Close the gap between the wedding estimate and the actual cost

A budget is most useful when it explains what changed. Preserve the original estimate, the accepted commitment and the amount paid so that a higher balance does not appear without context.

A practical sequence

1. Record written quotes and their scope assumptions.
2. Update commitments when changes are approved.
3. Link payments to the correct supplier and milestone.
4. Review remaining obligations before describing money as available.

Work through an example

The original catering estimate used one hundred guests. The final accepted count is one hundred and twelve with additional staff meals. Keeping both versions explains the increase and makes it possible to check the final invoice against the approved change.

Where judgement matters

Do not overwrite a paid amount merely to make a report balance. Find the missing payment, refund, fee or scope change. Retain the original supplier documents so that the numbers can be explained after the event.

Make it usable

Open the working tool and replace its sample assumptions with your own. Adapt the structured template to record the resulting decisions and handoffs. Review the finished version with the person responsible before it becomes an instruction to someone else.

Work the decision

A practice case

An original fictional scenario. Numbers are illustrative inputs; this is not a customer result or a provider performance claim.

An event budget contains a 6,000-dollar estimate for catering. The approved contract is 6,400 and payments so far total 4,000. The remaining contractual balance is 2,400; the estimate variance is 400. Adding estimate, commitment and payment into one total would triple-count the same service. Record the date of the comparison as well. A balance that was correct before yesterday’s payment can otherwise appear to contradict the receipt.

Three decisions and why each matters

Decision	Why it matters
Use one line of provenance for each service.	The estimate should point to the current commitment and its payment records.
Explain variance separately from unpaid balance.	One tells you the plan changed; the other tells you what remains to settle.
Keep unknown costs visible.	A missing final adjustment should remain unresolved rather than being assumed zero.

Make one usable artifact

Reconcile five budget categories with estimate, committed amount, paid amount, remaining balance and variance. Check that each payment belongs to one underlying obligation.

Then test the difficult case

A supplier corrects an invoice after a partial payment. Preserve the original receipt and show the effect of the approved correction on the outstanding balance.

Use the linked tool or structured template below to record the result. Confirm it against the actual people, agreements and permissions before using it for an event.