The second rent bill most tenants underestimate
When a small business signs a commercial lease, the rent is the number everyone negotiates. The service charge is the number that quietly catches them out afterwards. It is the landlord’s mechanism for recovering the cost of running shared parts of a building or estate: cleaning, repairs, insurance, lighting, security and management. It is charged on top of rent, it can rise year to year, and in a multi-let building it can add thousands of pounds a year to your occupancy costs. Unlike rent, it is rarely fixed, which is why understanding it before you sign matters more than challenging it afterwards.
This guide explains what a service charge covers, how your share is calculated, how the yearly cycle of estimates and balancing charges works, what to negotiate, and what to do when a demand looks wrong. It is general guidance for tenants, not legal advice, and a solicitor should review your lease before you commit.
What a service charge actually covers
A service charge exists because parts of a property are shared. In an office building, a retail parade or an industrial estate, the landlord retains the structure, the common areas, the car park, the access roads and the shared services, and recovers the cost of maintaining them from the tenants. Typical chargeable items include cleaning and repair of common areas, maintenance of the building structure and roof, gardening and external areas, lighting and heating of shared spaces, refuse collection, lifts, security, building insurance, and the managing agent’s fees.
What is chargeable depends entirely on your lease. The lease should list the services the landlord may charge for, and the landlord should only charge for services allowed for in that list. That is the first thing to check: a vague clause allowing the landlord to provide “any other services it considers necessary” is a blank cheque, and the Royal Institution of Chartered Surveyors’ professional statement on service charges says such catch-all clauses should not be used to cover services simply forgotten in drafting. Ask for the list to be specific, and for the landlord to be obliged to provide the essential services, not merely entitled to charge for them if it chooses to.
How your share is calculated
Your lease will state your proportion, usually as a fixed percentage or as a “fair proportion” decided by the landlord or its surveyor. A fixed percentage gives certainty but can become unfair if the building changes, for example if units are split or a new tenant takes space that was previously empty. A fair proportion is more flexible but less predictable. Either way, ask how the figure was worked out: it should broadly reflect your unit’s floor area compared with the total lettable area, and you should check that the percentages across all tenants add up to roughly 100 percent. If they add up to more, tenants are collectively overpaying. If they add up to much less, the landlord may be absorbing a shortfall now and could try to recover it later.
Also ask what happens with empty units. You should not be paying the service charge share of a void unit, and a good lease says so expressly. Similarly, check whether the landlord contributes for any parts it occupies itself, such as a management office or a retained flat. These are the quiet ways a service charge grows beyond what a tenant expected.
The yearly cycle: estimates, instalments and balancing charges
Service charges usually run on an annual cycle that surprises new tenants. Before the service charge year starts, the landlord produces a budget of estimated expenditure. You pay that estimate in quarterly instalments in advance. At the end of the year, the landlord reconciles actual spending against the estimate and produces certified accounts. If actual spending was higher, you pay a balancing charge; if lower, the overpayment is credited against next year’s charge.
Three practical points follow. First, ask for the last two or three years of budgets and actual accounts before signing, plus the budget for the coming year: that history is the best predictor of what you will really pay, and it reveals whether major works are looming. Second, check the timetable in the lease: when budgets must be produced, when accounts must be certified, and how long you have to inspect them. Third, watch for sinking funds and reserve funds. A sinking fund collects money in advance for major future works such as roof replacement or lift renewal. It is legitimate and often sensible, but it should be held in a separate account, accounted for transparently, and credited back or transferred fairly when the lease ends. An unexpected sinking fund contribution can dwarf a year’s ordinary charge.
Caps, exclusions and other protections to negotiate
Commercial leases have limited statutory control over service charges, so negotiation is your main protection, and it must happen before signing. The strongest protections to ask for are a cap and an exclusions list. A cap limits how much the service charge can rise each year, often expressed as a fixed percentage or linked to inflation. Even a cap with carve-outs for exceptional items is far better than no cap at all, because it turns an open-ended liability into a plannable cost.
The exclusions list is equally important. Ask for these to be expressly excluded: costs of remedying inherent defects in the structure; landlord’s costs of letting, selling or financing the building; marketing costs for the estate; head office overheads and management bonuses; costs of complying with obligations the landlord owed before your lease; and any costs relating to other tenants’ defaults or to void units. Management fees deserve their own cap: a managing agent’s fee of 10 to 15 percent of service charge expenditure is common, but it should be capped and should not be charged on top of a separate landlord management fee for the same work.
Two more clauses are worth fighting for. First, a right to inspect the landlord’s service charge accounts and underlying invoices, with a time limit for raising queries. Second, a requirement that the landlord consults tenants before major works above an agreed threshold, so a £100,000 refurbishment of common parts does not arrive as a surprise balancing charge. The RICS professional statement is a useful benchmark of good practice here, even though it is not binding on landlords: a landlord willing to follow it is signalling fair dealing.
When a demand looks wrong: how to challenge it
If you have already signed and a demand looks excessive, start with the lease, not with a refusal to pay. Check that each item is within the list of chargeable services, that your proportion is correct, and that the accounting timetable has been followed. Then write to the landlord or managing agent asking for the certified accounts, invoices for the disputed items, and an explanation of how your share was calculated. Keep the letter factual and polite, and keep paying the undisputed part: withholding the whole charge can put you in breach of the lease and risk forfeiture, even when your complaint is justified.
If the landlord will not engage, options include instructing a surveyor to audit the accounts, mediation, and, where the lease or the sums justify it, legal action. Surveyors regularly find errors: double-counted management fees, void costs passed to tenants, and capital improvements charged as repairs are among the most common. Keep every demand, budget and account from day one, because a challenge three years in is only as strong as the paper trail behind it.
A tenant’s service charge checklist
Before signing, work through this list with your solicitor. What exactly is chargeable, and what is expressly excluded? What is your proportion, how was it calculated, and do the tenants’ shares total about 100 percent? What have charges been for the last three years, and what is budgeted next year? Is there a cap on annual increases and on management fees? Is there a sinking fund, and how is it held and accounted for? When are budgets and certified accounts due, and can you inspect invoices? Does the landlord have to consult you before major works? Who pays for void units and landlord-occupied parts? If the answers are vague, that vagueness is itself information: price it into your offer, negotiate harder, or walk away. The cheapest service charge dispute is the one you avoid by asking these questions before the lease is signed.
Related reading
For the wider costs of taking premises, read our guide to the hidden costs of renting commercial property and our explanation of commercial lease key terms. If you are still negotiating, our guide to negotiating a commercial lease will help, and our tenant’s guide to the rent review clause explains the other charge that can move sharply during a lease.