(And How Gym Owners Can Prepare)
For gym owners operating through a limited company, 2026 is not just another tax year. HMRC continues to tighten compliance standards, increase transparency, and move further toward digital reporting.
While many of these changes apply across all sectors, gym businesses can feel the impact more strongly because owners are often balancing membership management, staffing, equipment costs, and fluctuating cashflow alongside financial compliance.
Understanding what HMRC expects — and preparing early — can help protect your cashflow, reduce stress, and allow you to focus on running your gym rather than worrying about tax issues.
Below are the key things gym company directors need to know for 2026.
1. Accounts and Corporation Tax Returns Must Now Be Filed Separately
From April 2026, HMRC and Companies House are ending their joint filing service.
Previously, some businesses submitted annual accounts and their Corporation Tax return (CT600) together through one online submission. This option will no longer be available.
From April 2026:
• Annual accounts must be filed separately with Companies House
• Corporation Tax returns must be filed separately with HMRC
• Submissions must be made through approved software or a professional agent
It is also recommended that companies download and retain copies of previous filings before the service closes.
Why this matters for gym owners
If you currently rely on a simple online submission process, your filing procedures may need to change. Using proper accounting software or working with an accountant will ensure submissions continue smoothly without last-minute problems.
2. HMRC Now Requires More Information About Directors
For the 2025/26 tax year onwards, HMRC has expanded the information directors must include in their Self Assessment tax returns.
Directors of close companies — which includes most owner-managed gym businesses — must now report:
• The company name
• The company registration number
• Their shareholding percentage
• Dividends received from that company
These dividend figures must now be reported separately from other UK dividend income.
This is no longer optional. HMRC has linked these requirements to a new penalty regime where incorrect or missing information can lead to fines.
What gym directors should do
Ensure dividend payments are properly documented, with clear records of:
• payment dates
• dividend amounts
• shareholder entitlement
This makes completing your personal tax return far simpler and avoids problems later.
3. Deadlines Are Still Strict — And Penalties Are Increasing
Compliance deadlines for limited companies remain unchanged, but the financial consequences for missing them are increasing.
Key deadlines include:
• Annual accounts – filed with Companies House within 9 months of the accounting period end
• Corporation Tax payment – due 9 months and 1 day after the period end
• Corporation Tax return (CT600) – due within 12 months of the period end
From 1 April 2026, late filing penalties for Corporation Tax are expected to increase significantly, particularly where companies repeatedly miss deadlines.
Why this matters for gym businesses
Running a gym often means juggling staff schedules, memberships, and operational pressures. But missing compliance deadlines can quickly create unnecessary costs and administrative headaches.
Strong systems and forward planning help prevent this.
4. HMRC Is Using Data to Identify Risk Areas
HMRC increasingly uses digital systems and data matching to identify businesses that may require closer review.
Some common triggers include:
• Late VAT or PAYE submissions
• Dividends that appear high compared to reported profits
• Director’s loan accounts remaining overdrawn
• Differences between Companies House accounts and HMRC filings
• Sudden unexplained changes in turnover or payroll figures
Why this matters for gyms
Fitness businesses often experience seasonal fluctuations in membership numbers and income. Without clear records and explanations, normal business variations can appear unusual to HMRC systems.
Accurate bookkeeping helps avoid unnecessary scrutiny.
5. Digital Record-Keeping Is Now Standard Practice
Although Making Tax Digital for Corporation Tax has been delayed, HMRC’s broader digital strategy continues.
From April 2026:
• Companies must generally use commercial software or approved digital services to file accounts and tax returns
• Older manual filing routes are gradually being phased out
Gym owners should ensure:
• their accounting software is up to date
• bookkeeping records are maintained regularly
• advisers or staff know how to use the system correctly
Good digital records make compliance easier and significantly reduce risk.
6. What HMRC Expects From Limited Companies in 2026
In simple terms, HMRC expects transparency, accuracy, and timely reporting.
This includes:
Accurate Financial Reporting
Your records should clearly show:
• profits that support dividend payments
• PAYE correctly processed for salaries
• VAT returns that match business turnover
• Corporation Tax properly calculated and paid on time
Clear Director Records
Gym company directors should maintain:
• dividend paperwork
• accurate director’s loan account records
• correct Self Assessment disclosures
Timely Compliance
Missing deadlines leads to:
• penalties
• interest charges
• potential escalation where issues continue
Consistent Digital Records
HMRC increasingly expects:
• digital bookkeeping systems
• audit trails and backups
• software-based tax submissions
7. Preparing Your Gym Business for 2026
Gym owners can reduce risk and improve financial control by taking a few practical steps.
✔ Review your accounting software
Ensure it can support separate HMRC and Companies House submissions.
✔ Keep dividend records organised
Document payment dates, amounts, and shareholder allocations.
✔ Track key deadlines early
Add VAT, payroll, Corporation Tax, and Companies House deadlines to your calendar.
✔ Review director’s loan accounts
Avoid long-term overdrawn balances that may trigger HMRC attention.
✔ Use regular management accounts
Monthly or quarterly reporting helps identify issues early rather than at year end.
Final Thoughts
2026 represents an important step in HMRC’s ongoing modernisation of the UK tax system.
Key developments include:
• separate filing processes
• enhanced reporting requirements for directors
• stronger expectations around digital records
Gym owners who prepare early will find these changes manageable and will benefit from greater visibility over their finances and tax position.
Those who leave things until year end may find compliance more stressful and costly.
At Hammond & Co, we support gym and fitness business owners with proactive accounting, tax planning, and compliance — helping you focus on growing your business while staying ahead of HMRC requirements.