Is it possible for you to consider making a QMMF available for Invest ISA so that UK investors can avoid UK income tax on uninvested cash from April 2027. Thank you.
Can’t you just buy CSH2 inside the ISA?
CSH2 works for this, and since it’s accumulating nothing is paid out as interest in the first place; the return just shows up in the price. From what was posted in the “New tax on ISA interest” thread, the HMRC factsheet seems to allow money market funds and short gilts inside a Stocks and Shares ISA as long as they’re part of a wider portfolio rather than the whole thing, while the 22% charge lands on interest from plain uninvested cash. So parking the waiting money in CSH2 instead of cash would likely sidestep it, though I’d reread the final rules before April 2027 since the details are still moving.