I see it being repeated here and especially since the new arrangement on NOT keeping time, that the ancient Jews (and I guess modern) don't and never did have a system for checking on who paid their tithes...
I may be a JW, but I have Jewish parents and thus I went to Hebrew School for 10 years. The Governing Body lied. The ancient Jews sure did check on who paid their tithes and who did not throughout ancient history, and they kept this system going until modern times. It is in the Talmud.
And they make you study about it as a kid (which most think is boring). In fact this whole thing on how and what to pay and offer was so detailed (because it had to be memorized back in the day due to so few Jews could not read or write in the Bronze Age) that it eventually became what is known as a tractate of the Mishnah known as Ma'aserot. For centuries and generations this tractate was used by the rabbis to dictate how to pay to the kohen (the priests) to ensure that each person paid the right amount of what came to each kohen so they could survive. Even after the Second Temple fell, this system was still in use because the kohen played a major part in synagogue services until the Reform movement came about in the 1880s.
Today, modern Jews must pay--that is "must"--a membership fee to belong to a synagogue, community, or Jewish movement as Jewish law teaches such a stipend is deserved and only right, and the fee is registered, monitored, and carefully noted because Jews are under the Mosaic Law (for the most part), even though Ma'aserot is no longer in effect outside of Orthodox Judaism--and the law teaches such a thing.
So the Governing Body is lying about their "basis" for removal of the hours reporting requirement. (On a scriptural basis for giving a report to Jesus after being in the ministry, see Luke 10:1 and 17.)