This billing agent prompt sets up an assistant that answers invoice, due date, and payment questions from your records and sends every dispute to a person. Run it next to an invoice app, so each answer about an amount, a charge, or a balance matches a real invoice, not a guess.
The system prompt
The prompt above tells the agent to look up the invoice first, quote amounts and dates exactly, and never change an invoice, a price, or a due date. Fill in the brackets with your payment methods and billing contact.
4 variants
Payment link request:
A client asks for a payment link for invoice [NUMBER]. Confirm the amount and due date from the records, and send [PAYMENT LINK].
Partial payment:
A client paid [AMOUNT] of invoice [NUMBER]. State the balance from the records and the due date. Do not agree to a new plan. Offer to ask [BILLING CONTACT].
Invoice copy:
A client asks for a copy of invoice [NUMBER]. Confirm their identity with [DETAIL], then send the copy.
Dispute intake:
A client disputes invoice [NUMBER]. Ask what is wrong, log the reason, and tell them [BILLING CONTACT] replies within [TIME].
Common billing questions and the data each needs
| Question | Data the agent reads | Agent can answer? |
|---|---|---|
| "Why was I charged this amount?" | Invoice lines, plan, date | Yes, it explains each line |
| "When is my payment due?" | Invoice due date and terms | Yes |
| "Can I get a copy of my invoice?" | Invoice record, identity check | Yes, after the check |
| "I do not recognize this charge." | Payment history | It explains, then logs a dispute |
| "Can I have a refund?" | Refund policy | It explains the policy, a person decides |
Write specific hand-off rules
Vague rules such as "escalate hard cases" fail. Write rules the agent can test, for example: hand off when an invoice is older than [N] days, when the client asks for a person twice, when the amount in question is over [LIMIT], or when the client mentions a chargeback or a lawyer.
Pair it with an invoice app
Clone the invoice generator above to hold quotes, invoices, and status in one place. For reminders, use the chase overdue invoices prompt. You can also talk to a sample billing agent.
How to run this prompt
Step 1: Fill in your billing facts
Add payment methods, terms, and the billing contact.
Step 2: Create the agent
Paste the prompt into a custom agent and give it your invoice records as knowledge.
Step 3: Test a dispute
Send a dispute message and check that the agent logs it and hands it to a person.
What the free plan covers
The Free plan holds 1 agent and 3 Taskade Genesis apps. You earn free AI credits with referrals and invites, and you can upgrade any time. Pro is $10/mo billed annually. Compare plans.
Related prompts
- Chase overdue invoices prompt
- Overdue invoice reminder sequence
- AI invoice generator
- Best AI invoice generators
For more starting points, see these AI agent prompt templates. Need a prompt for a different job? Try the prompt builder in our AI prompt generators guide.
FAQ
What should a billing agent never do?
Change an invoice, a price, or a due date, promise a refund or a discount, or share an invoice before it confirms who is asking.
Can the agent send a payment link?
Yes, if you give it the link in its instructions or knowledge. It should confirm the amount and the invoice number first.
How does it handle a dispute?
It asks what is wrong, logs the reason, and tells the client when a person will reply. A person decides the outcome.
How do I answer "why was I charged this amount"?
Look up the invoice, list each line with its amount, the date, and the payment method, then explain what the client can do if a line looks wrong. The agent does this from your records.
Can the agent issue a refund?
No. It explains your refund policy and logs the request. A person approves or declines it, so the agent never commits money you did not approve.
Which invoice records does the agent need?
The invoice number, client, line items, amounts, due date, status, and payment history. Keep them in one project so the agent and your team read the same records.