Historical data incorrect for payroll conversion from desktop to QBO
My client converted their desktop QBs to QBO and now their payroll is off by the retirement contributions. I can see that the historical data was off by that exact amount. Now their W2s show less contributions than they actually made. However, I do see where these contributions showed up on the balance sheet liabilities for the months that the desktop version was used. How do I fix this on their W2s so that their box 12 is no longer understated? Their box 1 and 16 amount is also overstated by this amount.