How to build, approve, issue and reconcile a service charge budget for a commercial property — written for property managers, by a property manager.
Every commercial managing agent in the UK runs service charge budgets. Almost all of them run those budgets on spreadsheets — different formats between property managers, approvals buried in email threads, tenant packs rebuilt by hand every year, and no audit trail when a tenant (or their surveyor) challenges a figure three years later.
The budget gets done eventually. But the process is slower, riskier and more painful than it needs to be.
This guide covers the full service charge budgeting cycle from first draft to year-end reconciliation: what the RICS Professional Standard actually requires, how apportionment works in practice, how to structure the approval workflow, and where the process most commonly goes wrong.
What is a service charge budget?
A service charge budget is the annual forecast of the cost of operating, maintaining and repairing the common parts and shared services of a commercial property, which the landlord recovers from tenants under the terms of their leases.
It typically covers:
- Soft services — cleaning, security, landscaping, waste management, reception
- Hard services / M&E — lift maintenance, HVAC, fire systems, planned preventative maintenance
- Utilities — common part electricity, gas, water
- Insurance — where recovered through the service charge rather than separately
- Statutory compliance — fire risk assessments, asbestos surveys, water hygiene
- Management fees — the managing agent's fee for administering the service charge
- Reserve or sinking funds — where the lease permits, contributions toward future major expenditure
The budget matters because it is the basis of the on-account demands tenants pay through the year. Get it materially wrong in either direction and you create a problem: under-budget and the landlord carries a cash flow shortfall until reconciliation; over-budget and tenants are funding a surplus they'll rightly want explained.
The legal and professional framework
The lease comes first
The lease is the contract. It defines what is recoverable, from whom, in what proportion, and through what machinery. No professional standard overrides it. Before building any budget, you need to know for each unit:
- What services the lease allows the landlord to recover
- The apportionment method specified (or whether it's a "fair proportion" left to the landlord's surveyor)
- Any caps, exclusions or carve-outs (very common in recent lettings)
- The service charge year the lease defines
- Certification requirements — who signs off the accounts, and by when
A schedule of these lease provisions across the building — often called a recoverability matrix — is the single most useful document you can build before touching the numbers.
The RICS Professional Standard
The RICS Service Charges in Commercial Property Professional Standard 2nd edition (published June 2025; effective from 31 December 2025) sets the professional framework for RICS members and regulated firms. It replaces the 1st edition that had been mandatory since April 2019. RICS expects full adoption for service charge years ending 31 December 2026 and beyond (with early adoption encouraged). For a fuller walkthrough, see the RICS service charge code explained.
Paraphrasing the 2nd edition's mandatory requirements:
- Expenditure must be in accordance with the terms of the lease
- Managers must seek to recover no more than 100% of the proper and actual costs of the services
- Budgets with explanatory commentary must be issued at least one month before the service charge year starts; approved year-end accounts must be issued within four months of year end — and if either timescale slips, tenants must receive a timely explanation of when and why
- A service charge apportionment matrix (basis of calculation and totals per schedule per unit) must be provided with the budget and with the year-end accounts
- Service charge monies — including reserve and sinking funds — must be held in one or more discrete (or virtual) bank accounts
- Interest earned on service charge accounts must be credited to the service charge
- Practitioners acting for tenants must advise that tenants are not generally entitled to withhold properly demanded charges (with limited scope for mathematical/computational error)
- Managers acting for landlords must adjust incorrectly raised charges without delay once a dispute is resolved
Points 3 and 4 are where spreadsheet-based processes most often fall short — not because the numbers are wrong, but because producing the commentary, the accounts and the apportionment matrix on time, in a consistent format, across a whole portfolio, is exactly the kind of repetitive document production that manual processes do badly.
The RICS cost classifications
The Standard includes a standard industry cost classification — categories and cost codes covering management, utilities, soft services, hard services, insurance and exceptional expenditure. Adopting it does three things:
- Makes your budgets comparable year on year and building to building
- Makes benchmarking against industry data possible
- Makes life dramatically easier at reconciliation, because actuals map to the same codes as the budget
If your current spreadsheets use ad-hoc categories that vary by property manager, standardising on the RICS taxonomy is the highest-value cleanup you can do.
Building the budget: a step-by-step process
Step 1 — Establish the structure
Define the property, its schedules and its units before any numbers. A schedule is a grouping of costs recovered from a defined set of units — most multi-let buildings need several (e.g. an estate schedule all tenants contribute to, a building schedule for internal common parts, and a lift schedule excluding ground floor retail).
Getting schedules right is the difference between a defensible apportionment and a dispute. A tenant with no access to the lift should not be paying for the lift, and their lease almost certainly says so.
Step 2 — Build the cost lines
For each schedule, build the cost lines from evidence, not from last year plus 5%:
- Contracted costs — take the actual contract values (cleaning, security, M&E) including any indexation due in the budget year
- Utilities — use consumption history and current unit rates; flag any hedging or contract renewals falling in-year
- Compliance and statutory — build from the compliance calendar: what surveys, assessments and certifications fall due this year
- PPM — from the planned maintenance schedule, not a round number
- Repairs allowance — this is legitimately an estimate; base it on a multi-year average with commentary
- Management fee — per the lease and the Standard (a fixed fee, not a percentage that inflates with expenditure)
Every line should carry a short commentary note. The RICS Standard requires explanatory commentary with the budget, and writing it line-by-line as you build is far easier than reverse-engineering it later.
Step 3 — Apportion
Apportionment divides each schedule's costs between the units that benefit. Common methods:
- Floor area — the default for most commercial buildings; each unit pays its share of lettable area within the schedule
- Weighted floor area — adjusts for units that derive different benefit (e.g. a discount for upper-floor storage)
- Fixed percentages — specified in the lease; simple but inflexible when the building changes
- Rateable value — increasingly rare, but still found in older leases
Whatever the method, two rules are absolute. First, the lease governs — if the lease specifies a method, that's the method. Second, the landlord bears the void cost: vacant units' shares are not redistributed among the remaining tenants. The apportionment matrix must account for 100% of each schedule, with the landlord's own liability for voids shown.
This matrix — every unit, every schedule, every percentage — is a mandatory annual disclosure under the Standard. It should fall out of your process automatically, not be a separate document someone assembles under deadline pressure.
Step 4 — Route for approval
Before anything goes to tenants, the budget needs internal sign-off — typically the property manager, then a senior surveyor or director, and often the landlord client. In a spreadsheet process this happens by email, which means:
- No record of which version was approved
- Comments scattered across threads
- No certainty the issued pack matches the approved figures
A proper approval workflow captures who approved what, when, and against which version — which is precisely the audit trail you'll want when a figure is challenged at reconciliation, or when a new PM inherits the building mid-cycle.
Step 5 — Issue the tenant packs
Each tenant receives a budget pack: the total budget by schedule and category, the explanatory commentary, their apportionment, and their on-account demand derived from it. The Standard requires budgets, with commentary, to be issued at least one month before the start of the service charge year.
The pack is also a communication document. A clear, consistent, well-branded pack reduces queries; an inconsistent one generates them. If your PMs each format their own packs, tenants across your portfolio are having wildly different experiences of the same firm.
Reconciliation: closing the loop
The budget is a forecast. Reconciliation is the truth. Within four months of year end (mandatory under the Standard, with a duty to explain any delay) — you compare actual expenditure against budget, produce the service charge accounts, and issue each tenant a reconciliation statement showing their balancing charge or credit.
Done well, reconciliation is where trust is built or destroyed:
- Variance commentary matters more than the variance. A 20% overspend on repairs with a clear explanation (the January storm, the lift replacement part) lands fine. An unexplained 8% creep across every line lands badly.
- Invoices must map to cost lines. If actuals were coded consistently against the same categories as the budget, reconciliation is a report. If they weren't, it's a forensic exercise.
- The audit trail is the defence. Tenants — and increasingly their advisers — challenge service charges more than they used to. Budget commentary, approval records, invoice-level backup and a clean apportionment matrix are what make a challenge short.
This is also the strongest argument for running the whole cycle in one system rather than a budgeting spreadsheet, an accounting export and a Word reconciliation statement: when budget, approvals, invoices and reconciliation live in one place, the year-end statement assembles itself.
The most common failure modes
After six years managing commercial portfolios in the UK and New Zealand, these are the problems I've seen most often — in firms of every size:
- Every PM has their own spreadsheet format. No firm-level consistency, no comparability, and every handover is an archaeology project.
- Approvals by email. The approved version and the issued version drift apart, and nobody can prove which is which.
- Tenant packs rebuilt by hand every year. Days of formatting work per portfolio, annually, with copy-paste errors that surface as tenant queries.
- Apportionment held in one person's head. The weighting logic behind "fair proportion" decisions is undocumented, so it can't be defended — or consistently repeated.
- Reconciliation as a separate universe. Actuals coded in the accounting system against different categories than the budget, making variance reporting a manual mapping exercise.
- No audit trail. When a tenant's surveyor asks how a 2024 figure was arrived at, the answer lives in a leaver's inbox.
None of these are competence problems. They're tooling problems. The industry's default tool — the spreadsheet — was never designed to run a multi-party, multi-year, audit-sensitive workflow.
Frequently asked questions
What's the difference between a service charge budget and a service charge estimate? In practice the terms are used interchangeably. Some leases use "estimate" for the figure on which on-account demands are based; the RICS Standard uses "budget". What matters is the machinery in the lease.
Can a landlord recover more than the budget? Yes — the budget is a forecast, and the reconciliation trues up to actual expenditure, subject always to the lease. Some leases cap recovery at the budgeted figure or at an indexed cap, which is exactly why the recoverability matrix matters.
Who pays the service charge for vacant units? The landlord. Void liability is not recoverable from the remaining tenants, and the apportionment matrix should show the landlord's void share explicitly.
How far in advance should the budget be issued? The Standard's expectation is that budgets, with commentary, are issued at least one month prior to the start of the service charge year.
Is a sinking fund the same as a reserve fund? They're related but distinct: a reserve fund smooths recurring but irregular expenditure (external redecoration every five years); a sinking fund accumulates toward one-off replacement of major plant. Both are only permissible where the lease provides for them, and both must be held in trust in discrete accounts.
Run the whole cycle in one place
ClearCharge is service charge budgeting software built by a commercial property manager for managing agents — still being validated with early users before wider market launch. The aim is one place to set up a building, build the budget against the RICS cost classifications, route it through a proper approval workflow, generate branded tenant packs, and close the year with reconciliation — actuals against budget, invoice-level backup, statement generation — with a full audit trail.
If you want to see the workflow or join early access, start here:
Written by Jack Galliven, a commercial property manager with six years' experience across UK and New Zealand portfolios, and the founder of nectar property.
Position on the RICS Professional Standard stated as at November 2026.