You’ve done the work. You’ve sent the invoice. You’ve waited. You’ve sent a polite follow-up. Still nothing. Your client has gone silent, and your cash flow is suffering.
Stop sending increasingly desperate emails. You need a structured escalation process that increases pressure at each stage while protecting your legal position. This guide walks you through the three-step recovery process to collect unpaid invoices from non-responsive clients.
Why clients stop responding to invoices
Clients go silent for different reasons, and the reason matters:
Cash flow problems — they can’t pay right now but don’t want to admit it. These clients often respond well to payment plans once you apply formal pressure.
Dispute avoidance — they’re unhappy with the work but won’t articulate it. They hope you’ll give up. These clients need a clear deadline and consequences.
Deliberate non-payment — they never intended to pay. These clients only respond to legal action.
Administrative chaos — your invoice is lost in their system. These clients typically pay quickly once you escalate to someone senior.
The three-step process works regardless of the reason because it systematically removes every excuse and creates a documented trail of your attempts to resolve the matter.
Step 1: The friendly reminder (Days 1-14 after due date)
Start with a brief, professional reminder. Many non-payments are genuinely administrative errors, and you want to preserve the relationship if possible.
What to send:
- Email subject: “Invoice [number] now overdue — [Your Business Name]”
- Attach the original invoice again
- State the amount, due date, and number of days overdue
- Ask for payment within 7 days
- Offer a phone call to discuss any issues
Template opening: “Invoice #1234 for $2,850 was due on 15 March and is now 10 days overdue. I’ve attached a copy for your reference. Please arrange payment by 1 April. If there’s any issue with the invoice, let me know and we can discuss.”
What not to do:
- Don’t apologise for chasing payment
- Don’t offer unsolicited discounts
- Don’t threaten legal action yet
- Don’t send multiple reminders in the same week
If you get no response within 7 days, move to Step 2. Do not wait longer. Every day you delay weakens your position.
Ready to put it in writing?
Answer 3 quick questions to check you have the details your document needs, and see your next step.
1. Who owes you?
2. How much?
3. Do you have it in writing?
Your result is ready. Where should we send it?
Step 2: Formal letter of demand (Days 15-28)
This is where unpaid invoices get resolved. A properly drafted letter of demand delivered by registered post or email creates immediate pressure. It signals you’re no longer asking nicely — you’re preparing to take legal action.
What the letter must include:
- Your details and the debtor’s details
- Exact amount owed, broken down by invoice
- The work performed or goods supplied
- Payment due date and days overdue
- Legal basis for the claim
- Clear demand for payment within 7-14 days
- Statement of intended action if unpaid (tribunal or court claim)
- Your contact details for payment arrangements
Why it works:
Most clients know that a formal demand letter is the last step before legal action. It forces them to make a decision: pay now, negotiate a payment plan, or defend a tribunal claim. The majority choose to pay rather than face the cost and stress of tribunal proceedings.
Delivery method matters:
Email is acceptable for speed, but registered post creates a paper trail proving delivery. Send both. The registered post receipt becomes evidence if you need to file a tribunal application.
Claim Done automates this step. Tell us about your invoice and evidence, answer 5 minutes of questions, and our Programmatic Algorithms draft a legally precise letter of demand. We deliver it by email and generate a PDF for registered post. Flat fee, done in about 5 minutes.
Step 3: Tribunal or court claim (Days 29+)
If the letter of demand doesn’t work, you file a claim. You are taking the matter to the relevant state or territory tribunal or court to obtain a legally enforceable order for payment. In New South Wales, a business owed money has a debt claim for the Local Court, not NCAT.
Which tribunal or court:
- New South Wales: Local Court of NSW — Small Claims Division up to $20,000; General Division over $20,000 up to $100,000
- Victoria: Victorian Civil and Administrative Tribunal (VCAT) — Civil Claims List
- Queensland: Queensland Civil and Administrative Tribunal (QCAT) — minor civil dispute, up to $25,000
- Western Australia: Magistrates Court of WA — minor case claims up to $10,000; general procedure claims up to $75,000
- South Australia: Magistrates Court of SA — minor civil action up to $12,000; general claims up to $100,000
- Tasmania: Magistrates Court of Tasmania (Civil Division) — up to $50,000
- Australian Capital Territory: ACT Civil and Administrative Tribunal (ACAT) — civil disputes up to $25,000
- Northern Territory: NT Civil and Administrative Tribunal (NTCAT) — small claims up to $25,000
What you need:
- Completed tribunal application form or court statement of claim
- Copy of your invoice(s)
- Copy of the contract or agreement (if written)
- Evidence of work performed (photos, emails, delivery receipts)
- Copy of your letter of demand and proof of delivery
- Filing fee (filing fees change each 1 July; check the current fee on the tribunal’s or court’s website before you file)
After you file:
The debtor has a set time to file a defence. If they don’t defend, you can usually apply for default judgment without a hearing.
What happens at the hearing:
You present your evidence. The debtor presents theirs. The tribunal or court makes a decision, on the day or later. If you win, you get an order for payment. If the debtor still doesn’t pay, you can enforce the order through wage garnishment, bank account seizure, or property liens.
Claim Done’s Tribunal Application ($97) drafts your application, or a Local Court statement of claim for a New South Wales debt, and a witness statement. You attach your own evidence and file it yourself.
Timeline summary: How long does the full process take?
Week 1-2: Friendly reminder sent, 7-day response window
Week 3-4: Letter of demand sent, 7-14 day response window
Week 5: Tribunal or court claim filed if still unpaid
After filing: Hearing, if the debtor defends; timing depends on the tribunal or court
Not every formal demand needs to go to tribunal, and some matters settle once the debtor receives the tribunal notice.
Common mistakes that weaken your recovery
Waiting too long to escalate. Every month you wait reduces your chance of recovery.
Sending too many reminders. More than two friendly reminders makes you look desperate and suggests you won’t actually take action.
Offering unsolicited discounts. This signals the debt is negotiable and encourages the client to delay further hoping for a better offer.
Threatening legal action without following through. If you say you’ll file a tribunal claim by a certain date and then don’t, you’ve lost all credibility.
Not keeping records. Every email, every phone call, every delivery receipt matters. If you end up in tribunal, you need to prove you did the work and attempted to collect payment.
When to skip straight to Step 2 or Step 3
You don’t always need to follow the full three-step process. Skip the friendly reminder and go straight to a formal demand if:
- The invoice is more than 60 days overdue
- You’ve already sent multiple reminders with no response
- The client has a history of non-payment
- The amount is substantial (over $5,000)
- The client has indicated they dispute the work but won’t engage in resolution
Skip straight to tribunal if:
- The client has explicitly refused to pay
- The debt is over 90 days old with no engagement
- You’ve sent a demand letter and the deadline has passed with no response
- The client is showing signs of insolvency (closing down, selling assets)
How Claim Done helps at each step
Step 2 — Letter of Demand: Tell us about your invoice and evidence. Our Programmatic Algorithms draft a legally precise demand letter from your answers. We deliver it by email and generate a PDF for registered post. $49 flat fee, done in about 5 minutes. Get your letter of demand drafted by our Programmatic Algorithms and sent by email.
Step 3 — Tribunal Application: We prepare your tribunal application (a Local Court statement of claim for a New South Wales debt) and a witness statement. You attach your own evidence and file it yourself. $97 flat fee. Prepare your tribunal application.
We don’t give legal advice. We generate legal-style documents based on the information you give us.
What to do right now
If your client won’t respond to your invoice, take action today:
- Check how many days overdue the invoice is
- Gather your evidence (invoice, contract, proof of work, previous correspondence)
- Send a formal letter of demand if you’re past the friendly reminder stage
- Set a calendar reminder for the demand deadline
- Prepare to file a tribunal application if the deadline passes with no payment
The longer you wait, the harder it gets to collect. If you’re ready to send a formal demand letter, Claim Done can have it drafted in about 5 minutes, and sent once you approve it for a flat fee. Tell us about your invoice, answer a few questions, and we’ll handle the rest.
Frequently Asked Questions
How long should I wait before sending a letter of demand?
Send a friendly reminder 7-14 days after the due date. If there’s no response within 7 days of that reminder, send a formal letter of demand. Don’t wait longer than 30 days past the due date to escalate to a formal demand — every week you delay reduces your chance of recovery.
Can I charge interest on an overdue invoice?
Yes, if your contract or terms and conditions specify an interest rate for late payment. Without a written agreement, you typically can’t automatically charge interest, but you can include reasonable interest in your tribunal claim. Most businesses include a late payment clause in their standard terms.
What if the client claims they're unhappy with the work?
If they raise a genuine dispute after receiving your demand letter, you need to address it before filing a tribunal application. Ask them to specify in writing what the issue is and what they consider a fair resolution. If they refuse to engage or their complaint is vague, proceed with the tribunal application — the tribunal will assess whether the dispute is legitimate.
Do I need a lawyer to file a tribunal application?
No. Small claims processes in tribunals and courts are designed for self-representation. You present your own case, and the tribunal or court will guide the process. Claim Done drafts your application and a witness statement, but you file and attend the hearing yourself.
What happens if I win at tribunal but the client still doesn't pay?
You can enforce the tribunal order through several methods: wage garnishment (if they’re employed), bank account seizure, property liens, or appointing a sheriff to seize assets. Each state has different enforcement procedures.
Need this document prepared for you?
Claim Done generates professional legal documents from your evidence in about 5 minutes. Flat fee. No subscription.
What happens when you send a Letter of Demand
Same problem. What a prepared case looks like.