Company Close Out

In a prior year a Company that was set up in Lawson was sold to a third party. When the assets were sold, we removed the assets from the company and as liabilities were resolved we removed the liabilities from the books of this company. As of 12/31 we were left with only intercompany receivables and equity. Now our tax department wants us to zero out the intercompany receivable balance and equity. Although these accounts have balances they don't zero out. How can we remove these balances without creating another interccompany balance? Any help is appreciated.