316. Effect of increases above the statutory requirement.

Where in any tax year1 the trustees or managers2 of an occupational pension scheme3 make an increase in a person's pension4, not being an increase required by statute5, they may deduct the amount of the increase from any increase which they would otherwise be required to make6 in the next tax year7. Where in any tax year the trustees or managers of such a scheme make an increase in a person's pension and part of the increase is not required by statute8, they may deduct that part of the increase from any increase which they would otherwise be required