You mean contributions to the incentive scheme are from gross income before tax? Are you sure about that? And usually discounts on share prices are assessable for income tax etc. and eventual gains are assessable for CGT. In short, stock incentive schemes are often (usually?) less favourable from a tax point of view than pension contributions.I am pretty sure this type of plan is better than any pension contribution, full tax relief essentially at your marginal rate
Employee share schemes
Employees in Ireland can get shares, or share options, from their employer free of income tax under certain conditions.