A service charge demand lands and the number is bigger than last year, bigger than the budget, or simply unexplained. Before you pay it, argue about it or ignore it, it helps to know that residential leaseholders in England hold a specific set of statutory rights, most of them in the Landlord and Tenant Act 1985, that control what your landlord can charge, when they must consult you first, how late a demand can arrive, and what paperwork you can force them to show you. Here is the toolkit at a glance:

ProvisionWhat it doesWhen you reach for it
LTA 1985 s.18Defines "service charge" and "relevant costs"Checking the charge is inside the statutory protections at all
LTA 1985 s.19Limits charges to costs reasonably incurred, works to a reasonable standardThe core "this is excessive" challenge
LTA 1985 s.20 + SI 2003/1987Consultation before works over £250 per tenant or long term agreements over £100 per tenant per yearMajor works billed without the notice procedure
LTA 1985 s.20B18-month time limit on demandsA bill arriving long after the money was spent
LTA 1985 ss.21-22Right to a certified costs summary, then to inspect the invoices and accounts behind itBuilding the evidence before any challenge
LTA 1985 s.27AFirst-tier Tribunal decides whether a charge is payable and how muchWhen correspondence has failed
LTA 1985 s.20CStops your landlord recharging their litigation costs through the service chargeFiled alongside the tribunal application

The rest of this page works through each hook in the order a real dispute uses them, then does the part that decides a challenge: how to read the service charge accounts and supporting documents once you have extracted them, because that is the evidence a tribunal case is built from. It closes with the angle that matters if you let the flat out: how service charges, disputes and refunds behave for tax, and how a live dispute plays when you sell.

What counts as a service charge, and what "reasonably incurred" means

Section 18 defines a service charge as an amount payable by a tenant of a dwelling, as part of or in addition to the rent, for services, repairs, maintenance, improvements, insurance or the landlord's costs of management, where the whole or part of it varies or may vary according to the relevant costs. Variability and scope are the words doing the work.

The statutory protections attach to charges that move with the costs, which describes almost every block arrangement where you pay a fixed percentage of whatever the year cost. A charge written into the lease at an amount that never changes falls outside sections 19 to 27A. (The 2024 reform Act would extend regulation to fixed charges, but that provision is not yet in force; more on that below.)

Scope reaches further than repairs. Insurance and management costs are inside the definition, which is why insurance premiums and managing agent fees are challengeable in the same way as a repair bill. Ground rent is not a service charge and cannot be attacked through s.19 or s.27A; the ground rent rules are a separate regime with separate remedies.

Section 19 then supplies the substantive limit: relevant costs are recoverable only to the extent they were reasonably incurred, and where they relate to works or services, only if the works or services are of a reasonable standard. That is two separate tests. A roof repair at a fair market price, done badly, fails the second test even though it passes the first. A gold-plated specification the block did not need can fail the first even if the workmanship is excellent. "Reasonably incurred" does not mean "the cheapest possible option": a freeholder who took proper advice, obtained competitive quotes and made a defensible choice will usually clear the bar. Your challenge is strongest where you can show the process was absent (no quotes, a connected contractor, no explanation) or the outcome is out of line with comparable evidence, such as quotes you obtain for the same work or the same insurance cover.

The 18-month rule: late demands and the notification limb

Section 20B gives late bills a hard stop, and it is one of the most misquoted provisions in the Act, so state it precisely. The rule is that a demand for payment served more than 18 months after the relevant costs were incurred means those costs are not recoverable through the service charge. The exception, in s.20B(2), is the notification limb: if within 18 months of incurring the costs your landlord notified you in writing that the costs had been incurred and that you would subsequently be required under the terms of your lease to contribute to them, a later demand survives.

So the rule is not "your landlord can never recover costs more than 18 months old". It bars stale demands where you were kept in the dark. It also gives little help where the costs were already covered by on-account payments demanded in advance in the usual way; its bite is on balancing demands and catch-up bills for costs never previously flagged to you.

A worked timeline shows how it runs. Elaine owns a single leasehold flat. The freeholder replaced the communal boiler in January 2024 and paid the contractor in February 2024. Nothing was said to leaseholders. In October 2025, 20 months later, a demand arrives for £1,850 as her share (illustrative figures). Elaine's response letter makes three points: the costs were incurred in February 2024 when the contractor was paid; no written notification under s.20B(2) was given within 18 months of that date; the demand was served outside the 18-month limit, so under s.20B(1) the costs are not recoverable from her. Unless the freeholder can produce a notification letter she never received, that demand is dead. Had the freeholder sent even a short letter in, say, June 2024 stating the boiler costs had been incurred and a demand would follow, the October 2025 bill would have stood.

Consultation: the £250 and £100 triggers, and the Daejan reality check

Section 20, fleshed out by the Service Charges (Consultation Requirements) (England) Regulations 2003 (SI 2003/1987), requires your landlord to consult leaseholders before committing to two kinds of spending:

  • Qualifying works where the contribution of any tenant would be more than £250 (reg 6): your landlord must serve a notice of intention, obtain estimates, have regard to observations and, in most cases, allow leaseholders to nominate a contractor.
  • Qualifying long term agreements, contracts running more than 12 months (cleaning, lift maintenance, managing agents), where any tenant's contribution would exceed £100 in an accounting period (reg 4(1)).

Both thresholds are per tenant, not per building or per project. That is the point people get wrong in both directions. A £3,000 job across 15 equal shares is £200 each: under the threshold, no consultation needed. A £20,000 roof across 10 equal shares is £2,000 each: consultation required in full before the contract is placed. Where your lease apportions unequally, the test is whether any tenant crosses the line, so one large percentage share can trigger consultation for the whole block.

The sanction for skipping consultation is that recovery is capped at £250 per tenant for the works (£100 per accounting period for a long term agreement). On paper that turns a £2,000 bill into £250. In practice you have to reckon with dispensation. Under s.20ZA the tribunal can dispense with the consultation requirements where it is reasonable to do so, and the Supreme Court in Daejan Investments Ltd v Benson [2013] UKSC 14 settled how that discretion works: what matters is the prejudice leaseholders suffered from the failure to consult, not the seriousness or culpability of the breach. Dispensation can also be granted on terms; Daejan itself received dispensation on terms including a £50,000 reduction in the recoverable cost and payment of the leaseholders' costs.

The practical consequence: do not build your case on the cap alone. A freeholder who did the works competently at a sensible price but botched the paperwork will usually get dispensation, possibly on terms. Your leverage is a concrete prejudice argument: with proper consultation you would have nominated a cheaper contractor, challenged the specification, or pointed out that a repair rather than a replacement was needed. Evidence of what the consultation would have changed is what moves the tribunal, both on whether to dispense and on what terms.

Extracting and reading the evidence: the accounts walkthrough

Everything above is the law. Disputes, though, are won on documents, and the Act hands you the extraction tools. Section 21 lets you require a written summary of the costs relevant to your service charges for the last accounting year; for blocks of more than four dwellings it must be certified by a qualified accountant, and it must show how costs are reflected in demands and distinguish billed-but-unpaid items. One warning before you open the Act, because it catches people out: legislation.gov.uk displays a replacement s.21 headed "Service charge information", substituted by the Housing and Regeneration Act 2008, which reads as a power to make regulations rather than as a right to a summary. That substitution was commenced in England only so that the Secretary of State could make regulations, and none were ever made, so the original summary right is the provision in operation. The in-force s.22(1) confirms as much: it still cross-refers to "such a summary as is referred to in section 21(1) (summary of relevant costs)", wording that only works against the original text. Section 22 is the sharper tool: within six months of receiving the summary you can require facilities to inspect the accounts, receipts and other supporting documents, and to take copies. Inspection must be provided free (your landlord's cost of providing it is treated as a management cost); copies can carry a reasonable charge.

Once the papers arrive, here is what an accountant looks at, in order:

  • Budget against actuals. Line up the year's budget (which drove your on-account demands) against the actual costs in the accounts. Large favourable variances that never produce a credit, or unfavourable ones with no explanation, are the first questions to ask in writing.
  • Apportionment against your lease. Your lease states your share, as a percentage, a fraction or "a fair proportion". Check the demand applies it, and ask for the full apportionment schedule: every unit's share, which should total 100%. Mis-keyed percentages and schedules totalling 103% are more common than anyone admits.
  • Reserve fund movements. Contributions in, expenditure out, and the closing balance. Reserve and sinking fund money is trust money: s.42 of the Landlord and Tenant Act 1987 requires variable service charge contributions to be held on trust, a status confirmed in HMRC's own guidance at TSEM5710. It is your money held for the building, not the freeholder's working capital, so a reserve that is repeatedly collected and then absorbed into general spending is a legitimate line of attack.
  • Management fee layering. Note the managing agent's base fee, then hunt for the second and third layers: a percentage "supervision" or "project management" fee on major works, administration charges inside individual invoices, and fees charged by connected companies of the freeholder or agent. Each layer is separately testable against s.19 reasonableness.
  • Insurance commissions. Buildings insurance is often the largest single line. Ask what commission the broker paid and how much of it was shared with the freeholder or agent. A premium inflated by a large shared commission is challengeable as not reasonably incurred, and comparable quotes for equivalent cover are the evidence that makes the point.

Know also what a certified summary does not prove. The accountant's certificate says the summary is supported by the accounts, receipts and other documents produced; it is an agreement-to-records check, not a judgment that the spending was reasonable. Reasonableness is a s.19 question for the tribunal, so a freeholder waving a certified account at you has answered a different question from the one your challenge asks.

A short worked example of the apportionment check. Dev owns a buy-to-let flat in a 24-unit block; his lease fixes his share at 4.2%. The year's accounts (illustrative figures) show total relevant costs of £48,000, so his share should be £2,016. His demand says £3,000, which is 6.25%. The apportionment schedule he requests shows the agent has re-spread the block's costs across only 16 "contributing" units, at 6.25% for flats like Dev's, after four commercial units and four unsold units were left out, contrary to the lease percentages. Sixteen shares of 6.25% close the schedule at 100%, which is how the re-spread hides in plain sight. That single schedule request turned a vague sense of overcharging into a precise, arithmetical claim for £984, and multiplied across the block it explains why the agent preferred not to volunteer the schedule. Nothing in that exercise needed a lawyer; it needed the lease percentage and the accounts side by side.

What the documents show sometimes points past the individual bill. If the accounts reveal a block that is chronically mismanaged rather than occasionally overcharged, the longer-term remedy is taking over management through right to manage. To see the accounts from the side of the people who produce them, including what a well-run RTM company's service charge accounting looks like, read how an RTM company is set up and run. Commercial tenants face a different regime under different rules, set out in our commercial service charge accounts introduction.

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Challenging at the tribunal, and whether to withhold payment

Before an application, exhaust the free routes. Put a formal complaint through the managing agent's own procedure, then to the redress scheme the agent has to belong to: membership of either The Property Ombudsman or the Property Redress Scheme has been compulsory for property managers in England since 1 October 2014, including agents managing leasehold blocks. It costs you nothing, it produces a paper trail a tribunal will read, and it sometimes settles the point. Note also that this page describes the England tribunal; in Wales the equivalent application goes to the Leasehold Valuation Tribunal within the Residential Property Tribunal Wales.

When correspondence stalls, section 27A gives the First-tier Tribunal (Property Chamber) jurisdiction to determine whether a service charge is payable and, if so, by whom, to whom, how much and when. You can apply about charges already paid as well as demanded ones, and your landlord can apply too, to have a charge confirmed. The tribunal decides on the evidence: the lease, the s.21 and s.22 documents, comparable quotes, photographs of defective work, and the apportionment arithmetic above.

The economics changed in July 2026. Under the Court and Tribunal Fees (Miscellaneous Amendments) Order 2026 (SI 2026/642), in force from 6 July 2026, an application under s.27A(1) or (3) costs £114, with a £227 hearing fee if it goes to a hearing: £341 in tribunal fees for a fully contested case, before any professional help you choose to buy. Older guides quoting £100 and £200 are citing the superseded schedule.

Cost protection belongs in every application. The tribunal is broadly a costs-neutral forum, but many leases contain a clause allowing your landlord to recover legal and professional costs through the service charge, which would let them lose the case and still bill the block for their lawyers. Section 20C lets you apply for an order that your landlord's costs of the proceedings are not to be treated as relevant costs in your service charge, and the place to ask for it is the application form itself.

Price the dispute honestly as well, if the sums are modest: £341 in fees plus your time against the sum in issue, remembering that a tribunal determination on one year's charges often resets the behaviour, and the numbers, for every year after.

On withholding payment while you dispute, the honest answer is: it carries real protections and real risks, so take advice before you rely on it.

  • Protection: section 81 of the Housing Act 1996 prevents your landlord exercising forfeiture or re-entry for non-payment of a service charge unless the amount has been finally determined by a tribunal or court, or admitted. Forfeiture threats over a disputed charge are therefore mostly noise, though a section 146 notice should always go straight to a solicitor.
  • Risk: your mortgage conditions almost certainly require service charges to be paid; some lenders, alerted by the freeholder, will pay the arrears themselves and add them to your loan, converting a dispute into a secured debt.
  • Risk: the lease may charge interest and administration fees on arrears, which accrue while you argue.
  • Positioning: paying nothing looks bad at the tribunal. The stronger posture is to pay the undisputed element, state in writing that the balance is disputed and any payment is made without admission, and press the s.21/s.22 requests in parallel.

The LFRA 2024 transparency reforms: enacted, and not in force

You will read in many places that the Leasehold and Freehold Reform Act 2024 has transformed service charge transparency: standardised demand forms, annual reports, a statutory right to information. The provisions exist, in sections 53 to 58: extension of regulation to fixed service charges (s.53), notice of future demands (s.54), standardised service charge demands (s.55), accounts and annual reports (s.56), a right to obtain information on request (s.57) and enforcement (s.58). But as at 15 August 2026, none of them has been brought into force. No commencement regulations cover the service charge transparency block, so the operative regime for any dispute you run today remains the Landlord and Tenant Act 1985 and the 2003 consultation regulations described above.

The safe way to hold this in your head: LFRA 2024 provides for standardised demands and annual reports, but those provisions are not yet in force, and a demand today is tested against the 1985 Act, not the 2024 one. For the full in-force versus not-in-force ledger across the 2024 Act, including the lease extension and ground rent provisions, see our Leasehold and Freehold Reform Act 2024: what is actually in force page. One adjacent regime is already live and worth knowing about if your dispute involves cladding or fire safety costs: the Building Safety Act 2022 leaseholder protections, which cap or extinguish certain remediation charges, covered in our building safety cost recovery guide.

The landlord-leaseholder's angle: tax treatment and what happens at sale

If the flat is let, the service charge is not just a grievance, it is a line in your property business accounts, and the dispute has tax consequences worth getting right.

Deductibility. Service charges on a let flat are a revenue expense, deductible against rental income. HMRC's Property Income Manual at PIM2078 (costs due to common ownership) confirms landlords can deduct expenditure on the upkeep of common parts from property business profits. The ordinary annual charge for cleaning, maintenance, insurance and management is straightforwardly allowable in the year it is incurred.

Reserve funds and major works. Payments into a reserve or sinking fund need more care: the deduction properly follows the fund being applied to revenue-type expenditure, not simply your payment into it, and where the fund is ultimately spent on capital improvement (an enhancement rather than a repair) that slice is not deductible against income at all, though it may enter your capital gains computation instead. A large major-works demand is worth splitting between repair and improvement with your accountant while the invoices and the specification are still to hand.

Disputes, withholding and refunds. An amount you have withheld under genuine dispute has not yet crystallised as an expense, so do not deduct it while it hangs in the air; deduct when the liability is settled or determined. It follows that a refund or credit won at the tribunal for amounts you had already paid and deducted is a recovery of a previously deducted expense, and adjusts your property income in the year it crystallises. Keep the tribunal decision or settlement letter with the tax papers for that year.

At sale. A live dispute surfaces in the LPE1, the leasehold information form your landlord or managing agent completes for your buyer's solicitor, which asks about arrears, disputes and anticipated major works. Expect your buyer's side to want either a retention from your sale proceeds against the disputed or forthcoming amounts, or a price adjustment. None of this stops a sale, but an open-ended dispute makes buyers and lenders twitchy, which is a practical argument for pressing the dispute to a determination or a written settlement rather than letting it drift. For how the running service charge cost sits inside your wider portfolio numbers, our portfolio profitability calculator lets you model it against rent, finance and the rest of your cost stack.

Where to take it from here

Run the sequence in order: check the demand against the s.18 definition and your lease, put the s.21 and s.22 requests in writing, read the accounts with the five-point walkthrough above, and only then decide between negotiation, a s.27A application with a s.20C order attached, or living with the charge because the numbers do not justify the fight. Send the s.21 and s.22 requests this week, because every step after them depends on documents you do not yet hold. Anything involving a forfeiture threat or a s.146 notice goes straight to a solicitor. Where the accounts raise questions you cannot resolve, put them in front of a property tax specialist or accountant and get the overcharge quantified. The leaseholders who win these disputes are rarely the angriest ones; they are the ones who turned the accounts into arithmetic.