If a balance exists on an account with a Suspense account type, these amounts will appear on the Current and Year-To-Date Ledgers and the reports will be in balance. However, since suspense account balances are not included on financial statements, your financial statements appear out of balance.

Refer to articles below for steps and considerations on clearing suspense account balances.

DocLink: Why does the suspense account show a balance after I posted an adjustment?
DocLink: How do I clear the balance in a suspense account posted in the current fiscal year?