[ Chartered Accountants for the Built Environment ]

Construction Accountants London

We are specialist chartered accountants for the London construction sector. From sole traders to limited companies, we handle corporation tax, self assessment, CIS, VAT and bookkeeping — engineered for builders, contractors and developers.

CT600

Corporation tax filed on time, every time

CIS

Subcontractor compliance built in

VAT

Construction VAT and flat-rate expertise

Bookkeeping

Job costing and cashflow clarity

Construction is one of the most heavily regulated sectors in the UK tax system. Between the Construction Industry Scheme, reverse-charge VAT, seasonal cashflow, and the constant juggle of subcontractors and PAYE staff, a generic accountant simply does not understand the day-to-day reality of running a building business. That is why we work exclusively with construction — from one-person subcontractors to established developers turning over seven figures.

Our approach is structural. We do not just file your returns at year-end and disappear. We set up your bookkeeping so that job costing, CIS deductions and VAT are tracked from the first invoice. We plan your corporation tax and self assessment throughout the year, not in a panic in January. And we make sure every allowable expense — from plant hire to vehicle costs to PPE — is claimed so you never pay a penny more tax than you owe.

Based in London and working with builders across the capital, we know the local subcontractor networks, the suppliers, and the way London construction businesses actually operate. Whether you are a sole trader bricklayer in Southall or a limited company developer in Wembley, we tailor our service to the size and complexity of your operation.

[ What We Handle ]

Construction Accountants London — the full scope.

  • ◢Corporation tax (CT600) filing and marginal relief planning
  • ◢Self assessment tax returns for sole traders and subcontractors
  • ◢CIS registration, verification and monthly returns
  • ◢VAT registration, returns and flat-rate scheme reviews
  • ◢Construction bookkeeping with job and project costing
  • ◢Statutory company accounts, balance sheets and P&L

[ Frequently Asked Questions ]

Construction Accountants London — your questions answered.

Why do construction businesses need a specialist accountant?

Construction has unique tax rules that a generic accountant will rarely handle well — the Construction Industry Scheme (CIS), reverse-charge VAT, job costing, and seasonal cashflow all require specialist knowledge. A construction accountant understands how your income and expenses actually work, which means fewer mistakes, more tax saved, and no surprises at year-end.

How much do construction accountants in London charge?

Our packages start from £49 per month for a new limited company needing basic accounts and CT600 filing, up to £450+ per month for a full finance package covering bookkeeping, VAT, CIS, payroll, accounts and tax. Most established contractors choose our Construction Pro package at £108 per month. Add-ons like VAT returns and CIS returns are priced separately so you only pay for what you need.

Do you handle CIS registration and monthly returns?

Yes. We register contractors and subcontractors with HMRC, verify every new subcontractor before they are paid, prepare and file the monthly CIS300 return, and issue deduction statements to your subcontractors. We also reclaim over-deducted CIS tax through self assessment for subcontractors who have had too much tax deducted.

Can you take over from my current accountant?

Absolutely. We handle the handover professionally — we contact your previous accountant, obtain your records and prior-year filings, and review everything to make sure nothing has been missed. Most transitions take two to three weeks and you do not have to manage the process yourself.

Do you work with sole traders or only limited companies?

Both. We work with sole traders, partnerships, and limited companies across the construction sector. Sole traders typically need self assessment and CIS support; limited companies need CT600, company accounts, payroll and director self assessment. We will recommend the right structure and the right package for your business.

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LCA
London Construction Accountants

Specialist chartered accountants for the UK construction sector. Tax returns, balance sheets and P&L statements engineered with structural precision.

© 2026 London Construction Accountants

Registered in England · Companies House No. 09727669

HMRC Registered Agents

◢ 31 JAN — Self assessment deadline◢ 31 MAR — CT600 Q4 (year-end Dec)◢ 30 JUN — First CT payment on account◢ 31 OCT — Paper self assessment deadline◢ 31 JAN — Self assessment deadline◢ 31 MAR — CT600 Q4 (year-end Dec)◢ 30 JUN — First CT payment on account◢ 31 OCT — Paper self assessment deadline◢ 31 JAN — Self assessment deadline◢ 31 MAR — CT600 Q4 (year-end Dec)◢ 30 JUN — First CT payment on account◢ 31 OCT — Paper self assessment deadline