Kisun

Hello, This is the first time to enter 'dividend' information in an HMRC form. Let me ask you some questions. I need to add the 'dividend from companies' amount in a Self Assessment form in HMRC. I have two accounts one is ISA and the other is NON-ISA share dealing. I can view the dividend list from the History menu. (1) Are those amounts before-tax both ISA and NON-ISA? (2) How does W-8BEN work in this case, if dividend came from US companies. (3) Is "iShares VII PLC - iShares Core S&P ETF GBPH Dist DIVIDEND 802@0.0437" UK dividend or foreign(USA) dividend? Thanks.