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What interest can I charge on late or unpaid invoice payments?

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Want to know what interest you can charge on late payments when working as a freelancer, contractor, or small business owner? This article explains what the rules are, and a few ways to get your money from difficult clients.

Get paid what you’re owed

Cash flow is a very personal issue for freelancers, contractors and small businesses, and can sometimes mean the difference between making and missing this month’s rent, or even being able to afford to eat. Your clients might not give two hoots about your financial concerns, but that doesn’t mean they don’t matter.

The best way to avoid late payments is to make sure you invoice promptly and give your clients all the information they need to pay you. Our article on how to invoice your clients has all the information you need, plus we've got you covered with an extensive range of invoice templates to help you make a start.. The current law in the UK allows you to take action on unpaid invoices, allowing you to include additional charges in the amount you claim back from a tardy client.

It’s best practice to agree to strict payment deadlines (as well as any late payment penalties) before you begin working for a new client. However, depending on the nature of your business, you might not always do so.

It’s common practice to set the payment deadline as 30 days from the date the contract is completed (meaning the day you deliver the goods or services you were hired for), even if no payment schedule is decided upon before work begins.

That means there should be no doubt over when your invoice is due to be settled unless you agree to longer terms upfront. Regardless, there’s no reason you should be forced into accepting your client’s payment terms retrospectively if they’re too long to be practical.

Chasing an unpaid invoice

If, in spite of all your efforts, your clients are still late laying, you’ll need to give them a gentle nudge. Sending a reminder can help, but try to keep it civil, after all there may be more work from them in the future.

Make sure that your invoice gets to the right person at the company, and remind them of the agreed deadlines. If you need any more help, our article “How do you chase an unpaid invoice?” has more tips.

If this still doesn’t help, then you need to consider your next steps. It’s possible to charge interest and additional cost on late invoices. 

What additional costs can I claim?

There are three costs you are allowed to add to overdue invoices.

Statutory interest at 8% above the Bank of England base rate can be added from either the most recent of 31st December or 30th June.

For example, if you’re in the first six months of the year and the base rate on 30th June was 1.25%, you can charge interest at 9.25% from the day the invoice became overdue. You’ll need to send a new invoice showing the amount you are adding.

For reference, the Bank of England base rate was increased to 1.25% in June 2022, and remains so at time of writing. You can confirm the current rate here.

Fixed fees can also be added to the total amount owed:

  • £40 for debts up to £999.99
  • £70 from £1,000 to £9,999.99
  • £100 for £10,000 and above.

If the cost of chasing your payment is greater than the fixed fee you’re eligible to claim, you can also claim back the extra expense as ‘reasonable costs’, which should mean you are never left out of pocket for chasing a payment.

The fees for debt collection (a service Crunch can provide – see section below) are considered reasonable costs.

Still having trouble getting paid?

If you’re struggling with a non-paying client, download our series of late payment reminders and get that invoice paid. Choose from ‘polite nudge’, ‘firm reminder’ or ‘final notice’.

You can also contact Crunch Collections to recover unpaid invoices cost-effectively, without alienating your clients. Our standard fees for debt collection in the UK depend on how overdue your invoice is, starting from just 5%.

There are no up-front or hidden fees – you only pay once we’ve retrieved the money you’re owed.

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Tom West
Community and Social Manager
Updated on
August 18, 2022

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