Since it was my contact that implied that at some point elders might sit down with "family heads" and "single brothers" and review their past years' tax returns to see it they could agree on how much could be donated on a regular basis - let me clarify and add my own 2p to the mix:
Such a move would most likely be "voluntary" or "suggested" as a way to "help the brothers" calculate what would be "fair and reasonable for them."
But we all know what "voluntary" and "suggested" would mean in a Watchtower environment. Remember that 1975 was only "suggested" by Fred Franz as the "possible arrival of Armageddon." Look what JWs did in the years prior to that - selling properties, quitting jobs, moviing to where the "need was greater." The Watchtower often uses this approach to ease the flock into something that they will later establish as hard and fast policy.
Also remember that those who are approached and "offered this" financial counseling will be hard pressed to refuse because of the hammer of "resisting the direction of Jehovah's organization" can lead to loss of privileges and accusations of being "spiritually weak." We all know where that leads. It's all WT blackmail and intimidation. We see it in action as almost an ingrained method of getting compliance.
I can see it being handled this way: "Brother Wimply. Perhaps we could sit down and discuss your family's finances to see if we can help you budget for your planned (weekly, monthly, quarterly) donation amount. (In the USA) you can deduct those donations on your income taxes. Perhaps we could have Brother H. R. Block sit down with you at a computer and see if a larger donation would be offset by increased tax deductions - thereby not creating an undo burden on you or your family. This is purely voluntary on your part, but the elder body wants to be sure that everyone is carrying their fair share of the congregation's commitment to the worldwide preaching and building work. This tax review is another loving arrangement provided by Jehovah to help you."
The Watchtower might even come up with a computer program that would do this on a local laptop manipulated by a trained elder or MS. Bringing along last year's tax forms would be "voluntary" (yeah, sure!), but without them (the elders would reason convincingly) an accurate estimate could not be calculated.
It is true, at least in the USA, that some taxpayers will actually increase their contributions by a substantial amount on the advice of their accountant or tax advisor. A difference in net income could move them down to a lower tax bracket or allow them to take additional deductions in another category (medical expenses, for example). If the brother owns his own business, especially as a sole proprietor or LLC, and makes the contribution from a business account rather than a personal account - the benefits might actually put him in a far better tax bracket.
I think this was the possibility that my contact was hinting at for further out in the future. Maybe, if the Watchtower has been following this thread, talk of such a possibility and the ramifications might make them re-think implementing such a policy. Or, maybe it was all just a false rumor and now we have given the Watchtower something to actually consider doing in the future.
Who really knows? I certainly don't. But as my contact emphasized in our last conversation, "They don't call rank and file Jehovah's Witnesses 'the other sheep' without good reason. The majority will drink the kool-aid and do what they are told. Those that don't will give up their families. Tax returns? Petty stuff and not a big deal to the average JW, especially married brothers with dedicated sisters for wives."
All we can do is watch. All we know is that there is something afoot at WT headquarters and we will see a lot of changes in coming months to rival what we have seen since the Governing Body declared themselves the "Slave."
JV