What is SDV and Why It Matters?
SDV stands for Supervision, Direction or Control — and if any one of those applies to you on site, HMRC may consider you an employee for tax purposes. That means you could lose the right to claim travel, food, tools, and other tax-free expenses. If SDV doesn’t apply, you may be entitled to claim thousands back.


What Happens If You Get It Wrong?
- Missed travel and meal claims
- Unexpected tax bills
- Held-up payments or status disputes
- Lost access to gross payment status
What Happens If You Get It Right?
- Claim mileage, tools, food and more
- Stay fully compliant
- Maximise your take-home pay
- Avoid tax trouble and audits
How Bishop Oak Helps?
We work with subcontractors across the UK to:
- Check your SDV status properly
- File your CIS and taxes the right way
- Help you claim everything you’re entitled to
- Handle HMRC, so you don’t have to
