According to the rules of lobbying, what must organizations notify members about during dues assessment?

Organizations are required to notify their members about the percentage of dues that are nondeductible due to lobbying activities. This is an important aspect of transparency in the financial dealings between the organization and its members. The rationale behind this requirement stems from tax regulations, specifically the Internal Revenue Code, which stipulates that certain expenses incurred for lobbying cannot be deducted from federal taxes.

By informing members about the portion of their dues that is nondeductible because it is allocated to lobbying efforts, organizations ensure that members are aware of how their contributions might affect their tax situation. This allows members to make informed decisions regarding their financial support of the organization while being conscious of any implications related to their own tax liabilities.

The other choices do not fulfill the specific requirement set out by lobbying rules in terms of member notifications. For instance, while it may be useful for members to know the total amount of dues collected or the organization's political affiliations, these factors do not pertain directly to the obligations regarding the tax-deductibility of dues. Similarly, the number of lobbying contacts made is not a requirement for communication during dues assessments and doesn't impact members' financial responsibilities or benefits directly related to their dues.