Work Out Debtor Days Bundle Add to basket £1.50 inc VAT SKU: TK29 Category: Toolkits. Description Product Description Download our Work Out Debtor Days Bundle Today Work out your DSO, which stands for stands for Days Sales Outstanding, sometimes called Debtor Days. previousnext Related products Credit Collection Letter Two with Interest £1.00 inc VAT Request for credit claim Judgement £1.50 inc VAT Terms & Conditions: Ownership and Risk £1.00 inc VAT Credit Collection Final Demand £1.00 inc VAT