QB Issue Resolution:

Expense entry is always DEBIT to Expense account (Profit & Loss).
Income entry is always CREDIT to Income account (Profit & Loss).
Bank Deposit is always DEBIT to Bank Account (Balance Sheet).
Bank Withdrawal is always CREDIT to Bank Account (Balance Sheet).

Notice: #1 is debit and #4 is credit. #3 is debit and #2 is credit.

Resolution for Issue 'Is an expense a debit entry or a credit entry?' available: Yes (Solved).
Source: Intuit Community forum.

Is an expense a debit entry or a credit entry?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

Support for credit
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