| Taxes Management Act 1970 | 1970 c. 9 | Pt. 5 | applied (with modifications) by S.I. 2001/1004, Sch. 4 Pt. 3B para. 29V(8) (as inserted) | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 18 | Yes | |
| Taxes Management Act 1970 | 1970 c. 9 | s. 98A | applied by S.I. 2001/1004, Sch. 4 para. 21A(6)(7) 21D(7) (as inserted) | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 11 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 67(3) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 3 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 80(3) | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 19(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 80(3A) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 19(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 83A | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 17 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | reg. 90H(2) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 4 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 1(2) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 5(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 1(4) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 5(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 10(2) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 6(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 10(3A) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 6(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 11(2) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 7(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 11(3A) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 7(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 11(4) | words inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 7(c) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 11ZA | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 8 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 14(1) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 9 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 15(1B) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 10 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 21A-21F | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 11 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 22(A1) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 12 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 25(1) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 13 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 Pt. 3B | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 18 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 1(2) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 20(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 1(2) | words omitted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 20(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 7(13)(b)(ii) | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 21(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 7(13)(b)(iii) | substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 21(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 9(2) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 22(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 9(3) | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 22(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 10(2) | words omitted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 23 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 11(2) | words omitted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 24 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 11(4) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 25 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 15(1A)(c) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 26(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 16(5)(e) | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 26(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 22(1)(daa)para. 22(2)(daa) | word inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 27(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 22(1)(db)para. 22(2)(db) | word substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 27(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 22(1)(e)para. 22(2)(e) | omitted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 27(c) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 22(2)(daa) | word inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 28 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 24(2)(f) | word inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 29(a) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 24(2)(g) | word substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 29(b) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 24(2)(h) | omitted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 29(c) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4 para. 25(2) | word substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 30 | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4A | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 14 Sch. | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 4B | inserted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 14 Sch. | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 7 Pt. 2 Table | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 26(c) | Yes | |
| The Social Security (Contributions) Regulations 2001 | 2001 No. 1004 | Sch. 7 Pt. 2 Table | words substituted | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 31 | Yes | |
| Income Tax (Earnings and Pensions) Act 2003 | 2003 c. 1 | s. 684(4A) | applied by S.I. 2001/1004, Sch. 4 Pt. 3B para. 29X (as inserted) | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 18 | Yes | |
| Finance Act 2007 | 2007 c. 11 | Sch. 24 | applied by SI 2001/1004 Sch. 4 para. 21A(8) 21D(9) 21F(12) (as inserted) | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 11 | Yes | |
| The Income Tax (Pay As You Earn) (Amendment) Regulations 2012 | 2012 No. 822 | reg. 54 | applied (with modifications) | The Social Security (Contributions) (Amendment No. 3) Regulations 2012 | 2012 No. 821 | reg. 15 | Not yet | |