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Updated: Aug 18

Direct answer: office business rates are based on the property's rateable value, which broadly reflects its estimated annual rental value at the statutory valuation date. Location, floor area, specification, layout and rental evidence may all matter. A high bill alone does not prove the valuation is wrong.

What this means in practice

The council applies the multiplier and any reliefs to the VOA's rateable value. Questions about the valuation itself belong with the VOA; questions about relief, liability, payments or billing belong with the council. Separating those issues prevents the wrong evidence being sent to the wrong body.

A practical example

A company occupies two floors but the VOA record includes storage space surrendered under a lease variation. The occupier compares the rating details with plans, the revised lease and dated photographs. If the recorded area or occupation is wrong, those documents may support correction before valuation comparisons are considered.

Documents and evidence to prepare

  • Current VOA rating-list entry and valuation details.

  • Full lease, rent schedule and rent-review documents.

  • Accurate floor plans and measurements.

  • Photographs showing layout, access and condition.

  • Details and dates of structural alterations.

  • Evidence of separately occupied or inaccessible areas.

  • Comparable rents or assessments with like-for-like explanations.

Recommended next steps

Check the factual record first. Then assess the valuation evidence and financial impact before starting a formal case. Do not rely on a single cheaper neighbouring assessment without checking differences in size, use, condition and location.

Official sources

Get case-specific help

If your office floor area, property description or rateable value appears wrong, send us the VOA reference, lease, plans and latest bill. We will review whether the issue is factual, valuation-related or a council billing matter.

Article information

Written by Steve Adams, Business Rate Advisors Ltd. Reviewed by Mark Allen. Updated 18 August 2026. This article provides general information for businesses in England and Wales; individual outcomes depend on the facts and evidence.

 
 
 

Updated: Aug 18

Direct answer: a business rates challenge may be worthwhile when reliable evidence suggests the rating-list entry or rateable value is wrong. It should not be started simply because the bill feels high. The potential saving, evidence strength, relevant dates, professional costs and possibility of no change—or an increase—should all be considered.

What this means in practice

In England, most valuation disputes begin through the VOA Check and Challenge process. A check confirms property facts; a challenge explains why the valuation is wrong and supplies evidence. Billing disputes, relief decisions and payment problems are normally dealt with by the council instead.

A practical example

An occupier discovers that the VOA record includes a mezzanine removed before the relevant valuation date. Dated plans, photographs, building-control records and measurements may support a factual correction. By contrast, a general statement that neighbouring businesses pay less is unlikely to be enough without comparable property and rental evidence.

Documents and evidence to prepare

  • Current and historic rating-list entries.

  • VOA valuation details and floor areas.

  • Lease, rent review and relevant rental evidence.

  • Scaled plans, measurements and dated photographs.

  • Details of alterations, demolition or reconstruction.

  • Comparable assessments with an explanation of their relevance.

  • Bills showing the financial period affected.

Recommended next steps

Begin with a desktop review of the rating-list facts and valuation basis. Estimate the potential financial effect, identify the evidence gaps and check applicable procedural deadlines. Do not make unsupported assertions or select comparables solely because their values are lower.

Official sources

Get case-specific help

Send us the property address, VOA reference, current bill, lease and any plans or photographs. We can provide an initial view on whether the evidence supports a challenge and what further material may be needed.

Article information

Written by Steve Adams, Business Rate Advisors Ltd. Reviewed by Mark Allen. Updated 18 August 2026. This article provides general information for businesses in England and Wales; individual outcomes depend on the facts and evidence.

 
 
 

Updated: Aug 18

Direct answer: Birmingham City Council handles business rates bills, payments, liability, most reliefs and recovery. The Valuation Office Agency handles the rating-list entry and rateable value. Sending the problem to the correct organisation—and providing a dated evidence pack—usually avoids unnecessary delay.

What this means in practice

Contact the council where the wrong occupier has been billed, occupation dates are incorrect, a payment is missing, relief has not been applied or recovery action is disputed. Contact the VOA where the property description, floor area, effective date, split, merger, deletion or rateable value may be wrong.

A practical example

A Birmingham tenant receives a bill covering three months before its lease began. The council needs the signed lease, completion statement, key-handover date and earlier bill. If the bill dates are correct but the property floor area is overstated, that separate valuation issue belongs with the VOA.

Documents and evidence to prepare

  • Latest bill and complete account statement.

  • Lease, licence, completion or surrender documents.

  • A simple timeline of occupation and empty periods.

  • Proof of payments and relevant council correspondence.

  • VOA property reference, valuation details, plans and photographs.

  • Copies of summons, liability-order or enforcement notices if recovery has started.

Recommended next steps

Identify whether the disputed fact concerns liability or valuation. Write a short chronology, number the supporting documents and state the correction requested. Continue dealing with any undisputed current liability where possible. If recovery is underway, ask the council to record the dispute and confirm its position in writing.

Official sources

Get case-specific help

If your Birmingham bill names the wrong occupier, uses incorrect dates, omits relief or is based on a questionable valuation, send us the latest bill and a short explanation. We will identify the correct route and the evidence required.

Article information

Written by Steve Adams, Business Rate Advisors Ltd. Reviewed by Mark Allen. Updated 18 August 2026. This article provides general information for businesses in England and Wales; individual outcomes depend on the facts and evidence.

 
 
 
Business Rate Advisors Ltd is based in Wiltshire and represents businesses throughout England and Wales.

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