Limited company buy-to-let running costs include property management, repairs, insurance, safety compliance, leasehold charges and company administration, as well as the mortgage. Budget for empty periods, future replacements and tax before treating rent as spendable income. A property can cover its monthly loan payment while leaving too little cash to maintain the building or pay its company bills.
This guide covers a UK limited company holding an ordinary long-term residential rental, with landlord-compliance examples focused on England. Wales, Scotland and Northern Ireland have different tenancy and licensing rules. Holiday lets and houses in multiple occupation need separate budgets. Official figures were checked on 2 October 2026.
Start with three separate budgets
The useful question is: will this property support itself after realistic running costs, and how much money must remain inside the company? Answer it with three schedules:
- Acquisition: the deposit, transaction taxes, legal work, survey, initial refurbishment and setup charges.
- Annual operations: rent actually expected, mortgage payments, property bills, company overhead and tax payments.
- Future spending: replacement appliances, major repairs, leasehold works and refinancing costs.
Keeping acquisition costs outside the annual budget does not make them disappear. They still matter when measuring the return on your invested cash. Likewise, expected house-price growth cannot pay an insurance renewal unless you sell or borrow more.
Limited company buy-to-let running costs to include
| Cost category | What to include | What to obtain |
|---|---|---|
| Company administration | Accounts, Company Tax Return, bookkeeping, software, bank charges and filing support | A written quote stating what is included and whether VAT is additional |
| Letting and management | Management, tenant finding, inventory, check-out and separately billed work | The complete fee schedule and cancellation terms |
| Insurance | Buildings cover where required, landlord liability, contents and optional legal or rent protection | Cover limits, excesses, exclusions and unoccupied-property conditions |
| Maintenance | Actual routine repairs, servicing, decoration and appliance replacement | Condition reports and contractor estimates |
| Compliance | Inspections, certificates, alarms, remedial work and applicable licensing | A property-specific schedule with expiry dates |
| Leasehold costs | Service charges, ground rent where payable and major-works demands | The lease, recent accounts, current budget and planned works |
| Empty periods | Lost rent, utilities, council tax where payable and preparation for reletting | Local letting evidence and responsibility for each bill |
Company overhead is a separate layer
An accountant's package may cover annual accounts and the Company Tax Return but exclude bookkeeping, payroll, tax planning, a registered-office service or your personal return. Ask about each item instead of comparing headline monthly prices.
At the check date, the Companies House fee schedule lists the confirmation statement fee as £50 online or through software, payable with the first statement in the 12-month payment period; paper filing is £110. An agent may charge separately for preparing and submitting it.
Allocate shared overhead sensibly. One company with several properties may spread some administration across them. Several separate companies can duplicate work and charges. Ask for the quote for your intended ownership structure.
Read the agent's fee basis
A percentage is incomplete without its charging basis. Is it applied to rent collected or rent due? Does it include VAT? Are inspections, tenant finding and arranging repairs included? Is there a minimum charge during a void?
For illustration, an all-inclusive fee of 12% on £16,500 collected rent costs £1,980 annually. That is an assumed contract price, not a market average. Budget the full invoice amount unless your accountant confirms a recoverable element.
Self-management can reduce the invoice but transfers viewings, administration and emergency coordination to you. Record both the cash saving and the hours required before deciding it improves the investment.
Separate routine repairs from large future bills
A repair allowance should reflect the property's condition. A recently refurbished flat and an older house with a tired roof should not receive identical budgets simply because their rents match.
For a leasehold flat, check whether the service charge already includes buildings insurance or a reserve contribution. Avoid budgeting the same cover twice, but do not assume the block's reserve will cover every future demand.
Budget for compliance work, not just certificates
In England, applicable landlord duties include safety, deposit protection and providing an Energy Performance Certificate. Use the government's landlord responsibilities guidance as a starting point, then check the council's requirements for the exact address and use.
Where relevant gas appliances and flues are supplied, budget for the annual gas safety check. England's electrical safety guidance requires installation inspection and testing at least every five years, or sooner where required. An inspection charge does not include every repair it may reveal.
Ask whether selective or additional licensing applies. Include application costs, renewal timing and any work needed to meet conditions. For future regulatory changes, distinguish a confirmed obligation and effective date from a proposal before entering a compulsory cost.
Worked example: £1,500 rent does not mean £750 profit
Illustrative annual planning scenario, not market averages: one leasehold flat in England, owned by one company, with advertised rent of £1,500 a month and an interest-only mortgage payment of £750 a month. Assume one month without rent and an agent charging 12% of rent collected, inclusive of VAT.
The figures below are invented budgeting inputs except the £50 digital confirmation statement fee. They assume no rent arrears in occupied months. Buildings insurance is included in the service charge; the separate insurance line covers other landlord risks. Obtain actual quotes before using this model.
| Annual item | Calculation or assumption | Amount |
|---|---|---|
| Potential rent | £1,500 × 12 months | £18,000 |
| Lost rent during vacancy | £1,500 × 1 month | −£1,500 |
| Expected collected rent | £18,000 − £1,500 | £16,500 |
| Management | 12% × £16,500 | −£1,980 |
| Accounts and tax-return preparation | Assumed annual invoice including applicable VAT | −£1,200 |
| Other landlord insurance | Assumed annual premium | −£360 |
| Compliance spending | Assumed checks and minor remedial work this year | −£300 |
| Routine repairs | Expected actual expenditure this year | −£900 |
| Service charge and ground rent | Assumed combined annual demand | −£1,800 |
| Company filing and administration | £50 filing fee + £120 other administration | −£170 |
| Total non-mortgage operating spending | Management plus the six fixed-cost lines | −£6,710 |
| Mortgage payments | £750 × 12 months | −£9,000 |
| Cash surplus before tax and extra reserve | £16,500 − £6,710 − £9,000 | £790 |
| Additional future-repairs allocation | £100 × 12 months | −£1,200 |
| Surplus or funding gap after allocation, before tax | £790 − £1,200 | −£410 |
The reserve allocation remains company cash until spent; it is not an additional repair invoice. The negative £410 means the year's cash generation cannot fund the chosen reserve in full. Tax payments would increase that shortfall.
This deliberately simplified example excludes acquisition costs, refinancing charges, major works, owner withdrawals and Corporation Tax. It also assumes no separately billed tenant-finding fee, licensing fee or landlord-paid void utilities or council tax. Add those where applicable. The £1,200 reserve covers future items not already funded by the assumed service charge.
Find the break-even rent and test a worse year
Here, fixed annual operating spending excluding management is £4,730. To cover that spending, the mortgage and the chosen reserve, the rent must satisfy:
Required monthly rent = (£4,730 + £9,000 + £1,200) ÷ [11 collected months × (1 − 0.12)] = £1,542.36, rounded.
This is a cash-planning threshold before tax, not a valuation or permission to increase rent. It assumes unchanged costs and the same agent fee structure. If comparable homes support only £1,500, the model needs lower costs, less borrowing, additional funding or a different purchase price.
| Scenario at £1,500 monthly rent | Collected rent | After operating spending, mortgage and £1,200 allocation; before tax |
|---|---|---|
| 12 months collected | £18,000 | £910 |
| 11 months collected | £16,500 | −£410 |
| 10 months collected | £15,000 | −£1,730 |
Only management changes with collections in this comparison. An additional £2,500 repair in the ten-month scenario makes the funding gap £4,230 if you also preserve the full reserve allocation. If you use existing reserves instead, record that drawdown explicitly rather than counting both the repair and the reserve use as separate expenses.
Annual totals also hide timing. Put mortgage dates, insurance renewals, service-charge demands and tax payments into a monthly calendar. The required opening cash buffer is the amount needed to survive the largest cumulative shortfall, plus the contingency you choose.
Cash flow, taxable profit and personal income are different
Under HMRC's rental-property tax guidance, companies can generally claim qualifying property-loan interest and allowable running expenses. Capital improvements are different from ordinary repairs. Simply moving money into a savings pot does not create a deductible expense.
With a repayment mortgage, include the full payment in the cash budget, but distinguish interest from principal for tax calculations. Do not use the example's £790 cash surplus as an automatic taxable-profit figure: expense recognition, capital items and other adjustments may change it.
The Corporation Tax rates checked on 2 October 2026 are 19% for qualifying small profits and a 25% main rate, with marginal relief potentially available between the standard £50,000 and £250,000 thresholds. Short accounting periods and associated companies reduce those thresholds.
Do not assume every investment company qualifies for the small-profits treatment. HMRC's close investment-holding company rules distinguish, among other things, property held for unconnected letting. Ask your accountant to confirm your company's position, especially for connected-party occupation or mixed activities.
Finally, money retained by the company is different from money available for household spending. Taking money out of a limited company requires an appropriate route and records. Dividends require available profits, are not a Corporation Tax deduction and may create personal tax. Model that second stage if the property is intended to fund your living costs.
Higher-value properties: check ATED administration
Annual Tax on Enveloped Dwellings, or ATED, can apply to company-owned UK residential property valued above £500,000 under the relevant valuation rules.
Commercial property-rental relief may reduce the charge to nil where its conditions are met, including restrictions on connected-person occupation or availability. A nil charge through relief still requires a Relief Declaration Return. Budget for any professional work needed rather than assuming “rented out” means no filing.
Before committing, collect five pieces of evidence
- The full agent contract: fee basis, VAT, extras, minimum charges and exit terms.
- A company-specific accountant quote: accounts, tax return, bookkeeping, filing support and any ATED work.
- A property condition and compliance schedule: checks due, required works and realistic contractor prices.
- Leasehold and insurance documents: current demands, existing cover, reserve balances and planned major works where relevant.
- A monthly cash forecast: realistic rent collection, mortgage payments, taxes, reserve funding and a downside scenario.
Replace the example's inputs with those documents. If the company cannot cover the downside without money you are unwilling or unable to contribute, revise the deal before proceeding. A structure's potential tax benefits should be assessed after the property's operating costs are visible.
This article is for educational purposes. Tax treatment and landlord obligations depend on the company, property, jurisdiction and circumstances; obtain advice for your proposed transaction.
