Explain a Budget Difference With Evidence

The Practical Check

An expense difference needs an explanation that can be checked. Calculate actual minus budget for the same period, currency and accounting basis, then compare the difference with the amounts supported by your notes. An appealing story cannot replace a missing reason. The calculation and fictional exercise below support a review conversation; they do not decide cost eligibility, materiality or permission to change a budget.

Your Starting Facts

Fictional October 2026 materials line in USD, with budget and actual prepared on the same accrual expense basis: period budget 300.00 and actual 390.00. Approved aggregate note N1 attributes 40.00 of the difference to a documented unit-price increase. Note N2 attributes another 30.00 to additional quantities received in October. The notes do not explain the remaining difference. No review threshold, spending approval or permission to transfer funds has been supplied. These invented amounts are practice inputs, not an organization's financial data.

Worked Example

Actual minus budget is 390.00 minus 300.00 = 90.00 USD above budget. The percentage is 90.00 / 300.00 x 100 = 30.0%. N1 and N2 explain 40.00 + 30.00 = 70.00. The unexplained remainder is 20.00. A defensible draft says which notes support the 70.00, leaves 20.00 unresolved and asks the budget holder for evidence. It does not invent inflation, delay, waste or approval as a cause. No threshold result can be given without the organization's test.

Continue With the Resource

Optional Facilitator Note

Optional group transfer: after explaining the original 90.00 difference and unresolved 20.00, use the separate offsetting-variance and zero-budget cases in the expense-report resource. Ask participants to prepare two independent review notes, not merge the cases into one project or invent approval.

Work Product: Two short notes with checked amounts, the supported reason or missing evidence, a proposed owner and next check: one for a zero net total with unresolved lines, and one for a confirmed zero budget with a nonzero actual. Keep undefined percentages and authority questions visible.

Debrief and Reasons

1. Does the zero net difference mean no action is needed?

   No. Travel +300 and supplies -300 offset, but only 200 of the travel increase is explained, leaving 100 unresolved; the postponed supplies purchase also needs a delivery decision. Show both line reviews rather than hiding them behind the total.

2. How should the zero-budget note state the result?

   The separate translation case is actual 150 minus confirmed budget 0, giving +150. Its percentage is n.a. because the denominator is zero, not 0% or 100%. A missing budget would remain an unresolved input instead of a guessed zero.

3. What remains with the actual owners?

   Finance verifies comparable sources and arithmetic; the budget or program owner checks the unexplained amount or postponed work; the authorized agreement/decision owner checks any proposed change. Neither a balanced total nor an invoice establishes cash availability, allowability, approval or permission to transfer funds.

• Open the Report: When Two Variances Cancel / Review a Zero-Budget Expense

Source and Scope

• NCVO: Management Accounts

  Sections Writing management accounts, Focus on relevant information and Points to check on the management accounts support clear explanations of differences, consistent accounting basis and an explicit decision/action purpose. UK voluntary-sector practice, last reviewed July 19, 2018; accessed October 26, 2026. It sets no universal threshold or award rule. The arithmetic convention, fictional notes and exercise are OpenAid adaptations.