What is a reserve or sinking fund, and who controls the money?

In England and Wales, a leasehold reserve fund or sinking fund is part of the service-charge machinery, not a separate statutory product. Scotland and Northern Ireland use different legal structures, so the same words do not always mean the same legal thing.

What is a reserve or sinking fund on a leasehold flat?

A reserve or sinking fund on a leasehold flat is money collected through the service charge and built up for larger future works, usually only if the lease allows it. GOV.UK’s How to lease guide describes it as “a fund of money collected over a budgeted period and set aside to cover the costs of major works such as roof repairs, external decorations or lift replacement works.” That is the practical answer to reserve fund service charge questions: the money is paid before the roof, lift, decoration or similar bill arrives, rather than demanding the whole cost in one year. A reserve fund on a leasehold property is therefore usually planned-maintenance saving, although GOV.UK’s shorter leasehold guide also says it may help cover “unexpected maintenance or repairs, like replacing the roof.” In Scotland, a Development Management Scheme reserve fund is owners’-association money, not the same instrument as an English leasehold service charge.

Who holds the reserve fund money, and what can it be spent on?

A separate bank account is not a blanket legal duty: in England and Wales section 42 of the Landlord and Tenant Act 1987 creates a trust over the money, while section 42A’s designated-account duty is in force only for specified purposes and otherwise remains prospective. Section 42 says service-charge sums and investments “shall (together with any income accruing thereon) be held by the payee either as a single fund or, if he thinks fit, in two or more separate funds,” and ICAEW states that “s42, LTA 1987 does not explicitly require service charge monies to be held in a separate trust or ‘client’ bank account.” The money can be spent only on the lease-authorised matters for which the service charges were payable: section 42 holds it “on trust to defray costs incurred in connection with the matters for which the relevant service charges were payable.” A reserve fund management company therefore controls administration, but not beneficial ownership. Northern Ireland is outside the 1987 Act because “This Act extends to England and Wales only.”

How much should a reserve fund be?

A leasehold reserve fund has no statutory UK pound amount or percentage: in England and Wales advance service charges must be no more than reasonable, and the usual calculation is expected future works cost divided over the years before the work. The Landlord and Tenant Act 1985 says that where a service charge is payable in advance, “no greater amount than is reasonable is so payable,” with later adjustment by repayment, reduction or later charges. GOV.UK adds that “The amount that you may be required to contribute towards the sinking fund is not usually specified in the lease.” The RICS approved code gives the working method: “take the expected cost of future works, including an allowance for VAT and fees, and divide it by the number of years which may be expected to pass before it is incurred.” As a market benchmark, The Property Institute’s 2026 sample put reserve contributions at 16.4% of service-charge budgets, up 26% since 2024.

Is a sinking fund on a freehold property different?

Yes: no statutory sinking fund exists for freehold property in England and Wales, because the leasehold section 42 trust applies where tenants contribute under leases, not where freehold owners pay estate charges. Section 42 applies “where the tenants of two or more dwellings may be required under the terms of their leases to contribute to the same costs,” and HMRC states plainly that “LTA87/S42 does not apply if the funds are paid by freehold owners of a property.” A freehold estate rentcharge is the closest comparison on private estates: government research describes it as something that “resembles a service charge, and is paid by the freehold homeowner whose house lies within a private or mixed tenure estate.” Market advice is split rather than legal: the NRLA suggests budgeting “around 1% of the value of your property,” while Adiuvo’s published figure was £3,832, or 23.6% of annual rent. In Scotland, the Tenements Act default is a job-specific maintenance account with leftovers shared back, while a factor-arranged sinking fund must be interest-bearing and in the homeowners’ group name.

Last reviewed August 2026.

Sources

• GOV.UK, How to lease — “This is normally a fund of money collected over a budgeted period and set aside to cover the costs of major works such as roof repairs, external decorations or lift replacement works.” Source
• GOV.UK, Leasehold property: service charges and other expenses — “You might have to pay into a fund to help cover any unexpected maintenance or repairs, like replacing the roof.” Source
• Development Management Scheme Order 2009, schedule 1 — “‘reserve fund’ means money held on behalf of the association to meet the cost of long term maintenance, improvement or alteration of scheme property or to meet such other expenses of the association as the association may determine;” Source
• Landlord and Tenant Act 1987, section 42 — “Any sums paid to the payee by the contributing tenants, or the sole contributing tenant, by way of relevant service charges, and any investments representing those sums, shall (together with any income accruing thereon) be held by the payee either as a single fund or, if he thinks fit, in two or more separate funds.” Source
• Landlord and Tenant Act 1987, section 42 — “(a)on trust to defray costs incurred in connection with the matters for which the relevant service charges were payable (whether incurred by himself or by any other person), and” Source
• Landlord and Tenant Act 1987, section 42A commencement note — “Ss. 42A, 42B inserted (26.7.2002 for E. for specified purposes, 1.1.2003 for W. for specified purposes and otherwise prosp.) by Commonhold and Leasehold Reform Act 2002 (c. 15), s. 156(1); S.I. 2002/1912, art. 2(c)(subject to Sch. 2); S.I. 2002/3012, art. 2(c)(subject to Sch. 2)” Source
• ICAEW, Residential service charge accounts — “Although s42, LTA 1987 does not explicitly require service charge monies to be held in a separate trust or ‘client’ bank account, it does impose a statutory trust on the person to whom service charges are paid and that person will be liable for any breach of the trust.” Source
• Landlord and Tenant Act 1987, section 62 — “This Act extends to England and Wales only.” Source
• Landlord and Tenant Act 1985, section 19 — “Where a service charge is payable before the relevant costs are incurred, no greater amount than is reasonable is so payable, and after the relevant costs have been incurred any necessary adjustment shall be made by repayment, reduction or subsequent charges or otherwise.” Source
• GOV.UK, How to lease — “The amount that you may be required to contribute towards the sinking fund is not usually specified in the lease.” Source
• RICS Service Charge Residential Management Code, 2016 — “The usual method of working out how much money is to go into the fund each year, assuming the lease/tenancy agreement does not make any other provision, is to take the expected cost of future works, including an allowance for VAT and fees, and divide it by the number of years which may be expected to pass before it is incurred.” Source
• The Property Institute, Service Charge Index Report 2026 — “Reserve fund contributions increased by 26% from 2024 to 2026, and the second largest category with a 16.4% share in the 2026 budget.” Source
• Landlord and Tenant Act 1987, section 42 — “This section applies where the tenants of two or more dwellings may be required under the terms of their leases to contribute to the same costs” Source
• HMRC Property Income Manual PIM1075 — “LTA87/S42 does not apply if the funds are paid by freehold owners of a property or if the landlord is an exempt landlord.” Source
• MHCLG, Leasehold and freehold charges research findings — “The other type is an estate rentcharge, which resembles a service charge, and is paid by the freehold homeowner whose house lies within a private or mixed tenure estate.” Source
• NRLA, Annual home maintenance checklist — “In terms of the cost of annual maintenance, budget to spend around 1% of the value of your property.” Source
• London Loves Property, Adiuvo maintenance fund figure — “As such, the maintenance fund of £3,832 is equivalent to 23.6% of rental income each year.” Source
• Tenements (Scotland) Act 2004, schedule 1 — “(i)any sums held in the maintenance account after all sums payable in respect of the maintenance carried out have been paid shall be shared among the depositors—” Source
• Scottish Government, Property Factors Code of Conduct — “In situations where a sinking or reserve fund is arranged as part of the service to homeowners, an interest-bearing account must be opened in the name of each separate group of homeowners.” Source