Companies Act 2006, section 173

Duty to exercise independent judgment

Part 10 A company's directors

(1)A director of a company must exercise independent judgment.

(2)This duty is not infringed by his acting—

(a)in accordance with an agreement duly entered into by the company that restricts the future exercise of discretion by its directors, or

(b)in a way authorised by the company's constitution.

Definitions used in section 173

director

In the Companies Acts “director” includes any person occupying the position of director, by whatever name called.

Defined in s.250 · see it in the full Act
company

“company” means a company formed and registered under this Act, that is—

(a)

a company so formed and registered after the commencement of this Part, or

(b)

a company that immediately before the commencement of this Part—

(i)

was formed and registered under the Companies Act 1985 (c. 6) or the Companies (Northern Ireland) Order 1986 (S.I. 1986/1032 (N.I. 6)), or

(ii)

was an existing company for the purposes of that Act or that Order,

(which is to be treated on commencement as if formed and registered under this Act).

Defined in s.1(1) · see it in the full Act

(4) In this section and that Schedule “company” includes any body corporate.

Defined in s.1159(4) · see it in the full Act

Cases considering section 173 (56)

Marcos De Menezes v Eduardo Machado Dos Santos Alves & Ors

[2026] EWHC 1906 (Ch) · 24 July 2026

The court refused permission for the section 173 claim because it was not separately particularised and the evidence disclosed no prima facie failure to exercise independent judgment. (see paras [129]-[130])

Lux Films v Andrew Fowler & Anor

[2026] EWHC 963 (KB) · 24 April 2026

Applies the duty to exercise independent judgment. Fowler’s personal interest in establishing and advancing AFML dictated his conduct while he remained a director, contrary to Lux’s interests (see paras [75]-[79]).

FP Redhill Limited & Ors v Ashank Patel & Ors

[2026] EWHC 77 (Ch) · 19 January 2026

The court treated the directors’ duties under section 173, together with sections 171, 172 and 174 to 177, as applying to the handling of the claimant SPVs and found breaches arising from improper payments and conflicts of interest (see paras [308]-[309]).

36 more judgments, and what each says about section 173, are in the case-law panel in the full Act.

Explanatory note

333.This duty codifies the current principle of law under which directors must exercise their powers independently, without subordinating their powers to the will of others, whether by delegation or otherwise (unless authorised by or under the constitution to do so).

334.The section provides that directors must not fetter the future exercise of their discretion unless they are acting:

  1. in accordance with an agreement which has been duly entered into by the company; or

  2. in a way authorised by the company’s constitution.

335.The duty does not confer a power on the directors to delegate, nor does it prevent a director from exercising a power to delegate conferred by the company’s constitution provided that its exercise is in accordance with the company’s constitution. Under the draft model articles of association for private companies limited by shares, the directors may delegate their functions in accordance with the articles.

All the explanatory notes for the Act

Amendments and notes

8 notes from legislation.gov.uk

Modifications

  1. C213Ss. 170-177 modified (1.3.2016) by The NRAM plc (formerly Northern Rock plc) Consequential and Supplementary Provisions Order 2016 (S.I. 2016/114), arts. 1(1), 7(1), (3), Sch. para. 1(e)
  2. C215Ss. 170-177 modified (16.7.2026) by The Modification of the Law (British Steel Limited Property Transfer) Regulations 2026 (S.I. 2026/833), regs. 1(2), 6(2), Sch. para. 1
  3. C226Ss. 170-177 modified (22.2.2008) by The Northern Rock plc Transfer Order 2008 (S.I. 2008/432), art. 17(1), Sch. para. 2(e)
  4. C227Ss. 170-177 modified (8.00 a.m. on 29.9.2008) by the The Bradford & Bingley plc Transfer of Securities and Property etc. Order 2008 (S.I. 2008/2546), art. 13(1)(3), Sch. 1 para. 2(e)
  5. C228Ss. 170-177 modified (9.30 a.m. on 7.10.2008) by The Heritable Bank plc Transfer of Certain Rights and Liabilities Order 2008 (S.I. 2008/2644), art. 26, Sch. 2 para. 2(e)
  6. C229Ss. 170-177 modified (retrospective to 30.3.2009 at 8.00 a.m.) by The Amendments to Law (Resolution of Dunfermline Building Society) Order 2009 (S.I. 2009/814), arts. 1(2), 7, Sch. para. 2(e)
  7. C230Ss. 173-179 applied (8.12.2017) by The Risk Transformation Regulations 2017 (S.I. 2017/1212), regs. 1(2), 83(1) (with reg. 189)

Commencement

  1. I42S. 173 wholly in force at 1.10.2007; s. 173 not in force at Royal Assent see s. 1300; s. 173 in force at 1.10.2007 by S.I. 2007/2194, art. 2(1)(d) (with savings in art. 12 and subject to transitional adaptations specified in Sch. 1) this amendment is subject to savings and/or transitional provisions, see the commentary.