VAT on business energy isn’t always straightforward. You might assume there’s one standard rate, but in reality it depends on how your business uses energy and how much you consume.

Understanding how it works can help you spot if you’re being charged correctly and avoid paying more than you need to.

Here’s how to make sense of it.

What VAT rate do businesses pay on energy?

Most businesses pay VAT at the standard rate of 20 percent on gas and electricity.

This applies if your energy use is considered business or commercial use. For many companies, this is the default rate you’ll see on your bill.

But there are situations where a lower rate applies, which is where things can get confusing.

When does the reduced 5 percent VAT rate apply?

Some businesses qualify for a reduced VAT rate of 5 percent.

This usually applies if your energy use is low. The general thresholds are:

• Electricity use of less than 33 kilowatt hours per day
• Gas use of less than 145 kilowatt hours per day

If your business falls below these levels, your supplier may apply the lower rate automatically.

The reduced rate can also apply to certain types of organisations, such as charities or non-profit activities, depending on how the energy is used.

What is mixed use and how does it affect VAT?

Some properties are used for both business and personal purposes. For example, if you run a business from home.

In these cases, VAT may be split between the standard rate and the reduced rate.

This is known as mixed use. You or your supplier estimate how much of the energy is used for business versus personal use, and VAT is applied accordingly.

It’s important to get this right, as it affects how much VAT you’re charged overall.

How to check if you’re paying the right VAT

The easiest place to start is your energy bill.

Look for the VAT section and check what rate is being applied. If you’re unsure, compare your usage against the low usage thresholds or consider how your property is being used.

If something doesn’t look right, you can contact your supplier and ask them to review your account.

In some cases, you may need to fill in a declaration form to confirm your eligibility for a reduced rate.

Can you claim VAT back on business energy?

If your business is VAT registered, you can usually reclaim the VAT you pay on energy used for business purposes.

This is done through your regular VAT return.

If your energy use is mixed, you’ll only be able to claim back the business portion, not the personal use.

Keeping clear records helps make this process smoother and avoids issues later on.

Why VAT on energy is worth understanding

VAT might seem like a small detail, but it can make a noticeable difference to your overall energy costs.

If you’re on the wrong rate, you could be paying more than necessary. And because energy is an ongoing expense, those extra costs can add up over time.

Taking a few minutes to check your rate and understand how it applies to your business can help you stay in control of your spending.