Company Power of Attorney: What UK Businesses Need to Know

If you run a limited company, there will be times when a director can’t sign a contract, a deal needs to complete overseas, or a bank needs a named person to act on the company’s behalf. That’s where a company power of attorney comes in.

In this guide, we’ll explain what a company power of attorney actually is (and isn’t), when it makes sense to use one, how to put it in place properly under UK law, and the safeguards you should have around it so you stay protected from day one.

What Is A Company Power Of Attorney?

A company power of attorney (sometimes called a “corporate power of attorney”) is a deed by which a company authorises a person (the “attorney”) to act and sign documents on its behalf for defined purposes.

It’s different from the personal “lasting power of attorney” you may have heard of. LPAs are for individuals and are registered with the Office of the Public Guardian. Companies don’t become incapacitated in the same way, so they use a simple corporate instrument instead - a power of attorney granted by the company itself.

Under UK law, a company may authorise a person to act and sign for it. In practice:

• The document should be created as a deed (Companies Act 2006 and common law requirements for deeds apply).
• The board passes a resolution approving the grant and the scope of authority.
• The company executes the power of attorney as a deed and then the attorney can sign documents on the company’s behalf within the limits set.

Think of it as formal, written Signing Authority with clear boundaries, accountability and legal effect.

When Should A Company Use One?

You don’t need a company power of attorney for day-to-day trading where directors or authorised signatories can sign. But in certain situations it’s efficient, or even required by counterparties, to have one in place.

Common scenarios include:

• Property and banking transactions: Lenders and HM Land Registry often require formal authority for signatories at completion, especially if a director can’t attend to sign deeds on the day.
• Cross-border deals: Where a local agent or employee needs authority to sign on your company’s behalf in another jurisdiction or time zone.
• High-volume, repeat signings: For example, a general counsel or COO executing a series of routine contracts (within a monetary or subject-matter cap).
• Group company arrangements: Empowering a parent company officer or shared services lead to sign for subsidiaries within clearly defined limits.
• Emergency continuity: Ensuring someone can sign critical documents if directors are unavailable, without scrambling for ad-hoc approvals.

It’s also a way to reduce the risk of overstepping informal authority. Without a clear instrument, you might rely on an employee’s apparent authority, which can be risky and fact-specific. For context, see how an employee’s capacity to bind a company works in everyday contracts.

How To Put A Company Power Of Attorney In Place (Step-By-Step)

Setting this up correctly is straightforward if you follow a clear process. Here’s a practical approach we use with SMEs.

1) Decide What You Need The Attorney To Do

Start by defining the business need. Is it for one transaction (e.g. completing a property purchase), a type of transaction (e.g. contracts up to £50,000), or a wider operational role (e.g. sign all routine supplier agreements for 12 months)? Clarity here drives the scope, limits and duration of the power.

2) Check Your Articles And Existing Policies

Make sure your Articles of Association and any existing delegated authority policy don’t restrict what you plan to do. If the Articles are outdated or unclear, consider updating them and documenting internal signing limits alongside the power of attorney.

3) Approve It By Board Resolution

The board should formally approve granting the power, naming the attorney(s), the scope, limits, duration and any reporting requirements. Document the decision clearly - you can use a Directors’ Resolution Template to record the authority and the board’s decision-making trail.

4) Draft The Power Of Attorney As A Deed

This is crucial. A corporate power of attorney should be a deed (not a simple contract) to ensure validity and acceptance by banks, counterparties and registries. If you’re unsure why the format matters, it’s worth brushing up on Deed vs Agreement and when each is required.

5) Execute The Deed Properly

Companies must follow the correct formalities when executing deeds in England and Wales. That usually means two authorised signatories or one director in the presence of a witness. If you need a refresher on the rules and practicalities, see Executing Contracts and Deeds. Electronic signing can be used, but witnessing still has specific requirements (more on this below).

6) Communicate And Store

Issue certified copies to relevant banks, lawyers and regular counterparties. Keep a central register of current powers of attorney, including copies, expiry dates and any caps/limits. Communicate internally so staff know when to route signatures to the attorney versus the directors.

7) Monitor And Renew

Build in periodic reviews. Short, fixed terms reduce risk of “authority creep” and ensure you re-check the scope as your business evolves. We usually recommend diarising a review 1–3 months before expiry.

Execution, Signing And Proving Authority

For your company power of attorney to be relied on by third parties, you’ll need to get the execution and evidence right.

Execution Formalities (England & Wales)

To avoid delays or re-signing, make sure the deed:

• Clearly states it’s executed as a deed by the company and identifies the attorney(s).
• Includes an operative clause granting the authority and any limits, caps, or reporting duties.
• Is properly executed by the company in accordance with Companies Act 2006 requirements.
• Is dated and “delivered” (delivery is a legal concept; your lawyer will ensure this is covered in the wording).

If you’re using e-signatures, the deed can usually be signed electronically by the company and the witness, provided the witness is physically present to observe the signatory at the time of signing. The law is evolving, but in-person witnessing is still required in most cases. See our guide on Electronic Witnessing for what is and isn’t allowed.

Who Can Be The Attorney?

It can be a director, a senior employee, a lawyer or an agent. Choose someone trustworthy and competent for the role you need. You can appoint more than one attorney (jointly or jointly and severally) - joint appointments require them all to act together, which adds control but can slow things down; “joint and several” allows any one of them to act alone, which is faster but needs tighter limits.

Proving The Authority To Third Parties

Counterparties will usually ask for a certified copy of the power of attorney and the board resolution that approved it. For one-off matters, you might supplement this with a short Authority to Act form addressed to the specific counterparty, attaching the deed. If you’re dealing with land, HM Land Registry has its own requirements for lodging or producing a copy of the power of attorney.

For everyday contracts, remember that without a formal instrument you might rely on apparent authority - which is riskier. Clarifying and documenting authority up front reduces disputes over whether someone had authority to sign in the first place. If you’re ever in doubt on the basics, our explainer on Signing Authority covers the key concepts.

Controls, Risks And Best Practice

Handing signing power to someone else is powerful - and risky if you don’t set the parameters. The good news is you can build in simple, effective controls to protect the business.

Get The Scope Right (And Write It Down Clearly)

Vague authority causes headaches. Your power of attorney should be crystal clear about:

• Scope: Which documents or types of transactions can the attorney sign?
• Financial caps: Maximum contract value or limits on guarantees, indemnities or security.
• Time period: A clear start and end date (or an event that ends the authority).
• Sub-delegation: Whether the attorney may appoint a substitute (usually “no” unless tightly controlled).
• Reporting: What they must report back to the board (e.g. monthly summary of documents signed).

Use Dual Controls For Higher-Risk Documents

For guarantees, charges, share transfers or any document that could create major liability, consider requiring the attorney to obtain a countersignature from a director or the CEO. You can write this into the power itself.

Align With Your Signing Policy And Articles

Your power of attorney should sit comfortably alongside your internal signing policy and Articles. If your Articles restrict the board’s ability to delegate, take advice before proceeding. As a refresher on the formalities and options, see Executing Contracts and Deeds and our overview of Deed vs Agreement scenarios.

Keep A Register Of Authorities

Maintain a live register of all current and expired powers of attorney (and other delegations), with copies, expiry dates, caps and attorney details. This prevents long-forgotten authorities lingering in the background and reduces fraud risk.

Train Your Team

Make sure your sales, finance and legal/admin teams know who can sign what, and how to check if a person has authority. If someone presses for “just an email confirmation” of authority, proceed carefully - email alone can create or evidence contracts in certain cases, but it isn’t a substitute for a formal power of attorney. As context, here’s how emails interact with contracts in practice: are emails legally binding.

Think About Irrevocable Powers For Security

In financing deals, you might come across irrevocable powers of attorney given “by way of security.” These are specialist instruments which, under the Powers of Attorney Act 1971, can be made irrevocable while the secured obligations remain outstanding. Get tailored advice before granting or accepting one, as they carry significant implications.

Revocation And Emergencies

If you discover misuse, act fast. You can revoke a revocable power of attorney by deed and by giving prompt notice to counterparties (banks, key suppliers, registries and advisers). Retrieve or cancel any certified copies, update your authority register, and alert staff. For critical matters, replacing the attorney immediately with a fresh deed (with tighter limits) is often the safest route.

What If A Counterparty Questions Authority?

Offer a certified copy of the power and the board resolution. If needed, accompany it with a short “authority confirmation” letter on your letterhead. Where the deal involves a deed, counterparties sometimes ask about witnessing or electronic signatures - in which case you can point to your execution pages and, if needed, share our guidance on Electronic Witnessing to reassure them on the process you followed.

Helpful Documents And Templates

Two practical documents that often sit alongside a company power of attorney are:

• A board resolution authorising the grant (see Directors’ Resolution Template).
• An internal signing matrix or policy clarifying who can sign what, and when to use the attorney, to avoid relying on a person’s informal capacity to bind a company.

Revoking Or Updating A Company Power Of Attorney

Don’t set and forget. Your business will change - so should your delegations.

• When to revoke: If the attorney leaves, changes role, or the business need has ended, revoke promptly. For ordinary corporate powers, you do this by a revocation deed and by notifying anyone who relies on it (banks, counterparties, advisers, registries).
• When to update: If you need a wider scope or increased caps, create a replacement deed with a clean set of terms and an updated expiry date. Avoid chaining multiple variations over time; it’s clearer for third parties to rely on a single, up-to-date instrument.
• Who to notify: Circulate the revocation (or replacement) to your bank contact, regular suppliers, your property lawyers (if you work with Land Registry filings), and internal stakeholders.
• Record-keeping: File the revocation in your authority register and archive the retired power so there’s no confusion later.

Note: where an irrevocable power has been granted by way of security in a finance context, revocation will be governed by the terms of that instrument and the underlying facility - take lender consent-based advice before acting.

Key Takeaways

• A company power of attorney is a deed that lets a named person sign documents and act for your company within a defined scope - it’s not the same as a personal lasting power of attorney.
• Use one for property and banking transactions, cross-border signings, or high-volume routine contracts when directors can’t practically sign everything.
• Set it up properly: board approval, a well-drafted deed, correct execution and a clear communication plan for counterparties and staff.
• Control the risk with tight scope, caps, time limits, reporting duties and (for riskier documents) dual controls or countersignatures.
• Execution formalities matter. Deeds must be signed correctly, and while e-signatures are widely accepted, witnessing requirements still apply - see our guidance on Executing Contracts and Deeds and Electronic Witnessing.
• Keep a live register of your delegations, review them regularly, and revoke or replace powers quickly if roles or needs change.
• When in doubt about authority, rely on clear, documented instruments rather than assumptions about someone’s capacity to bind a company.

If you’d like help drafting a robust company power of attorney, aligning it with your Articles and signing policy, or setting up a simple register and process, we’re here to help. You can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.