How to Serve a Letter of Demand in Australia: Registered Post, Email or In Person?

You have drafted a letter of demand. The other party owes you money, and you are ready to send it. But how you serve that letter matters just as much as what it says.

Serve it incorrectly and you may not be able to prove delivery. Without proof, a tribunal or court may not accept that the other party had proper notice. That can delay your case, weaken your position, or force you to start again.

Why proper service matters

A letter of demand is often the first step in formal dispute resolution. If the recipient ignores it and you proceed to tribunal or court, you will need to prove:

• The letter was sent
• It was delivered to the correct person or address
• The recipient had a reasonable opportunity to respond

Without proof of service, a tribunal may reject your claim that the other party was given proper notice. That can delay or dismiss your application.

Proper service also starts the clock. Most letters of demand include a deadline, typically 7 to 14 days. That deadline only begins when the letter is properly served.

Valid methods of service in Australia

There is no single law that governs how to serve a letter of demand. The method you choose depends on the context, the recipient, and what you may need to prove later.

The three most common methods are registered post, email, and personal service.

Registered post (Australia Post)

Registered post is the most traditional and widely accepted method. It provides a tracking number and proof of delivery.

How it works:

• Print your letter of demand
• Send it via registered post at Australia Post
• Keep the receipt with the tracking number
• Track delivery online via the Australia Post website
• Obtain proof of delivery once signed for

Advantages:

• Creates a paper trail that is difficult to dispute
• Proof of delivery shows the date and time it was signed for
• Accepted by all Australian tribunals and courts
• Works for individuals and businesses

Limitations:

• Costs around $9–$15 depending on weight
• Requires the recipient to sign for it — if they refuse or are not home, it may be left at a post office
• Slower than email, typically 2–5 business days

Best for: High-value debts, formal disputes, or cases where you expect the matter may proceed to tribunal or court.

Email

Email is fast, cheap, and increasingly accepted as valid service, but only in certain circumstances.

How it works:

• Send the letter of demand as a PDF attachment
• Use a clear subject line (e.g., “Letter of Demand — Invoice #1234”)
• Send from a professional email address
• Request a read receipt (though this is not always reliable)
• Keep a copy of the sent email and any replies

Advantages:

• Instant delivery
• No postage cost
• Easy to attach supporting documents
• Creates a digital record

Limitations:

• The recipient can claim they never received it or that it went to spam
• Read receipts are not proof of delivery — the recipient can disable them
• Some tribunals may not accept email service unless the recipient has agreed to it in writing (e.g., in a contract)
• No independent third party to verify delivery

Best for: Informal disputes, business-to-business matters where email is the usual method of communication, or where the contract specifies email as an acceptable method of service.

Personal service (hand delivery)

Personal service means physically handing the letter to the recipient or leaving it at their address.

How it works:

• Print the letter of demand
• Deliver it in person to the recipient or their registered address
• If handing it to the person, confirm their identity
• If leaving it at their address, place it in the letterbox or hand it to an adult at the premises
• Make a written record of the date, time, and method of delivery

Advantages:

• Immediate delivery
• No reliance on Australia Post or email systems
• Can be useful if the recipient is avoiding registered mail

Limitations:

• Difficult to prove unless witnessed or recorded
• The recipient can deny receiving it
• Not practical for recipients in other states or remote locations
• May escalate tension in already hostile disputes

Best for: Local disputes, situations where the recipient is avoiding other methods, or where you have a witness who can confirm delivery.

What counts as proof of delivery?

Proof of delivery is what you will rely on if the matter proceeds to tribunal or court. The standard of proof varies depending on the method of service.

Registered post:

• Australia Post proof of delivery (available online via tracking number)
• Shows the date, time, and signature of the person who signed for it
• Accepted by all Australian tribunals and courts

Email:

• Copy of the sent email showing the recipient’s address, date, and time
• Any reply from the recipient acknowledging receipt
• Read receipt (if available, though not conclusive)
• Some tribunals may require evidence that the recipient has agreed to email service

Personal service:

• Statutory declaration or affidavit from the person who delivered it
• Witness statement if someone accompanied you
• Photograph or video showing delivery (use with caution — may escalate disputes)

What if the recipient refuses to accept delivery?

If the recipient refuses to sign for registered post or accept personal service, that does not mean service has failed.

Registered post: If the recipient refuses to sign or collect the letter from the post office, Australia Post will note this on the tracking record. In most cases, a tribunal will accept that service was attempted and that the recipient had notice.

Personal service: If the recipient refuses to take the letter, place it at their feet or leave it at their address. Make a written record of what happened. If you have a witness, ask them to provide a statement.

Email: If the recipient does not reply or claims they never received it, send a follow-up email and consider using registered post as a backup.

Serving a letter of demand to a company

For a registered company (Pty Ltd or Ltd), you must serve the letter at the company’s registered address. You can find this on the ASIC register.

Acceptable methods:

• Registered post to the registered address
• Email to the company’s official email address (if listed on ASIC or agreed in a contract)
• Personal service at the registered office

Do not send it to a director’s home address unless that is also the registered address. Service to the wrong address may not be valid.

What if you do not have a current address?

If the recipient has moved or you do not have a current address, you have limited options.

Steps to take:

1. Check the electoral roll (available via the AEC for a small fee)
2. Search online directories or social media for updated contact details
3. Contact mutual acquaintances or the recipient’s employer (if appropriate)
4. If the debt relates to a tenancy, contact the property manager or landlord

If you still cannot locate them, you may need to apply for substituted service. This means asking a tribunal or court for permission to serve the letter by an alternative method (e.g., email, social media, or newspaper advertisement). This is typically only granted in tribunal proceedings, not before.

How ClaimDone handles service

When you use ClaimDone to generate a letter of demand, we handle the entire process, including service.

What we do:

• Draft the letter based on the evidence you upload
• Format it professionally with your details and the recipient’s details
• Send it automatically via registered post or email (your choice)
• Provide you with proof of delivery

You do not need to visit a post office, track delivery, or worry about formatting. We handle it end-to-end for a flat fee of $79.

If the recipient does not respond, you can escalate to a final demand or prepare a statutory demand against a company using ClaimDone’s other services.

Final checklist before you serve

Before you send your letter of demand, confirm:

• [ ] The recipient’s name and address are correct
• [ ] The amount claimed is accurate and supported by evidence
• [ ] The deadline for payment is clear (typically 7–14 days)
• [ ] You have chosen the right method of service for your situation
• [ ] You have a plan to track and prove delivery
• [ ] You have kept copies of all documents and correspondence

Ready to send your letter of demand?

ClaimDone generates and sends your letter of demand automatically, with proof of delivery included. Choose registered post or email, upload your evidence, and we handle the rest. No lawyer, no subscription, $79 flat fee. Generate and send your letter of demand now.

Frequently Asked Questions

Is email valid for serving a letter of demand in Australia?

Email can be valid, but it depends on the circumstances. If the recipient has agreed to email service in a contract, or if email is the usual method of communication between you, most tribunals will accept it. However, you must keep proof of the sent email, and the recipient can dispute whether they received it. Registered post is safer if you expect the matter may go to tribunal.

What happens if the recipient does not collect the registered letter?

If the recipient refuses to collect the letter from the post office, Australia Post will note this on the tracking record. In most cases, a tribunal will accept that you attempted service and that the recipient had notice. The letter does not need to be physically received — only that a reasonable attempt was made to deliver it.

Can I serve a letter of demand by text message or social media?

Text message and social media are not generally accepted as valid methods of service unless the recipient has specifically agreed to it in writing. If you cannot serve the letter by registered post, email, or personal service, you may need to apply for substituted service through a tribunal. Do not rely on informal methods unless you have no other option.

Do I need to serve a letter of demand before going to tribunal?

Most Australian tribunals require you to attempt to resolve the dispute before filing an application. A letter of demand is the standard way to show you tried. If you go straight to tribunal without sending a demand letter, the tribunal may dismiss your application or order you to attempt negotiation first. Always send a letter of demand and keep proof of delivery.

How long should I wait after serving a letter of demand?

The standard deadline in a letter of demand is 7 to 14 days from the date of service. If the recipient does not respond or pay within that time, you can proceed to the next step — whether that is a final demand, tribunal application, or statutory demand. Do not wait too long, as delay can weaken your position and may affect limitation periods.