From the details you have given, it sounds as if your capital expenditure will be eligible for the Annual Investment Allowance (AIA). This means that subject to the AIA in operation during your year end, you may get up to 100% tax relief in the year of purchase on qualifying assets.
However, in your circumstances it may be beneficial not to claim your full AIA entitlement this year. Instead, you could opt to restrict your AIA claim, and claim allowances against the surplus in the following year.
This way, you can manipulate your loss and AIA claim in such a way that you utilise them against your income being taxed at the higher rates.
Starting out in business can be daunting, so feel free to meet with your local TaxAssist Accountant to talk this through.