Hmrc business expenses manual

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Self-employed - running a business and paying tax office in the on-line Business Income Manual at hmrc.gov.uk/manuals/bimmanual/BIM47800.htm. The Business Income Manual — BIM47130 (opens in new browser) provides guidance on matters not dealt with in this toolkit. The Research and Development Expenditure Credit gov.uk/hmrc-internal-manuals/corporate-intangibles- 11% of qualifying R&D expenditure.The general rule is that costs you pay with the sole purpose of earning business profits are allowable expenses. Please note that you can't deduct costs: • for