The British Forces Post Office® (BFPO) offers discounted mail delivery. And, there’s no charge for Forces Airletters (Blueys) sent to personnel on operational duty. When you want to stay in touch, you can send items weighing up to 2kg using:
- HM Forces Royal Mail Special Delivery Guaranteed
- HM Forces Royal Mail 1st Class Signed For
- HM Forces Royal Mail 1st Class
Find the right price for your mail and print postage from your computer.
Sending HM Forces Mail
Sending letters to HM Forces is straightforward, but here’s a few guidelines:
- don’t write the destination country on the BFPO address.
- seal the edges of large letters and packages with adhesive tape.
- Don’t use an AIR MAIL sticker.
Size and weight limits
One surface at least 90mm x 140mm.
The maximum size for Small Parcels is:
As with UK domestic mail, BFPO prices reflect Royal Mail’s current rates, so prices will depend on whether you are sending a letter, large letter or parcel.
Sending HM Forces Special Delivery Guaranteed™
If you're sending something valuable, use HM Forces Special Delivery Guaranteed™. This service is only for BFPO numbered addresses and gives you:
- a signature on delivery
- compensation for loss or damage
- pre-paid envelope for jewellery or valuables available at Post Office®.
HM Forces Royal Mail Signed For™
The ideal solution when:.
- You want a signature on delivery
- For sending items valued up to £50
Forces Free Air Letters (FFALS) for Forces personnel on operational duty
Otherwise known as ‘Blueys’,these are regulated by the Ministry of Defence and can change. You can:
- Get them in the Post Office®
- Send to Forces personnel on operational duty.
All parcels going to BFPO destinations outside the EU must have a signed customer declaration attached to the outside of the parcel. Read our Customs information.
HM Customs and Excise pays close attention to all HM Forces Mail arriving in or leaving the UK. It’s important to fill in and sign the declaration on Customs label CN22 or CN23. Local customs authorities at overseas bases also have the right to examine mail addressed to HM Forces. They may make charges under local regulations. For more about this, read our Customs information or ask at your local Post Office® branch.
Prohibited and restricted goods
Countries overseas also have their own rules on what they will and will not allow to be sent by post. Please check that you are able to send your item.
Can I send HM Forces mail free of charge?
Occasionally, parcels for HM Forces personnel on operational duty can be sent free of charge. However, this is usually for a short period like the lead-up to Christmas. When this service operates, it is only open to friends and relatives of Forces personnel who are sending personal items via a Post Office® branch and it can’t be used for business mailings.Back to top
Can I send mail to personnel serving in the armed forces of other countries?
HM Forces Mail services are only for HM Armed Forces personnel serving at BFPO addresses, but this also includes civilian contractors situated at a BFPO address. We don’t have any special postal arrangements with the armed forces of any other nation, so you will need to pay at our usual international rates.Back to top
Search our help centre
Buy your supplies
online at the
Royal Mail Shop
Did you know?
You can buy stationery at
the Royal Mail shop
Celebrating the 300th
anniversary of the birth
of 'Capability' Brown
Mark Her Majesty The Queen's 90th Birthday with our official souvenirs
direct mail for free
First World War 1916 stamps
and limited edition mementoes
Celebrate Beatrix Potter’s 150th
anniversary with our limited edition
Marking the 400th
anniversary of the death of
Celebrate the life and
work of Agatha Christie
Make sure your mail
moves with you.
Celebrate David Bowie
with our official souvenirs
most of your
350th anniversary of the
Great Fire of London
The smart way
to get your
and bring more
New into the
to win customers
at any life stage.
Celebrate Pink Floyd with our
Any mail going to your old home puts you at risk of fraud
to win customers
at any life stage.
Celebrate Windsor Castle with
Special Stamps and souvenirs
Explore Britain's prehistory
with Special Stamps
Check out the
home mover kit.