| Agricultural buildings | Rate (%) | (straight-line basis)
Writing-down allowance | 3 | | Business premises renovation | | Initial allowance * | 100 | | Dredging | (straight-line basis)
Writing-down allowance
| 4 | | Flat conversions | | Initial allowance * | 100 | * Writing-down allowance for unrelieved expenditure (straight-line basis)
| 25 | | Industrial buildings | (straight-line basis)
Writing-down allowance | 3 |
* Expenditure on buildings (including commercial buildings) on sites in enterprise zones qualifies for initial allowance of 100% if contracted for within 10 years of inclusion of site in zone. | Know-how | Rate (%) | (reducing balance basis)
Writing-down allowance | 25 | | Mineral extraction | (reducing balance basis)
Writing-down allowance
General | 25 | | Acquisition of mineral asset | 10 | | Patent rights | (reducing balance basis)
Writing-down allowance
| 25 | | Plant and machinery | | (reducing balance basis) | | | Annual investment allowance (max £50,000) | 100 |
First-year allowances
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| | Energy saving or environmentally beneficial assets | 100 | | New low-emission cars | 100 | | Writing-down allowances |
| | General | 20 | | Integral features and thermal insulation | 10 | | Long-life assets | 10 | | Research and development | | Allowance | 100 |
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Barrys Accountants Limited
