Corporate Tax Planning

We help UK businesses navigate complex tax legislation, reduce liabilities, and stay on the front foot with strategic planning.

Minimise Corporation Tax bills

Utilise all available reliefs

Improve cash flow

Stay fully compliant

Service lead

Mark Martin

Partner and Director of Tax

Corporation Tax doesn’t have to be complicated.

We handle the paperwork, the planning, and the HMRC correspondence – so you don’t have to.

Most companies pay more tax than they need to.

Corporation Tax rules change often. Reliefs are complex. Mistakes are expensive.

You may be:

  • Unsure whether you’re claiming the right reliefs

  • Struggling with compliance and deadlines

  • Worried about overpaying or triggering penalties

  • Lacking proactive advice on how to plan ahead

We help you get it right – and stay ahead.

"Most companies pay more tax than they need to. Our job is to make sure you’re not one of them."
Lawrence Evans
Partner and Managing Director

From filing to forward planning

Tax efficiency, compliance, and strategic insight.

Included in our Corporate Tax service:

Tax returns made simple

Expert-led process with no surprises.
  • Intro call to assess your tax profile and business structure

  • Checklist of required documents sent to you

  • Preparation of returns by qualified tax specialists

  • Review of claims, reliefs, and optimisation opportunities

  • Submission to HMRC and confirmation of payment timelines

  • Optional planning session for the next year

"We take care of the numbers and the submissions so you can avoid fines and keep more cash in the business."
Bradley Goddard
Corporate Tax Specialist
"Tax legislation is always changing. We stay ahead of it so you can focus on running your business."
Mark Martin
Partner and Director of Tax

Our promise

We promise to respond to every enquiry within one business day, providing a clear timeframe for the anticipated resolution.

Always timely. Always strategic.

  • HMRC-compliant returns prepared by experienced tax pros

  • Transparent fees and turnaround times

  • Strategic insight to reduce liabilities

  • Clear communication from day one

  • First response within one working day

Be smart about your Corporation Tax

Book a free discovery call with our tax team.

Your key tax team

Mark Martin

Partner and Director of Tax

Claire James

Personal Tax Specialist

Bradley Goddard

Corporate Tax Specialist

Frequently asked questions

Nine months and one day after your accounting period ends.

Currently 19% for profits up to £50,000, with a taper up to 25% for higher profits.

HMRC may issue penalties and interest. We help you stay on track and avoid these issues.

Yes. We handle all correspondence and enquiries, so you don’t have to.

Yes – tax advisory and compliance costs are allowable expenses in most cases.

Our core sectors

Our expertise spans a wide range of industries, with 60% of our client base concentrated in the following core sectors:

Professional Services

Consultants, agencies, engineers, and other specialised firms providing expert professional services.

Technology & Innovation

SaaS companies, crypto businesses, software development firms, and tech start-ups.

Manufacturing & Logistics

Manufacturers, supply chain operators, warehousing businesses, and logistics providers.

While we specialise in these areas, our diverse client portfolio includes businesses across various industries, from retail to construction and manufacturing to hospitality.

No matter your sector, we’re equipped to support your growth and success.

Trusted by businesses like yours

"Caldwell Penn's transparency, professionalism, attention to detail, and friendliness distinguish them from all other firms we have previously engaged. They have exceeded our expectations by additionally offering R&D advice, which has significantly benefited our operations."
Allaero Limited
"While it’s hard to get excited about an audit, Caldwell Penn made the experience as seamless as possible. Communication was clear and effective, and the management letter provided valuable insights for our business. We highly recommend their services to any business in need of a thorough and efficient audit."
UK Lanyard Makers Ltd
"Caldwell Penn handle everything for us with a proactive, tailored approach. Their dedicated team understands our goals, ensuring we never miss tax-saving opportunities. They’re more than accountants, they’re partners in our growth."
Syon Creative Ltd
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