Part IXAlteration of Contributions Etc.
143Power to alter contributions with a view to adjusting level of National Insurance Fund
(1)
Without prejudice to section 141 above, the F1Treasury may at any time, if F2they think it expedient to do so with a view to adjusting the level at which the National Insurance Fund stands for the time being and having regard to the sums which may be expected to be paid from the Fund in any future period, make an order amending Part I of the Contributions and Benefits Act by altering any one or more of the following figures—
(b)
the percentage rate specified as the secondary percentage in section 9(2),
(c)
the figure specified in section 11(1) as the weekly rate of Class 2 contributions;
(d)
the figure specified in section 13(1) as the amount of a Class 3 contribution;
(e)
the percentage rate F5specified as the main Class 4 percentage in section 15(3ZA)(a).
F6(2)
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(3)
An order under subsection (1) above may if it contains an amendment altering the figure specified in section 11(1) of the Contributions and Benefits Act as the weekly rate of Class 2 contributions and the F7Treasury think it expedient in consequence of that amendment, amend section 11(4) of that Act by altering the figure there specified as the amount of earnings below which regulations under that subsection may except an earner from liability for Class 2 contributions.
(4)
No order shall be made under this section so as—