How UK council tax bands were set in 1991 — and why so many are wrong

Council tax replaced the Community Charge (poll tax) in April 1993. But before it could be introduced, every residential property in England and Wales needed to be assigned a band — a letter from A to H representing its estimated open-market value as of 1 April 1991. That exercise, conducted by the Valuation Office Agency, remains one of the largest property valuation programmes ever carried out in the UK.

The scale of the task

In 1991, there were approximately 21 million dwellings in England alone. Each one needed to be assigned a band. The VOA employed a large number of listing officers — many of them part-time — who conducted drive-by assessments and desk-based valuations using limited reference data. There was no requirement for a physical internal inspection. In many cases, the assessor would estimate a property's 1991 value from the street, or from information about comparable properties nearby.

The time pressure was intense. The government had committed to introducing council tax in April 1993, which meant the valuation had to be completed, checked, and loaded onto local authority systems in under two years. This was not a leisurely exercise.

How bands were assigned

Bands were assigned based on a property's estimated open-market value as of April 1991. The bands were:

The values may seem low by today's standards, but 1991 was a period of significant property market weakness — the early 1990s recession had pushed prices down from their late-1980s peak. The ranges reflect that market.

Why errors are common

Given the scale and speed of the exercise, errors were inevitable. The VOA itself has acknowledged that up to 400,000 homes in England and Wales may be in the wrong band. Common causes of error include:

• Properties valued from the street without access to internal layout or condition
• Comparable data that was thin or locally unrepresentative
• Conversions, extensions, or structural changes not reflected in the valuation
• Administrative errors in transcription or data entry
• Valuers unfamiliar with a local market making conservative or aggressive estimates

Why the bands haven't been updated

There have been several proposals to revalue all properties in England, but none has been implemented. The political risk is significant: any comprehensive revaluation would produce winners and losers at scale. A property that has appreciated faster than the national average (London homes, for instance) might move up two or three bands, dramatically increasing the council tax bill for the occupant. Governments of all parties have found this prospect difficult to navigate.

Wales conducted a revaluation in 2005 using April 2003 values, which produced significant changes across the country. England has not followed. Scotland uses a similar band structure with a 1991 valuation date managed by Scottish Assessors. Northern Ireland uses a different rates-based system.

What you can do

If you believe your property was banded incorrectly in 1991 — or if comparable nearby properties are consistently in a lower band — you have the right to request a Review of Band from the VOA. The process is free, takes no specialist knowledge, and can result in a permanent reduction in your council tax bill, backdated to when you first raised it (or to when you moved in, if earlier).

The strongest evidence in any challenge is comparable properties in a lower band on the same road or in the same postcode. Our tool uses the public VOA register to check your postcode automatically and flag whether neighbouring properties are in a lower band than yours.

Free instant check using the public VOA register. No sign-up required.