Below are details of the amendments that were published on 19 October 2005.
| Section | Title and details of the update |
| IHTM01011 | Revised Office structure |
| IHTM01012 | Revised Office structure |
| IHTM01080 | Revised Office structure |
| IHTM01081 | Procedures for seeking advise from Technical Group |
| IHTM08058 | Revised instructions for moving instalment cases |
| IHTM08121 | Penalties - changes to referral criteria |
| IHTM08173 | Change of contact name |
| IHTM10270 | Compensation payments under the NHS Health Care scheme |
| IHTM14011 | Additional cross references added to clarify changing provisions on termination of a life interest during the tenants lifetime |
| IHTM20427 | Misleading example deleted |
| IHTM22022 | Spelling mistake corrected and public access, previously denied in error, now permitted |
| IHTM23242 | Revised targets for the Valuation Office Agency |
| IHTM24033 | Corrected spelling |
| IHTM25141 | Clarification of the availability of business relief on settled land etc. |
| IHTM25152 | Expanded definition of "Property consisting of a business" |
| IHTM25154 | Settled property/partnerships/Finch - further guidance |
| IHTM25242 | Amendment to show s.104(1)(e) applies to lifetime transfers only |
| IHTM25243 | Clarification of the scope of s.105(1)(e) |
| IHTM30171 | Increased threshold from 6 April 2005 |
| IHTM30352 | Interest rate change from 6 September 2005 |
| IHTM30551 | Revised procedure for notifying repayments made in error |
| IHTM31602 | Revised chart to reflect new Sect 6 procedure |
| IHTM31641 | Repayment form Sect 6 - hand written amendments no longer acceptable |
| IHTM31649 | Slight amendment to Sect 6 procedure |
| IHTM31700 | Slight amendment to Sect 6 procedure |
| IHTM32087 | Procedure for referring 4 year old cases |
| IHTM36023 | Penalties - FA 2004 changes |
| IHTM36082 | Penalties - FA 2004 changes |
| IHTM36091 | Penalties - FA 2004 changes |
| IHTM36092 | Penalties - FA 2004 changes |
| IHTM36103 | Penalties - FA 2004 changes |
| IHTM36104 | Penalties - FA 2004 changes |
| IHTM36171 | Penalties - misprint corrected |
| IHTM36174 | Penalties - FA 2004 changes |
| IHTM36176 | Penalties - amendment to culpable tax calculation (previously mathematically incorrect |
| IHTM36203 | Penalties - gravity amendment, missing range inserted |
| IHTM36403 | Penalties - amended Human Rights paragraph |
| IHTM39011 | Revised procedures for dealing with future claims on woodland |
| IHTM39016 | Revised procedures for dealing with future claims on woodland |
| IHTM39017 | Revised procedures for dealing with future claims on woodland |
| IHTM39018 | Revised procedures for dealing with future claims on woodland |
| IHTM39025 | Revised procedures for dealing with future claims on woodland |
| IHTM39048 | Revised instructions for closing files with instalments outstanding |
