No, I don't think reimbursement of travel expenses would be taxable. The HM Revenue & Customs guidance states that payments for loss of earnings are taxable but this isn't the case for payments that don't 'fill a hole in the profits' of the trade. The guidance gives a daily subsistence allowance as an example of a non taxable receipt.
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Pearce & Co - Chartered Accountant and Chartered Tax Adviser
Thank you muchly. I know it's a duty and all that but since I didn't get any income for 2 weeks because of jury service, I wasn't much looking forward to paying tax on the travel reimbursement.