Zombie Agreements: What Employers Need To Know (2026 Updated)

It’s easy to assume your employment paperwork is “sorted” once you’ve got something signed and filed away.

But in practice, a lot of New Zealand businesses end up with what HR teams often call “zombie agreements” - employment agreements (or terms and conditions) that are still shambling along in the background, even though they’re outdated, inconsistent with how your business actually operates, or no longer fit for purpose.

This 2026 update reflects the reality that workplaces are changing quickly (hybrid work, digital onboarding, new payroll systems, increased scrutiny on pay and leave compliance), and older agreements can quietly create risk if they’re not kept current.

Let’s break down what zombie agreements are, why they matter, and what you can do to fix them without turning it into a drawn-out employment issue.

What Are Zombie Agreements?

A zombie agreement isn’t a formal legal category in New Zealand law. It’s a practical term for an employment agreement (or a set of terms) that is technically still “alive” because it’s still governing the employment relationship - but it’s outdated, incomplete, or mismatched to reality.

Zombie agreements commonly show up in small businesses and growing companies because you move fast, responsibilities change, and documents don’t always keep up.

Common Examples Of Zombie Agreements

• Old templates used for new hires that don’t reflect current roles, pay structures, or policies.
• Job titles and duties that are no longer accurate after promotion, restructure, or growth.
• Pay and hours clauses that don’t match what the employee actually works (for example, “40 hours” on paper but a regular 50+ in practice).
• Leave and public holiday terms that are vague, incorrect, or inconsistent with how payroll is processing entitlements.
• Hybrid/remote work arrangements happening informally with no written expectations around availability, equipment, or security.
• Policies that have changed over time (or new systems introduced) but the agreement still references the old process.

On their own, these issues can look minor. The risk is what happens when there’s a disagreement, a complaint, a restructure, or an audit - that’s when zombie agreements tend to “bite”.

Why Zombie Agreements Happen (Even In Well-Run Businesses)

If you’ve discovered you might have zombie agreements in your business, you’re not alone - and it doesn’t mean you’ve done anything deliberately wrong.

Zombie agreements usually happen because of normal business growth and day-to-day pressure:

• You hired quickly using a template, intending to “fix it later” (and later never came).
• Roles evolved over time, but nobody updated the job description or key clauses.
• You changed operations (new opening hours, new service lines, seasonal busy periods) and “informal arrangements” took over.
• Managers made promises verbally (“we’ll always do WFH on Fridays” or “you’ll get time off for overtime”) that weren’t properly documented.
• You bought a business or took over a team and inherited agreements you didn’t draft.
• You introduced a new payroll system and relied on settings that don’t match the contract wording (or the Holidays Act rules).

The tricky thing is: even if everyone is happy right now, the agreement still matters because it’s the baseline legal document that an employee (or the Employment Relations Authority) will look at if something goes wrong.

What Are The Legal Risks Of Zombie Agreements In New Zealand?

Zombie agreements can create risk in three big ways: (1) compliance issues, (2) disputes about terms, and (3) costly mistakes during change.

1) Employment Relations Act 2000 (Good Faith And Clarity)

Employment relationships in NZ are governed by the Employment Relations Act 2000, including the duty of good faith.

If your agreement is vague, outdated, or inconsistent with how you treat employees in practice, it can become much harder to manage performance, change duties, or resolve issues fairly.

It can also increase the risk that an employee argues they weren’t properly informed, consulted, or treated fairly - especially if you try to rely on clauses that don’t reflect reality.

2) Holidays Act 2003 (Leave And Pay Calculations)

Leave entitlements and pay calculations are a common pain point for NZ employers - especially where hours vary, overtime is common, or allowances/commission apply.

If your agreement doesn’t clearly describe:

• ordinary hours and days of work
• how overtime is treated
• whether allowances form part of “gross earnings”
• how time off in lieu works (if offered)

…you can end up with payroll practices that don’t align with the Holidays Act 2003, creating backpay risk and messy disputes.

Even where you’re trying to do the right thing, unclear drafting can make it hard to prove what was agreed.

3) Wages Protection Act 1983 (Deductions And Overpayments)

If you discover you’ve overpaid someone, or you need to deduct money for something (like unreturned property), you can’t just do it because it “seems fair”. The Wages Protection Act 1983 sets rules around wage deductions, including consent requirements in many cases.

Zombie agreements often have either:

• no deductions clause at all, or
• a clause that’s too broad or outdated to safely rely on.

This can turn a straightforward fix into a conflict very quickly.

4) Health And Safety At Work Act 2015 (Duties Don’t Stop At The Contract)

Under the Health and Safety at Work Act 2015, you have duties to provide a safe workplace, systems of work, training, and supervision.

When agreements and role descriptions are outdated, it’s harder to show you’ve clearly communicated safety responsibilities (especially for supervisors, drivers, machinery operators, or remote workers).

5) Business Change Risks (Restructures, Hours Changes, Terminations)

Zombie agreements often “wake up” when you need to make a change - like reducing hours, changing rosters, or ending employment.

If your contract says one thing but your business has been operating another way for months (or years), it can be difficult to implement change lawfully and fairly.

For example, if you need to reduce an employee’s hours, you generally can’t just do it unilaterally - you’ll usually need a proper process and agreement, because hours are a core term of employment. (This tends to come up a lot when employers start looking at reducing staff hours.)

Similarly, when ending employment, a contract that doesn’t clearly deal with notice periods, garden leave, or payment in lieu can create confusion and risk. In many cases, employers look to use payment in lieu of notice, but it’s important the agreement supports it and the process is handled correctly.

How To Identify Zombie Agreements In Your Business

You don’t need to wait for a dispute to find out your agreements are outdated. A simple internal audit (done calmly and methodically) can usually spot the most common issues.

A Quick Zombie Agreement Checklist

Pick a few agreements and check:

• Role and duties: Do the job title and duties match what the employee actually does now?
• Location of work: Does it reflect remote/hybrid arrangements (if applicable)?
• Hours and days of work: Do they match actual rosters and regular patterns?
• Pay structure: Is it clear what is salary vs wages, and what extras exist (allowances, commission, bonuses)?
• Overtime: Is it addressed clearly and realistically? (This is especially important if people routinely work extra hours - see working overtime.)
• Time off in lieu: If you offer it informally, is it documented properly? (This often links to time off in lieu considerations.)
• Leave provisions: Are sick leave, annual leave, and public holidays described correctly and aligned with how you administer leave?
• Notice and termination: Are notice periods clear and workable?
• Policies: Does the agreement refer to policies that no longer exist (or have been replaced)?

Red Flags That Usually Mean “Get Advice Now”

• The agreement includes outdated legal references or obviously old terminology.
• The employee is working materially different hours from what the contract says.
• You’ve made significant pay changes (salary to wages, or added commission/allowances) without clear written variation.
• There are inconsistent agreements across staff doing the same role, without a clear reason.
• You’ve been treating someone as “casual” but they work regular hours (this is a separate classification risk, but it often shows up during agreement audits).

If you’re hiring new staff, it’s also worth checking that your baseline Employment Contract template is still fit for your business today - because otherwise you’re accidentally creating brand-new zombie agreements every time you onboard someone.

How To Fix A Zombie Agreement (Without Starting A Dispute)

The goal isn’t to “catch employees out” or suddenly enforce harsh clauses. The goal is to make sure your business is legally protected and your team has clear, fair terms going forward.

In New Zealand, changing an employment agreement usually requires a variation by agreement - you can’t typically just rewrite it and tell the employee “this is the new contract now”.

Step 1: Get Clear On What Needs To Change (And Why)

Before you talk to employees, identify:

• what clauses are outdated
• what your business is actually doing in practice
• what outcome you need (clarity, compliance, operational flexibility, role alignment)

Keep it practical. If a clause is outdated but has never caused issues (and isn’t risky), you might bundle it into a broader update rather than making it a “big deal”.

Step 2: Decide Whether You Need A Variation Or A New Agreement

Sometimes a targeted variation letter is enough (for example, updating hours, location of work, or adding a commission schedule).

Other times, especially where the contract is very old or inconsistent, it can be cleaner to offer a replacement agreement that clearly states it replaces and supersedes previous agreements.

This is also a good time to check whether you need different contract types for different working arrangements (full-time, part-time, fixed-term, casual).

Step 3: Consult Properly (And Don’t Rush It)

Even when you’re making sensible updates, employees should have a genuine opportunity to:

• review the proposed changes
• ask questions
• seek independent advice
• provide feedback

A rushed process is one of the quickest ways to turn a normal update into a relationship problem. In employment law, process matters almost as much as the final outcome.

Step 4: Be Careful With Leave, Shutdowns, And “Automatic” Deductions

One common zombie agreement issue is employers doing things a certain way for years (for example, forcing annual leave over a shutdown period) without checking whether the law and agreement actually support it.

If you’re planning a shutdown or you want to direct employees to take leave at certain times, make sure you understand the rules around forced annual leave and what notice/consultation may be required.

The same goes for deductions (for example, deducting for damage or till shortages) - these are high-risk areas if your contract wording is vague or non-compliant.

Step 5: Update Policies And “Operational Reality” At The Same Time

Employment agreements don’t exist in a vacuum. If you’re updating contracts, it’s often the perfect time to update key workplace policies too - especially where your operations have changed.

Examples include:

• remote work expectations
• privacy and device use
• hours, overtime approval, and TOIL rules
• performance and conduct processes

Where you’re collecting staff information, using monitoring tools, or storing personal data, your documentation and practices should be consistent with the Privacy Act 2020. (It’s also worth checking you have an appropriate Privacy Policy if you collect personal information from staff, customers, or users.)

Step 6: Document The Outcome Clearly (And Store It Properly)

Once changes are agreed, capture them in writing, signed by both parties, and keep clean records. You’d be surprised how often businesses agree changes informally, then can’t prove what was agreed later.

Also make sure payroll and rostering systems reflect the updated terms - otherwise you can “fix” the contract but keep the operational mismatch that created the zombie agreement in the first place.

What If An Employee Won’t Agree To The Update?

This is where tailored advice is essential.

Sometimes, an employee has valid concerns, and you can negotiate a middle ground. Sometimes, the business genuinely needs a change for operational reasons, and you may need to consider a formal change process (which can include consultation and, in some situations, restructuring).

What you want to avoid is trying to “force” the change without a proper process - that can quickly increase the risk of a personal grievance.

If the employee is not currently working (for example, due to lack of work) you might also be thinking about stand-down provisions - but this is another area where your contract wording and process matter. It’s worth understanding how employee stand down operates in an NZ context before taking action.

Key Takeaways

• Zombie agreements are outdated or mismatched employment agreements that still govern the employment relationship, even though your business has changed.
• They often arise from fast hiring, informal changes to roles/hours, business growth, or inherited paperwork after a takeover.
• The biggest risks tend to show up around hours and pay, overtime, leave entitlements (Holidays Act 2003), wage deductions (Wages Protection Act 1983), and managing change fairly under the Employment Relations Act 2000.
• A simple contract audit can help you spot red flags early, before a dispute or compliance issue forces your hand.
• Fixing zombie agreements usually requires a clear plan, good-faith consultation, and properly documented variations or replacement agreements.
• Updating your agreements is a chance to protect your business from day one going forward - and give employees clarity about what to expect.

If you’d like help reviewing or updating your employment agreements (or you’re worried you’ve got a zombie agreement situation), you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.