Thanks. This is fixed in CORE-2813 for v4.4.0.
 
	In the interim, you can patch this yourself by updating /components/reports/tax_liability/tax_liability.php 
	Find the following line:
 
'invoices.subtotal', 'invoices.currency', 'invoices.date_closed',
	Replace it with:
 
'invoices.id', 'invoices.subtotal', 'invoices.currency', 'invoices.date_closed',