Visa on landing for US Citizens

[BadKarma]

Hi Guys,

I am a naturalized US citizen and I am planning to travel to the UK in about a week from now on business. I am being sent on a week-long work trip from my US-based company that has a branch in London. What kind of papers should I have with me as supporting documents when questioned by the immigration officer responsible for the visa?

Thank you.

 

[nkm-oct23]

Just your US passport.

 

[maxciriloy]

Just your US passport. You must have to it.

 

[cafeconleche]

Proof of your reason for being there, funds, return ticket and accommodation will also be useful if they ask.