Portfolio Career Consulting Contract UK | Multi-Role Consultant Agreement
Managing multiple client relationships simultaneously creates complex legal exposure that a standard single-client contract simply cannot address. A portfolio career consulting contract solves this by clearly defining the scope, boundaries, and obligations across concurrent engagements, preventing conflicts of interest and protecting intellectual property across each role. For UK consultants operating across several clients, IR35 status under Chapter 10 of the Income Tax (Earnings and Pensions) Act 2003 is a critical consideration, as each engagement must demonstrate genuine self-employment. Payment terms should align with the Late Payment of Commercial Debts Act 1998, ensuring enforceable recourse if any client defaults. A well-drafted agreement also clarifies confidentiality obligations so that sensitive information from one client is never inadvertently disclosed to another. Generate a tailored portfolio career consulting contract now to protect every engagement you hold.
Generate your Consulting Agreement free →Key clauses in a Consulting Agreement
Multi-Client Conflict of Interest
This clause defines how the consultant will identify, disclose, and manage potential conflicts arising from working with multiple clients simultaneously, including obligations to notify parties if a conflict emerges. It is essential in portfolio career arrangements because without it, a consultant could face breach of contract claims or fiduciary liability if one client's interests are compromised by work performed for another.
Intellectual Property Ownership
This clause specifies that intellectual property created during each discrete engagement belongs to the commissioning client for that project, while work created independently or for other clients remains separate. Under the Copyright, Designs and Patents Act 1988, IP created by a self-employed consultant does not automatically transfer to the client, making explicit assignment or licensing terms vital for every portfolio role.
IR35 Status and Substitution Rights
This clause establishes the genuine business-to-business nature of the arrangement, including a right of substitution and confirmation that the consultant operates outside the client's day-to-day control. HMRC's IR35 framework under Chapter 10 of the Income Tax (Earnings and Pensions) Act 2003 scrutinises these factors, and a properly drafted clause supports the consultant's off-payroll status across each concurrent engagement.
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Generate free →Frequently asked questions
Can I hold multiple consulting contracts simultaneously without breaching IR35 rules?
Yes, working across multiple clients can actually strengthen an IR35 off-payroll position because it demonstrates a genuine portfolio business rather than disguised employment with a single engager. HMRC's Check Employment Status for Tax tool assesses each engagement individually, so each contract must independently satisfy the key indicators of self-employment, including control, substitution, and mutuality of obligation. Ensuring each agreement is correctly drafted is essential to protecting your status across all engagements.
What happens if confidential information from one client is accidentally used in work for another?
Inadvertent disclosure of one client's confidential information to another could constitute a breach of contract and potentially a breach of confidence under common law, exposing the consultant to damages claims from the affected client. A robust confidentiality clause in each contract, clearly scoping what constitutes confidential information and imposing strict non-disclosure obligations, provides the clearest protection. Some portfolio consultants also maintain separate work environments and document management systems as a practical safeguard alongside contractual protections.
How should payment terms be structured when invoicing multiple clients on different schedules?
Each portfolio consulting contract should specify its own distinct payment terms, including invoice dates, payment periods, and late payment consequences, rather than relying on a single universal arrangement. Under the Late Payment of Commercial Debts Act 1998, statutory interest of 8% above the Bank of England base rate automatically applies to overdue B2B invoices, and you are entitled to claim reasonable debt recovery costs. Setting clear 30-day payment terms in each individual contract and referencing your statutory rights reinforces your position if any one client delays payment.
The information on this page is for general informational purposes only and does not constitute legal advice. Contracto generates AI-assisted contract templates — they are not a substitute for advice from a qualified solicitor. For high-value or complex engagements, always seek independent legal review.