HMRC's Side Hustle Crackdown 2026: DAC7 Rules and What They Mean for You

What is DAC7 and why does it affect UK sellers?

DAC7 is an EU Council Directive (2021/514) on administrative cooperation in tax matters. In essence, it requires digital platforms — marketplaces, gig economy apps, rental platforms — to collect, verify and report information about the income earned by their sellers and service providers.

While the UK left the EU, HMRC adopted equivalent reporting requirements as part of UK domestic legislation. The Reporting Platform Regulations came into force in the UK from 1 January 2024, meaning platforms were required to report 2023 calendar-year data to HMRC by 31 January 2024, and 2024 data by 31 January 2025.

HMRC now receives structured annual data feeds from dozens of platforms. This is not a future possibility or a pilot scheme — it is operational, and HMRC is already using the data to identify potential non-compliance.

Which platforms report to HMRC?

Under the UK's platform reporting rules, any digital platform that facilitates the sale of goods, provision of services, rental of property, or rental of transport by "sellers" is covered. Confirmed platforms reporting UK seller data include:

What data does HMRC receive?

• Your full name and address
• National Insurance number (platforms request this during onboarding)
• Total gross income paid to you by the platform during the year
• Transaction count
• Platform fees charged to you
• Bank account details you've registered with the platform

This is comprehensive enough that HMRC can identify the income, match it to your tax record, and automatically flag non-compliance without any additional investigation.

The Trading Allowance: your first line of protection

The Trading Allowance (introduced in 2017/18) provides a £1,000 annual exemption for trading or miscellaneous income. If your total gross income from self-employment, platform work or casual sales is £1,000 or less, you:

• Pay no Income Tax on it
• Have no obligation to register for Self Assessment
• Do not need to declare it to HMRC

Key points:

• The £1,000 is gross income (not profit) — expenses are not deducted first
• You cannot claim both the Trading Allowance and business expenses — it's one or the other
• It applies per person, per tax year
• It is separate from the Property Income Allowance (also £1,000) for rental income

When expenses exceed the Trading Allowance: if your actual business expenses exceed £1,000, you're better off claiming actual expenses (deducting them from gross income) rather than using the flat Trading Allowance. For example, an Etsy seller with £3,000 income and £1,500 of materials costs has a profit of £1,500 — better to use actual expenses than the £1,000 allowance.

What happens at each income level

Under £1,000 gross (Trading Allowance)

Action required: none.

eBay seller "Sophie" sells her old clothes and household items. Total receipts: £800.

• This is personal possessions (not a trade) — not taxable regardless of Trading Allowance
• If it were a trade (e.g., buying to resell), still under £1,000 Trading Allowance — no declaration needed
• Even though HMRC receives this data from eBay, the platform data for under-£1k sellers is used for risk assessment only, not enforcement action

£1,000 – £12,570 gross (above Trading Allowance, below tax threshold)

Action required: register for Self Assessment, but tax bill may be nil or low.

"Tom" earns £4,000 gross from Fiverr doing logo design. He works full-time earning £28,000 PAYE.

• He must register for Self Assessment
• Profit: £4,000 − Trading Allowance £1,000 = £3,000 (or actual expenses if higher)
• If using Trading Allowance: taxable profit = £3,000
• Tom's total income = £28,000 + £3,000 = £31,000 — basic rate taxpayer
• Tax on £3,000 at 20% = £600. NI (Class 4) on profit above £12,570... but Tom's profit is only £3,000 — below the Class 4 threshold
• Class 2 NI: flat rate £3.45/week (if self-employment is your main business) — but HMRC treats this as a second trade/supplement; liability depends on individual circumstances
• Total: approximately £600 in extra tax

Over £12,570 gross (approaching or above tax threshold)

Action required: Self Assessment, full tax and NI calculation.

"Leila" earns £15,000 gross as a TaskRabbit cleaner and handywoman. She has no other income.

• Gross income: £15,000
• Less actual expenses (cleaning supplies, tools, transport): £2,500
• Profit: £12,500
• Below Personal Allowance (£12,570) — Income Tax: £0
• Class 4 NI: no (profit below £12,570 threshold)
• Class 2 NI: £3.45/week × 52 = £179.40 (if registered as self-employed)
• Self Assessment required regardless, as her trading income is above £1,000

Note: Leila would benefit from registering voluntarily for Class 2 NI contributions even if not required — they count towards State Pension and certain benefits.

Worked examples with real numbers

Example 1: eBay seller — personal items (no tax)

Julia sold £3,200 of second-hand clothing, books and kitchenware from her house move on eBay. She did not buy any of these items to resell — they are personal possessions.

Tax position: personal possessions sold at a loss or below original purchase price are not subject to income tax or CGT. No Self Assessment required. HMRC receives this data but has no basis for assessment.

Example 2: Airbnb host — spare room (Rent a Room Scheme)

Marcus rents his spare room via Airbnb when he's not using it. Annual income: £4,200.

Tax position: the Rent a Room Scheme exempts up to £7,500/year of income from letting furnished rooms in your own home. Marcus's £4,200 is fully exempt. No Self Assessment required. Even though Airbnb reports his income to HMRC, it is exempt income.

Example 3: Airbnb host — separate property (taxable)

Priya owns a second flat she lets via Airbnb. Annual gross rental income: £9,500. Allowable expenses (mortgage interest limited by Section 24, management fees, insurance, maintenance): £4,200.

Tax position:

• Gross income: £9,500
• Less expenses: £4,200
• Profit: £5,300
• Priya also earns £35,000 PAYE — higher-rate taxpayer (total income £40,300)
• Tax on rental profit at 20% (basic rate, as she's only just over the basic-rate band): £1,060
• Plus Section 24 adjustment (20% tax credit on mortgage interest)
• Self Assessment required. HMRC has the Airbnb income data.

Example 4: Fiverr freelancer (must register)

David earns £8,000 gross on Fiverr doing copywriting. He has no other income.

• Less Trading Allowance (no actual expenses to speak of): £1,000
• Taxable profit: £7,000
• Below Personal Allowance: Income Tax = £0
• Class 2 NI: ~£179/year
• Class 4 NI: below £12,570 threshold = £0
• Still must file Self Assessment. HMRC has the Fiverr data.
• Cost of not filing: automatic £100 penalty, escalating to £1,600+ after 12 months

HMRC's historic data — how far back can they look?

HMRC's powers to open enquiries depend on the nature of the omission:

The first DAC7 data HMRC received covered 2023 — so HMRC is now looking at returns filed for 2022/23, 2023/24, and 2024/25. For most sellers who genuinely didn't know they needed to declare income, the "careless" category applies — six years back, meaning 2019/20 onwards is potentially in scope.

Voluntary disclosure: lower penalties, less stress

If you believe you have undeclared income that HMRC may identify through platform data, making a voluntary disclosure now — before HMRC contacts you — substantially reduces the risk:

• Prompted disclosure (after HMRC contacts you): penalties typically 15–30% of unpaid tax
• Unprompted disclosure (before HMRC contacts you): penalties as low as 0–10% for non-deliberate errors

How to make a voluntary disclosure:

1. Use HMRC's online disclosure service: gov.uk/government/collections/hmrc-online-services-for-individuals
2. Or call HMRC's Self Assessment helpline (0300 200 3310) and explain you need to make a disclosure
3. File late returns for any missed years (the online system allows going back four to six years)
4. Pay the outstanding tax, NI, and any interest due

HMRC's campaign literature emphasises that they treat honest mistakes differently from deliberate evasion. Most platform sellers who didn't know about DAC7 or the Trading Allowance rules will face interest on late payment and possibly a modest penalty — not criminal prosecution.

Sources

• HMRC: Platform Operators: reporting and due diligence rules
• HMRC: Trading Allowance
• HMRC: Renting out your property
• HMRC: Rent a Room Scheme
• EU Council: Directive 2021/514 (DAC7)
• HMRC: Making a disclosure — tax owed