How should I compare this month's results when last month included a once-off sale?

An unusual sale can distort the headline comparison

A lower sales figure this month may look like deterioration when the prior month included an exceptional order. Equally, the large order may reveal a profitable service the business can develop. The useful comparison asks what happened and what it tells the owner, rather than automatically removing the transaction because it is inconvenient.

Start by checking the facts: the customer, work delivered, period recognised, value and related costs. Confirm that the prior month’s sale was recorded correctly. A genuine unusual transaction is different from an error that needs correction.

The owner should see both the actual result and the explanation of the unusual item. A management adjustment is an analytical view, not permission to rewrite the accounting record or alter a submitted return without the appropriate basis.

Define what you mean by once-off

Explain why the sale is being treated as unusual. It may be a disposal of equipment, a large project outside the normal pattern or a customer order unlikely to repeat. Those are different circumstances, and the description should make the distinction clear.

Do not label every large or volatile transaction “once-off” merely to produce a smooth trend. A business that regularly wins occasional projects may have a naturally uneven revenue pattern. Removing those projects from every comparison could hide the real economics of the business.

Record the reason and review it over time. If similar transactions become common, change the analysis openly rather than continuing to describe recurring activity as exceptional. Consistent definitions help the owner understand whether the business itself is changing.

Keep the actual and adjusted views side by side

Present the reported monthly result first, then show any analytical adjustment and the resulting comparison. Use clear labels such as “actual result” and “management comparison excluding the identified sale”. Avoid a title that implies the adjusted view is the only true result.

The reconciliation should show exactly what was removed or reclassified for the analysis and why. Include related costs where appropriate instead of removing revenue while leaving all its delivery costs in the comparison. Ask the accountant to review the treatment if the relationship is not straightforward.

Do not overwrite the original report. Keep the underlying figures and the analytical working paper so another person can reproduce the comparison. A transparent bridge is more useful than a polished chart whose totals cannot be traced.

A fictional comparison with matched costs

The current month is below the prior month’s actual sales and gross profit, but above the simplified comparison excluding the identified project. Neither statement should be hidden. The figures are fictional and do not establish the correct treatment for a real business; the actual classification and cost allocation need evidence.

Check whether the periods are genuinely comparable

Compare periods of the same length and consider changes in trading days, service capacity and business activities. A short operating month and a full month may differ for reasons unrelated to customer demand. Describe those differences instead of attributing the whole movement to the unusual sale.

Check that the reports use consistent categories and recognition practices. If one month includes a cost that belongs to another period, the apparent trend may reflect a record issue rather than business performance. Resolve material errors through the proper accounting process before relying on the comparison.

Where the business is seasonal, compare with an appropriate earlier period as well as the immediately preceding month. The choice should answer the owner’s question and be explained, not selected solely because it produces the most favourable trend.

Look at margin and delivery demands, not just revenue

A large sale can carry additional direct costs, subcontracting, overtime or discounts. Review its contribution and the resources it used. High revenue does not automatically mean the order improved the business to the same extent.

Some costs may have mixed purposes or remain after the project ends. Do not assume every expense incurred in the same month is removable from the adjusted view. Explain the allocation and distinguish directly attributable costs from the business’s continuing overheads.

A fictional agency may bring in a specialist contractor for an unusual assignment while its permanent team continues normal work. Removing the project revenue and the clearly related contractor cost may help analyse ordinary activity, but removing the entire payroll would tell a different and potentially misleading story.

Separate the profit comparison from the cash effect

The sale may be recorded before the customer pays, or the customer may pay a deposit before the work is recognised. Its cash timing therefore needs separate analysis. A month with less revenue can still have stronger receipts if customers settle earlier invoices.

The IFRS Foundation’s cash-flow overview explains why reported performance and cash movement differ. For the owner, show when the unusual project required spending and when it actually generated receipts.

Do not remove the sale from a management comparison and then forget the outstanding customer balance in the cash forecast. The transaction remains real. Its collection, warranty, delivery or other commitments still need management even if a separate analytical view excludes it.

Use the result to ask better operating questions

Once the comparison is clear, ask why the unusual order occurred. Did an existing customer expand its needs, did a referral introduce a new market or did the business accept work outside its normal offer? The answer may inform the sales strategy without implying that the transaction will recur automatically.

Review whether the business could repeat the work with the same resources and margin. If the project depended on a special arrangement or unusually favourable input cost, record that limitation before using it as a forecast assumption.

Also examine ordinary activity. The adjusted view may show that recurring sales improved, remained flat or declined. Turn that finding into specific questions about customer retention, pricing, capacity and service demand rather than treating the adjusted number as a conclusion in itself.

Keep adjustments consistent when reporting to others

A lender or investor may receive both the formal statements and a management analysis. Identify the status and purpose of each. Explain the adjustment method and provide the reconciliation so the recipient can see how the analytical figure relates to the underlying accounts.

Avoid changing definitions between months without disclosure. If one period excludes unusual revenue but another retains unusual costs that flatter the comparison, the reader cannot assess the trend fairly. Use a documented approach and explain necessary changes.

The government’s business planning guidance emphasises testing the business idea and its financial plan. Use the unusual sale as evidence to investigate assumptions, not as an unsupported claim of permanent growth.

Do not treat a genuine transaction as an accounting error

If the sale occurred and was correctly recognised, it belongs in the records. The fact that management wants a comparison without it is not a reason to reverse the entry. Keep analysis separate from changes that correct an actual accounting mistake.

When an error is found, document its nature, the supporting evidence and the appropriate correction. Ask whether other reports or returns are affected. Do not use a management adjustment to conceal a correction that should be made properly in the underlying records.

This distinction also protects the monthly process. A recurring list of unexplained “once-off adjustments” can become a place where unresolved errors are hidden. Review the list and require a reason for each item before using the comparison for decisions.

Ask for a report that preserves both the facts and the explanation

Use Vatco’s management accounts service when the owner needs a consistent monthly comparison and commentary. Provide the unusual transaction’s evidence, related costs and the decision the report must support.

If the sale changes future expectations, discuss budgeting and forecasting and make the recurrence assumption explicit. If the issue is customer payment timing, use cash flow management for that separate view.

A useful comparison keeps the actual result intact, explains the unusual event and shows the owner what remains uncertain. That is a stronger basis for action than either ignoring the large sale or allowing it to distort every later month.