What it means
A cash budget forecasts money in and money out, week by week or month by month. Once the period closes, the actual bank movements are lined up against that forecast and the differences are calculated, which is where the variance comes from.
Convention labels a variance favourable when it helps the cash position and unfavourable when it hurts. Collecting more than planned is favourable, spending more than planned is unfavourable, and it is worth stating the direction explicitly because a bare minus sign means different things on the receipts line and the payments line.
The reason this matters more than a profit variance is that cash shortfalls have immediate consequences. A business can absorb a disappointing profit month, but missing a payroll or breaching an overdraft limit creates problems that cannot be deferred to the next reporting cycle.
Most cash budget variances trace back to timing rather than to anything fundamental. A customer paying in the first week of the new month instead of the last week of the old one produces a large unfavourable variance that reverses immediately, so the useful question is always whether a difference is a genuine loss or just a shift.
Good practice is to break the variance down into a handful of drivers before presenting it: collections, sales volume, supplier payment runs, capital spending and tax. A single net number invites speculation, while four or five component numbers usually point straight at the cause.
In practice
Real-world examples.
Example
A recruitment agency reports a $95,000 unfavourable cash variance for the month and the board assumes a sales problem. The breakdown shows billings were on plan and the entire gap came from two clients moving to 60 day terms, which turns the discussion into a credit control one.
Example
A bakery chain sees a favourable payments variance of $30,000 in March. It is not a saving at all: an equipment invoice slipped into April, and the finance manager flags it so nobody counts the money twice.
Example
A charity running a grant funded project tracks cash budget variances weekly because its funder releases money in tranches. A persistent unfavourable variance on staff costs prompts an early conversation with the funder rather than a scramble at quarter end.
Think of it
“Cash budget variance shows where actual cash results differed from plan-over or under budget.
Formula
Calculation
Cash budget variance = actual cash flow - budgeted cash flow, described as favourable or unfavourable according to its effect on the cash position
A wholesale distributor budgeted receipts of $1,000,000 and payments of $750,000 for June, giving a planned net inflow of $1,000,000 - $750,000 = $250,000. Actual receipts came in at $960,000 and actual payments at $770,000, so the actual net inflow was $960,000 - $770,000 = $190,000.
The receipts variance is $960,000 - $1,000,000 = -$40,000, which is unfavourable. The payments variance is $770,000 - $750,000 = $20,000 of extra spending, also unfavourable.
Net cash variance = $190,000 - $250,000 = -$60,000, which is the -$40,000 shortfall in collections plus the $20,000 overspend. Expressed against plan, the business landed 24% below its budgeted net inflow, since $60,000 / $250,000 = 24%.Case study
Seen in the real world.
The following is an illustrative example using a fictional company. Ravenscroft Fabrications, an invented metalwork business, produced a monthly cash budget that nobody compared with the outturn. The finance team prepared it, filed it, and started the next one.
After a near miss on payroll, the managing director asked for a one page variance report each month showing receipts, supplier payments, wages, tax and capital spending against plan. The first three reports revealed the same pattern: collections ran roughly $70,000 behind budget every month because the forecast assumed 45 day payment while the average customer took 62 days.
The fictional firm changed the assumption in the model, and the unexplained variance largely disappeared. More usefully, the sales team was given a collections target alongside its order target, and average days to pay fell to 51 over the following six months.
Watch out
Common mistakes.
- Reporting only the net variance, which hides an unfavourable collections gap sitting behind a favourable underspend.
- Treating every unfavourable variance as a performance failure when many are pure timing differences that reverse within days.
- Leaving the original budget unrevised all year, so by month nine the variances measure the age of the assumptions rather than current performance.
Questions
People also ask.
How often should cash variances be reviewed?
Weekly for a business with tight liquidity, monthly for one with comfortable headroom, and always soon enough to act before the next payment run.
Is a favourable cash variance always good news?
Not necessarily, because it can come from delaying supplier payments or postponing needed investment, neither of which is a real gain.
Should the cash budget be rewritten when large variances appear?
Reforecast rather than rewrite, keeping the original budget visible so the size and direction of the drift stay on the record.
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