International Tax for Engineering, Construction & Infrastructure

Direct answer: engineering and construction projects can create taxable presence before a local entity is formed. Tender terms, project duration, consortium structures, services, equipment, mobile employees, withholding and profit attribution should be modelled before pricing and mobilisation—not after the project margin is fixed.

Key cross-border tax risks

• Construction, installation and project permanent establishments

• Consortium, joint-venture, branch and subsidiary structures

• Engineering, design, procurement and management services

• Equipment, mobilisation, leasing and recharge models

• Withholding taxes, registrations and indirect tax

• Mobile workforce, payroll, immigration and social-security coordination

What changes the tax result

What activities occur before the site opens?

Tendering, surveys, design, negotiations and early mobilisation can create activity, withholding and registration exposure before construction formally begins.

How long and where is the project performed?

Project duration, connected contracts, recurring teams, equipment and premises affect permanent-establishment and profit-attribution outcomes.

Which entity performs design, procurement and management?

The contract and transfer-pricing model should reflect who employs people, controls deliverables, bears warranty and completion risk and owns equipment.

Are project taxes included in the bid?

Withholding, payroll, customs, indirect tax, branch remittance and local filing costs can materially change the project margin if they were omitted from pricing.

Worked scenario

An Australian engineering firm wins a two-year infrastructure contract in Indonesia through a consortium. Australian designers, project managers and equipment are mobilised while a local company handles labour and procurement.

The review must test the consortium and project permanent establishment, attribute design and construction profit, price equipment and management services, model withholding and payroll, and ensure the bid and contracts allocate tax risk correctly.

Evidence to assemble

• Tender, consortium, project and customer contracts

• Project schedules, connected contracts and site records

• Design, procurement, management and equipment agreements

• Employee, contractor, payroll, travel and immigration data

• Withholding, customs, GST or VAT and local registrations

• Bid assumptions, budgets and tax clauses

How Extax helps

Extax supports tender-stage modelling, project and consortium structures, permanent establishments, transfer pricing, equipment and service charges, withholding, payroll, financing and project exits. Existing projects can also be reviewed where tax was not fully priced.

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Ex Big 4 | International Tax

Published and technically updated 28 July 2026.

This page provides general information only. Construction, engineering, procurement, labour, licensing and local tax requirements must be confirmed in each country.