Overview of the Change.
Inland Revenue has added a new key point to the IR10 for the 2026 tax year:
KP60 Total value of Investment Boost asset(s) being claimed.
This field must be completed by any business that has claimed the Investment Boost deduction.
Investment Boost.
Investment Boost is a form of accelerated depreciation.
Under this scheme:
A business can claim 20% of the asset’s cost upfront as a deduction.
The remaining 80% of the cost is depreciated using standard depreciation rules.
The total depreciation claimed over the life of the asset does not change — the timing of the deduction is simply shifted to allow a larger claim in the first year.
Completing the KP60 Field.
Enter the total value of all assets the business claimed Investment Boost for during the tax year.
Important Notes:
• This is the total value (cost) of the assets not the 20% deduction amount itself.
• Do not include amounts relating to private use, KP60 should only contain the business use value of the assets.
Depreciation fields still required.
KP60 is an additional reporting field and does not replace the standard depreciation entries.
Any Investment Boost claimed must still be recorded in the appropriate depreciation fields on the IR10, as per normal reporting requirements.
Where to Find KP60 in the IR10
KP60 is located at the bottom of the fixed assets section on the IR10, directly beneath field 59 (Tax‑deductible loss on disposal of fixed assets).
Tax agents
When completing the IR10 on behalf of a client who has claimed Investment Boost:
• Confirm which assets the client acquired or finished constructing on or after 22 May 2025.
• Confirm the total cost of those assets (excluding any private-use portion).
• Enter that total in KP60.
• Ensure the Investment Boost amount is also included in the depreciation fields.