Invoice automation: what to automate and how to start
What invoice automation means in practice
Invoice automation is a set of rules your software follows to issue, send, track and store invoices without your involvement each time. You decide once what should happen and when; after that, you deal only with exceptions.
The benefits:
fewer errors – names, VAT numbers and bank details are not retyped,
faster payment – the invoice goes out as soon as the work is done,
tidy records – every invoice has its number, date and place in the archive.
Automation does not change the rules: a software-issued invoice must meet the same requirements as one you type yourself.
What is worth automating
Start with tasks that repeat every month in the same form – the biggest saving at the lowest risk.
1. Recurring invoices
Retainers, subscriptions, maintenance contracts. You set the invoice up once; the software issues it at the chosen interval and, if you wish, emails it to your customer. See how to set up recurring invoices for regular clients.
2. Sending invoices
The invoice leaves by email, with a pre-written message, as soon as it is issued.
3. Payment details
Your sort code, account number and a payment reference – usually the invoice number – appear on every invoice automatically.
4. Payment tracking and reminders
Invoices are marked paid or overdue, and a reminder can go out once the due date passes. Deciding who receives one is best left to you: with a key client, a phone call often works better. Our tips for chasing up unpaid invoices cover wording and timing.
5. Records for your accountant
An export your accountant’s software can import replaces sending PDFs one by one. If you are VAT-registered, it also fits Making Tax Digital for VAT, which requires VAT records to be kept digitally and VAT Returns to be filed through compatible software.
6. Storage
A searchable electronic archive. If HMRC asks for a document, you find it in minutes.
Where to start
Count the invoices you issue each month to the same customer with the same items. If they are more than half, begin with recurring invoices.
What stays with you
Checking the first invoice – for each new template or customer, check the customer’s details, VAT rate and tax point (the date the supply takes place for VAT).
Your customer’s agreement – HMRC allows electronic VAT invoices only if the customer agrees to receive them; a clause in your terms or a confirming email is a simple record.
Changed terms – update the template before the next invoice is issued from it.
Unmatched payments – a payment with the wrong reference or amount still needs you to assign it.
A design studio with three retainers
Retainers are issued on the last day of each month and emailed automatically.
Every invoice carries the studio’s bank details and the invoice number as payment reference.
Overdue invoices are flagged the day after the due date.
Only one-off projects are still invoiced manually.
How to start: five steps
Map your process. Note how an invoice comes about today and mark the steps that repeat unchanged.
Clean up your data. Check customer details (legal name, address, VAT number where applicable, invoice email) and use one numbering sequence. Automation only spreads bad data faster.
Choose a tool that fits. A sole trader is well served by an online invoicing app; a business issuing dozens of invoices a day needs links to its online shop or accounting system.
Launch one area and watch it for a month. Check that invoices are issued on the right day, at the right VAT rate, to the right people.
Add steps gradually. Once that runs smoothly, switch on automatic emailing, then reminders and, finally, the link to your accounts.
What to watch out for
Automation does not extend legal deadlines or shift responsibility for the invoice.
Rules software does not change
If you supply another VAT-registered business, you must normally issue a VAT invoice within 30 days of the tax point.
Keep VAT records, including invoices issued and received, for at least 6 years. For electronic invoices, also keep the means of showing they are authentic, unaltered and legible.
If an invoice shows too much VAT, you must account for that amount unless you correct it with a credit note.
Review your set-up regularly as well: a new VAT rate, a customer’s new address or an ended contract all mean updating the template first.
Moving away from paper?
See what HMRC requires in Paper or electronic invoices: pros, cons and the rules.
FAQ
Is it worth it for a sole trader with a few invoices a month?
Yes, if they repeat. Three monthly retainers mean 36 invoices a year typed by hand; a recurring invoice takes minutes to set up once.
Does my customer have to agree to electronic invoices?
Yes. HMRC requires the customer’s agreement to receive VAT invoices electronically.
Do automated invoices have different deadlines?
No. A VAT invoice to a VAT-registered customer is normally due within 30 days of the tax point and must be kept for at least 6 years.
What if an automated invoice contains a mistake?
Correct it as you would a manual one, usually with a credit note referring to the original invoice.
Is Making Tax Digital the same as invoice automation?
No. MTD for VAT covers digital VAT records and filing VAT Returns through compatible software. Automated invoicing makes those records easier to keep, but MTD does not require it.
