Event budget: planned, committed, paid

The story is always the same, and it fits in three numbers. A budget shows $180,000 spent out of $240,000 planned. That leaves $60,000: enough to add a stage. So you add it.

Three weeks later the invoices arrive. The real figure was $232,000.

Nobody miscounted. The budget was showing what had been paid, and the decision was about what had been committed. Two different words, two different numbers, and $52,000 between them.

Two columns are not enough

The most common event budget has two columns: planned and actual. The problem is the word actual, which means invoiced. Between the day you sign a quote and the day the invoice lands, four to eight weeks go by. For all that time the budget shows a balance you no longer have.

It is mathematically reassuring and practically dangerous. You make commitments while looking at a balance that ignores the commitments you already made.

Why committed is the number that counts

Once you accept a quote, the money is gone. Not from the bank account — from your room to manoeuvre. Whether the transfer leaves tomorrow or in two months changes your cash position, not your budget. Tracking commitments does two things that tracking payments cannot.

• The overspend shows up while it can still be recovered: at the moment of committing, not four weeks later.
• Trade-offs become possible. « There is $4,200 left on technical » is a sentence you can decide on. « We have paid $11,000 of $30,000 » is not.

It is also what makes an alert useful. An alert on what is paid always arrives too late. An alert on what is committed arrives at the moment of the decision.

The items everyone forgets

It is not the big items that derail a budget. Those are priced, negotiated and watched. It is the lines with no owner.

• Get-in and get-out hours outside the normal slot, at premium rates.
• Overnight security between the build and the doors opening.
• Meals and lodging for technical crews and for speakers.
• Consumables: gaffer, batteries, cups, last-minute printing.
• Bank and platform fees on ticketing.
• Making good afterwards, and the deposit that does not come back in full.
• Specific insurance: cancellation, public liability, equipment.

Open a contingency line of 5 to 10% depending on the format. Treat it as a real item, with an owner. Not as a cushion you discover empty in June.

In whole cents, and tax-inclusive or not — but decide

Two technical details cost more than they look. First, a budget is held in whole cents. Floating-point amounts end up producing totals that do not land, and a budget that is wrong by a few cents is a budget nobody trusts any more.

Second, you have to settle whether the budget is tax-inclusive or tax-exclusive, and write it at the top. In the UK the standard rate of VAT is 20%, so a budget that mixes quotes excluding tax with invoices including it drifts by a fifth without a single line being wrong.

Rough splits by format

These ranges are for spotting an anomaly, not for building a budget. They are orders of magnitude, not a survey. To recalibrate them on your own format, an industry body beats a forum: the Events Industry Forum publishes the guidance the UK sector actually works to.

What makes a budget reusable next year

An event budget has a second life, and that is where it becomes valuable. But only if it keeps three pieces of information that spreadsheets almost always lose.

1. Which supplier sits behind each line. An amount with no name cannot be renegotiated.
2. The gap between the original quote and the final invoice, item by item. That is the real multiplier to apply next year.
3. What was committed and never used — an item that is systematically underspent is a budget to cut, not a pleasant surprise.

That is why a budget is better off living in the same place as the supplier database. The line « technical — $18,400 » says nothing. The line « technical — $18,400 committed with that supplier, invoiced $19,900 last year » says what to do next time.