Guide
Variance commentary examples: how to explain budget vs actual in one sentence
To explain a budget vs actual variance in one sentence, give five things in order: the line, the amount it moved against budget, the cause named by the account behind it, whether it is timing, one-off or permanent, and what happens next. For example: “Software was over budget because the annual design-tool licence was paid in one month but budgeted across twelve; timing, so the coming months come in under budget.”
Updated
What should a one-sentence variance explanation include?
Five parts, in this order: the line and the amount it moved against budget; the direction, over or under; the cause, named by the account behind it; the kind of variance, timing, one-off or permanent; and what happens next, such as when it reverses or how the forecast changes. Leave out anything a reader cannot act on.
Variance commentary template plain text
ONE-SENTENCE VARIANCE COMMENTARY - [Company] - [Month] [Line] was [$ amount] ([%] of budget) [over / under] budget because [cause, named by the account behind it, with its amount]; [timing / one-off / permanent], so [what happens next]. What happens next, by kind: Timing reverses in [month]; the full-year budget is unchanged. One-off will not repeat; no forecast change. Permanent the forecast moves by [$ amount] a month from [month]; [action, owner, date].
Name the account, not the department: “legal fees” tells a reader what to ask about, “admin costs” does not. The variance itself is actual minus budget, calculated line by line as the variance analysis guide shows.
What are good variance commentary examples?
Ten one-sentence explanations for the lines that move most often. Each follows the template above and is marked timing, one-off or permanent; swap in your own accounts and amounts.
Examples · illustrative figures, not a real company
- Revenue timing
“Revenue was $18,000 (7.5%) under budget because one annual renewal planned for this month was signed in the first week of next month; timing, so next month's forecast rises by $18,000 and the full year is unchanged.” - Revenue permanent
“Subscription revenue was $4,500 (3%) under budget because two customers moved to the smaller plan this month; permanent, so the forecast falls by $4,500 a month for the rest of the year.” - Cost of goods sold permanent
“Cost of goods sold was $7,200 (4%) over budget because our main supplier's 4% price rise took effect this month; permanent, so the forecast rises by $7,200 a month and the head of sales is reviewing our own prices this quarter.” - Cost of goods sold one-off
“Cost of goods sold was $3,100 over budget because a damaged shipment was written off; one-off, so there is no forecast change, and a claim against the carrier has been filed.” - Payroll timing
“Payroll was $9,400 (8%) under budget because the two engineers budgeted from the 1st started on the 15th; timing, so payroll returns to budget next month and the saving does not repeat.” - Marketing timing
“Marketing was $12,000 over budget because the conference sponsorship budgeted for next month was invoiced and paid this month; timing, so next month's marketing comes in $12,000 under and the full-year budget is unchanged.” - Rent permanent
“Rent was $2,500 (10%) over budget because the renewed lease raised rent from $25,000 to $27,500 a month; permanent, so the forecast rises by $2,500 a month from now on.” - Software timing
“Software was $3,300 over budget because the $3,600 annual design-tool licence was expensed when paid, while the budget spreads it at $300 a month; timing, so each of the next eleven months comes in $300 under.” - Travel one-off
“Travel was $5,800 over budget because of the unbudgeted team offsite, flights and hotel; one-off, so there is no forecast change.” - Cash timing
“Cash ended the month $42,000 below forecast because $42,000 of invoices due this month from two customers arrived in the first week of next month; timing, so next month's cash forecast rises by $42,000 and both customers are within terms again.”
Timing, one-off and permanent mean different things for next month: timing reverses, a one-off does not repeat, and a permanent change moves the forecast. The variance analysis guide explains each kind in more detail.
Worked example: from the variance table to the commentary
One month of a small company's budget vs actual comparison, then the paragraph that explains it. Variance is actual minus budget; the tag says whether it helped or hurt profit.
Example · illustrative figures, not a real company
| Line | Budget | Actual | Variance |
|---|---|---|---|
| Revenue | $240,000 | $222,000 | −$18,000 unfavourable |
| Cost of goods sold | $96,000 | $88,800 | −$7,200 favourable |
| Operating expenses | $110,000 | $116,800 | +$6,800 unfavourable |
| Operating profit | $34,000 | $16,400 | −$17,600 unfavourable |
The commentary
“Operating profit was $17,600 under budget, and most of it is timing. Revenue was $18,000 under because one annual renewal was signed in the first week of next month; cost of goods sold was $7,200 under with it, at the budgeted 40% of revenue, so next month's forecast gains $10,800 of gross profit. Operating expenses were $6,800 over: the unbudgeted team offsite cost $5,800 (one-off), and the other $1,000 is spread across lines below our threshold.”
Three sentences cover the whole month: the result first, then each line above the threshold with its kind, and the effect on the forecast. The small lines stay in the table.
What makes variance commentary bad, and how do you fix it?
Bad commentary restates the table, blames a vague cause, or stops before the consequence. Fix it by naming the account and amount behind the movement, saying whether it is timing, one-off or permanent, and ending with what changes next: the forecast, an action with an owner, or nothing. Each sentence should answer the reader's next question.
Bad vs good · illustrative figures, not a real company
| Bad | Good | What changed |
|---|---|---|
| “Revenue was down.” | “Revenue was $18,000 under budget because one annual renewal slipped into next month; timing, so next month's forecast rises by $18,000.” | The amount, the cause, the kind and the consequence |
| “Payroll variance due to timing.” | “Payroll was $9,400 under budget because two engineers started on the 15th, not the 1st; timing, so payroll returns to budget next month.” | Says what the timing is |
| “Marketing over budget, see detail.” | “Marketing was $12,000 over budget because the conference sponsorship was paid a month early; timing, so next month comes in $12,000 under.” | Explains instead of pointing elsewhere |
| “COGS up due to various factors.” | “Cost of goods sold was $7,200 over budget because the main supplier raised prices 4%; permanent, so the forecast rises by $7,200 a month.” | One named cause instead of “various factors” |
| “Rent higher than planned.” | “Rent was $2,500 over budget because the renewed lease costs $27,500 a month, not $25,000; permanent, so the forecast rises by $2,500 a month.” | Says it will recur and moves the forecast |
| “Travel overspend; we will monitor.” | “Travel was $5,800 over budget because of the unbudgeted team offsite; one-off, so there is no forecast change.” | Says it will not repeat, instead of a vague promise |
How long should variance commentary be?
One sentence for each line above your materiality threshold, plus a short opening on the overall result. Lead with the two or three variances that explain most of the gap and leave the rest in the table. If a line needs a full paragraph every month, it is probably permanent: update the forecast instead of explaining it again.
- Open with the result. One sentence on profit against budget and the drivers behind most of the gap, largest first.
- Then one sentence per line. Keep the profit and loss order, so each reader finds their line where they expect it.
- Use the same three words every month. Timing, one-off, permanent: readers learn what each one means for the forecast.
- Set the threshold before you look. A percentage of budget and an amount, both crossed; the variance analysis guide shows how to choose them.
Where the commentary goes
The figures come from your budget report: Budget Variance in Xero, or Budget vs. Actuals in QuickBooks Online. The commentary then sits beside the numbers it explains in the monthly management report; a sample monthly management report shows it in place, built from a sample company's books. When a permanent variance moves a margin, the small-company benchmarks show how small public companies compare, and a board-level summary of the quarter goes into the board pack.
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Questions
What is variance commentary?
The written explanation beside a budget vs actual report: for each line that moved more than your threshold, what moved, by how much, why, and what it means for the forecast. It turns a table of differences into something a reader can act on.
Should variance commentary explain favourable variances too?
Yes. A cost under budget is often a delay rather than a saving, such as a hire who has not started yet, and revenue above budget may be timing. Explain every line above your threshold, whichever way it moved.
How many variances should the commentary cover?
Only those above a materiality threshold set in advance, usually a percentage of budget and an amount that must both be crossed. In the opening summary, name only the two or three that explain most of the difference in the result.
What is the difference between a timing and a permanent variance?
A timing variance reverses: the money moved in a different month than the budget expected, so a later month shows the opposite variance. A permanent variance does not reverse, so the forecast for the months ahead should change.
Can I reuse the same commentary every month?
Reuse the structure, not the words. If one line needs the same explanation month after month, the variance is probably permanent: update the forecast or the budget instead of explaining it again.