Should I refund an annual renewal the customer forgot about?

Many SaaS companies refund if the customer asks within a few days and has not used the product since. Decide a rule and apply it consistently.

How do I explain a prorated charge?

Give the dates and the maths: what they were charged for, from which date to which, and why. One sentence with real numbers beats a paragraph of theory.

Can I send invoices automatically?

Most billing systems email an invoice on every charge. Point customers to the billing settings page where they can download past ones.

SaaS billing questions: reply templates

Most SaaS billing questions are about a charge the customer did not expect: an annual renewal, a prorated upgrade, an extra seat. These replies name the charge, explain it in one line and link the invoice, so the customer does not need to reply again.

Updated 11 October 2026

Subject: Your {workspace} charge on {billing_date}

Hi {first_name}, Thanks for checking. The {billing_amount} charge on {billing_date} is for {charge_reason}. You're currently on the {plan_name} plan. Here's the invoice with the full breakdown: {invoice_url} If that's not what you expected, or you'd like to change plan, just reply and I'll sort it. Best wishes, {agent_first_name} {workspace}

Subject: Your invoice of {billing_date}

Dear {first_name}, Thank you for your query about your recent payment. The charge of {billing_amount} taken on {billing_date} relates to {charge_reason}. Your account is on the {plan_name} plan. The invoice, including a line-by-line breakdown, is available here: {invoice_url} You can view past invoices and change your plan or payment method at any time in your billing settings. Please let us know if you have any further questions. Kind regards, {agent_first_name} {workspace}

Subject: Your {billing_amount} charge

Hi {first_name}, The {billing_amount} on {billing_date} is {charge_reason}. Invoice here: {invoice_url} Want to change plan? Just reply. {agent_first_name} {workspace}

{first_name}Filled by Hobson: The customer's first name.
{billing_amount}: The amount charged, for example £290.00.
{billing_date}: The date of the charge.
{charge_reason}: One line explaining the charge, for example "your annual renewal" or "two extra seats added on 4 March, prorated to your renewal date".
{plan_name}: The customer's current plan.
{invoice_url}: A link to the invoice in your billing system.
{agent_first_name}Filled by Hobson: The first name of the teammate sending the reply.
{workspace}Filled by Hobson: Your company or product name.

When to use it

A customer asks what a charge on their card is for.
Someone upgraded mid-month and does not understand a prorated amount.
A customer wants an invoice, a refund on a renewal or to change their plan.

How to use it

1
Find the exact charge
Match the amount and date to the invoice in your billing system before replying.
2
Explain in one line
Say what the charge covers in plain words. Proration needs the dates in it.
3
Link, do not attach
Link the hosted invoice so the customer can download it and see their other invoices.

Common mistakes

Explaining proration in general terms instead of with the customer’s own dates and seats.
Refusing a refund on an annual renewal the customer forgot about without checking whether they have used the product since.
Making a plan change by hand and forgetting to confirm the new price and when it takes effect.

What they usually ask next

If the charge came after a bug or outage, the customer will often raise that next. Bug report acknowledgement

Related templates

All saas support templates