[ Accountants Harrow · HA1 / HA2 ]

Accountants Harrow

We provide construction-specialist accounting to builders, contractors and developers across Harrow, HA1 and HA2 — covering CIS, corporation tax, VAT, payroll and bookkeeping.

Local

Harrow and HA1 / HA2

Construction

Built for the trades

CIS

Subcontractor compliance

Tax

CT600 and self assessment

Harrow and the HA1/HA2 area are home to a wide range of construction businesses, from sole trader tradespeople to established contracting companies. We provide accounting that is built specifically for the construction sector — covering CIS, corporation tax, self assessment, VAT, payroll and bookkeeping.

Whether you are a subcontractor working across North West London or a developer with projects in Harrow, we keep your filings on time, your tax bill as low as legitimately possible, and your bookkeeping accurate enough to give you real job-by-job profit figures.

[ What We Handle ]

Accountants Harrow — the full scope.

  • ◢CIS registration, verification and monthly returns
  • ◢Corporation tax (CT600) for Harrow building companies
  • ◢Self assessment for sole traders and subcontractors
  • ◢VAT registration and returns for construction
  • ◢Bookkeeping with job and project costing
  • ◢Payroll and CIS for subcontractor labour

Serving Harrow, Harrow on the Hill and the wider HA1 / HA2 area.

[ Frequently Asked Questions ]

Accountants Harrow — your questions answered.

Do you work with builders in Harrow and HA1/HA2?

Yes. We work with sole traders, subcontractors and limited companies across Harrow, Harrow on the Hill and the wider HA1/HA2 area. We provide construction-specialist accounting including CIS, corporation tax, self assessment, VAT, bookkeeping and payroll.

How much does an accountant cost for a Harrow builder?

Our packages start from £49 per month for a new limited company and go up to £450+ per month for a full finance package. Most established contractors choose our Construction Pro package at £108 per month. Book a free review for a fixed quote.

Can you help with CIS returns in Harrow?

Yes. We register contractors and subcontractors with HMRC, verify subcontractors, file monthly CIS300 returns, and reclaim over-deducted CIS tax through self assessment. We work with builders across Harrow and North West London.

Ready to talk to a specialist?

Book a free financial site review and we'll review your CIS, tax and accounts — no obligation.

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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