but an employer can pay a % of salary in to a pension with tax benefits. What's the difference in them paying a lump sum?
Any other benefits arising as a result of any salary sacrifice arrangement, and not specifically approved by Revenue as being exempt, are deemed to be payment of emoluments by an employer and chargeable to tax.
Where income is not paid during the year e.g. a bonus, commission or other income which only arises after the end of the year, such income cannot be taken into account for the purposes of salary sacrifice