On which financial statement would you expect to find Allowance for Doubtful Accounts?

Shown in the statement of the financial position 

statement of financial position (balance sheet) shown doubtful Accounts.

Balance Sheet or Statement of Financial Position

Off course Balance sheet it is

Allowance for doubtful debt is shown in Statement of Financial Position(Balance Sheet) under 'Current Assets' Immediately after receivables as deduction, or receivables amount can be shown as net of allowance for doubtful debts. 

Balance Sheet, it should be by deducted from the accunts receivable

Balance Sheet...................

In the "Statement of Financial Position", of any kind of business, who works with credit transaction.

you will  find it in Notes to the accounts