Freelancing in the UK: a beginner's guide to self-employment

Save Your MoneySide Hustles

Freelancing offers freedom and unlimited earning potential — but means managing your own tax and finding clients. Whether it's a side hustle or full-time career, here's what you need to know.

Setting Up as a Freelancer

Getting started is straightforward.
  • Register as self-employed with HMRC within 3 months
  • Set up a separate bank account for business income
  • Keep records of ALL income and expenses
  • Self Assessment deadline: 31 January (online)
  • Consider professional indemnity insurance

Understanding Freelancer Tax

You pay Income Tax and NI on profits (income minus expenses). Same £12,570 Personal Allowance. Set aside 25-30% of every invoice for tax — never spend your tax money.

Finding Your First Clients

Tell your network, create profiles on Upwork/Fiverr/PeoplePerHour, offer competitive rates for testimonials, and cold-email 10 potential clients per week.

Managing Irregular Income

Pay yourself a fixed monthly 'salary' from your business account. Aim for 3-6 months expenses in reserve (larger emergency fund than employees need). The zero-based budget works well for variable income.

Frequently Asked Questions

Do I need an accountant?
Not legally, but a good accountant costs £200-500/year and typically saves more than they charge.
Can I freelance while employed?
Usually yes — check your contract for restrictive covenants. Register with HMRC for any freelance income over £1,000/year.
What expenses can I claim?
Anything 'wholly and exclusively' for business: equipment, software, phone bills (business portion), travel, training, and home office costs.
  • freelancing
  • self-employment
  • UK tax
  • HMRC
  • side hustle
  • freelance income