Foreign tax credit on UK equity and interest investments

Trying to understand what I need to report in the US regarding UK dividends and interest, and the tax credit available. Here are my assumptions so far. Am I correct?

Dividends on equities:
In the UK, a £90 dividend is reported gross at £100 with a notional 10% tax credit.
In the US, I report the £90, and the notional tax credit ignored.

Fund producing interest income in UK:
In the UK, £80 interest is reported gross at £100 with a 20% tax credit for tax withheld at source.
In the US, I report £100 and claim a tax credit for the 20% tax withheld.

[I realise the fund in the second case is a PFIC but that is a different story. Trying to understand how the income and tax credit is recognised.]

Thanks!

The basic position is as Scotsman1000 has set out. However, there may be an additional relevant factor-any additional UK tax payable on the dividend and interest income.

The dividend and interest income is from UK sources. Therefore, even if Scotsman is a remittance basis user as respects non-UK source income, he will be taxed on this income on an arising basis.

Any further tax payable on the dividend and interest income will depend on Scotsman’s overall personal circumstances in the income tax year concerned.

In computing any further UK tax Scotsman should bear in mind that dividends are subject to special rates of UK tax-lower than that applying to other types of income. Further, the taxation of dividend income in the UK has been materially changed for 2016/17 onwards, although the principal of lower rates remains unaltered.

Scotsman will wish to take into account any additional UK tax in considering claims for foreign tax credits in his US returns. There are detailed aspects to this, and others may comment further on this topic.