Over the full two-year period to 2026, average residential service charges in England, Scotland and Wales rose by 5.8%, according to data from the TPI Service Charge Index. That figure sits just below cumulative inflation over the same period, but it masks a much wider story. For the leaseholder receiving a year-end adjustment letter, the difference between a budgeted estimate and the actual cost can land as a significant bill — or a welcome refund — and the rules around how that process works are changing fast.
I’ve been writing about property costs for long enough to notice a pattern: the year-end adjustment is the moment most tenants and leaseholders feel the least in control. You get a letter, a number, and a short deadline. The question of whether that number is right — and what you can do if it isn’t — is one I hear more and more often, especially with new rules coming into force. Here’s what you actually need to know.
If you’re a tenant in a commercial property or a leaseholder in a residential block, the year-end reconciliation is where the budget meets reality. The new rules under the Leasehold and Freehold Reform Act 2024 and the updated RICS Service Charge Code 2025 are designed to make that process clearer, but they also introduce new requirements that both landlords and tenants need to understand. A good first step is to get professional advice on your specific situation — you can speak to a tenant landlord lawyer online to clarify your rights before the adjustment lands.
What a Service Charge Year-End Adjustment Actually Is
The core idea is simple: you pay an estimated amount throughout the year, and at the end, the landlord or managing agent works out what was actually spent. The difference is the adjustment. But the simplicity ends there. The new rules change how that calculation is done, what you’re entitled to see, and what happens if the numbers don’t add up.
What I’d say to anyone facing their first adjustment is this: don’t treat the final bill as a given. The new rules give you more rights to challenge it than most people realise. The key is knowing what to look for and when to ask questions.
Why the New Rules Matter for Your Next Adjustment
The changes coming into force from 2025 and 2026 are the most significant in nearly a decade. The updated RICS Service Charge Standard for commercial property and the Leasehold and Freehold Reform Act 2024 for residential property both aim to fix the same problem: a lack of transparency that left tenants and leaseholders with little ability to challenge costs.
Consider this: the TPI Service Charge Index shows that Building Safety Act compliance costs grew by 53% year-on-year from 2024. That’s a huge jump, and it’s the kind of cost that can appear in a year-end adjustment without much warning. Under the new rules, you have the right to see the invoices and contracts behind that figure. If the landlord can’t produce them, the cost may not be recoverable.
For commercial tenants, the RICS standard now requires that management fees be fixed at the start of the year, not based on a percentage of actual spend. That alone can change the shape of a year-end bill. And for residential leaseholders, the requirement for a qualified accountant to certify accounts in buildings with four or more properties adds a layer of scrutiny that didn’t exist before.
What I notice most is the shift in who holds the burden of proof. Previously, if you wanted to challenge a cost, you had to find the evidence yourself. Now, the landlord has to provide it. That’s a fundamental change, and it makes the year-end adjustment a much more negotiable document than it used to be. If you’re negotiating a new lease, it’s worth understanding what landlords won’t tell you about service charge clauses before you sign.
Where People Get the Year-End Adjustment Wrong
Assuming the Budget Is the Final Word
The most common mistake I see is treating the budgeted amount as the ceiling. It isn’t. The budget is an estimate, and the year-end adjustment can go either way. Under the new RICS standard, landlords must issue budgets at least one month before the start of the service charge year, and the year-end accounts must follow within four months. If the actual costs are higher, you owe the difference — but only if those costs are properly documented and recoverable under the lease.
Not Asking for the Apportionment Matrix
Commercial tenants in particular should know that the new RICS standard requires an apportionment matrix as part of both the budget and the reconciliation. This matrix breaks down how total costs are shared between occupiers. Without it, you can’t verify whether your share is correct. If your landlord doesn’t provide one, ask for it. It’s a straightforward check that can catch errors early.
Ignoring the 18-Month Rule
Under the Landlord and Tenant Act 1985, as tightened by the new rules, landlords cannot recover costs incurred more than 18 months before the demand is issued, unless a prescribed notice was served within that window. If you receive a demand for costs from two years ago, check the dates. If the notice wasn’t served in time, the cost is not recoverable. This is one of the most powerful protections leaseholders have, and it’s often overlooked.
Overlooking Insurance Commission Disclosure
Under LAFRA 2024, landlords must disclose any commission or payment they receive from building insurance policies. If they don’t, they cannot recover the insurance premium through the service charge. That’s a significant penalty, and it means you should check your year-end statement for any insurance-related charges. If the commission isn’t declared, you may have grounds to challenge the entire insurance cost.
For the most consequential mistake — not checking the apportionment — I’d recommend getting a property lawyer to review your service charge statement if the numbers look off. A professional review can catch errors that are easy to miss on your own.
→ Scroll right to see all columns
| Requirement | Residential (LAFRA 2024) | Commercial (RICS 2025) |
|---|---|---|
| Budget deadline | Start of service charge year | At least 1 month before year start |
| Year-end accounts deadline | Within 6 months | Within 4 months |
| Accountant certification | Required for 4+ dwellings | Recommended but not mandated |
| Apportionment matrix | Not specified | Required |
| Management fee basis | Must be reasonable | Must be fixed at year start |
How to Handle Your Year-End Adjustment: A Practical Guide
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Review the Statement Against the Lease
Your lease is the starting point. It defines what costs are recoverable and how they’re apportioned. Compare every line item in the year-end statement against the lease terms. If a cost isn’t covered by the lease, it shouldn’t be in the adjustment. The new RICS standard makes clear that certain costs — like landlord investment costs, void property costs, and initial capital costs — must not be recovered through the service charge. If you see these in your statement, flag them immediately.
Request Supporting Documents
Under the new rules, you have the right to see contracts, invoices, receipts, insurance policies, and fire risk assessments going back up to six years. Don’t accept a summary figure without the paperwork behind it. If the landlord refuses, that refusal itself may be grounds for challenge. For residential leaseholders, the right to information is now statutory under LAFRA 2024. For commercial tenants, the RICS standard sets a professional benchmark that most tribunals will treat as the definition of reasonable practice.
Check the Timing
Deadlines matter more than ever. If the year-end accounts arrive after the four-month window for commercial property or the six-month window for residential, the landlord should provide an explanation. If the demand includes costs older than 18 months without a prescribed notice, those costs are not recoverable. Keep a record of when you received the statement and when the costs were incurred. A simple spreadsheet can be enough to spot timing issues.
Dispute Through the Right Channel
The new RICS standard encourages Alternative Dispute Resolution (ADR) before court action. That means mediation or arbitration, which is usually faster and cheaper than a tribunal. If you have a dispute, raise it in writing first, then suggest ADR. For residential leaseholders, the First-tier Tribunal (Property Chamber) remains an option, but the new rules make it harder for landlords to recover tribunal costs through the service charge, which levels the playing field.
For commercial tenants, the updated RICS standard also clarifies that ESG expenditure should only be included where it constitutes a genuine service. If your landlord is passing through sustainability initiatives that don’t directly benefit the building’s operation, you may have grounds to challenge them. This is an emerging area, and one to watch closely in future adjustments.
- 1Compare statement to leaseCheck every cost against what your lease allows. Flag anything that doesn’t match.
- 2Request full documentationAsk for invoices, contracts, and the apportionment matrix. You’re entitled to them.
- 3Verify timing and deadlinesCheck the 18-month rule and the year-end reporting deadlines. Note any delays.
- 4Raise disputes in writingUse ADR if possible. Keep a paper trail of every communication.
If you’re managing multiple properties or just want to keep better track of your service charge documents, a document organiser folder can help you keep everything in one place — lease, statements, correspondence, and receipts.
Frequently Asked Questions
Can I refuse to pay a year-end adjustment I disagree with? ▾
What happens if the landlord misses the year-end reporting deadline? ▾
Do the new rules apply to mixed-use buildings? ▾
Can I challenge management fees in the adjustment? ▾
What if my landlord won’t provide the apportionment matrix? ▾
If you’re unsure about any of these points, it’s worth getting a tenant landlord lawyer to review your specific situation before the adjustment deadline passes.
What to Do Next
The year-end adjustment is not a final verdict. It’s a reconciliation that you have the right to question, verify, and challenge. The new rules give you more tools to do that than ever before — clearer deadlines, better documentation rights, and stronger protections against unreasonable costs. Your next step is simple: when the adjustment arrives, don’t just pay it. Read it, check it against your lease, and ask for the paperwork. If this was useful, you might also want to read Essential Legal Tips for Renting a Commercial Space in the UK.
Sources and Further Reading
Understanding Assignment Clauses in UK Commercial Leases — A practical guide to what happens when you need to transfer your lease, including how service charge obligations transfer.
Tips for Renting a Restaurant Space Lease in the UK — Specific advice for hospitality tenants on service charge clauses and year-end adjustments in restaurant leases.
New Rules for Service Charge Accounting. Cox Hinkins, 2025.
The New RICS Service Charge Standard: What It Is and Changes for 2026. Stevens & Bolton, 2025.
TPI Service Charge Index 2026 Report. The Property Institute, 2026.
