Side-Hustlers and Small Firms Hit by New Tax Crackdown

HMRC to grab cash at source from 2029

Britain’s side‑hustlers, freelancers and smallest firms are bracing for a major tax shake‑up as HMRC prepares to take tax straight out of their earnings from 2029; before the money even hits their bank accounts.

Under new rules, anyone earning extra cash from a second job, gig work, online selling, tutoring, crafting, or any other side hustle will face mandatory tax deductions through payroll. No more waiting until the end of the year or smoothing cash flow. HMRC will take its cut upfront.

It’s not just side‑hustlers getting squeezed. From next year, benefits in kind, company cars, vans, fuel allowances, medical cover, gym memberships and other perks, will also be taxed through payroll, not at the end of the tax year.

Big firms already do this. Now HMRC says small and micro businesses must do so too, whether they’re ready or not.

WHAT THIS MEANS FOR SMALL BUSINESSES

Small firms say this is yet another blow at the worst possible time.

1. Cash flow chaos

Side‑hustlers and micro‑business owners rely on flexible income. Now tax will be taken before they even see the money, making it harder to:

• pay suppliers

• cover rent

• manage seasonal dips

• build reserves

• manage cashflow

2. More admin for small firms

Small employers will have to:

• update payroll systems

• track benefits

• calculate deductions

• report everything in real time

For a one‑person or three‑person business, this is a massive burden.

3. No more end‑of‑year breathing space

Under the old system, small firms could:

• plan

• save

• smooth income

• pay tax once they knew their real profits

From 2029, HMRC takes the money upfront, even if the business later makes a loss.

4. Side‑hustlers lose flexibility

Millions of people rely on side gigs to:

• pay bills

• cover childcare

• survive rising costs

Now their earnings will be taxed instantly, reducing the financial cushion many families depend on.

BENEFITS IN KIND

Company cars, vans, medical cover and other perks will soon be taxed through payroll, not via annual P11D forms.

Large firms already do this. But small businesses, which often don’t have HR teams or payroll specialists, say they’re being forced into big‑company systems they can’t afford.

THE REAL PROBLEM

At the heart of the issue is the shift of responsibility from HMRC to small business.

HMRC wants real‑time data, tax and reporting

But instead of building the systems itself, it is pushing the burden onto Britain’s smallest firms, which are already grappling with the impact of:

• rising costs

• late payments

• energy shocks

• people shortages

• compliance overload and admin

WHAT SMALL FIRMS CAN DO NOW

1. Check payroll software

Many micro‑firms will need upgrades or entirely new systems.

2. Review benefits packages

Company cars and medical cover may become too costly to offer.

3. Prepare side‑hustle staff

Workers with second jobs will see lower take‑home pay.

4. Push for transitional support

Small business groups are already calling for:

• grants

• simplified reporting

• phased implementation

• exemptions for micro‑employers

HMRC’s new rules mean side‑hustlers will be taxed at source, and small businesses will be forced to run big‑company payroll systems, whether they can afford them or not.

For Britain’s smallest firms, already fighting to survive, this is yet another hit to cash flow, flexibility and resilience. How many have to go to the wall before the government understands what it takes to run a small business and how crucially important they are to the UK economy, wider society and communities.