Investment Accountant

Team Finance Business Unit Finance and Enterprise Business Services Requisition No. 12288 City Bristol, GB, BS2 0TB Date posted 13 October 2026

The Investment Accountant is responsible for managing project finances across the region, supporting accurate cost allocation, processing journal entries, and assisting with project closure reviews. The role provides a key finance presence in the region, working closely with operational teams and project managers to maintain the integrity of investment accounting records.

This role will be based out of Bristol Avonbank, and we’d hope to see you at least two days per week but you’re welcome to be in the office more often if that would work best for you. We’re happy to discuss any additional flexibility in working patterns or requirements that you feel could help to make this job work for you!

What You’ll Do

• Maintain project financial records across the regional portfolio, ensuring accuracy and completeness throughout the project lifecycle (initiation to closure).
• Monitor work-in-progress balances and support the timely clearance of accruals, including WI accruals, plant accruals and GRNI.
• Process cost transfers between projects where required, ensuring costs are allocated in line with Finance policy.
• Review and process journal requests submitted via the SharePoint template, ensuring entries are accurate and fully supported, liaising with submitters where clarification is needed, and meeting period-end deadlines (rejection/approval process is automated).
• Review project closures completed in E5, confirming costs are correctly allocated and Crown system status is verified, flagging discrepancies for resolution and supporting the batch closure process. Ownership of the closure decision remains with the business.
• Support the adhoc reopening of projects, confirming the basis with operational and project management contacts and processing requests in E5 once authorisation is received.
• Act as the primary Investment Accounting point of contact for the region: build strong relationships with Operations Directors, Heads of Operations and Project Managers, respond to finance queries promptly (escalating to the Investment Accounting Manager where appropriate), and travel to local depots for in-person support when needed.
• Complete all period-end tasks in line with the month-end timetable (accruals, cost transfers and reconciliations) and provide accurate outputs to Financial Business Partners to support variance analysis. Interpretation, challenge and presentation of results to operational leadership sits with the Financial Business Partner team.

What You’ll Have

• Fully Qualified Accountant (ACA, ACCA, CIMA etc).
• Experience in a finance or accounting role, ideally within a capital-intensive or project-based environment.
• Familiarity with project accounting concepts including accruals, cost transfers, and work-in-progress.
• Competent user of finance systems; experience of E5 or equivalent ERP systems is advantageous.
• Strong attention to detail with the ability to manage multiple tasks to defined deadlines.
• Clear written and verbal communication skills, with the ability to engage effectively with both finance and non-finance stakeholders.

Don’t meet every single requirement? Studies have shown that women and people of colour are less likely to apply for jobs unless they meet every single qualification. At National Grid, we are committed to building a diverse, inclusive, and authentic workplace for everyone. So, if you’re excited about this role but your experience or qualifications don’t match the job description exactly, we encourage you to apply anyway. You might just be the right person for our growing business in this role or another one.

What You’ll Get

Up to £57,000 depending on experience.

As well as your base salary, you will receive a bonus based on personal and company performance and competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%. You will also have access to several flexible benefits such as a share incentive plan and technology schemes, support via employee assistance lines and matched charity giving to name a few.

Further Information

The closing date for this vacancy is Midnight 26 October 26, with interviews due to take place w/c 2 November 26 onwards. National Grid’s recruitment periods can and may vary. We reserve the right to remove this advert or close it to further applications at any point during the recruitment process.

About us

Every day we deliver safe and secure energy to homes, communities, and businesses. We are there when people need us the most. We connect people to the energy they need for the lives they live. The pace of change in society and our industry is accelerating and our expertise and track record puts us in an unparalleled position to shape the sustainable future of our industry. To be successful we must anticipate the needs of our customers, reducing the cost of energy delivery today and pioneering the flexible energy systems of tomorrow. This requires us to deliver on our promises and always look for new opportunities to grow, both ourselves and our business

Inclusion and Diversity is not just about race, ethnicity, gender, or sexual orientation. It is about our employees who wake up every day to serve our 20 million customers. At National Grid, we aim to create an environment where everyone is welcomed for who they are and where our differences are not only accepted but are celebrated. We understand the value that a diverse team can add to our organisation and that is why we model inclusive behaviour starting with senior leadership. National Grid utilises the insights of our employees that come from all different cultures, backgrounds, and beliefs to better serve our customers and communities who are in the fore front of everything we do.

National Grid operates in both the UK and US, with a broad portfolio of energy businesses dedicated to providing safe, reliable, and sustainable power.

From electricity and gas transmission to advancing clean energy and modernising grids, our work covers every aspect of the energy system.

Our energy flows through absolutely everything we do

Life here at National Grid is more than just our purpose or our values, it’s everything we put into everything we do. It’s our commitment to diversity and inclusion; how we help our employees learn and grow; and how we partner with and support the communities where we live and work. It’s all this, and so much more.

We leverage our collective strengths to do meaningful BIG work so that we can be at the heart of a fair and affordable energy future.

We offer a competitive base salary, with annual reviews to ensure it reflects the market rate for your role, skills, knowledge, and experience.

Incentive Pay

Depending on your role, you'll be eligible for an annual performance bonus that rewards your contribution to our success. Your bonus is a percentage of eligible earnings and may vary each year.

Recognition

Our global recognition program lets you thank and reward colleagues for their contributions, along with career milestone awards to celebrate key achievements.

Retirement

We offer a generous pension plan with company contributions up to 12%. For every £1 you contribute, we'll add £2. You can also make extra voluntary contributions to boost your retirement savings.

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