Short answer

The correct format

For a UK letter, write the recipient name and address clearly on the front, ending with the post town and full postcode. Use the UK postcode exactly as provided, usually in uppercase with a space before the final three characters. Put a return address in the upper-left on the front or on the reverse, and use a UK stamp in the upper-right.

Copy-ready example
ALEX MORGAN
14 HIGH STREET
BRISTOL
BS1 4DJ

The basic UK address order

A UK domestic address normally runs from the recipient and property details to the street, locality when needed, post town, and full postcode. The post town and postcode are essential for sorting; do not replace the postcode with a US state and ZIP format.

Use the exact spelling and postcode supplied by the recipient. Royal Mail’s Postcode Finder is the right place to check a UK address that looks incomplete or unfamiliar.

  • Recipient name
  • Property number or name and street
  • Locality or area, when needed
  • POST TOWN and full POSTCODE

Copy-ready UK envelope example

Keep the postcode on the final line. Uppercase lettering and a clear, uncluttered address block help automated sorting, especially on a light envelope.

Return address and stamp placement

Put the recipient address on the front of the envelope. A sender or return address can go in the upper-left on the front or on the reverse, depending on the envelope and service. Place the stamp or postage in the upper-right of the address side.

How UK and US envelope formats differ

US mail ends with city, two-letter state abbreviation, and ZIP Code, while UK mail ends with a post town and postcode. A UK address may also use a property name, locality, or county; do not force those lines into a US-style state line.

  • Use a UK postcode, not a ZIP Code
  • Use the post town on the line before the postcode
  • Do not add a US state abbreviation
  • Check international postage when sending from outside the UK

Questions about this format

What is the format of a UK address on an envelope?

Write the recipient, property and street, any required locality, then the post town and full postcode on the final line.

Does a UK envelope use a ZIP Code?

No. UK mail uses a postcode, usually written in uppercase with a space before the final three characters, such as BS1 4DJ.

Official references

Reviewed against the postal guidance listed below. EnvelopeFormat is independent and is not affiliated with USPS or Royal Mail.

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