A demand letter is a formal document used to request payment or action from an individual or organization. It is typically the final step before taking legal action. The letter should clearly state the amount owed, the reason for the demand, and the consequences of not paying. It should also include a deadline for payment.

Typically, the letter should be sent via certified mail, return receipt requested, to ensure proof of delivery. If the recipient does not respond or fails to pay, the sender may choose to pursue legal action. This could include filing a lawsuit, seeking a court order, or garnishing wages. Sending this type of letter is an important step in the legal process and should be taken seriously.