More than 10,000 people have been overcharged by up to £441 in council tax because their home was placed in the wrong band.
Official figures show 40,240 people challenged their council bills last year.
The Valuation Office Agency (VOA) — the body responsible for working out which council tax band homes fall into — found that of these, 10,120 people have been paying too much.
Official figures show 40,240 people challenged their council bills last year with the Valuation Office Agency finding that of these, 10,120 people have been paying too much
Bands are predominantly based on the value of the property in 1991 — when the council tax system was launched.
If you suspect you are paying too much you can challenge your band, which involves providing the VOA with evidence of how much similar properties in your area are charged.
If the VOA refuses to change it, you can appeal to the Independent Valuation Tribunal.
Of the challenges made in the year to March 2018, the VOA refused 25,220 cases.
The remaining 4,900 of the total 40,240 cases no longer accrue council tax at all because their home has been demolished or their properties have been rebanded entirely after being converted into flats.
Of the 1,490 cases that were taken to an independent tribunal over the same time, just one in 12 was successful.