If you transfer money to a brokerage account and only part of it is used to buy shares or ETFs, you will allocate this in two steps.
Step 1: Allocate the transfer
If your brokerage account is linked in TaxTank:
Go to Bank Feeds and find the outgoing transaction to your broker
Select Transfer and choose your brokerage account as the destination
This records the movement of cash into the broker account.
If your brokerage account is not connected to Bank Feeds:
Allocate the transaction to a personal category, either a preset category or a custom personal category
This still correctly records the money leaving your bank account.
Step 2: Add the share or ETF purchase
Go to Holdings Tank → Trades
Click Buy
Select the asset type, such as Shares or ETFs
Search for and select the asset
Enter the number of units, total purchase amount or price per unit, any brokerage fees, and the purchase date
This records the investment itself.
What about leftover cash?
Any remaining balance stays as cash in your brokerage account. You do not need to allocate it unless you later use it to buy another investment or transfer it out.
In short: allocate the transfer to record the cash movement, then record the trade in Holdings Tank to track the investment.