Sir82, the links in your post go to "page not found".
But I did find an article that gives more information on the highlights of the Tax Reform Proposal:
12 Things Nonprofits Should Know About Proposed Tax Reform
Unrelated Business Income Tax – Currently under the law, tax-exempt organizations may calculate unrelated business income tax (UBIT) based on the gross income of all business activities, minus the deductions connected with carrying on those activities. Losses generated by one activity can be used to offset the gains from another. However, under the Camp legislation, organizations will have to calculate UBIT separately for each business activity. This means that the loss from one unrelated business activity will no longer be used to offset the income from another unrelated trade or business activity. Furthermore, any sale or licensing by a tax-exempt organization of its name or logo (including any related trademark or copyright) will be treated as an unrelated trade or business.
From reading the rest of the article, there are some pretty big changes being proposed to tax law for nonprofits. Here is one:
Payout Requirement for Donor Advised Funds – Donor advised funds will be required to distribute all contributions within 5 years of receipt or otherwise face a 20% excise tax on the amount not distributed.
This one may impact the WTS as well:
Two-percent Floor for Charitable Giving – A two-percent floor will be imposed for charitable donations to qualify for a deduction. This means that taxpayers may only deduct the amount of their charitable giving that exceeds two percent of their AGI. A 2011 study by the Congressional Budget Office determined that this type of two-percent floor would likely cut charitable giving by approximately $3 billion
Would this not impact every JW who contributes? It sounds like they will lose the full amount of their donations as a tax exemption.