All physical cash is included as part of one's total wealth.

All funds stored in bank accounts, however, any interested earned is considered haram and is not included.

According to the opinion of most scholars, all gold and silver is counted as wealth (whether it is worn or not).

Any owed debts that you believe could be recovered immediately, counts as wealth. If you have already recieved some of the debt, pay Zakat on that amount.

If you are buying and selling shares then Zakat is due on their current market value. If you aren't selling, then Zakat is only due on dividends you recieve from them.

Zakat is only due on the money you recieve from a pension fund, not what you contribute.

Zakat is only due on the total of investments made into any ISA's/Trusts, not on the interest/gains you've recieved.

Any value stored in crypto is Zakatable due to it's nature as a usable currency.

Business assets such as stock for sale, land and real estate that has been bought for the purpose of resale, raw materials and goods produced for sale are subject to zakat.

Any other investments made, not on the interest/gains you've recieved.