A quarter of households in England and Wales who challenged their council tax last year successfully secured lower bills for the future, according to new data from the Valuation Office Agency (VOA).
Of the 49,940 cases put forward in 2021-22, 13,430 successfully had their property moved to a lower council tax band.
With energy and food prices continuing to rise steeply amid record-breaking inflation, it will be welcome news to those people who should also receive refunds for the tax that they have overpaid.
However, it's worth noting that 50 households saw their bills increase - representing just 0.1% of all appeals. This is uncommon, but it is worth taking into account if you're considering making an appeal. The majority of cases (29,100) were unchanged.
Here, Which? explains how you can apply for a council tax refund or reduction, and how to get help if you can't pay your bill.
If you think your property has been placed in the wrong council tax band, you'll need to contact the VOA in England and Wales, or the Scottish Assessors Association (SAA) if the property is in Scotland.
To make an appeal, you'll either need to show proof that the property was put into the wrong band when it was first assessed, or that changes to the property since its valuation mean it needs to be assessed again.
Requests for a new assessment will be considered for the following reasons:
Before you make an appeal for any of the reasons listed above, you should complete the following steps to get a gauge on whether your property might be in the wrong council tax band.
If properties in your postcode or street are similar to yours, you should generally be in the same council tax band. If you know your neighbours well enough to ask, it's worth seeing how much council tax they pay, to find out whether they're in a different band to you.
You could also check to see how much council tax other people pay in your area by checking the VOA or SAA websites.
Council tax bands are based on what the value of the property would have been in April 1991 if it's in England and Scotland, or April 1993 in Wales.
In order to challenge your council tax band, you'll need to know what the property's value would have been on that date - even if it hadn't yet been built.
You won't be able to use these figures as evidence that the property is in the wrong council tax band, but it could help inform your decision of whether or not to go ahead with an appeal.
If you still think your property is in the wrong council tax band after taking the steps above, it could be worth making a challenge. There are two procedures to choose from:
If your appeal is denied, then your council tax band - and bill - will stay the same.
If a review is accepted, note that your property won't necessarily be placed in a lower council tax band - it could remain the same, or even put in a higher band, depending on what the valuation finds.
If your property is placed in a higher council tax band, your bills will become more expensive.
Council tax bills are calculated differently in each UK nation.
In England, properties are sorted into bands ranging from A to H, based on the price they would have sold for in April 1991. The VOA assesses properties built after this date by taking the property's layout, size, character, location, use and estimated value into account.
In Scotland, property bands also range from A to H based on an April 1991 value, but the band ranges are slightly different.
In Wales, property values are based on the market value from April 1993, and there's an additional band - so they're sorted from A to I.
Northern Ireland uses a domestic rates system. Council tax bills are calculated using a formula based on a property's value, its domestic regional rate and the domestic district rate.
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If you don't think your property is in the wrong council tax band, there may be other ways to reduce your bills, depending on your circumstances and who you live with.
If you live alone, or with someone who isn't counted as having to pay council tax, you could get a 25% discount. Those who are disregarded for council tax include student nurses, full-time students, those under the age of 25 in approved training and members of visiting forces.
These discounts are not applied automatically. If you think you're eligible, you must make an application for the discount and you'll usually have to provide proof.
Council tax bills are considered a 'priority' payment - this means it's a bill you should prioritise paying over some other forms of debt or payments. This is because measures to enforce payment can quickly escalate, with the most extreme cases ending up in court.
To avoid this, anyone struggling to pay their council tax should contact their local council as soon as possible. It may be able to help set up a discount or alternative payment arrangements, However, these are granted at each council's discretion and you'll usually need to prove that neither your earnings, savings or other assets will be able to pay what you owe.
Those who are experiencing what's deemed as 'exceptional hardship', for reasons beyond their control, may be eligible for hardship relief. Your council will be able to advise whether you're eligible.