An illustrative £30,000 rateable value office in England saw its 2026/27 bill move anywhere from £12,960 to £14,839 depending purely on how the 2026 revaluation affected its specific rateable value – on the same headline multiplier change. If you’re budgeting purely around your mortgage payment when buying commercial property, it’s worth understanding this genuinely separate, often substantial ongoing cost before you commit.
Why Business Rates Are Genuinely Separate From Your Mortgage
Our UK Commercial Finance hub covers the wider lending landscape; this page focuses specifically on a cost that sits entirely outside your mortgage but genuinely affects your overall occupational budget just as much. Business rates are calculated on your property’s rateable value – the Valuation Office Agency’s estimate of the annual rent it could achieve on the open market at a fixed valuation date – multiplied by a specific rate set annually by the government.
Why the 2026 Revaluation Genuinely Matters Right Now
It’s worth knowing that a full business rates revaluation took effect from 1 April 2026, based on rental values as of 1 April 2024, meaning many properties have seen their rateable value shift considerably, regardless of what’s happened to their actual sale price or mortgage terms. A new multiplier structure was also introduced, with five different rates depending on property type and value, rather than the simpler structure many buyers may still be assuming applies.
A Genuine Worked Example Worth Understanding
Consider an illustrative £30,000 rateable value office in England. If its rateable value had stayed flat at revaluation, its 2026/27 bill would fall to around £12,960 purely from the multiplier change. Apply the genuine England-and-Wales average 14.5% office rateable value rise instead, and the bill only falls to around £14,839 – a considerably smaller saving, illustrating how much your specific property’s individual revaluation outcome genuinely matters, not just the headline multiplier reduction you might read about generally.
Transitional Relief: Why Your Bill May Be Phased, Not Immediate
To soften the impact of large rateable value increases, a redesigned Transitional Relief Scheme caps how quickly your bill can rise following the 2026 revaluation – 5% for smaller properties up to £20,000 rateable value, 15% for £20,001 to £100,000, and 30% above that, applied before any other reliefs. It’s worth understanding this cap only applies to increases; a genuine reduction in rateable value is reflected in your bill immediately, without any phasing.
Why Retail, Hospitality and Leisure Properties Face a Genuinely Different Calculation
Our Retail & Shop Mortgages page covers the mortgage side of this sector specifically; it’s worth knowing lower multipliers apply to qualifying retail, hospitality and leisure properties compared with standard commercial premises, though businesses losing some or all of this relief following the 2026 revaluation may qualify for Supporting Small Business Relief to help manage the transition.
Small Business Rates Relief: Worth Checking If You Qualify
If your property has a genuinely low rateable value, you may qualify for small business rates relief, potentially reducing your bill significantly or even eliminating it entirely for the smallest qualifying properties. It’s worth checking your specific eligibility before assuming rates will be a full, unavoidable cost, since a meaningful number of smaller commercial occupiers genuinely qualify for substantial relief.
Why Rateable Value Appeals Go to the Valuation Office, Not Your Council
It’s worth understanding this commonly misunderstood point clearly: if you believe your property’s rateable value is genuinely incorrect, appeals and challenges go directly to the Valuation Office Agency via GOV.UK, not to your local council, which simply administers billing based on the VOA’s figure rather than setting it.
Why This Matters More at Purchase Than Many Buyers Realise
Our piece on commercial mortgage valuations covers how your mortgage valuation is assessed against rental income and yield; it’s worth understanding business rates are calculated on a genuinely separate rental estimate, from a fixed historical valuation date, meaning your rates bill can move independently of both your purchase price and your mortgage valuation entirely.
Office Property: A Sector Genuinely Affected by This Revaluation
Our Office Mortgages page covers the mortgage side of this specific sector, worth reading alongside this page given how directly the 2026 revaluation’s average office rateable value increase genuinely affects your realistic occupational budget beyond the mortgage itself.
Why Occupier Purchases Genuinely Need This Factored In
If you’re buying premises to trade from yourself through our Occupier Mortgages route, business rates form a genuine part of your ongoing occupational cost that exists entirely independently of your mortgage payment – it’s worth budgeting for both together from the outset, rather than focusing purely on the mortgage figure when assessing whether a purchase is genuinely affordable.
Getting a Realistic Picture Before You Commit
Given how much genuinely depends on your specific property’s rateable value, sector, and eligibility for relief, it’s worth checking the current rateable value and any applicable reliefs for your target property directly via the VOA before finalising your purchase decision. Get in touch with details of your target property and mortgage requirements, and we’ll help you build a genuinely complete picture of your total occupational cost.
Frequently Asked Questions
Are business rates part of my mortgage payment?
No – they’re an entirely separate ongoing cost, calculated on your property’s rateable value, worth budgeting for alongside your mortgage rather than assuming your mortgage payment represents your full occupational cost.
When did the current business rates revaluation take effect?
From 1 April 2026, based on rental values as of 1 April 2024, with a new five-tier multiplier structure introduced alongside it.
Will my bill increase immediately if my rateable value has risen significantly?
Not necessarily in full – Transitional Relief caps how quickly increases can be phased in, though reductions in rateable value are reflected immediately with no phasing.
Can I appeal my rateable value if I think it’s wrong?
Yes, but appeals go directly to the Valuation Office Agency via GOV.UK, not to your local council.
Do smaller commercial properties get any relief from business rates?
Often yes – small business rates relief can significantly reduce or even eliminate the bill for genuinely low rateable value properties, worth checking your specific eligibility.
Get in touch with details of your target property, and we’ll help you build a genuinely complete picture of your total occupational cost alongside your mortgage.
