A plain reference · postage and delivery

You bought the stamps without VAT. That does not mean you can sell the postage without it.

Royal Mail's universal service is exempt, couriers are not, and the delivery charge on your own invoice usually follows the goods. Which is why so many online sellers get it wrong in both directions at once.

Food runs on the same logic. Zero-rated by default, standard-rated once it is catering, eaten on your premises, or hot - and a shared food court counts as your premises. See VAT on food and takeaways.
Royal Mail's universal service is exempt — but only where it is subject to price and regulatory control. Anything else, including Royal Mail's own commercial services and every courier, is standard-rated. Stamps carry no VAT when you buy them. But the delivery charge you make to a customer is part of a single supply of delivered goods, so it follows the liability of the goods — zero-rated goods, zero-rated delivery; standard-rated goods, 20% on the postage too, however you bought it.
Send me one sales invoice showing goods, delivery and packing as separate lines. I will tell you whether each line is on the right rate. If you sell zero-rated goods online there is a decent chance you have been paying HMRC output tax that was never due - and nobody ever audits a business for overpaying. Free, back to you within one working day, and nothing follows unless you ask for it. Send me an invoice.

Buying postage

Section 1.3 of VAT Notice 700/24 exempts postal services provided by Royal Mail Group Limited under its remit as the universal postal service provider, where those services are subject to price and regulatory control. The notice then says plainly that the exemption "does not extend to similar services provided by the Royal Mail or other suppliers".

That sentence does more work than it looks. The exemption attaches to a regulated service, not to a company and not to the act of posting something.

What you buyTreatmentReclaim?
Unused postage stampsNot subject to VATNo — there is none
Royal Mail universal service under price and regulatory controlExemptNo
Royal Mail services outside that remitNot exemptYes, on the VAT shown
Couriers and other delivery suppliersNot exemptYes, on the VAT shown
Separate packing charge, within the UKStandard-ratedYes
Exempt is not outside the scope, and neither is nothing. Stamps bought at face value are not consideration for a taxable supply; an exempt Royal Mail service is. Those sit in different places on the return, in the same way bank charges do. The codes to use are set out for Xero and for Sage.

Selling postage, which is the part that costs money

Nothing about how you bought the postage carries over to what you charge for it. Section 2.2 of the notice splits it two ways.

Part of a single supply of delivered goods

Where delivery is free, built into the normal selling price, or required under the contract to a place the customer specifies, you are making one supply of delivered goods. VAT follows the liability of the goods — and the notice is explicit that this holds even where the delivery is itemised separately on the invoice. Splitting it onto its own line changes the presentation, not the analysis.

A separate supply

Where delivery is not required under the contract, or you are delivering someone else's goods, it is a separate supply of delivery services. That is always standard-rated, whatever the goods are. Goods supplied on approval with a delivery charge fall here too.

The arithmetic, in both directions

Take a £4.95 delivery charge and 2,000 orders a year.

Standard-rated goodsZero-rated goods
Correct treatment of delivery20%Zero-rated
VAT in £4.95 if charged at 20%£0.825£0.825
If you get it wrongUnder-declared £0.825 an orderOver-declared £0.825 an order
Across 2,000 orders a year£1,650 owed to HMRC£1,650 given to HMRC

The first column is the one that keeps people awake, and it is the smaller problem. Under-declaring gets found, assessed and corrected, and the business ends up where it should have been plus interest.

The second column never gets found. A business selling zero-rated goods — children's clothing, books, most food, printed matter — that charges 20% on delivery is paying HMRC output tax that was never due, on every single order. No inspection will ever raise it, because HMRC is not out of pocket. It persists until somebody reads the invoice template, and the only route back is a claim capped at four years.

Disbursements

Calling postage a disbursement is popular and almost always wrong. Paragraph 3.4 of the notice opens one specific door: a supplier of printed matter may treat mail charges made by mail operators as a disbursement, but only where the supplier meets the general disbursement requirements in VAT Notice 700, ceases to be responsible for the mail once the mail company accepts it for safe delivery, and passes on any discount or rebate from the mail company to clients in full and shares it fairly.

Three conditions, all of them tested, and the rebate one is where arrangements usually fail. Outside that route, describing a line as a disbursement on an invoice does not make it one.

Three things to check this week

References above are to HMRC's VAT Notice 700/24, linked in full. This page is a general reference and not advice on a particular business — if a line on your own invoices does not match what is set out here, that is exactly the sort of thing worth sending over.