pb4uski
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
When revenue is recognized there would be a corresponding charge for any amounts expected to not be collectible - usually based on historical experience - (or for returns in a retail setting) so in most cases the effect on earnings of the "sale" would be the amount of cash expected to be collected for the services provided during the period. Differences between what is estimated to be uncollectible and the ultimate uncollectible amounts would flow through to earnings as a change in estimate as better information on collectability becomes available.