Is Your Rateable Value Assessment Too High?

A rateable value assessment can quietly add thousands of pounds to your annual overheads. If the Valuation Office Agency (VOA) has attributed too high a value to your shop, office, surgery, warehouse, pub or factory, you could be paying more business rates than your property should attract. The frustrating part is that the error is not always obvious from the bill.

Business rates are a major fixed cost, yet many occupiers accept their rateable value without checking how it was reached. That is understandable. Rating law, rental evidence and VOA procedures are technical, and most business owners have a business to run. But an assessment that does not reflect the property, its use or the local rental market deserves a closer look.

What a rateable value assessment actually means

Your rateable value is not the amount you pay in business rates. It is the VOA’s estimate of the annual rental value of a non-domestic property at a legally defined valuation date, using the assumptions set out in rating law. Your council then applies the relevant business rates multiplier, alongside any reliefs, to calculate the bill.

That distinction matters. A rateable value can look plausible at first glance while still being based on unsuitable rental evidence, the wrong floor areas, an incorrect property description or an assumption that does not match the premises you occupy.

For example, a retailer may be assessed alongside better-positioned units with stronger footfall. A warehouse could include an area that is poor quality, restricted or not usable in the way the valuation assumes. A dental practice may have an unusual layout or location factor that local rental comparisons do not properly capture. The detail changes from property to property, but the financial effect can be real.

Why businesses miss overpaid rates

The VOA maintains the rating list, but it does not see every operational issue inside every commercial property. It works from available evidence and statutory assumptions. That makes the list essential, but not infallible.

Businesses also tend to focus on the total bill rather than the figure behind it. When rent, wages, energy, stock and supplier costs are all demanding attention, investigating a valuation can slip down the list. Some occupiers assume that a recent revaluation means their entry must be right. Others believe only empty or struggling premises can have grounds for a reduction. Neither assumption is safe.

A sound review looks beyond whether trade is difficult. Business rates are primarily property-based, so the strongest case is usually evidence that the assessment is wrong for rating purposes. That may concern comparable rents, measurements, physical characteristics, access, layout, location or changes affecting the property.

The areas an expert assessment should test

A proper review is more than a quick comparison with the unit next door. Two apparently similar properties can have different lease terms, fit-outs, conditions, uses and rental histories. Good evidence has to be relevant to the valuation assumptions, the location and the correct time period.

An experienced rating surveyor will normally examine several connected points, including:

• the recorded address, property description and floor areas;
• the valuation method used for that type of property;
• local rental transactions and suitable comparable premises;
• any physical or practical disadvantages that affect value; and
• whether the effective date of an alteration or challenge has been handled correctly.

Measurements are particularly important. A discrepancy in net internal area, storage space or ancillary accommodation can alter the assessment. So can an assumption that a basement, upper floor, yard or workshop has the same value as more useful space. In some cases, the property is correctly measured but the adopted rate per square metre is not supported by the best local evidence.

The reverse can also be true. Not every high bill is evidence of a wrong rateable value. A property may be accurately assessed but receive no available relief, or its bill may have risen because of a change in the multiplier or transitional rules. An honest assessment identifies where there is a credible valuation argument, rather than promising a reduction before the facts are known.

Current rent is useful, but it is not the whole answer

A common question is simple: “My rent is lower than my rateable value, so can I challenge it?” Sometimes, but not automatically.

The rating system does not simply copy the rent you pay today. It considers the statutory valuation date and applies assumptions about the tenancy and property. A low rent may reflect a short lease, incentives, a relationship between landlord and tenant, unusual repair obligations or market conditions that fall outside the relevant valuation date. Equally, a rent that initially looks unhelpful may reveal a useful pattern when assessed alongside other local lettings.

This is where local knowledge makes a difference. The right comparison is not merely the nearest property or the newest transaction. It is one that can be adjusted and defended as evidence for rating purposes. That takes research, judgement and an understanding of how the VOA is likely to approach the valuation.

What happens after a rateable value assessment review

The first step should be proportionate: establish whether there is a realistic case before spending time on a formal process. A specialist will review the rating entry, property information and initial evidence to decide whether a reduction could be justified.

If there are grounds to proceed, the work becomes more detailed. Evidence is gathered, calculations are checked and the valuation argument is prepared. The formal route for challenging a rating entry has defined stages and requirements, and the available options depend on the circumstances of the property and the rating list. Deadlines and effective dates matter, particularly where historic overpayments may be involved.

The VOA may agree that the entry should change, request further evidence or maintain its assessment. A well-prepared case does not guarantee a reduction, but it gives you a far stronger position than a generic objection based only on the size of the bill.

If an alteration results in a lower rateable value, the council recalculates the business rates liability in line with the decision. Where the change applies back to an earlier date, an overpayment rebate may be due. The amount and period of any refund depend on the facts, the effective date and the applicable rules. This is why acting early is sensible: delay can limit options and leave cash tied up in unnecessary rates payments.

When should you ask for help?

There is no need to wait for a crisis. A review is worth considering after a new lease, a move, an expansion, a refurbishment, a change to the usable area, a notable shift in the local market or a sharp increase in business rates. It can also be worthwhile if you have never had the rating entry independently checked.

This is especially relevant for businesses in premises with features that are easy to undervalue in conversation but significant in practice: poor access, restricted loading, awkward layouts, low ceiling heights, shared facilities, upper-floor trading space or limited visibility. The facts may not automatically create a reduction, but they should not be ignored.

You do not need to become an expert in rating law to protect your position. Your Local Business Rates Saver can carry out a free initial eligibility review, then manage the valuation analysis, evidence and appeal process where there is a viable case. With RICS or IRRV-qualified surveyors and local rates intelligence, the aim is straightforward: challenge inaccurate assessments and reduce avoidable pressure on your cash flow.

A rateable value assessment is not a figure you have to accept without question. Put the paperwork in front of someone who understands the evidence, the process and the value at stake. If the assessment is right, you gain clarity. If it is wrong, acting now could stop more money leaving your business than necessary.