Agency By Ratification: Australian Business Guide

In day-to-day business, people often act for someone else - placing orders, negotiating deals or signing on the dotted line. Most of the time, that happens with clear authority. But sometimes a person goes ahead without permission, and you’re left deciding whether to accept the deal after the fact. That’s where agency by ratification comes in.

Handled well, ratification can tidy up mistakes and keep momentum on a good opportunity. Handled poorly, it can expose you to unexpected liability. In this guide, we’ll explain what ratification is, when it legally works in Australia, how to manage it in practice, and what documents help you avoid problems in the first place.

Our goal is to give you a practical, plain-English overview so you can make confident calls and protect your business relationships.

What Is Agency By Ratification?

Agency by ratification is when a principal approves and adopts an act that someone else (the “agent”) did on the principal’s behalf, but without authority at the time. If ratification is valid, the approval “relates back” to the date of the original act - as if the agent had been properly authorised from the start.

In simple terms: “I didn’t authorise it then, but I’m choosing to stand behind it now.”

For example, imagine a team member signs a supply agreement outside their authority. If you later confirm to the supplier that your business will honour the deal, you’ve ratified the act and your company becomes bound by that contract.

Ratification sits within the wider law of agency, which governs how principals, agents and third parties interact. Understanding those foundations makes it easier to spot when ratification is (and isn’t) available.

When Does Ratification Work Under Australian Law?

Ratification is powerful, but it’s not automatic. Courts have set clear requirements you need to meet before a principal will be bound by a previously unauthorised act. The key rules are:

The agent must have purported to act for a principal

The person must have presented themselves as acting for a particular principal - not as a principal in their own right. If the person contracted in their own name without indicating any agency, there’s usually nothing for a principal to ratify.

The principal must be identified and in existence at the time

The supposed principal must have been an identifiable, existing legal entity when the act was done. As a general rule, you can’t ratify an act done on behalf of a non‑existent principal. There are special statutory rules for pre‑registration company contracts, but those operate under the Corporations Act rather than pure common law ratification (more on this below).

The principal must have capacity and be able to lawfully authorise

Ratification only works if the principal could have authorised the act at the time it was done. If the principal lacked capacity or the act was unlawful, ratification won’t cure it.

Full knowledge of material facts

The principal must ratify with knowledge of all material facts. If you approve while missing key information that would reasonably affect the decision, ratification may not be effective.

Ratify the whole transaction, within a reasonable time

You can’t pick and choose parts of a deal. Ratification must adopt the entire act or contract, and it needs to occur within a reasonable time. Delay can be risky - both because “reasonable” depends on context and because circumstances can change.

No prejudice to the third party before ratification

A third party isn’t locked in until ratification occurs. They can usually withdraw or revoke their offer before your ratification, and you can’t ratify to increase the third party’s burdens beyond what they agreed.

Effect of ratification

When valid, ratification “relates back” to the original act. The principal becomes bound and liable as if the agent had authority from the outset. That includes being responsible for performance, breach and remedies that flow from the contract.

These guardrails make ratification workable but prevent it from being used unfairly. If any element above is missing, you may need to pursue a different solution - for example, negotiating a fresh agreement or using a formal variation.

How To Manage Ratification Scenarios In Your Business

If you discover someone acted without authority, a quick and calm process helps you control risk. Here’s a practical approach that works across most industries.

1) Confirm what happened and who the parties are

• Get the facts in writing: the document or emails, dates, amounts and what was agreed.
• Check whether the person presented themselves as acting for your business (this goes to whether ratification is even available).
• Identify the counterpart and any time‑sensitive steps (deliveries, payments, milestones).

2) Decide whether you want the deal

Look at the commercial value and the legal exposure (price, warranties, termination rights, penalties). If the deal is broadly acceptable, ratification can be a clean way to keep things moving.

If there are issues but the relationship is important, consider negotiating a variation or addendum before ratifying. Where terms are unclear or high‑risk, getting a concise contract review can save you from unpleasant surprises.

3) Check the legal pre‑conditions for ratification

• Was your entity in existence and capable of authorising the act at the time?
• Did the purported agent act on your behalf (and not in their personal capacity)?
• Do you have full knowledge of material facts now?
• Is the third party still willing to proceed, or have they withdrawn?

4) Choose and document your position - fast

If you wish to ratify, communicate clear acceptance in writing to the third party (and the agent). If you don’t, promptly repudiate in writing so you don’t imply consent by silence or conduct (e.g., taking delivery or making part‑payment).

For internal governance, many businesses record the decision in a simple board note or a Directors’ Resolution, especially where the contract value is material. This creates a record of authority and helps prevent repeat issues.

5) Tighten your authority settings going forward

Prevention is best. Clarify who can bind the business, at what thresholds, and in which categories (procurement, sales, leases, software, HR). For day‑to‑day interactions, a concise letter of authority to act can set boundaries and reduce grey areas.

6) Watch your conduct until the position is settled

Because ratification can be implied, brief your team not to act in a way that suggests acceptance (like continuing performance) until a decision is made. Small steps can have big legal consequences.

Company-Specific Issues To Watch

Company decisions add a layer of governance and formalities. A few points to keep front of mind:

Authority to bind a company

Under the Corporations Act, a company can authorise people to enter contracts on its behalf in a variety of ways. Understanding section 126 (agency and company power) and how execution works under section 127 helps you design clear delegations and avoid disputes about who had authority.

Pre-registration contracts

Common law ratification generally requires the principal to exist at the time of the act. For pre‑incorporation contracts, the Corporations Act provides a separate mechanism: a company can adopt a promoter’s pre‑registration contract after it is registered, and the statute sets out who is liable if adoption does not occur. This is different from pure ratification, so treat it as a separate analysis and document the company’s decision formally.

Board oversight and thresholds

It’s good practice to set transaction thresholds that require board or senior approval - for example, any agreement over a certain dollar value or term length. Where you do ratify, recording the rationale and conditions in a short board paper or resolution can demonstrate that directors turned their mind to the risks.

Contract clean‑ups and variations

Sometimes the best path isn’t a simple ratification - it’s a tidy variation that corrects the overreach and sets the right terms going forward. If that’s the case, ensure any change is documented by someone with actual authority, not the person who overstepped in the first place.

Risk, Compliance And Third Parties

Ratification affects more than just contract law. It can touch consumer protections, workplace rules and how you handle customers and suppliers.

Australian Consumer Law (ACL)

If the unauthorised act involves selling to consumers or representations about your goods and services, remember your obligations under the Australian Consumer Law - including the prohibition on misleading or deceptive conduct in section 18. If you ratify, you adopt those representations and the associated compliance responsibilities (like consumer guarantees and refunds). Make sure your team knows the do’s and don’ts for promotions and sales.

Employment and internal accountability

If an employee acted outside scope, deal with the contractual issue first (ratify or repudiate), then address the internal side. Clear role descriptions and a tailored Employment Contract that defines authority limits can reduce the chance of repeat incidents. Where conduct was accidental, training and better workflows may be enough. Where it was deliberate, consider disciplinary pathways consistent with your policies.

Third-party rights and timing

Until you ratify, the third party can often withdraw. If the deal is valuable and you want it, don’t delay. If you don’t want it, say so quickly and clearly - and avoid conduct that implies acceptance.

Financial controls and insurance

As a practical safeguard, align your financial delegation policy with your legal authority settings. Requiring a second pair of eyes on high‑value commitments reduces the risk of unauthorised contracting. It’s also worth confirming whether your insurance responds to unauthorised acts, noting that insurance doesn’t fix contract liability if you choose to ratify.

What Documents Should You Put In Place?

The right contracts and policies make ratification the exception, not the rule. Consider the following to set clear boundaries and protect your position.

• Authority To Act: A short written authority or delegation note for staff or agents, setting out what they can do (and what they can’t). For specific engagements, an Authority to Act form provides clarity for everyone involved.
• Agency Agreement: If you appoint external reps or distributors, document the role, limits of authority, reporting, and when they can bind you. This reduces the risk of “apparent authority” disputes.
• Employment Contract: Staff agreements should spell out position responsibilities, spending limits, and who can sign on behalf of the business. A well‑scoped Employment Contract makes expectations crystal clear.
• Delegation of Authority Policy: A practical, internal policy mapping contract types and value thresholds to the roles that can approve them. Pair this with your finance approval workflow.
• Company Execution & Governance: Align your execution practice with the Corporations Act (e.g. section 127), and keep a simple register of authorised signatories. If needed, update your deed and execution procedures to avoid doubt.
• Customer and Supplier Contracts: Your standard terms should identify who is authorised to sign for your business and how variations must be made. When reviewing counterpart paper, use a contract review to ensure the signing clause and authority assumptions suit your structure.
• Board or Directors’ Resolution: For material ratifications, note the decision in a Directors’ Resolution so there’s a clear internal record.

You won’t need every document on day one, but most growing businesses benefit from at least an authority framework, tailored employment agreements and reliable standard terms.

Common Pitfalls And How To Avoid Them

Assuming silence is safe

Doing nothing can look like acceptance. Avoid taking steps that suggest the contract is on foot (like scheduling delivery) until you decide - and communicate that decision.

Trying to ratify what can’t be ratified

If the person didn’t purport to act for your business (they signed in their own name), common law ratification likely isn’t available. Consider negotiating a fresh agreement signed by the right person.

Partial or conditional ratification

Ratification of a contract is “all or nothing.” If you want changes, negotiate a variation the third party agrees to, then ratify the amended deal (or simply sign the varied contract with proper authority).

Leaving governance gaps

Oral promises about authority or “just get it done” emails create confusion. Use simple written delegations, keep your signatory list current, and route contracts through a consistent approval channel.

Overlooking company law mechanics

Make sure your process aligns with how companies give authority under the Corporations Act (e.g., section 126) and how they execute under section 127. Clean mechanics today prevent messy disputes tomorrow.

Key Takeaways

• Agency by ratification lets a principal adopt an unauthorised act and be bound as if it had been authorised from the start.
• Legally, ratification requires that the agent purported to act for an identified, existing principal; the principal has capacity; the whole transaction is adopted within a reasonable time; and the principal knows the material facts.
• A third party can usually withdraw before ratification, so timing and clear communication matter.
• For companies, align your delegations and execution practice with the Corporations Act - including sections 126 and 127 - and record decisions where appropriate.
• Reduce risk with practical tools: authority to act, agency agreements, tailored employment contracts, a delegation policy, and strong standard terms.
• If the terms or exposure are unclear, a focused contract review can help you decide whether to ratify, renegotiate or repudiate.

If you would like a consultation on managing agency by ratification or setting clear authority frameworks in your business, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.