1. Payment History: Include when multiple related payments need to be documented or for recurring payment confirmation

2. Tax Information: Add when the letter is specifically required for tax purposes, including relevant tax registration numbers

3. Purpose Statement: Include when the letter needs to specify why the proof of payment is being issued

4. Account Status: Add when relevant to confirm that the account is current or paid in full

5. Contact Information: Include additional contact details for verification purposes when required by recipient

6. Legal Disclaimer: Add when necessary to limit liability or specify the scope of the confirmation

1. Payment Receipt Copy: Attached copy of original payment receipt or transaction confirmation

2. Transaction Statement: Detailed statement showing the payment transaction within the account history

3. Invoice Copy: Copy of the original invoice relating to the payment

4. Payment Method Verification: Documentation confirming the payment method used (e.g., cleared check copy, wire transfer confirmation)