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How to Send an Invoice and Get Paid Faster

Read our guide on how and when to send an invoice and how to follow up when invoices are overdue. Find invoice email templates to get paid faster.

8 min read

How to send an invoice and get paid faster: A step-by-step guide

Sending invoices to customers is one of the most important jobs for any business. However, despite being critical to the effective running of a business, invoicing is one of the tasks business owners complain about the most. For many businesses, there just aren’t enough hours in the day, and that can lead to payment delays.

In this guide, we’re going to provide best practice advice for getting your invoices paid faster. That includes when to send an invoice, what you should include in your invoice email and how to deal with customers who don’t pay your invoices on time.

How to invoice

An invoice is a formal request for payment that businesses send to customers and clients, usually after goods or services have been provided.

The invoice should outline the details of the transaction, including the goods delivered, the amount owed and how and when the payment should be made. Here’s a comprehensive guide to writing an invoice

The process of writing and sending invoices to customers can be time-consuming for freelancers and business owners, but the good news is that we are here to help. You can use our invoicing software to create professional invoices instantly. You can also track the invoice from delivery through to payment to help you get paid faster.

When to send an invoice

Choosing when to send an invoice comes down to the type of service you offer, your relationship with the customer and the financial demands on your business.

Invoices are usually issued at some point after the work has been completed. However, some businesses also invoice customers before delivering a service, either for part-payment or payment in full.

So which is best for your business?

Sending an invoice before providing a service

There are times when it makes sense to invoice a customer for payment before the work is done.

Requesting payment in advance may be appropriate in the following scenarios:

  • You have to buy materials to complete a job and you need payment upfront to do so.

  • You’re working on a long-term project and being paid before each milestone is reached will help to maintain your cash flow.

  • If cash flow is tight, you might ask for part-payment before starting a project. That can provide security for the vendor and still leave the client with wiggle room to negotiate changes or discounts if they’re not happy with the work.

  • If the client has a history of not paying on time, it makes a lot of sense to ask for payment upfront. That removes the risk of late payments or nonpayment and still allows you to accept the work.

If you do intend to send an invoice before you’ve completed the work, there are a few things to bear in mind:

  1. Always communicate your intention to ask for payment upfront clearly to the customer and make sure they know how much you’ll expect and why. 

  2. Create a professional quote that itemises all the products and services they’re ordering and the cost of each. 

  3. Offer a small discount to incentivise and thank customers who agree to pay in full upfront.

  4. Always explain the steps you’ll take to provide complete customer satisfaction. This can be a concern for customers who agree to pay in advance.

Sending an invoice after providing a service

Sending an invoice to a customer after the work has been done is the most common method of requesting payment. There are three options available to you if this is the route you choose to take:

  1. You can invoice as soon as the job is done. This is common for one-off, small scale jobs such as plumbing and is an effective way to get paid more quickly.

  2. A lot of service providers send an invoice within 48 hours of the work being done. That gives the client time to make sure they’re 100% happy with the work before you request payment.

  3. Companies with ongoing commercial contracts with their clients tend to invoice them every month. That can help to reduce the time spent issuing and processing invoices, leads to consistent payments and ensures more predictable cash flow.

How to write an invoice email

These days, most invoices are sent to customers via email. Writing a quick email with an attached invoice is a straightforward process and something you can do by following these simple tips.

1. Include the most important information in the subject line

You should include details such as the invoice number and the payment due date in the subject line to make it immediately obvious what the email is about. That way, your invoice won’t get overlooked.

2. Speed up the process with an email template

If you invoice a lot, creating an email template that you can change the details of will allow you to send invoices quickly and easily.

3. Include the invoice as an attachment

Your invoice should contain all the necessary information the customer will need to make the payment and be attached to the email as a downloadable PDF. That will allow the customer to save it, print it or upload it to their accounting software, but - most importantly - not edit it.

4. Follow up on your invoice

It’s always worth a quick phone call to check that your invoice has been received and is with the right person or department.

Here’s a simple invoice email template that you can use:

Subject: Invoice [invoice number] for [service/product] due [date]

Hi [Recipient’s Name],

I hope you’re well. Please find invoice [invoice number] attached for the recent [product/service]. The payment is due on [date]. Please do get in touch if you have any questions. 

Many thanks,

[Sender’s Name]

Overdue invoice payment emails

Unfortunately, it’s not always a case of sending out the invoice and sitting back to wait for the payment to be made. Sometimes invoices are missed or sent to the wrong person by mistake. Some customers also consistently pay invoices late, which is an increasingly common problem for many businesses.

If an invoice hasn’t been paid on time, here are a few email templates you can use:

1. Email reminder on the day a payment is due

Many companies schedule invoice payments on the due date, so there’s a good chance the payment will be made on time - but it never hurts to provide a polite reminder.

Subject: Payment due for invoice [invoice number]

Hi [Recipient’s Name],

This is just a quick message to remind you that invoice [invoice number], which I sent on [date], is due for payment today. All the payment details are specified in the invoice, which I’ve reattached for your reference.

If you have any questions, please let me know.  

Many thanks,

[Sender’s Name]

2. Email reminder one week after a payment was due

The invoice is now overdue, so it’s worth firming up your tone a little. However, you should still be polite and provide details about the invoice, including the invoice number and the due date, to help the customer find the invoice and make the payment.

Subject: Payment of invoice [invoice number] is one week overdue

Hi [Recipient’s Name],

My records show that the payment for invoice [invoice number], due on [date], has not yet been made. Could you please check this at your end and let me know when the invoice will be paid. If you’ve lost the invoice, please let me know and I’ll happily send you another copy. 

Many thanks,

[Sender’s Name]

3. Email reminder one month after payment was due

Now things are getting serious. If a customer has still not made a payment one month after it was due and has not been in contact to explain why, you could have a problem. You should take a tougher stance but still keep it professional, despite the frustration you’re likely to feel.

Subject: Final payment reminder for invoice [invoice number]

Hi [Recipient’s Name],

I’m yet to receive payment for invoice [invoice number], which was due on [date]. 

Please be aware that as per my terms, I charge additional interest of [rate of interest] on payments that are more than 30 days past their due date. That interest will be added to the outstanding amount from today.

Please arrange for payment of [invoice amount] to be made immediately or contact me now if you have any questions. 

Thanks,[Sender’s Name]

On the road to faster payments

If you follow the invoicing tips in this guide, make use of the email templates we’ve provided and consider using our invoicing software, we’re confident that your invoices will be sent and paid more quickly. You’ll also have a consistent invoicing process in place so your customers and clients will know exactly what to expect when they work with you.

Get paid on time

Sending professional invoices out on time means you get paid faster. Discover how QuickBooks makes all the difference.

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Invest in your small business

We hope you’ve found this article on how to send an invoice and the accompanying email templates useful. QuickBooks is here to help you and your small business grow - check out our blog to learn even more about how you can help your business succeed.