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Non-domestic rates appeals

Challenge your rateable value

Last updated
20 Oct 2026

If you think your current rateable value is wrong, you can ask your local assessor to check it. This is called ‘making a proposal’.

You can make a proposal if you:

  • think information in your valuation is wrong
  • disagree with the assessor's valuation

You’ll need to provide evidence to support your claim.

There is no fee to submit a proposal. You may need to pay for professional advice, such as a rating agent.

After reviewing your proposal, the assessor may:

  • change the valuation in line with the proposal or an agreement you reach with them
  • keep the valuation the same
  • change the valuation in a different way – this may either increase or decrease your rateable value

You must continue paying your non-domestic rates bill while the assessor considers your proposal.

If your proposal is successful, your local council will refund any overpayment. They may also pay interest on it. The interest rate is set each year and is 1% below the Bank of England base rate.

How to submit a proposal

You can submit a proposal:

You must provide:

  • the reasons for your proposal
  • evidence to support those reasons
  • a statement explaining how the evidence supports your case

Proposal deadlines

The deadline to make your proposal depends on why you’re challenging your rateable value.

Revaluation

If you disagree with your revaluation notice, you must submit your proposal by whichever is later:

  • 4 months after the date on your revaluation notice
  • 31 July 2026

New owners and occupiers

If you recently bought or rented the property, you must submit your proposal within 4 months of becoming the owner or tenant.

Material changes

It there’s been a material change to your property, you can submit a proposal until 4 months after the next valuation roll takes effect.

For the 2026 revaluation, this deadline is 31 July 2029 as the next revaluation is on 1 April 2029.

Errors

You can submit a proposal if there’s an error in the valuation roll.

You must do this while the valuation roll is in place. For the 2026 revaluation, the deadline is 31 March 2029.

What happens after you submit a proposal

The assessor will issue a statement responding to your proposal within 56 days. They’ll either:

  • confirm they have all the information they need
  • ask for more information

You’ll have 28 days to respond to the assessor's statement. You can normally only provide new information at this stage. This means information that did not exist when you submitted your proposal. You can also share information that existed, but the assessor can refuse it.

The assessor will also set a Proposal Determination Date (PDD) in their statement. This is the date by which they must issue their decision. They must give you at least 70 days’ notice of this date.

If your case is urgent, you can ask them to consider it sooner.

Deadline for the assessor to make a decision

The deadline for the assessor to make a decision on your proposal is whichever is the latest:

  • 30 September 2028
  • 30 September in the tax year after the one in which you made your proposal
  • 12 months after the date you submitted your proposal to the assessor

This is the last possible date the assessor can set as the PDD.

If you change your mind

If you change your mind about your proposal, you can withdraw it before the assessor makes a decision. You must contact the assessor to let them know.

If you disagree with the assessor’s decision

If you disagree with the outcome of your proposal, you can usually make an appeal.

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