How often should I follow up on a past due invoice?

Every 5 business days works well. Day 5, day 10, day 15 past due. This shows consistency without being aggressive. After day 30, escalate to formal notices rather than friendly follow-ups.

Should I personalize each follow-up or use templates?

Use templates as a base but personalize them. Change the client name, invoice number, and date. But keep the core message similar. This gives you consistency while avoiding a robotic tone.

What if the client says they'll pay 'next week' every time?

Stop accepting vague promises. Require a specific date and payment method. 'I need payment by Wednesday at 5 PM via bank transfer.' If they miss that deadline, escalate immediately without another conversation.

How to Chase a Past Due Invoice: Scripts and Timeline

Scripts eliminate guesswork. You’re not figuring out what to say. You’re executing a proven process. Here are exact scripts for each stage.

Timeline at a Glance

Day 1-3: Send invoice. Day 5: Friendly reminder if no payment. Day 10: Check-in asking about barriers. Day 15: Firm follow-up, direct language. Day 30: Formal demand letter. Day 45: Consider collections or court.

Cadence matters more than exact dates. Every 5 business days shows consistency. Clients know when to expect your next message.

Script: First Reminder (Day 5)

Subject: Quick check on invoice #[number]

Hi [Client Name],

I hope things are going well. I wanted to check in on invoice #[number] for [amount], which was due on [date]. I haven’t seen payment yet.

Could you confirm that you received the invoice? I’m happy to resend it or discuss payment options if needed.

Thanks, [Your Name]

Why this works: Friendly opener, assumes mistake not malice, offers help. Most clients pay after this.

Script: Second Follow-Up (Day 10)

If no response to the first reminder, send this:

Subject: Follow-up on invoice #[number] due [date]

Hi [Client Name],

I’m following up on invoice #[number] for [amount], originally due [date]. As of today, payment hasn’t been received.

A few quick questions:

Did you receive the invoice?
Is there an issue with the invoice amount or the work?
Is payment timing a concern right now?

I’m happy to discuss any of these. Let me know where you’re at and we can work from there.

Best, [Your Name]

Why this works: Shifts from mistake assumption to asking questions. Opens door for clients to explain real issues.

Strategy business roadmap timeline planning — Scripts remove emotion from collections. You're following a process, not reacting to frustration.

Script: Firm Follow-Up (Day 15)

Subject: Payment Required: Invoice #[number]

Hi [Client Name],

Invoice #[number] for [amount] is now 15 days overdue. I’ve reached out twice without response.

I need to collect this payment. Here’s what happens next:

If I receive payment by [specific date], we’re all set.
If I don’t, I’ll need to escalate this to collections by [date].

Can you confirm receipt of this email and commit to a payment date?

[Your Name]

Why this works: Direct about situation, clear on timeline, explicit on consequences. Client can’t claim ignorance. This often triggers payment.

Script: Phone Call (Day 15-20)

Call if email fails. Have a script to stay focused.

“Hi [Client Name], it’s [Your Name]. I’m calling about invoice #[number] for [amount], due [date]. I haven’t received payment and sent a couple emails. I want to understand what’s happening. Is there an issue with the invoice, the work, or cash flow timing?”

Listen without interrupting. Then respond to their actual situation:

Mistake: “Great, when can I expect payment?”
Dispute: “Let’s talk through it. What’s the issue?”
Cash flow: “Can we set up a payment plan?”
Avoidance: “I need payment by [date]. If not, I’ll escalate to collections.”

Phone calls work because clients can’t ignore you like emails.

Script: Formal Demand Letter (Day 30)

Subject: FINAL NOTICE: Payment Demand for Invoice #[number]

[Date]

[Client Name and Address]

RE: Demand for Payment of Invoice #[number] in the amount of [amount]

Dear [Client Name]:

This is a formal demand for payment of invoice #[number] issued on [date], in the amount of [amount]. Payment was due on [date].

Despite multiple requests, as of [today date], this invoice remains unpaid and is [number] days overdue.

I am demanding full payment of [amount] within 10 days of this letter. If payment is not received by [specific date], I will pursue all available remedies including:

Collection agency referral
Small claims court action
Credit agency reporting
Legal action to recover collection costs

Please contact me by [date] to confirm payment or arrange a payment plan.

[Your Name] [Address] [Phone] [Email]

Why this works: It’s a legal notice, not a conversation. Clients understand the seriousness and will pay or propose a real plan.

Script: Payment Plan Offer (Day 20-30)

If the client is genuinely broke, offer a plan before escalating:

“I understand cash flow is tight right now. Here’s what I’m willing to do: 50% by [date], 25% by [date], 25% by [date]. In exchange, I need it in writing. If any payment is missed, I escalate to collections immediately. Do we have a deal?”

Get this in writing. Email confirmation counts. This converts a hopeless situation into a recovery plan.

Script: Collection Agency Follow-Up (Day 45+)

If you’ve referred to collections, your communication stops. The agency handles it. But if you’re doing this yourself before collections:

“I’ve given you reasonable opportunities to pay invoice #[number]. I’m now filing a claim in small claims court for [amount] plus filing costs. If you’d like to settle before court, contact me by [date].”

This is your final conversation before legal action. Be serious. Be brief. No negotiation at this point.