“accounting period”

1. Agriculture Act 1993 Act 2 definitions
2. The Bingo Duty Regulations 2003 SI
3. British Steel Act 1988 Act
4. Broadcasting Act 1981 Act
5. The Co-ownership Contractual Schemes (Tax) Regulations 2025 SI 2 definitions
6. Coal Industry Act 1994 Act
7. Communications Act 2003 Act 2 definitions
8. The Competition Act 1998 (Determination of Turnover for Penalties) Regulations 2024 SI
9. The Consumer Credit (Running-Account Credit Information) Regulations 1983 SI
10. Corporation Tax Act 2009 Act
11. Corporation Tax Act 2010 Act 5 definitions
12. The Corporation Tax (Instalment Payments) Regulations 1998 SI
13. The Digital Markets, Competition and Consumers Act 2024 and Consumer Rights Act 2015 (Turnover and Control) Regulations 2024 SI 4 definitions
14. The Education (QCA Levy) Regulations 2002 SI
15. Electricity Act 1989 Act
16. The Enterprise Act 2002 (Mergers and Market Investigations) (Determination of Control and Turnover for Penalties) Regulations 2024 SI
17. The Enterprise Act 2002 (Mergers) (Interim Measures: Financial Penalties) (Determination of Control and Turnover) Order 2014 SI
18. Finance Act 1986 Act
19. Finance Act 1994 Act 2 definitions
20. Finance Act 1996 Act
21. Finance Act 1997 Act
22. Finance Act 1998 Act
23. Finance Act 2000 Act 2 definitions
24. Finance Act 2001 Act
25. Finance Act 2002 Act
26. Finance Act 2003 Act
27. Finance Act 2004 Act
28. Finance Act 2008 Act
29. Finance Act 2009 Act 2 definitions
30. The Finance Act 2014 (High Risk Promoters Prescribed Information) Regulations 2015 SI
31. Finance Act 2017 Act
32. Finance Act 2020 Act
33. Finance Act 2021 Act
34. Finance Act 2022 Act
35. Finance (No. 2) Act 2005 Act
36. Finance (No. 2) Act 2015 Act 3 definitions
37. Finance (No. 2) Act 2023 Act 2 definitions
38. The Financial Assistance Scheme Regulations 2005 SI
39. The General Betting Duty Regulations 2001 SI
40. Income Tax Act 2007 Act 3 definitions
41. Income Tax (Trading and Other Income) Act 2005 Act 2 definitions
42. The Insurance Companies and CFCs (Avoidance of Double Charge) Regulations 2012 SI
43. Judicature (Northern Ireland) Act 1978 Act
44. The Landfill Tax Regulations 1996 SI
45. Leasehold and Freehold Reform Act 2024 Act
46. The Meat (Official Controls Charges) (England) Regulations 2005 SI
47. The Meat (Official Controls Charges) (England) Regulations 2006 SI
48. The Meat (Official Controls Charges) (England) Regulations 2009 SI
49. The Motor Fuel Price (Open Data) Regulations 2025 SI
50. The National Security and Investment Act 2021 (Monetary Penalties) (Turnover of a Business) Regulations 2021 SI
51. Online Safety Act 2023 Act 2 definitions
52. The Pension Protection Fund (Closed Schemes) Regulations 2007 SI
53. The Pension Protection Fund (Entry Rules) Regulations 2005 SI
54. The Pension Protection Fund (Valuation) Regulations 2005 SI
55. The Postal Services Act 2011 (Taxation) Regulations 2012 SI
56. The Procurement Regulations 2024 SI 6 definitions
57. Product Security and Telecommunications Infrastructure Act 2022 Act
58. Regional Development Agencies Act 1998 Act 3 definitions
59. The Service Charges (Consultation Requirements) (England) Regulations 2003 SI
60. The Soft Drinks Industry Levy Regulations 2018 SI
61. Taxation (International and Other Provisions) Act 2010 Act
62. Terrorism (Protection of Premises) Act 2025 Act
63. Trade Union and Labour Relations (Consolidation) Act 1992 Act
64. The Value Added Tax, etc (Correction of Errors, etc) Regulations 2008 SI 5 definitions
65. Wireless Telegraphy Act 2006 Act 2 definitions

Definitions are taken from the instruments as published on zoomLaw, for guidance only. Check the instrument itself for its scope and any amendments.