Employment Variation Letter Template

As your business grows, your team’s roles, hours and working arrangements will naturally change too. You might be promoting someone into a new position, moving a staff member to part-time hours, updating pay, or introducing new policies around remote work.

But from a legal perspective, it’s important to remember one key point: an employment contract isn’t something you can usually change unilaterally. In most cases, you’ll need the employee’s agreement to vary (amend) the contract, and you’ll want a clear paper trail showing what changed and when.

That’s where using an employment variation letter template can help. A well-drafted variation letter can document the agreed change, reduce misunderstandings, and protect your business if a dispute arises later.

In this guide, we’ll walk you through when you need an employment variation letter, what to include, common mistakes to avoid, and provide a practical template you can adapt for your workplace.

What Is An Employment Variation Letter (And When Do You Need One)?

An employment variation letter is a written document that confirms changes to an employee’s existing employment contract. It’s sometimes called an “employment contract variation letter” or an “amendment change of employment contract letter template”.

In plain English, it’s a “we’re changing X, you agree, and here are the details” letter.

Common Situations Where You Should Use A Variation Letter

You’ll typically use an employment variation letter when you and the employee agree to change contract terms such as:

Job title and duties (e.g. promotion, restructure, new reporting lines)
Hours of work (e.g. full-time to part-time, or increased/decreased ordinary hours)
Pay (e.g. pay rise, change to salary, changes to allowances)
Work location (e.g. office relocation, hybrid or remote working arrangement)
Employment status (e.g. casual conversion or changes in engagement terms)
Notice periods or other procedural terms (where legally permitted and agreed)
New benefits (e.g. car allowance, bonus structure, additional leave benefits)

Even if the change seems “small”, documenting it can help avoid disputes later (for example, a disagreement about whether a pay change was temporary or permanent).

Variation Letter Vs New Employment Contract

A variation letter is usually appropriate when the core employment relationship is continuing, and you’re simply changing certain terms.

However, if the changes are extensive (for example, the employee is moving into a substantially different senior role with a new remuneration structure and responsibilities), it can sometimes make more sense to issue a new employment agreement rather than patching the old one with multiple variations.

As a general guide:

Minor to moderate changes: use a variation letter that “sits alongside” the existing contract.
Major overhaul of terms: consider a fresh contract (and carefully manage how it replaces the old one).

If you’re unsure, it’s worth getting advice before you issue documents, particularly where your existing Employment Contract includes specific rules about how variations can be made.

Can You Change An Employment Contract Without The Employee’s Agreement?

In most cases, no. An employment contract is a legally binding agreement, which means changes usually need mutual agreement (you agree, the employee agrees).

If you try to impose changes without agreement, you can create legal risk, including:

breach of contract claims
unfair dismissal or constructive dismissal allegations (depending on the circumstances, including whether the employee resigns and why)
award or enterprise agreement compliance issues
general protections risks (if the change is connected to a protected workplace right)

What About “Reasonable Changes” Clauses?

Some employment contracts include a clause allowing the employer to make certain changes, such as updates to policies, reporting lines, or minor operational adjustments.

Even where you have a clause like this, you should still be cautious. Whether you can rely on it depends on the wording of the contract and the nature of the change. These clauses often won’t justify changes to fundamental terms like pay, hours, or core duties without the employee’s agreement.

As a practical matter, it’s usually best to document agreed changes in writing anyway, even if you think you have some contractual discretion.

Award, Enterprise Agreement And NES Minimums Still Apply

Even if an employee agrees to a change, you still need to ensure the new arrangement complies with:

the National Employment Standards (NES)
any applicable modern award
any enterprise agreement
workplace policies and WHS obligations

For example, if you reduce an employee’s hours, you’ll want to consider award requirements, minimum engagements (particularly for part-time employees), and whether the change affects leave accruals and other entitlements.

How To Use An Employment Variation Letter Template The Right Way

A good employment variation letter template is only helpful if you use it properly. The goal isn’t just paperwork - it’s clarity and enforceability.

Step 1: Check The Existing Contract First

Before you propose changes, look at the current employment contract and check:

how variations must be made (e.g. “in writing and signed by both parties”)
any clauses relevant to the change (e.g. mobility clause for location changes)
any notice requirements for roster or shift changes (particularly for award-covered staff)

If you’re updating the employment relationship more broadly (for example, introducing new workplace rules), consider whether a Workplace Policy update is also needed.

Step 2: Confirm The Change Is Lawful And Commercially Sensible

Before you put anything in writing, sense-check the change:

Does it comply with minimum entitlements?
Does it create unintended consequences (e.g. overtime triggers, changed classification levels, allowance entitlements)?
Is it clear whether the change is permanent, temporary, or subject to review?

Clarity here reduces the risk of disputes later.

Step 3: Discuss The Change With The Employee (And Give Them Time)

For most variations, you should have a real discussion first. Explain:

what is changing and why
when it will take effect
whether any other terms will stay the same
what happens if the change doesn’t work (if relevant)

It’s also a good idea to give the employee time to consider the change (especially for significant changes), rather than putting them on the spot.

Step 4: Put The Variation In Writing And Get Signatures

This is the point where your template matters. The letter should be signed and dated by both parties.

Once signed, keep it on file with the original contract and provide a copy to the employee.

Employment Variation Letter Template (Australia)

Below is a practical employment variation letter template you can adapt. This template is designed for small businesses and is written in plain English, but you should still tailor it to your facts (and check award/compliance requirements where relevant).

Template: Employment Contract Variation Letter

Date:

To:
Address:

Subject: Variation To Employment Contract

Dear ,

We refer to your employment with and your employment agreement dated (the Employment Agreement).

This letter confirms that you and agree to vary the Employment Agreement on the terms set out below (the Variation).

1. Details Of The Variation

With effect from , the Employment Agreement will be varied as follows:

For example (delete as appropriate):

Position: Your position will change from to , and you will report to .
Hours Of Work: Your ordinary hours of work will change from to per week, worked on .
Remuneration: Your base pay will change to $ (inclusive/exclusive of superannuation). Payment will continue to be made in accordance with our usual payroll cycle.
Work Location: Your primary work location will change to . Any requirements for travel between sites will be .
Temporary Arrangement: This Variation will apply from until , unless otherwise agreed in writing.

2. No Other Changes

Except as set out in this Variation letter, all other terms and conditions of the Employment Agreement remain unchanged and continue in full force and effect.

3. Confirmation Of Agreement

Please sign and return a copy of this letter to confirm your agreement to the Variation.

If you have any questions about this Variation, please let us know.

Yours sincerely,

For and on behalf of

Acknowledgement And Agreement

I, , confirm that I have read and understood this Variation letter and agree to the Variation set out above.

Signed: ___________________________
Name:
Date:

Signed for and on behalf of : ___________________________
Name:
Title:
Date:

Practical Tips When Using The Template

Be specific: clearly state what is changing (and what is not).
Include an effective date: avoid “we already started this last month” ambiguity.
Consider whether the change is temporary: if it’s a trial period, include a review date.
Attach supporting documents if needed: e.g. a new position description.
Don’t accidentally vary too much: keep it focused on the terms that actually changed.

Common Mistakes Small Businesses Make When Varying Employment Contracts

Most contract variation issues happen because the business moved quickly (which is understandable) and didn’t document the change clearly. Here are the most common pitfalls we see.

1. Relying On Verbal Agreements

Even if the employee says “yes” in a meeting, you can still run into trouble later if there’s no written confirmation.

If a dispute arises, the question becomes: what exactly was agreed? A signed variation letter helps you avoid that uncertainty.

2. “Changing The Contract” By Updating A Policy Only

Policies are important, but they’re not always a substitute for changing contractual terms.

For example, changing someone’s hours or pay is usually a contract change, not just a policy update. If you’re introducing new rules around devices, confidentiality processes, or remote work expectations, a well-structured policy is key (and you should ensure your approach is compliant with any applicable laws).

3. Failing To Consider Awards And Pay Compliance

When you change a role, hours, or classification, you may also affect:

minimum pay rates
penalty rates and overtime
allowances
break entitlements

Even a well-intentioned change can cause compliance issues if it accidentally drops someone below their minimum entitlements.

4. Not Addressing Knock-On Effects (Leave, Notice, Benefits)

Some changes have flow-on effects. For example:

reducing hours may change leave accrual
changing pay structure may affect calculations for payment in lieu of notice
changing duties may increase WHS risks or training requirements

It’s often worth listing related administrative updates you’ll make (for example, updating payroll records, position descriptions, and internal systems) so everything stays consistent.

What Other Documents Should You Update After A Contract Variation?

An employment variation letter is a strong start, but it’s not always the only document affected. Once you’ve varied a contract, you should consider whether other employment documents need updating too.

Employment Contract And Employee File Records

Keep the signed variation letter with the employee’s original contract and any prior variations. This helps you maintain a clear timeline of agreed terms.

Workplace Policies And Handbooks

If the change relates to broader workplace conditions (like remote work, device use, or confidentiality processes), your policies may need updating so they reflect how you actually operate.

Confidentiality And IP Protection

If the employee is moving into a role with greater access to sensitive information, consider whether your contract terms around confidentiality and intellectual property are still fit for purpose.

This might be handled in the original employment contract, or you may need a separate arrangement depending on your setup and industry.

Business Structure Or Ownership Documents (If The Change Is Linked To Equity)

Sometimes a “promotion” includes equity or a change in ownership structure (for example, issuing shares or introducing a bonus tied to company performance).

In those cases, you may also need corporate documents like a Company Constitution or a Shareholders Agreement aligned with the new arrangement.

This is one of those areas where getting advice early can save you a lot of clean-up later, because employment terms and ownership rights are governed by different rules.

Key Takeaways

An employment variation letter template helps you document agreed changes to an employment contract, such as hours, pay, role duties, or location.
In Australia, most contract changes require mutual agreement - you generally can’t impose fundamental changes unilaterally without legal risk.
A good variation letter clearly states what is changing, when it starts, and confirms all other terms stay the same.
Always check modern award/enterprise agreement and NES compliance before finalising changes, even if the employee agrees.
Avoid common mistakes like relying on verbal agreements, changing contract terms via policy only, or missing flow-on effects to entitlements and payroll.
After varying a contract, consider whether related documents (policies, position descriptions, pay records, and ownership documents) also need updating.

If you’d like help preparing an employment variation letter or updating your Employment Contract, you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.

Employment Variation Letter Template: Legally Amending Contracts In Australia