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How to Write a Follow-Up Email for Unpaid Brand Invoices

13 Oct 2026 · 6 min read

Illustration for the article "How to Write a Follow-Up Email for Unpaid Brand Invoices"

Receiving payment for your creative work should be straightforward, but sometimes brands fall behind. When an invoice remains unpaid past its due date, a well-crafted follow-up email is your next step. This isn't about being confrontational; it's about clear communication and professional persistence.

Your goal is to gently remind the brand, provide all necessary information, and ensure the payment process can proceed without further delays. This approach helps maintain a positive relationship while securing the compensation you are owed.

Understanding how to structure these emails and what tone to adopt can significantly impact their effectiveness. It ensures you retrieve your funds efficiently and professionally.

The Importance of Prompt Follow-Up

Delaying your follow-up can inadvertently signal that payment isn't a high priority for you, potentially leading to further delays. A prompt, polite reminder shows you are attentive to your business operations and expect payment within agreed terms. This also helps you identify any issues early, such as incorrect contact details or processing errors on their end, allowing for quicker resolution.

Crafting Your Initial Reminder Email (1-3 Days Post-Due Date)

Your first follow-up should be a soft reminder, assuming an oversight rather than an intentional delay. Keep it brief, polite, and direct.

  • Subject Line: Clear and concise, for example: "Invoice [Invoice Number] - Gentle Reminder" or "Following Up: Invoice [Invoice Number] for Project [Project Name]".
  • Body:

State the purpose of your email immediately. Reference the invoice number, due date, and the amount due. Re-attach the original invoice for their convenience. Offer to answer any questions they might have. * Maintain a polite, professional tone.

Example:

Subject: Invoice #12345 - Gentle Reminder

Dear [Contact Name],

I hope this email finds you well.

This is a friendly reminder regarding Invoice #12345 for [Project Name], which was due on [Original Due Date]. The total amount due is [Amount].

I've re-attached the invoice for your convenience. Please let me know if you require any further information or if there are any issues with processing this payment.

Thank you, [Your Name]

The Second Follow-Up: Adding Urgency (7-10 Days Post-Due Date)

If your initial reminder goes unanswered, a second email is necessary. This communication can be slightly more direct while still maintaining professionalism.

  • Subject Line: "Follow Up: Overdue Invoice [Invoice Number]" or "Action Required: Overdue Payment for Invoice [Invoice Number]".
  • Body:

Refer back to your previous reminder and the original invoice. Clearly state the invoice is now overdue and by how many days. Reiterate the amount due and provide payment instructions again. Ask if there are any problems preventing payment or if you can assist. * Mention potential next steps if payment isn't received, such as late fees if applicable per your contract.

Example:

Subject: Action Required: Overdue Payment for Invoice #12345

Dear [Contact Name],

I am writing to follow up on my previous email regarding Invoice #12345 for [Project Name]. This invoice, for [Amount], was due on [Original Due Date] and is now [Number] days overdue.

I've attached the invoice again for your reference. Could you please provide an update on the payment status? If there's an issue on your end or if you require any additional details to process this, please let me know so I can help resolve it promptly.

As per our agreement, late payments may be subject to a [percentage]% late fee. I appreciate your immediate attention to this matter.

Best regards, [Your Name]

Escalating the Issue (14-21 Days Post-Due Date)

If two reminders have been ignored, it's time for a firmer approach, often involving a higher-level contact if possible.

  • Subject Line: "URGENT: Overdue Payment - Invoice [Invoice Number]" or "Formal Notice: Overdue Invoice [Invoice Number] for [Amount]".
  • Body:

Clearly state this is a formal notice regarding the overdue payment. Include all pertinent details: invoice number, project, original due date, and current overdue status. Reiterate payment terms, including any late fees and potential consequences like pausing future work or legal action (if that's a viable next step for you). Provide a clear deadline for payment. Consider cc'ing an accounts payable department or a higher-up contact if you have one. Refer to your original contract or agreement. If you are regularly accepting gifting deals, note that these should be clearly defined to avoid payment expectations. You can read more about defining these in our article on Gifting vs. Paid Brand Deals: When to Accept or Decline.

Example:

Subject: URGENT: Overdue Payment - Invoice #12345

Dear [Contact Name],

This is a formal notice concerning Invoice #12345 for [Project Name] totaling [Amount]. This invoice, originally due on [Original Due Date], is now [Number] days overdue, despite two previous reminders sent on [Date of First Reminder] and [Date of Second Reminder].

Your immediate attention to this matter is required. Payment of [Amount + Late Fees, if applicable] is now due. Please provide proof of payment or a clear timeline for when we can expect the funds by [New Specific Date - e.g., 3 business days from now].

If payment is not received by this date, we will be forced to consider further steps as outlined in our agreement, which may include suspension of services, engagement of a collections agency, or legal action.

We value our partnership and hope to resolve this swiftly. Please contact me immediately to discuss this.

Sincerely, [Your Name]

General Best Practices for All Follow-Up Emails

  • Attach the Invoice: Always re-attach the invoice. It saves the brand time and prevents them from claiming they can't find it. You can generate professional invoices using our free brand deal invoice template.
  • Keep Records: Document every communication. Note down dates, times, and responses (or lack thereof). Sponaro helps with this by tracking your deals through their pipeline, allowing you to record payment dates and mark invoices as paid, awaiting, or overdue.
  • Be Specific: Always include the invoice number, amount, and due date. Clarity avoids confusion.
  • Stay Professional: Even when escalating, maintain a calm, business-like tone. Emotional emails are rarely productive.
  • Know Your Contract: Refer to the payment terms and any late payment clauses in your original agreement. This provides leverage and clarity. If you're encountering payment issues, our guide on What to Do When a Brand Doesn't Pay You: A Creator's Late-Payment Guide offers further insights.

When to Consider External Help

If, despite your best efforts, payment remains elusive, you might need to consider external avenues. This could include a collections agency, a legal professional, or small claims court, depending on the amount and jurisdiction. However, these steps are typically reserved for situations where all other communication has failed.

Creating professional invoices is a critical step in ensuring timely payments. You can get started right away by using our free brand deal invoice template to generate and send clear payment requests for your deals. Once sent, Sponaro helps you track the payment status of each invoice, so you always know which deals are awaiting payment, overdue, or paid.