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Updated for 2026/27 Tax Year

UK Tax for the Self-Made, Made Simple.

Simple, jargon-free tax guidance and tools for UK freelancers, side hustlers, online sellers and first-time filers.

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Updated for 2026/27 tax year Plain English guides Free calculators Made for side hustlers & freelancers

Choose your hustle. We'll show you the rules.

Tax isn't one-size-fits-all. Pick your primary income source to find exact deductions, deadlines, and HMRC requirements.

Online Sellers

Vinted, Etsy, eBay & Depop. Decode the new reporting rules.

Read Seller Hub

Creators

OnlyFans, YouTube, TikTok. Camera gear and sponsorships.

Read Creator Hub

Freelancers

Sole Trader vs Ltd. Track working-from-home expenses.

Read Freelance Hub

Side Hustlers

Working full-time PAYE? See how your side income affects you.

Read Hustle Hub

Never filed before? Start here.

Filing your first tax return feels intimidating. We've broken down the entire HMRC process into four simple, unmistakable steps.

Read the First-Timer Guide
1

Do I need to register?

Take our 60-second test to find out if HMRC even cares about your income.

2

Understand the £1,000 rule

Before you do anything, ensure you aren't under the Trading Allowance.

3

Register with HMRC

A plain-English guide to getting your UTR number without mistakes.

4

Work out what you owe

Use our calculators to legally claim all valid expenses and save money.

Do the math in seconds.

No spreadsheet required. Our free calculators instantly show what you owe, what you can claim, and what you keep.

Sole Trader Tax Calculator

See exactly how much you can keep after Income Tax and National Insurance.

Calculate Take-Home

Mileage Calculator

Instantly calculate your 45p/25p rates for Uber, Deliveroo and business travel.

Calculate Expenses

Trading Allowance Checker

Find out instantly if you even need to declare your side income to HMRC this year.

Check My Allowance

HMRC is confusing. You aren't.

You built a business, secured clients, and made a profit. You shouldn't need an accounting degree just to tell the government about it. TaxWiz replaces the jargon with confidence.

Tricky situation? We've got a guide for that.

In-depth breakdowns for the questions keeping you up at night.

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Selling Hub

Do You Actually Pay Tax on Vinted Sales?

Decoding the 2024 HMRC side hustle reporting rules.

Gig Economy

How Does a Side Hustle Affect Your PAYE Tax Code?

How to manage your tax code when working full-time.

Creator Hub

OnlyFans Tax UK: The Complete Anonymous Filing Guide

Anonymous filing, deductible lingerie, and setup.

Freelancer Hub

Sole Trader vs Limited Company: When to Switch

When does it actually make financial sense to switch?

Automate the boring stuff.

We've reviewed the top UK accounting platforms so you don't waste money on software built for massive corporations.

TaxWiz Top Pick

FreeAgent

The Freelancer Favorite

£0 - £30/month

Pros

  • • Free with NatWest bank
  • • Incredibly easy UI
  • • Direct HMRC filing

Cons

  • • Inventory tracking is basic

Best for: IT Contractors, Solo Freelancers & Creatives

Read Review

Xero

The Scalable Powerhouse

£15+/month

Pros

  • • Accountants love it
  • • Massive app ecosystem
  • • Great for multiple currencies

Cons

  • • Steeper learning curve
  • • Overkill for beginners

Best for: Growing Etsy Stores & Agencies

Read Review
View all software rankings

Common Tax Questions

Yes, if you earn over £1,000 from a side hustle, freelance work, or selling goods for profit, you must declare it to HMRC—even if you already pay tax through PAYE at your day job. You will only pay additional tax on the side hustle income.
It's a tax exemption for individuals making small amounts of money. If your total gross income (before expenses) from side hustles is under £1,000 in a tax year, you usually don't need to declare it or pay tax on it.
For online Self Assessment returns, the deadline is midnight on 31st January following the end of the tax year. You must also pay any tax owed by this date.
If you are just selling your own old, second-hand clothes at a loss (cleaning out your closet), you do not owe tax. If you are specifically buying/making clothes with the intention of selling them for a profit, then you are a 'trader' and must declare income over £1,000.

Ready to decode your tax bill?

Stop guessing. Take our free quiz to find out exactly what HMRC needs from you this year.

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