Can You Send A Letter Of Demand By Email In New Zealand?

You’ve delivered the goods, finished the job, or provided the service - and the invoice is now well overdue. You’ve followed up politely. You’ve sent reminders. Maybe you’ve even had a phone call where the customer “promised to pay next week”.

At this point, many NZ business owners ask the same question: can you send a letter of demand by email, and will it actually be effective?

In many situations, yes - emailing a letter of demand (often called a “letter before action”) can be a practical and effective step. But the details matter. You’ll want to think about proof of delivery, what your contract says about notices, how you word the demand, and what you’ll do if it’s ignored.

Below, we’ll walk through what NZ businesses need to know before sending a letter of demand by email, when email is (and isn’t) a good idea, and how to set yourself up for the strongest possible position if things escalate.

What Is A Letter Of Demand (And Why Do Businesses Use It)?

A letter of demand is a formal written request for someone to do something - most commonly, to pay a debt by a certain date. It’s usually sent before starting legal proceedings, which is why it’s also commonly described as a letter before action.

For small businesses, a letter of demand is often used when:

• a customer hasn’t paid an invoice on time
• a supplier has failed to deliver what they promised (and you want a refund or replacement)
• there’s a dispute over charges, scope, or contract terms
• someone owes you money after a contract has been terminated

It’s a useful tool because it shows you’re serious, creates a paper trail, and gives the other side a final opportunity to resolve the issue without going to court or the Disputes Tribunal.

Just as importantly, a well-drafted letter of demand helps you communicate clearly:

• what the issue is
• what you want (e.g. payment of $X)
• when you want it by
• what you’ll do next if it’s not resolved

If you’re running your business using clear written terms (for example, a Terms of Trade document), it’s usually easier to point to the exact payment obligations and any interest or recovery costs you’re entitled to claim.

Can You Send A Letter Of Demand By Email In New Zealand?

In general, you can send a letter of demand by email in New Zealand - there isn’t a blanket rule that says a demand must be posted or served in person for it to be sent properly.

However, it’s important to separate two ideas:

• sending a demand (as a practical step to seek payment or resolution), and
• formal service/notice requirements (which may apply under your contract or if you later start formal legal proceedings).

Whether email is the best method depends on your specific situation and what you’re trying to achieve. The real legal and practical issues are usually about:

• notice requirements in your contract (if you have one)
• proof the letter was received (or at least sent to the right address)
• fairness and reasonableness - particularly if the matter later goes before the Disputes Tribunal or courts

Check Your Contract First (Especially Any “Notices” Clause)

If you have a written agreement with the debtor (or customer), it may include a “notices” clause that sets out how formal notices must be sent - for example by:

• email to a nominated email address
• post to a nominated address
• hand delivery

This clause matters because if you’re relying on the letter as a formal “notice” under the agreement, you want to comply with the required notice method. If your contract says notices must be posted, and you only email, you may create an avoidable argument later about whether proper notice was given.

If you’re supplying services regularly (or working on bigger projects), having a properly drafted Service Agreement can help by clearly setting out payment terms, late fees, recovery costs, and how notices can be given.

Email Is Often Accepted In Practice (But Don’t Rely On Assumptions)

Even when there’s no written contract, emailing a letter of demand is common - especially where the email address is the usual communication channel and you’ve previously used it for quotes, invoices, and project updates.

The key is to send it in a way that’s professional, traceable, and hard to dispute.

When Email Is A Good Idea (And When It’s Risky)

Email can be a great option for NZ businesses because it’s fast, low-cost, and creates a dated record. But there are situations where relying on email alone can backfire.

When Sending A Letter Of Demand By Email Works Well

Email is usually a good idea when:

• you’ve been communicating with the customer through that email address the whole time
• the customer responds to emails (even if they’re dodging payment)
• you need to act quickly (for example, to avoid a long delay)
• you want an easy record of what was sent and when

When Email-Only Can Be Risky

Email can be risky when:

• you’re not confident the email address is still active or monitored
• the other party is already ignoring you and may later claim they never received it
• the amount involved is significant and you’re likely heading towards court action
• your contract requires notices to be served in a particular way (and email isn’t compliant)

In those situations, you may decide to send the letter of demand by email and by post (or courier), so you can show you took reasonable steps to ensure it was received.

If the relationship has escalated into a broader contract dispute (not just unpaid invoices), it can also be worth getting advice early, including whether a Deed of Settlement might be a cleaner way to finalise payment terms and avoid ongoing back-and-forth.

How To Send A Letter Of Demand By Email (So It’s Actually Effective)

If you’re going to send a letter of demand by email, treat it like a formal business communication - not a casual “please pay” reminder.

Here are practical steps that help strengthen your position.

1) Use A Clear Subject Line

Make it obvious what the email is about. For example:

• “Letter of Demand – Invoice #12345 – ”
• “Letter Before Action – Outstanding Payment of $X”

This reduces the chance the recipient claims they didn’t realise the seriousness of the message.

2) Attach The Letter As A PDF (And Also Paste It In The Email Body)

A PDF attachment looks more formal and is harder to “accidentally edit”. Pasting the core text into the email body also helps if the recipient says they couldn’t open attachments.

Tip: name the attachment clearly, e.g. “Letter of Demand – – .pdf”.

3) Send It To The Right Person (And Consider CCs Carefully)

Send it to the email address you’ve been dealing with. If you’re dealing with a company, consider whether you should also send it to:

• a general accounts email (e.g. accounts@...)
• a director or business owner (if you have their contact details legitimately)

Be careful about copying in third parties unnecessarily. You want to apply pressure, but not create extra legal risk (for example, allegations of harassment or inappropriate disclosure).

4) Ask For A Read Receipt (But Don’t Rely On It)

You can request a read receipt, but the recipient can refuse it or have settings that block it. Treat it as a bonus, not your only proof.

5) Keep Evidence: Save The Email, Attachments, And Delivery Details

Keep a clean file of:

• the sent email
• the attached PDF
• any automatic delivery confirmations or replies
• your invoice and any earlier reminders
• the underlying contract, quote, or purchase order

If you end up in the Disputes Tribunal or court, a clear timeline and paper trail can make a big difference.

What Should A Letter Of Demand By Email Include?

A letter of demand should be firm, clear, and specific - without turning into a rant. The goal is to resolve the issue, and also to show you’ve acted reasonably if things escalate.

While every situation is different, most business letters of demand should cover:

• who you are (your legal business name and NZBN/company details if relevant)
• who you’re writing to (the correct legal name of the customer/debtor)
• the background (what work was done / goods supplied, and when)
• the amount owing (including GST, and any interest or fees if your contract allows it)
• what you want them to do (e.g. pay $X)
• a deadline (a specific date/time, usually giving a reasonable period)
• how to pay (bank account details, reference to use)
• what happens next (for example, you may begin recovery action without further notice)

If your letter of demand is connected to broader legal obligations - for example, a dispute about product issues, refunds, or representations - you should be careful about how you reference New Zealand consumer law (including the Fair Trading Act 1986 and Consumer Guarantees Act 1993). What you say in writing can be relied on later, so it’s worth getting the wording right.

If you’re dealing with an ongoing commercial relationship, it can also help to ensure you’ve got well-drafted Business Terms in place going forward, so you’re not reinventing the wheel every time there’s a payment issue.

How Much Time Should You Give Them To Pay?

There’s no one-size-fits-all rule. A common approach is giving between 7 and 14 days, depending on:

• the size of the debt
• how long it has been overdue already
• the nature of the relationship (one-off job vs ongoing client)
• whether you’ve already given multiple extensions

The key is that the deadline should be reasonable in the circumstances - and clearly stated.

What If They Ignore Your Letter Of Demand?

If the recipient ignores your letter of demand sent by email, it doesn’t mean the letter was pointless. In many cases, it’s still an important step that shows you tried to resolve the issue before escalating.

Your next steps depend on the facts, the amount, and what outcome you’re aiming for. Common options include:

1) Follow Up (Once) With A Final Reminder

Sometimes a short follow-up after the deadline is enough - especially if the debtor is disorganised rather than intentionally avoiding payment.

Keep it simple: refer to the letter, note the deadline has passed, and confirm what you’ll do next.

2) Consider The Disputes Tribunal (For Smaller Claims)

For many small businesses, the Disputes Tribunal is a practical route for lower-value disputes. It’s designed to be accessible without formal court procedures, although you still need your evidence and documents in order.

3) Consider Court Action Or Debt Recovery (For Larger Or More Complex Claims)

For higher amounts, repeat offenders, or more complex disputes, you may need to consider a more formal recovery pathway.

This is where it’s especially important that your earlier documents (contracts, invoices, letter of demand, email trail) are consistent and properly drafted. Also keep in mind that if you do start formal proceedings, there may be specific procedural rules about how documents must be served - which can be different from how you send an initial demand.

4) Negotiate A Settlement (And Document It Properly)

Sometimes you’ll get a response like: “We can’t pay all of it, but we can pay $X over Y months.”

If you agree to a payment plan or reduced amount, document it properly so you’re not left in limbo if they default again. In many cases, a Deed of Settlement can set out the payment timetable, default consequences, and any releases clearly.

5) Fix The System So This Doesn’t Keep Happening

Unpaid invoices are often a symptom of missing (or weak) contract paperwork. Once you’ve dealt with the immediate problem, it’s a good time to tighten up your process:

• use clearer written terms before you start work
• ensure your invoices align with your contract terms
• include interest and recovery costs provisions where appropriate
• use signed acceptance (even for smaller jobs)

If you run a service business, tightening your onboarding documents with a tailored Service Agreement can make future debt recovery much smoother.

Key Takeaways

• You can generally send a letter of demand by email in New Zealand, and it’s often an efficient way to formally request payment before escalating.
• Before emailing a letter of demand, check your contract for any “notices” clause - if the agreement requires a specific delivery method, follow it (or use email and post together).
• To make an emailed letter of demand more effective, send it professionally with a clear subject line, attach it as a PDF, keep a full paper trail, and make sure it’s sent to the right contact.
• A strong letter of demand should clearly set out the debt (or issue), the legal basis, what you want, a reasonable deadline, and what steps you may take if it’s ignored.
• If your letter of demand is ignored, your options may include a final reminder, the Disputes Tribunal, court action, or negotiating a payment plan - but your outcome will usually depend on the quality of your contracts and evidence (and any formal service requirements if you commence proceedings).
• Putting clear payment terms in place upfront (for example through Terms of Trade or a tailored agreement) helps you stay protected from day one and reduces the risk of unpaid invoices.

Note: This article provides general information only and does not constitute legal advice. If you’d like help drafting or reviewing a letter of demand, or tightening your customer contracts and payment terms so you’re protected from day one, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.