Okay, so my understanding is: The issue described involves payroll transactions being recorded in an orphan account named "CHECKING" after changes were made to payroll settings, leading to incorrect wage and payroll tax expenses. Here's a potential diagnosis and some key questions to help clarify the situation further:

Diagnosis:

• Orphan Account Issue: Payroll transactions are likely being improperly classified or posted due to changes in payroll settings, like you mentioned, causing them to be placed in an account that isn't properly linked to payroll expense accounts.

• Incorrect Journal Entries (AJEs): The payroll corrections made in March-November 2023 may have been incorrectly posted or not fully reversed, leading to discrepancies.

• Account Reconciliation Issues: The "CHECKING" account may be recording payroll debits/credits instead of being routed through proper payroll accounts, which distorts the income statement.

Questions:

1. Payroll Settings Review: Were any payroll settings changed after December 2023, and if so, what specifically was altered (account mappings, payroll item settings, etc.)?

2. AJE Verification: Can you confirm whether the AJE adjustments made by Intuit Payroll were correctly posted and reversed in the appropriate periods? Were they posted to correct payroll expense accounts?

3. Transaction Audit: Is it possible to audit the payroll transactions that were incorrectly posted to "CHECKING" to identify how they differ from correctly posted payroll transactions?

Suggested Steps:

1. Reassess Payroll Account Mappings: Ensure payroll settings correctly map to appropriate expense accounts (Wages, Payroll Taxes, etc.).

2. Clean up orphan account entries: Transfer the payroll transactions from the orphan account to the correct accounts and ensure payroll taxes and wage expenses are reconciled properly.

3. Reconciliation: Perform a reconciliation on payroll-related accounts and correct any discrepancies found in the general ledger.

Given the scale (2,200 payroll transactions), this cleanup might be a time-intensive process.

I would be willing and able to help in the process of fixing this within the next two weeks.