Contributions paid or accrued by an employer to a welfare benefit fund generally will be deductible when paid to the fund, if they are otherwise deductible, subject to the limit discussed in Q 4097.1 If contributions paid by an employer during a taxable year exceed the deduction limit, the excess is treated as paid to the fund in the next taxable year.2
1. IRC § 419(a).
2. IRC § 419(d).