Construction & Engineering Business Tax & Accountancy Services

CONSTRUCTION & ENGINEERING

Construction and engineering finances have rules of their own. At TaxDigit, chartered certified accountants in Guildford, Surrey, our construction accountants support building contractors, subcontractors, civil and structural engineering firms, electricians, plumbers, groundworkers, developers and trades businesses across the UK.

From Construction Industry Scheme (CIS) registration, verification and monthly returns to the VAT domestic reverse charge, retentions, work-in-progress and long-term contract accounting, we keep your compliance tight and your cash flow visible — on every project, every month.

The problems we solve for you

Margins in construction are won or lost in the detail. We keep the detail right.

• CIS headaches — contractor and subcontractor registration, verification, monthly CIS returns and reclaiming CIS deductions.
• Reverse-charge VAT confusion — invoices, returns and software set up correctly for the domestic reverse charge.
• Unclear project profitability — job costing, work-in-progress and retentions tracked so you know which contracts make money.
• Gross payment status — applications and compliance reviews so deductions stop eating your cash flow.

Why construction firms choose TaxDigit

We understand site life and head-office pressure alike — and we build reporting that works for both.

• Hands-on CIS experience for contractors, subcontractors and developers.
• R&D tax relief claims for engineering design and technical problem-solving.
• Cloud bookkeeping and payroll that cope with mixed workforces — PAYE, CIS and self-employed.
• Chartered certified accountants serving Guildford, Surrey, London and the whole UK.

Accountancy built on solid foundations

Whether you are a one-van subcontractor reclaiming CIS deductions or an engineering company running multi-year contracts, TaxDigit delivers bookkeeping, VAT, payroll and CIS, corporation tax, management accounts and tax planning as one joined-up service.

Who we help

• Building contractors and subcontractors — CIS, gross payment status and cash-flow planning.
• Civil, structural, mechanical and electrical engineering firms — long-term contract accounting and R&D relief.
• Electricians, plumbers, roofers, groundworkers and specialist trades.
• Property developers and design-and-build companies — project finance, VAT on land and buildings, and SDLT awareness.
• Architects, surveyors and construction consultants.

Frequently asked questions

Do you handle CIS registration and monthly returns?

Yes — we register contractors and subcontractors, verify subcontractors, file monthly CIS300 returns and make sure deductions are correct and reclaimed promptly.

How does the VAT domestic reverse charge affect my invoices?

For most supplies between VAT-registered construction businesses, the customer accounts for the VAT. We set up your invoicing and software so every invoice is worded and coded correctly.

Can I get my CIS deductions refunded?

Subcontractor companies offset CIS deductions against PAYE and reclaim any surplus after year-end; sole traders reclaim through self-assessment. We chase every pound back.

Can engineering firms claim R&D tax relief?

Often, yes — resolving technical uncertainty in design, materials or processes can qualify. We prepare robust, defensible claims under the merged R&D scheme.