You maybe renting a chair/space, if this is you then the money you pay to rent that space would be considered an allowable business expense as would any stock you purchase.
You maybe being paid a percentage of monies taken by the business for the jobs you undertake. This would be classed as your Self-Employed income, it maybe that all other expenses are paid by the owner of the business and so you would not claim these as business expenses.
Check the methods of paying your tax bill , including the budget payment plan where you can pay via instalments.
Actions if you are an employee
Your employer will deduct any tax and national insurance due via the PAYE system and pay this to HRMC on your behalf.
You may be able to claim tax relief on the cost of repairing or replacing tools you need to do your job e.g. scissors or cleaning of a uniform.
When your business must start doing this - called a 'staging date' - depends on how many people you have on your payroll. If you don't already offer your workers a workplace pension scheme, you must set one up before your staging date. Use the Pension Regulator's Duties Checker to find out what you need to do and when you need to do it
Employee rights are outlined in the employee contract your employers are entitled to certain employment rights including: