Assistant Manager – Indirect tax transformation (E-invoicing)

Grant Thornton UK; Reading; Hybrid; GBP 55,000 - 75,000; Full time

Job summary

Grant Thornton UK is seeking an Assistant Manager to join the Digital Tax Consulting Team, focusing on indirect tax transformation and e-invoicing projects. The role is client-facing, with responsibilities spanning design, requirements gathering, configuration, testing and go-live, while building strong client relationships.

You will work in a hybrid environment across London, Reading and Bristol, delivering global e-invoicing mandates and contributing to ERP and tax solution implementations.

Qualifications

• Experience delivering tax technology or e-invoicing implementation projects in a consulting or in-house tax tech environment.
• Knowledge of e-invoicing and e-reporting regimes across jurisdictions.
• Hands-on experience with implementing/integrating at least one e-invoicing or tax compliance platform.
• Ability to manage budgets and project risks while maintaining quality.
• Strong stakeholder management and client relationship building.

Responsibilities

• Support end-to-end delivery of e-invoicing projects from design to go-live.
• Collaborate with senior team and third-party technology providers.
• Interpret country-specific e-invoicing mandates and translate into delivery actions.
• Assist in managing engagement risk and ensuring regulatory quality standards.
• Support on proposals and bids for new e-invoicing opportunities.
• Help refine delivery methodology and develop reusable accelerators and tools.

Skills

Tax technology delivery

E-invoicing knowledge

Platform integration

Budget & risk management

Stakeholder management

Teamwork and independence

Engagement risk & quality

Education

CTA/ACA/ACCA or equivalent

Tools

ERP (Oracle)

Microsoft Dynamics

SAP S/4HANA

Alteryx/Power BI

Job description

Alternatively, Grant Thornton

At Grant Thornton we do things differently - looking to the future, driving ambitious growth and pioneering positive change in our industry. Providing audit, tax and advisory services, we empower clients through strategic insight, curiosity, and genuine partnership. And we empower our people with real opportunity, an inclusive culture and work life balance. A true alternative.

With over 5,000 people in the UK, and a presence in 150 global markets, we're on an ambitious journey, from great to exceptional, and we need the best people to help us achieve our potential. And with that comes the opportunity to help redefine what our industry looks like, and what you want from your career.

Job Description:

Assistant Manager – Indirect tax transformation (E-invoicing)

Location: London/Reading/Bristol (hybrid)

Level: Assistant Manager

Team: Digital Tax Consulting Team (Indirect tax transformation and technology)

Role Overview

We're looking for an indirect tax transformation assistant manager with a primary focus on supporting the delivery of e-invoicing projects within our growing Digital Tax Consulting team. This is a client-facing role initially focusing on global e-invoicing and e-reporting mandates but will also provide the opportunity to grow and support other areas of our transformation business as required i.e. implementation of VAT solutions, working on ERP programs.

As an assistant manager, you will support as part of the team on the end-to-end delivery of e-invoicing engagements – from solution selection/design through to requirements gathering, configuration, testing and go-live while helping the team with building client relationships.

What You Will Do

• Support with the end-to-end delivery of e-invoicing projects, managing scope, budget, risk and quality across the full project lifecycle
• Support and help the senior team where required in maintaining alliances with third party technology providers
• Interpret country-specific e-invoicing mandates globally, including data and process impact/requirements and translating them into practical delivery actions for clients as part of projects
• Support the senior team on managing engagement risk and quality: apply firm policies and procedures, maintain appropriate documentation, and ensure compliance with internal quality standards and external regulatory expectations
• Support with new e-invoicing opportunities, along with supporting on proposals and bids
• Strengthen the wider practice — help the team in refining delivery methodology and support in building reusable accelerators and tools

Essential

Key skills and experience

• Experience delivering tax technology or e-invoicing implementation projects in a consulting, professional services, or in-house tax technology environment
• Knowledge of e-invoicing and e-reporting regimes and the ability to speak credibly about how mandates differ across jurisdictions
• Hands‑on experience with supporting the implementation/integration of at least one e‑invoicing or tax compliance/or similar platform
• Proven ability to problem solve, support with managing budget and risk/quality on projects
• Strong stakeholder management both internal and external
• Ability to work well with as part of a team, but also able to work independently
• Understanding of engagement risk, quality standards and regulatory expectations in a professional services environment

Additional Advantageous Experience

• Professional tax or accounting qualification (e.g. CTA, ACA, ACCA) or equivalent
• ERP experience (Oracle, Microsoft Dynamics, SAP S/4HANA) specifically for tax or e-invoicing purposes
• Experience with global rollout programmes spanning multiple countries and jurisdictions
• Broader indirect tax technology exposure – VAT compliance solutions, Tax engines etc.
• Familiarity with data analytics or automation tools (Alteryx, Power BI, SQL, Python) to support e-invoicing data validation and repo