Formal Demand Letter Template

[Your Name]
[Your Address]
[Your City, Postal Code]
[Your Email Address]
[Your Phone Number]
[Date]

[Recipient Name]
[Recipient Address]
[Recipient City, Postal Code]

**FORMAL DEMAND FOR PAYMENT**

**Re: Overdue Invoice {{invoice_number}} — Final Notice Before Escalation**

Dear {{customer_name}},

This letter serves as formal notice that invoice {{invoice_number}}, issued on {{invoice_date}}, in the amount of {{amount}}, remains unpaid as of [today's date].

**Invoice Details**
- Invoice Number: {{invoice_number}}
- Original Due Date: {{due_date}}
- Days Overdue: {{days_overdue}}
- Amount Due: {{amount}}
- Current Date: [today's date]

Despite multiple previous requests for payment (dated [dates of previous reminders]), no payment has been received and no satisfactory explanation or repayment arrangement has been agreed.

**Contractual Basis**
This invoice arises under the terms agreed between the parties on [contract/order date]. Payment was due within [agreed terms], and you have failed to meet this obligation.

**Formal Demand**
I hereby formally demand payment of the full outstanding amount of **{{amount}}** within **7 calendar days** of the date of this letter (by {{payment_deadline}}).

Payment should be made to:
[Your business name]
[Payment details: bank account / payment method]

If payment in full is not received by the deadline, or if you do not contact me within this period to agree a satisfactory repayment plan, I will escalate this matter without further notice. This may result in:

1. Referral to a collections agency, which may add recovery costs to the balance owed
2. Statutory interest and debt recovery fees (where applicable under law)
3. Legal proceedings to recover the debt
4. Impact to your credit rating

**Right to Dispute**
If you dispute this invoice or have a valid reason for non-payment, you must notify me in writing within 5 days, providing supporting documentation. Failure to respond will be taken as acceptance of the debt.

**Communication**
If you need to discuss this matter or propose a repayment arrangement, please contact me immediately:
[Your phone number]
[Your email address]

I prefer to resolve this matter directly and amicably. However, if payment or contact is not received within the stated deadline, escalation will proceed automatically.

Yours sincerely,

{{sender_name}}
{{sender_title}}
{{company_name}}

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*This letter is written without prejudice and in a good-faith attempt to resolve an overdue account. It should be retained as evidence of demand and proof of payment status.*