SDC testing

increasing compliance and reducing risk for your umbrella company

Umbrella company contractors under Supervision, Direction or Control (SDC) can no longer claim tax relief on travel and subsistence expenses. However, liability for non-compliance – and resulting tax debt – rests with the umbrella company.

SDC Testing delivers innovative outsourced compliance solutions for umbrella companies that enable your contractors to claim expenses compliantly. Our unique SDC online test, coupled with tax investigation and liability insurance, protect your umbrella company and directors from back tax claims.

30 years of serving the UK’s contracting community

Developed by two of contracting’s best known brands – ContractorCalculator and Qdos – SDC Testing combines software development expertise with specialist knowledge of SDC and employment case law to provide you with a uniquely comprehensive, accurate and efficient SDC testing solution.

Keeping your contractors compliant


Changes to tax legislation mean contractors using umbrella companies can no longer legitimately claim tax relief on their travel and subsistence expenses if they are under the Supervision, Direction or Control (SDC) of their client. If contractors are caught claiming expenses and tax reliefs illegally, HMRC will target the umbrella company and its directors for income tax and National Insurance Contributions (NICs) liabilities.

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How SDC Testing works

1. Register

2. Testing

3. Process

4. Insure

(1) You sign-up to SDC Testing and order and pay for test credits. (2) You then bulk upload your contractors’ details, who are all invited to take the test and receive an SDC risk score. (3) You review the results and decide whether or not to allow expenses claims. (4) Then choose to insure any contractors against tax debt transfer liability

Why use SDC Testing?

Your business benefits from:


Greater compliance and reduced liability risk


Significantly reduced workload for your back office


Additional revenues from selling SDC tests and expenses processing fees


A competitive edge in the market from being able to continue to operate expenses for compliant contractors

Your contractors benefit from:


An assessment of their SDC status that may enable them to claim expenses


Greater certainty and peace of mind over their tax position


If eligible, relief worth potentially hundreds to thousands of pounds

How do I get started with SDC Testing?


With potentially thousands of contractors on your books, you’ll have little time to waste. Getting started with us couldn’t be any more straightforward.

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