Tax Manager in Slough

Dext is the world-leader in bookkeeping automation, using data, technology and applied AI to make accountants, bookkeepers and businesses more productive and efficient. Dext is used by accountants, bookkeepers, and finance leaders, along with business owners, directors, and office or operations managers, to capture receipts, automate data entry, and streamline bookkeeping. Over 700,000 businesses and 12,000 accounting and bookkeeping firms worldwide rely on Dext to eliminate manual admin and free up time for higher-value, advisory work.

For over a decade, Dext has pioneered the digitalisation of bookkeeping, liberating businesses to focus on what matters to them. With simplicity and innovation at the core of everything we build, we enable our customers to make better, faster decisions with confidence in their numbers.

Dext is part of IRIS Software Group, one of the UK's leading privately held software companies, giving you the scale, structure and career opportunities of a major group alongside the pace and focus of a specialist product business. We're proud to be an officially certified Great Place to Work and one of the UK's Best Workplaces for Women, reflecting our commitment to wellbeing, diversity, inclusion, trust, and reward.

Why This Role Matters

As a Tax Manager, you'll take ownership of tax and statutory compliance for Dext across a genuinely international footprint - the UK, Bulgaria, South Africa, Australia, US, Canada, New Zealand, Singapore and France. This is a rare opportunity for a tax professional stepping into their first standalone management role, offering both broad autonomy and the mentorship of the IRIS Group Head of Tax. Around a fifth of your time will also connect you to Group-level tax strategy, giving you visibility well beyond a typical in-house role.

What You'll Do

• Own end-to-end multi-jurisdictional tax compliance across nine countries, including corporation tax, VAT/GST, withholding tax, transfer pricing and R&D tax credits.
• Act as the key liaison between Dext and its external tax advisors globally, translating technical detail into practical guidance for the business.
• Prepare the UK corporate tax return in-house, alongside tax provisions and cash tax forecasting.
• Contribute to Group-wide tax matters (c. 20% of role), including Pillar Two, Corporate Criminal Offence compliance, transfer pricing policy and M&A tax due diligence.

What We're Looking For

• 2–3 years' tax compliance experience, with some exposure to multi-jurisdictional obligations.
• CTA, ACA, ACCA or CPA qualified, part-qualified, or qualified by experience, with strong corporate tax knowledge and working familiarity of VAT/GST.
• Confidence to operate independently, with sound judgement on when to escalate to senior stakeholders.

Why You'll Love Working Here

• Impact: Your work will influence millions globally.
• Growth: Continuous learning and career development opportunities, backed by direct mentorship from senior tax leadership.
• Belonging: A culture that celebrates diversity and empowers every individual.

What to Expect

Our interview process is designed to be fair, inclusive, and transparent:

1. Application Review – We'll assess your experience and potential.
2. Initial Conversation – A Talent Acquisition Interview to learn more about you and share details about the role. We will also assess how you meet the essential criteria required to be successful within the role.
3. Skills Assessment – Panel Interview.
4. Final Interviews – Meet the team and discuss how you can make an impact.

If you need adjustments during the process, let us know. We're committed to making this opportunity accessible to everyone.

Please note: We occasionally close vacancies early in the event that we receive a high volume of applications. Therefore we recommend you apply as soon as possible.