Are the investments in my USD Cash Yield portfolio subject to withholding tax?

The ETF behind the USD Cash Yield portfolio is not subject to the US government's withholding taxes, as it is a UCITS-compliant ETF domiciled in Ireland with US bonds as the underlying assets. As such, this means that all returns are automatically fully reinvested.

It's important for investors to consult with tax advisors or review the specific prospectus and tax documentation of the ETF to understand the tax implications fully. Additionally, tax regulations and treaties can change over time, so it's essential to stay updated on any developments that may affect the taxation of investments in US government bonds through UCITS-compliant ETFs.