Change of Tenancy (COT)



What is a Change of Tenancy (COT)?

The process of moving into or out of a business premises where responsibility of the energy supply changes is known as a Change of Tenancy or COT.

There are two types of COTs; incoming and outgoing. An incoming COT is when you take over a new supply. For example, when you move into a new office or building. An outgoing COT relates to when you leave a premise, and you need to end the contract with a supplier and return to the attention of the landlord or new tenant.

Why do you need to submit a COT?

It’s important you submit this information as early as possible as you may be automatically put on to an out of contract tariff if you don’t, which are usually higher. Once a COT has been confirmed, we will be able to arrange an energy contract on your behalf.

What we will need from you

Depending on the supplier, some will ask for additional supporting information. For example, we will need:

  • Address of the Property
  • Date of COT
  • The opening /closing meter readings
  • The MPAN or MPR for the meter
  • The Meter Serial Number
  • Details of the outgoing or new occupier / owner with contact name, number and forwarding address

Official documentation confirming the exchange is also required – for example one of the below:

  • Solicitors letter proving date of changeover (including solicitor details)
  • Tenancy and/or letting agreement
  • Landlord details, address and telephone number (for a validation check)
  • Council Tax declaration letter and/or form
  • Land Registry check

A photo of the meter is a very useful addition in processing a COT, with a clear view of the meter serial number and meter reads.

How does our process work?

To submit a COT on your behalf we will need you to fill in one of our forms and provide official documentation or evidence to support the submission. Once the form has been completed and we have received the evidence we will then submit this to your supplier for processing.

On notification of the requirement for a COT we open an internal ticket. We also update systems to highlight a COT is in progress for this supply and whether incoming or outgoing, so the status is clear for any tender exercises.

When the supplier advises the COT has been processed, we confirm the date and that a final invoice closing the account will be sent to you. We then update the information on our system and advise you of the successful completion.

We manage the whole process from start to finish meaning our clients are not exposed to slow supplier turnarounds and the frustrating time on hold waiting to speak to the relevant team.

How long does it take?

In most cases a COT should be actioned within 28 days. However, if after 10 working days we have not heard from the supplier, we will follow up with a call to the relevant department to chase the progress.

Our Core Values


How we do anything is how we do everything

Everyone’s experience of Indigo Swan should be the same – exceptional. This value is about delivering quality, thoughtful work every time, no matter how big or small the task is. Every piece of work will be given our full attention.



We’ve always been ambassadors for innovation and creativity, and it’s what sets us apart. Our Swans are intelligent, inventive and brave and we will always listen to ideas on how to make our company even better. We won’t be limited by what we currently know and do, and when seeking solutions to our challenges we’ll forget ‘what is’ and embrace ‘what if’.

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We recognise each Swan for their own amazing qualities and character, and acknowledge that this diversity contributes to our culture, which we cherish. As a company, we’re 100% independent from supplier-imposed targets, so we’ll never encourage our clients into making decisions that are anything less than what’s best for them.

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