Estimating Uncollectible ARAllowance MethodIs GAAPAccounts Receivable is written down to get to the net realizable valueThe allowance for uncollectible accounts is a contra assetAR $\%$ of each period accounts receivable is estimated to be uncollectible $($ending bal. in allowance T acct$)$Current expected credit loss model $$ balance in the allowance for uncollectible should be based on current conditions, past experiences & future expectationsAging of Receivables Method$-$The sum of the product for each aging category will be the desired ending balance in the allowance account $($ending bal. in allowance T acct$)$