This issue goes as far as the post office also as the banks have put a cap on the amount of cash that can be paid in via the PO, the limit is 10k per annum for all the main banks as far as I know
Indeed. We have had this discussion before. The actual amount that can be paid in via the Post Office is governed by your actual bank and there are variations. You need to check with your bank as this can vary both in the limit of a daily/monthly deposit and an annual limit. Here are two examples
External Link/Members OnlyExternal Link/Members OnlyHowever the limits will depend on whether it is a personal account or a business account and the latter in particular, can have more flexible variations 'by arrangement'. Not all personal accounts are the same with the same bank. I seem to recall fairly recently NatWest were in the news for imposing discretionary stricter limits on cash deposits at actual branches?
Finally some post offices themselves may impose a smaller daily limit for security reasons relating to that specific branch.
Then there is the issue of deposits triggering either the bank questioning the source or an investigation. This is also hugely variable and has been discussed before but a single deposit of £5k is often quoted as a threshold for this to happen, but once again there is much variation between both individual banks and specific accounts within that bank.
In terms of bank transfers, then this has also been discussed before at length and my understanding is that whilst the payees bank account may have more flexibility to hide their name if it is a business account, the payer personal account will always show the full name, though once again if payment was from a business account this could show the trading name.