This page was last updated:  June 08, 2021

 How do I contact the London Federal Benefits Unit?

A.  The best way to contact the London Federal Benefits Unit is by using our online form.  PLEASE ensure your contact information is filled out.   We aim to reply within 10 (ten) business days.

B.  For queries which require more narrative you can write to us at the following address:

U.S. Embassy London
Federal Benefits Unit
Box 0005
33 Nine Elms Lane
London SW11 7US

C.  If necessary, by appointment, you can visit the London Federal Benefits Unit Tuesday through Thursday between the hours of 10:00 a.m. and 1:00 p.m. at the U.S. Embassy, 33 Nine Elms Lane,  London  SW11 7US.

The London Federal Benefits Unit is closed for appointments on the last Thursday of every month for internal training purposes.

D. You can call the London Federal Benefits Unit Tuesday through Thursday 10:00 a.m. until 1:00 p.m. London time (GMT or BST) via the telephone numbers below.
The London Federal Benefits Unit is closed for telephone calls on the last every Thursday of every month for internal training purposes.

Callers within the UK
Please call 020-7499-9000  Extensions 23926

International callers
Please call +44-20-7499-9000  Extensions 23926

If you cannot dial extensions directly please listen carefully for the automated switchboard option of “Federal Benefits Unit”.

How do I mail original documents to the Federal Benefits Unit?

Please do not mail original documents to SSA’s international office in Baltimore!  To ensure secure delivery and return, all original documents should be mailed to the Federal Benefits Unit via Special Delivery from the Royal Mail.

If you are mailing documents in connection with claiming benefits ensure you include:

• a note of your claim number;
• the name of your Claims Representative (if known);
• a note telling us if your documents are to be transferred to a technician at SSA in Baltimore.

A return self-addressed Special Delivery envelope must be provided.
You should retain the tracking numbers in the event a problem occurs.

The London Federal Benefits Unit mailing address is as follows:

U.S. Embassy
Federal Benefits Unit
Box 0005
33 Nine Elms Lane
London SW11 7US