Upvote:1
There is no set amount. Although you are a non-visa national, in order to satisfy any questions from Immigration officials on your arrival, you can still use the same documents a visa applicant would need to provide. This would include having with you, for example:
Since youβre relying on your partner for most of the expenses, you should get a letter from them confirming how much the trip is expected to cost and how much they are contributing. It may also be best to book a flight that arrives after your partnerβs flight. That way you can either meet up and clear Immigration together, or he/she will already have cleared border control and will be contactable landside if needed.