CIS and construction accountants · London

CIS accountants in London for subcontractors, contractors and construction companies

Fixed-fee tax returns, CIS refunds and company accounts for subcontractors, contractors and construction companies across London. Talk to a Chartered Certified Accountant by phone, email or WhatsApp.

  • CIS tax returns from £150 inc VAT
  • Monthly CIS returns and company accounts
  • Call, email or WhatsApp a qualified accountant
Get a fixed-fee quoteCall 0161 531 4179
CIS tax return in London
£150 per year, from
Price includes VAT
  • Every deduction statement reconciled
  • Tools, van and mileage claimed
  • Refund estimate before we file
See CIS packages
★★★★★ Rated 4.5 on Trustpilot
★4.5 TrustScore on Trustpilot
£Fixed fees, VAT included
📍Serving London and the Home Counties
💬Phone, email and WhatsApp

Chartered Certified Accountants you can trust

Fully registered and compliant to act on your behalf.

Chartered Certified AccountantsHMRC registered tax agentCompanies House ACSPData Protection registration No. ZB868558Fully AML compliantFixed fees, VAT included
Who we help

Construction clients we work with in London

From one-person trades to growing building companies.

CIS subcontractors

Bricklayers, electricians, plumbers, plasterers, joiners, roofers and labourers who have tax deducted at 20%.

Contractors

Builders and developers who pay subcontractors and must verify them and file monthly returns.

Construction limited companies

Companies that suffer CIS deductions, run payroll and pay corporation tax.

Gross payment status

Businesses that want to be paid gross, or keep the status they have.

Packages & prices

CIS packages

Fixed fees for subcontractors, plus tailored packages for contractors and companies.

CIS Starter
For subcontractors with one or two contractors and simple expenses.
£150
per tax year · incl. VAT
  • Self Assessment tax return
  • CIS deductions reconciled
  • Expenses review
  • Refund estimate before filing
  • HMRC queries handled
Get started
Most popular
CIS Plus
For busier subcontractors with several contractors, a van and more expenses.
£250
per tax year · incl. VAT
  • Everything in Starter
  • Multiple contractors & statements
  • Vehicle and mileage claims
  • Tools and equipment capital allowances
  • Payments on account check
  • Phone support
Get started
Contractors & companies
For businesses that pay subcontractors or trade as a limited company.
Quote
fixed monthly fee
  • Subcontractor verification
  • Monthly CIS300 returns
  • Payment and deduction statements
  • CIS reclaims via EPS for companies
  • Domestic reverse charge VAT
Request a quote

Missing CIS statements? We can request the details from HMRC and your contractors. All prices include VAT.

CIS accountants for London’s construction trades

London has more construction work than anywhere else in the UK, from large regeneration schemes in places like the Royal Docks, Old Oak Common and Brent Cross to the loft conversions, extensions and refits that keep local trades busy in every borough. Most of that work is done by CIS subcontractors, and most of them have too much tax taken off.

We help subcontractors in all 32 boroughs, from Croydon to Enfield and Hillingdon to Havering, claim back what they are owed. We reconcile every payment and deduction statement against HMRC’s records and claim every allowable cost, including tools, protective clothing, your van, mileage, phone and training.

London costs you can claim

Working in London brings costs that many subcontractors forget. Congestion Charge and ULEZ charges paid for business journeys are allowable expenses, as is business parking. Parking fines and penalty charge notices are not. Travel to temporary sites is usually allowable, but daily travel to one long-term site may not be. We explain what counts so your claim is right first time.

Contractors and companies

If you pay subcontractors, you are a CIS contractor. Since 6 April 2026 you must file a monthly return even when you have paid no one, and HMRC can now pursue businesses that should have spotted fraud in their supply chain. We handle verification, monthly returns, statements and supply chain checks, and we look after accounts, payroll and corporation tax for London construction limited companies.

Our office is at 128 City Road, London EC1V 2NX. Call 0161 531 4179, email enquiries@wingateaccountants.co.uk or message us on WhatsApp.

Construction workers in hard hats and safety vests on a UK building site
✓ Fixed feeagreed before we start
★ 4.5 TrustpilotTrustScore
Construction limited companies

What we do for construction companies in London

One fixed monthly fee, agreed before we start.

Accounts and corporation tax

Year-end accounts for Companies House and your CT600 return, with every allowance claimed.

CIS reclaims through payroll

Deductions your company suffers are set against PAYE through the monthly EPS, so you are not waiting for a refund.

Director payroll and dividends

A tax-efficient mix of salary and dividends, with payroll and RTI filings done for you.

VAT and the reverse charge

VAT returns under Making Tax Digital and correct domestic reverse charge invoices.

Subcontractor checks

HMRC verification and supply chain due diligence that stands up to the 2026 fraud rules.

Monthly CIS returns

Every return filed by the 19th, including nil returns, with statements for your subcontractors.

Why Wingate

Why clients choose Wingate

Transparent fixed fees

Transparent pricing, confirmed in writing before any work begins. No hourly charges and no surprises.

Dedicated accountant

Work directly with a qualified accountant who knows your affairs, never a call centre.

Responsive support

Responsive support by phone, email and WhatsApp, with clear advice in plain English.

Cloud-friendly

Experienced with Xero, QuickBooks, FreeAgent and Sage, as well as spreadsheet records.

Client reviews

Trusted by clients across the UK

★★★★★

“As someone new to self-employment, I appreciated their patience and clear explanations when filing my tax return.”

New self-employed client · Trustpilot
★★★★★

“Wingate have processed my tax returns for some years now & I am more than happy with service provided.”

Long-standing tax return client · Trustpilot
★★★★★

“Professional and reassuring when dealing with my CGT obligations. I’d definitely use Wingate again.”

Capital Gains Tax client · Trustpilot

Read all our reviews on Trustpilot →

FAQs

Frequently asked questions

Do you work with CIS subcontractors in London?
Yes. We prepare Self Assessment tax returns for CIS subcontractors across London and the Home Counties, reconcile every deduction statement and reclaim any tax overpaid. Fixed fees start at £150 including VAT.
How quickly can I get my CIS refund?
Once your return is filed, HMRC usually repays within a few weeks if everything matches its records. We check your statements before filing to avoid delays.
Can you run CIS for my construction company?
Yes. We verify subcontractors, file monthly CIS returns (including nil returns since April 2026), issue statements and reclaim deductions suffered by your company through payroll.
Should I set up a limited company for my building work?
It depends on your profits, how you want to take money out and the extra admin. We run the numbers for you as a sole trader and as a company before you decide.
Can I claim ULEZ and Congestion Charge as a subcontractor?
Yes, charges paid for business journeys are allowable expenses. Penalty charges and parking fines are not allowable.
Where is your London office?
Our registered office is at 128 City Road, London EC1V 2NX.

Speak to a CIS accountant in London

Share a few details and a qualified accountant will reply with a fixed-fee proposal, usually within one working day. All prices include VAT.

Request your quoteWhatsApp 0161 531 4179
📞Contact us

★★★★★ Client reviewsWhat our clients say

Software we work with

Our partners

We work with the UK’s leading accounting and tax software, so you can keep the tools you know, or we can help you choose and move to the right one.

  • FreeAgent logo
  • Xero logo
  • Pandle logo
  • QuickBooks logo
  • Sage logo
  • TaxCalc logo
  • CloudConnect logo
  • Zoho logo
Making Tax Digital readyCloud bookkeeping set up for youHelp switching software

Wingate Accountants Ltd is an independent firm of Chartered Certified Accountants, providing tax and compliance services to individuals and businesses across the UK.

✔ HMRC Registered Tax Agent
✔ Companies House ACSP (Authorised Corporate Service Provider)
✔ Data Protection registration No. ZB868558
✔ Fully AML compliant

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Contact Us

Hours

Monday to Friday : 09:00 – 17:00 Saturday & Sunday : Closed

Copyright © 2026 Wingate Accountants Ltd · Chartered Certified Accountants · Registered in England & Wales No. 15494836 · All rights reserved.