---
title: 'Senior Manager,  Corporate Tax at Unity Advisory'
canonical: 'https://feeny.ai/job/senior-manager-corporate-tax-unity-advisory-united-kingdom-0xpm5tcxjgh7'
type: 'job'
last_seen: '2026-10-30'
---

# Senior Manager,  Corporate Tax at Unity Advisory

- **Company:** Unity Advisory
- **Location:** United Kingdom
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-10-21
- **Last confirmed live:** 2026-10-30
- **Apply:** https://jobs.ashbyhq.com/unity-advisory/fbbb9457-4b89-4fb4-8f60-13ee412eb840

## Job description

## About Unity Advisory

Unity Advisory is a modern advisory business built for today's CFO, with connected solutions across finance, deals and tax. Focussed on client outcomes, seasoned experts lead every engagement, in an operating model powered by AI and free from audit conflict.

## The Role

We’re looking for Senior Managers (based in either our London or Manchester offices) to play a vital role in growing Unity Advisory’s corporate tax practice. You’ll own senior client relationships and lead complex advisory engagements, supporting Heads of Tax, CFOs and business leaders on structuring, transactions and tax strategy. Technology and AI are built into how we work. You’ll use digital tools to strengthen analysis, improve delivery and give clients clearer insight, combining these capabilities with sound technical judgement. Working closely with our Partners, you’ll shape our offering, develop the team and win new work.

## Responsibilities

- Embed AI, automation and data analysis into delivery, improving efficiency and quality while maintaining rigorous technical review.
- Own a portfolio of corporate tax clients, leading advisory engagements and overseeing compliance delivery.
- Advise on corporate structuring, reorganisations and tax planning, bringing in international and specialist expertise where needed.
- Lead technical reviews and manage complex tax issues, risks and HMRC enquiries.
- Work with M&A Tax and Deals colleagues on transactions and post-deal integration.
- Grow client relationships, identify opportunities across Unity and lead proposals and pitches.
- Develop Managers and junior colleagues, taking responsibility for engagement quality, budgets and profitability.

## Qualifications and experience

- Confidence using digital tools and a practical interest in applying AI and automation to tax work, including helping others adopt new approaches.
- Strong UK corporate tax expertise, with a track record of leading complex engagements and advising senior clients.
- CTA, ACA, ACCA or equivalent qualification, with substantial relevant post-qualification experience.
- Evidence of winning work, developing relationships and turning technical issues into clear commercial advice.
- Initiative and sound judgement, with the ambition to help build a growing practice.

Additional Information We are committed to an inclusive and accessible recruitment process. Please let us know if you need any reasonable adjustments or support when applying or arranging your interview. We do not accept unsolicited CVs from third-party agencies.

## About Unity Advisory

## Company Overview
- **One-liner**: Unity Advisory is a professional services firm built for the Office of the CFO, combining big‑firm expertise with AI‑enabled delivery to help CFOs and leadership teams make sharper decisions and move faster.
- **Entity Type**: Private (backed by Warburg Pincus)
- **Headquarters**: London, United Kingdom (with offices in Malaysia and India)
- **Founded**: 2025 (launched with Warburg Pincus backing)
- **Founders**: Marissa Thomas (CEO) and David Tapnack (Co‑founder, departed Jan 2026)

## Core Business
- **Primary Industry**: Professional Services (Finance, Tax, Deals & Advisory)
- **Target Customers**: CFOs and leadership teams of mid‑ to upper‑mid‑market businesses, including private equity‑backed companies; B2B / enterprise
- **Mission**: “Help CFOs and leadership teams make sharper decisions, and move faster with confidence – bringing clarity, challenge, and real‑world experience when it counts.”

## Products & Services
- **Tax Services**: Covering R&D Tax, VAT & Indirect Tax, Transfer Pricing, Corporate Tax, Employment Tax, Capital Allowances, Tax Managed Services, and Tax Compliance – all delivered with AI‑driven efficiency.
- **Deals & Value Capture**: Deals Analytics, Deals Tax & Structuring, Due Diligence, Carve‑out, Integration & Synergy Delivery, Deal Readiness Assessment, and Equity Story Craft.
- **Finance & Commercial Services**: Accounting Advisory & Technical Reporting, Financial Control, Performance Acceleration & Cost Optimisation, Process Optimisation, Data & Cloud Architecture, Risk & Control Frameworks, and Organisation Design.
- **Advisory & Transformation**: Rapid Function Diagnostics, Enterprise Architecture & Technology, and CFO‑focused strategic advice.

All services are delivered via a proprietary AI workflow platform that accelerates insights while keeping human expertise central.

## Market Standing
- **Valuation / Market Cap**: Not disclosed
- **Key Metric**: Backed by a long‑term investment from Warburg Pincus (amount not publicly disclosed)
- **Notable Investors / Partners**: Warburg Pincus (sole institutional backer); strong relationships with corporate, private equity and sovereign clients; non‑exec chair is Steve Varley (former EY UK Chair & Global Vice‑Chair Sustainability).
- **Growth Signals**: Headcount surged from ~1 to 76 employees (+4700% YoY) within the first year; presence across UK, Malaysia, and India; actively hiring for 16 open positions; monthly headcount growth of +2.1%.

## Competitive Advantages
- **Experience + Agility**: Leadership includes former Managing Partner of PwC UK and partners from EY, Deloitte, KPMG, yet operates with startup speed and flat hierarchies.
- **AI Built‑In, Not Bolted‑On**: Proprietary AI workflows and cloud‑first architecture are embedded into every offering, delivering faster, smarter outcomes without replacing human judgment.
- **No Conflicts of Interest**: Free from the traditional conflicts that can arise in large firms, allowing truly client‑first advice.
- **Senior‑Led, Lean Teams**: Work is delivered by experienced partners and senior managers, not junior staff; high autonomy and true ownership for client outcomes.

## Strategic Focus
- **Scaling Rapidly**: Driven by strong client demand, Unity Advisory is expanding its team and service lines while maintaining a partner‑led, high‑performance culture.
- **Continuous Innovation**: Investing in data, cloud, and AI capabilities to keep delivery ahead of traditional consulting models.
- **Geographic Reach**: Growing its UK base while leveraging nearshore talent in Malaysia and India to serve global clients.

## Why Work Here
- **Culture**: Described as “Straightforward, Intentionally Commercial, Open, Experimental, and Team‑First.” The firm is designed for high performers who value impact over politics.
- **Work Style**: Flat teams with high autonomy; every employee owns delivery for client outcomes. Remote/hybrid policy not specified, but roles appear to be UK‑based with some global presence.
- **Perks & Environment**: Modern tools, strong leadership support, and the chance to shape a fast‑growing firm from an early stage. Emphasis on “the right tools, culture, capital, and leadership to enable people to do their best work.”
- **Engineering Culture**: Technical roles (Data Engineer, Solution Architect) are embedded in a firm that treats AI as a core capability, offering engineers exposure to real‑world finance transformation.

## Sources
1. [unity-advisory.com](https://unity-advisory.com/)
2. [jobs.ashbyhq.com/unity-advisory](https://jobs.ashbyhq.com/unity-advisory)
3. [linkedin.com/company/unity-advisory](https://www.linkedin.com/company/unity-advisory)
4. [unity-advisory.com/careers](https://unity-advisory.com/careers)
5. [unity-advisory.com/what-we-do](https://unity-advisory.com/what-we-do)

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- [Manager, Corporate Tax](https://feeny.ai/job/manager-corporate-tax-unity-advisory-united-kingdom-0xv7q2e59yk6) — United Kingdom
- [Director- Office of the CFO](https://feeny.ai/job/director-office-of-the-cfo-unity-advisory-london-6nyhgb30x3s8) — London, United Kingdom
- [Advisory Data Architect](https://feeny.ai/job/advisory-data-architect-unity-advisory-london-ta8zvccq0tkt) — London, United Kingdom
- [Senior Manager - Capital Allowances](https://feeny.ai/job/senior-manager-capital-allowances-unity-advisory-london-3t2mfarenzxv) — London, United Kingdom
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- [AI Enablement Lead](https://feeny.ai/job/ai-enablement-lead-unity-advisory-london-h0d3hyq3kqkj) — London, United Kingdom
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