A country-by-country index for side hustle and freelance tax in 2026. UK, US, Canada, Australia, Ireland, Singapore, New Zealand and Hong Kong: thresholds, deadlines, pitfalls, and the one setup step that prevents surprises.

TL;DR

Side hustle tax has no universal threshold. The UK has a £1,000 trading allowance, the US triggers self-employment tax above $400 of net earnings, Canada and New Zealand expect reporting from dollar one, Australia expects an ABN early, and Hong Kong / Singapore use territorial-style logic that still taxes many “foreign client” situations. If you only do one thing: separate your side-hustle bank inflows, track expenses monthly, and check the country threshold before you quote a rate.

Why we wrote this

Most “side hustle tax” articles make the same mistake: they assume one country’s rules apply everywhere. Hustle Report is global (UK, US, Canada, Australia, Ireland) and we now ship deep tax guides for Singapore, New Zealand and Hong Kong too. This is the hub that points you to the correct country page.

If you want the practical version: read your country page, then use the rate floor calculator in /rates to set a number that still clears your take-home after tax.

The one setup that prevents tax surprises

No matter where you live, three moves are universal:

Use a separate account for side income. Personal + side income mixed together is where 90% of “I can’t prove anything” problems come from.
Track expenses monthly. You pay tax on profit, not revenue — but only if you can evidence expenses.
Calendar the deadlines now. Filing dates are predictable; penalties happen when you treat them like a surprise.

Side hustle tax by country (2026 index)

United Kingdom (HMRC)

Go to: /freelance-tax/uk
Key threshold: £1,000 gross side income per tax year (Trading Allowance)
Key deadline: register by 5 October (after the tax year), file + pay by 31 January

Read the full guide: Side hustle tax in the UK (2026)

United States (IRS)

Go to: /freelance-tax/us
Key threshold: $400 net self-employment earnings (Schedule SE trigger)
Key deadline: quarterly estimates (15 Apr, 15 Jun, 15 Sep, 15 Jan) once you owe (>) $1,000

Read the full guide: Side hustle tax in the US (1099 / Schedule C)

Canada (CRA)

Go to: /freelance-tax/canada
Key rule: income reporting from dollar one (T2125)
Key threshold: GST/HST registration becomes mandatory above C$30,000 rolling 12-month revenue

Read the full guide: Side hustle tax in Canada (T2125 + GST/HST)

Australia (ATO)

Go to: /freelance-tax/australia
Key rule: get an ABN early (otherwise 47% withholding risk)
Key threshold: GST registration becomes mandatory above A$75,000 rolling 12-month turnover

Read the full guide: Side hustle tax in Australia (ABN + GST)

Ireland (Revenue)

Go to: /freelance-tax/ireland
Key threshold: Form 11 generally above €5,000 net non-PAYE income (or €30,000 gross)
Key deadline: pay-and-file by 31 October (ROS extension to mid-November)

Read the full guide: Side hustle tax in Ireland (Form 11)

Singapore (IRAS)

Go to: /freelance-tax/singapore
Key rule: trade income reportable from S$1
Key threshold: GST only becomes mandatory above S$1,000,000 turnover

Read the full guide: Side hustle tax in Singapore (IRAS)

New Zealand (IRD)

Go to: /freelance-tax/new-zealand
Key rule: income reportable from dollar one (IR3)
Key threshold: GST becomes mandatory above NZ$60,000 rolling 12-month revenue

Read the full guide: Side hustle tax in New Zealand (IRD)

Hong Kong (IRD)

Go to: /freelance-tax/hong-kong
Key rule: Business Registration Certificate within one month of starting trade
Key rates: Profits Tax (two-tier) 7.5% / 15% for unincorporated businesses

Read the full guide: Side hustle tax in Hong Kong (Profits Tax)

What to do next (in order)

Pick your country page and write down the threshold + deadlines.
Decide whether you need to register (and when).
Set your rate floor with /rates so your post-tax take-home still hits your target.
If you’re choosing between a remote job switch vs a side hustle, use this framework: Remote job or side hustle: which one to chase in 2026

Side hustle tax by country (2026): thresholds, deadlines and what to do first