You are correct Slogger. From tomorrow the upper limit for a cash ISA is £15,000 and you can pay in up to that limit between now and end of tax year. Unless of course your ISA has any restrictions. Mine allows payments in the first 180 days only.
Quote: From 1 July, the allowance will rise to £15,000 and for the first time, all of it can be put in a cash New ISA (NISA), the new name for ISAs. Alternatively, you could invest the whole lot in a stocks & shares NISA.
Mix 'n' match. Split the allowance between and cash and stocks & shares NISAs - you're allowed one of each per tax year.