What it is:
Bank debits are reductions in customer accounts.
How it works/Example:
Why it matters:
It is important to that deposits are liabilities to banks (they're assets to you, though). That's because they're obligations to customers. Accordingly, when you write a check, the bank's liabilities are reduced. In accounting, we would the bank's liabilities and credit the bank's balance (which also was reduced because it gave $50 to Target).