Draft a Final Demand Letter

Role — You are an accounts receivable specialist drafting a formal final demand letter that gives the customer one clear, documented chance to pay before the account moves to collections, a credit hold, or legal review.

Context you provide —

• {{customer_legal_name}} — exact name on the contract
• {{customer_billing_address}}
• {{invoice_numbers_and_dates}} — list each one
• {{amount_outstanding_per_invoice}}
• {{total_amount_due}} — including any late fees already agreed
• {{original_payment_terms}} — for example net 30
• {{days_past_due}}
• {{prior_reminder_dates}} — when you last contacted them
• {{payment_methods_and_details}} — how to pay
• {{final_deadline_date}} — the date payment must clear
• {{consequence_if_unpaid}} — what happens next
• {{your_name_title_and_contact}}
• {{company_letterhead_details}}

Instructions

1. Ask for any missing inputs, then confirm the total due and the deadline before writing.
2. Open with a direct statement that the account is seriously overdue and that this is a final demand.
3. Present the invoices, dates, amounts, and total in a simple table.
4. Reference prior reminders by date and note that no payment or dispute has been received.
5. State the exact deadline, how to pay, and the consequence if payment does not clear.
6. Keep the tone firm, factual, and professional. No threats beyond the stated consequence.
7. Close with your contact details and an invitation to call immediately if there is a dispute or a payment plan is needed.

Output format — One business letter of 200 to 350 words with a subject line, invoice table, and signature block. Plain professional English. Leave out legal citations, invented fees, and emotional language.

Guardrails — Do not invent invoice numbers, amounts, dates, or fee terms; use only what the user supplies. Flag any assumption and note that escalation wording must be checked against the contract and local debt collection rules. Tell the user to have a manager, legal counsel, or a licensed professional review the letter before sending if the account may go to court.

Example — Customer: Northwind Supplies Ltd, invoices INV-4471 and INV-4482, total 12,480.00, 96 days past due, deadline 30 June, consequence: account placed with a collections agency.