Do returns inwards and return outwards have debit or credit in trial balance?

In a trial balance, returns inwards (sales returns) are recorded as debits because they reduce total sales revenue, reflecting a decrease in income. Conversely, returns outwards (purchase returns) are recorded as credits since they decrease total purchases, indicating a reduction in expenses. Thus, returns inwards affect the debit side, while returns outwards impact the credit side of the trial balance.