Why it matters
The amount and timing depend on the type of supply, tax point and applicable VAT accounting method. A business needs to distinguish the sales value from the tax it collects or owes. Appropriate invoicing and records support the return, and unusual transactions should be reviewed rather than given a default code.
A practical example
In a simplified standard-rated sale, £1,000 plus £200 VAT produces a £1,200 invoice. The £200 is output VAT, not additional profit. The business then considers permitted input VAT and other adjustments in working out the VAT return position.
A common misunderstanding
Charging customers VAT does not mean the same amount is immediately free to spend. It also is not always correct to account for it only when the customer pays; the scheme and tax-point rules matter. Keep VAT cash requirements visible in the forecast.
Sources & further reading
General information for UK readers, updated 3 November 2026. Examples are illustrative. Tax treatment depends on the facts and current rules; seek advice before making a decision.