose | SME good practice |
|---|---|---|
| Document numbering | Unique link between business and accounting | Same key on invoice, payment, and entry (e.g. QR reference or invoice number) |
| User log and timestamp | Show who changed what and when | Disable password sharing; use roles (bookkeeper vs approver) |
| Digital attachments | Evidence of economic content | Statutory retention (10 years for books and accounting records, Art. 958f CO) |
| Internal closing note | Explain remaining exceptions | Brief memo for items > materiality threshold accepted by the auditor |
Compliant bank reconciliation
Bank reconciliation is the link between account 102x and real cash movements. A clean close requires the ledger balance at 31 Dec to match the bank statement, plus/minus known, documented accrual items.
Step 1 — Statement balance. Download the statement for the last business day of the fiscal year (or 31 Dec if the bank provides value-date view). For multi-currency accounts, use the FTA or bank year-end rate consistent with accounting policy.
Step 2 — Items in transit. List cheques issued but not cleared, outbound transfers posted but not debited, receipts recorded in the books but credited after year-end. These items explain legitimate differences; they must not be “hidden” on generic suspense accounts.
Step 3 — Unidentified transfers. Incoming amounts without a QR reference may sit temporarily on a suspense account only if you start investigation within a few days (customer, mandate, proforma invoice). Before closing, every line must be allocated or returned.
Step 4 — Proof of reconciliation. Archive the reconciliation worksheet or report digitally signed by the finance owner, with book balance, bank balance, list of reconciling items, and reconciled balance with zero unexplained difference.
Illustrative example (fictitious amounts)
Ledger bank balance at 31 Dec: CHF 48'320. Bank statement balance: CHF 47'895. Items in transit: supplier transfer posted CHF 1'200 (not yet debited); December bank fees CHF 25 recorded in January (CHF 0 on the 31 Dec statement). Unexplained difference: CHF 0 after adjustment. An amount of CHF 890 left on suspense account 1090 is matched to a customer advance identified by email — entry: debit 1020 Bank, credit 1090 Suspense, with statement and CRM screenshot attached.
This approach avoids leaving CHF 890 on the balance sheet as an undefined asset and documents the correction for audit.
Alignment with VAT and payroll
VAT
Open items on invoices issued but not collected affect the agreed consideration method vs. the consideration received method under the Swiss VAT Act (LIVA), where applicable. Before closing, verify that each open invoice has a consistent VAT code and that advances have not created duplicate recoverable tax from earlier periods. A suspense balance on the VAT account must reconcile with the latest periodic return and known adjustments.
Salaries and contributions
Payments posted to a “payroll” suspense account often hide thirteenth salary, bonuses, or undocumented expense reimbursements. Match every bank outflow to the payroll run, OASI (AVS) filings, and occupational pension (LPP). Open items after 31 Dec on employee liabilities must reflect real obligations, not matching errors.
Materiality, auditor, and tax returns
Not every cent requires immediate clearance, but the materiality threshold should be agreed with the auditor or set internally in a consistent way. In practice, many SMEs set a threshold between CHF 100 and CHF 1'000 for residual suspense items, always with an explanatory note if they affect liquidity ratios or bank covenants.
For corporate income tax and filed financial statements, incorrect suspense balances can inflate assets or hide liabilities: this distorts the tax base and the presentation of economic situation under Art. 958 CO. Clearing before general meeting approval avoids costly post-approval restatements.
Under a limited audit, the auditor checks plausibility and traceability; unexplained suspense accounts are among the first areas of focus. An orderly audit trail reduces questions, management letters, and delays in issuing the audit report.
Quick checklist before closing the books
| Check | Completion criterion |
|---|---|
| Balance sheet suspense accounts | Zero balance or auditor memo for every line above threshold |
| Customer ageing | Items > 360 days written down or explained; no unexplained negative balance |
| Supplier ageing | Matched to received invoices; instalments and credit notes posted |
| Bank reconciliation | Signed report; unexplained difference = 0 |
| Electronic payment clearing | Fees and credit timing aligned with statement |
| Documentation | Attachments and change logs for every material adjustment |
Automation and control with Accountex
Accounting software built for Swiss SMEs centralises bank, invoicing, and the general journal: camt.054/MT940 import, semi-automatic QR payment matching, and account reports speed up suspense clearance. Set rules that block monthly close when certain transit accounts exceed a threshold, and use filters for “items without document” before 31 December.
Cleaning suspense accounts and open items is not a mere technical exercise: it is internal control, the basis for defensible financial statements, and a prerequisite for bank reconciliation that stands up to auditor review and federal and cantonal tax requirements. Starting the routine described in this guide a few weeks early turns year-end from a race against the clock into a manageable, repeatable process every fiscal year.