Fixing a Past Payroll 401k

Hi there, @CoreBG. I'm here to lend a hand in fixing your past payroll for 401K in QuickBooks Desktop (QBDT).

You'll want to enter a wage base and a tax adjustment to add to the company match. Here's how:

1. Run and customize the payroll detail review report.
2. From the report, verify that tax amounts are calculated right based on wage limit and tax rate. Then, determine if you want to decrease or increase the wage base and tax amount.
3. Once done, go to the Employees menu and select Payroll Taxes and Liabilities. 
4. Choose Adjust Payroll Liabilities.
5. Select the correct Effective Date. (It should be the last day of the affected quarter).
6. Click Employee Adjustment.
7. Choose the affected employee and select the SUI from the Item Name column.
8. Enter the adjustment amount in the corresponding column (negative to decrease, positive to increase).
9. Click the Accounts Affected. Then, choose Do not affect accounts or Affect liability and expense accounts.

After that, click the Next Adjustment button to enter adjustments for the rest of your employees. Then, open the Payroll Detail Review report again. Verify the accuracy of the adjustments you entered. You can visit this resource to learn more about the process: Entering wage base and tax adjustment to correct employee's quarter (qtd) or year to date (ytd) total.

Once the adjustment shows in the payroll liabilities balance, I recommend checking this article for more information why scheduled liabilities show: Fix overdue or red scheduled liabilities in QuickBooks Desktop.

For more hints and resources while working with your payroll transactions in the future, you can visit the open topics from our help articles: Help on common payroll topics.

Please let me know how else I can help you with QuickBooks or payroll. I've got your back, and I'm always here to help. Have a good one!