Section 79

 The IRS started auditing 419 plans in the ‘90s, and then continued going after 412i and other plans that they considered abusive, listed, or reportable transactions, or substantially similar to such transactions.

Taxpayers and their representatives should be aware that the Service has disallowed deductions for contributions to these arrangements. The IRS is cracking down on small business owners who participate in tax reduction insurance plans and the brokers who sold them. Some of these plans include defined benefit retirement plans, IRAs, or even 401(k) plans with life insurance.
In order to fully grasp the severity of the situation, one must have an understanding of Notice 95-34, which was issued in response to trust arrangements sold to companies that were designed to provide deductible benefits such as life insurance, disability and severance pay benefits. The promoters of these arrangements claimed that all employer contributions were tax-deductible when paid, by relying on the 10-or-more-employer exemption from the IRC § 419 limits. It was claimed that permissible tax deductions were unlimited in amount.