Operating through a limited company (or PSC) remains one of the most tax-efficient and commercially rewarding ways to contract in the UK. However, corporate status brings strict statutory duties enforced by Companies House and HMRC. Whether you are stepping away from an umbrella setup or leaving sole trader status behind, we are here to ensure you navigate the rules seamlessly while keeping your hard-earned cash working as hard as possible for you.
What is a PSC / Limited Company?
A limited company (often referred to as a Personal Service Company (PSC) when run by a single contractor), is a distinct legal entity separate from its owners and directors. This means the company contracts directly with agencies or clients, holds its own assets, and retains its own liabilities.
The Advantages and Disadvantages of Setting Up a Limited Company
We always advise weighing the commercial perks against your legal responsibilities before incorporating but to support you in your decision-making, we have broken down the pros and cons for your consideration.
The Advantages
Tax Efficiency: Operating through an LTD allows you to optimise your take-home pay by taking a combination of a low director salary and dividend payments, which are not subject to National Insurance contributions (NICs).
Limited Liability Protection: Because the company is a separate legal entity, your personal assets (such as your home or savings) are generally protected if the business faces financial debt or legal disputes.
Professional Status & Commercial Appeal: Working outside IR35 means you’re really building your own business, not just doing a job. It’s something you keep with you as you move from contract to contract, and as your reputation grows, it becomes much easier to win new work and build long‑term relationships with clients.
Access to Business Expenses: You can deduct legitimate, allowable business expenses from your total turnover, reducing your taxable corporate profit.
Retained Profits: You can leave surplus income inside the business bank account to draw in future, less active tax years, or invest directly into corporate ventures and pension plans.
The Disadvantages
Administrative Responsibility: Directors carry legal duties under the Companies Act 2006. You are responsible for filing accurate statutory returns and maintaining business records, even if you hire an accountant.
Less Privacy: Public registers like Companies House display certain company details, including registered office addresses, director profiles, and annual accounts summary data.
More to Juggle Yourself: With a limited company, you’re the one steering the ship instead of having everything done automatically like a regular employee. You will need to think about when to pay yourself, set aside money for tax, and keep a bit of a buffer for slower months, which means a bit more day‑to‑day thinking and planning on your part. Of course, your accountant will be on hand with this.
Core Accounting Requirements for Limited Companies
Because your limited company is a separate legal entity, its financial reporting must strictly adhere to HMRC and UK Legal standards; as a result, you will be required to handle:
Annual Accounts (Statutory Accounts)
At the end of each financial year, limited company directors (or their accountants) must prepare statutory accounts outlining financial activities over a 12-month period. These are submitted to Companies House, and typically contain the following:
Balance Sheet: Summarises company assets, liabilities, and retained equity on the final day of the financial year.
Accounting Notes: For micro entity accounts very brief notes are added to the accounts in line with the minimum requirements imposed by Companies House
Profit and Loss (P&L) Statement: Details total contract revenue, allowable business expenses, and net profit before and after tax. For micro entity account this is prepared and submitted to HMRC however not always included in the accounts posted to Companies House.
Confirmation Statement (CS01)
Separate from financial statements, directors must file an annual Confirmation Statement with Companies House. This verifies administrative details including the registered office address, director profiles, shareholder allocations, and Persons with Significant Control (PSCs).
Corporation Tax Returns
Limited companies do not pay Income Tax on corporate earnings; instead, Corporation Tax is charged on taxable profits. Directors must submit a Company Tax Return (a CT600 form) with detailed tax calculations to HMRC for review.
Value Added Tax (VAT) and Making Tax Digital (MTD)
If your rolling 12-month contract turnover exceeds the statutory VAT threshold (£90,000), VAT registration is mandatory. It is not uncommon for contractors to voluntarily register early, as this will enable them to reclaim VAT on eligible business purchases.
Payroll, PAYE, and Director Remuneration
As a director/shareholder, you have flexibility over how you draw income. To receive a salary, your company must register with the Pay As You Earn (PAYE) scheme with HMRC.
Many contractors adopt a tax-efficient model: drawing a modest, threshold-aligned director salary via PAYE for work completed as a director in running the business. This is an allowable expense and will reduce company profits and subsequently Corporation Tax, and supplementing income with dividend distributions taken from post-tax retained profits. Salary runs require ongoing Real Time Information (RTI) submissions to HMRC.
Tax Considerations that Specifically Apply to Contractors
The Off-Payroll Working Rules (IR35)
IR35 legislation determines whether a contractor operates as a genuine business enterprise or an employee. Below, we have broken down how this distinction can impact you.
| IR35 Status | Operational Impact | Tax Treatment |
| Outside IR35 | Complete operational control; true business engagement. | Invoices paid gross. Income extracted flexibly via salary and dividends. |
| Inside IR35 | The contractor is an employee and is treated as such in the workplace. | Deductions for PAYE and NICs made at source before funds reach the contractor. |
Having access to specialist guidance to review contract terms and working practices helps safeguard your business within HMRC boundaries.
Allowable Business Expenses
To qualify under HMRC guidelines, expenses must be incurred wholly and exclusively for business purposes. Examples of common expenses could be:
- IT hardware, professional equipment, and software licenses.
- Business travel, accommodation, and subsistence for temporary workplaces.
- Accountancy fees, professional subscriptions, and industry training relevant to your services.
Directors’ Legal Obligations and Record-Keeping
Under the Companies Act 2006, company directors retain ultimate legal responsibility for the accuracy of their business accounts and statutory filings, even when delegating daily tasks to a specialist accountant.
Statutory Record-Keeping Requirements
HMRC mandates that you retain all core financial records for at least 6 years. This includes:
- Sales invoices issued to agencies or clients.
- Expense receipts, supplier invoices, and business bank statements.
- Travel logbooks and asset purchase records.
- Payroll files, RTI submissions, and signed dividend vouchers.
Failing to keep accurate books or missing filing deadlines can result in severe financial penalties, hit your credit score, or even lead to director disqualification.
Key Takeaways
While running a PSC takes a bit more discipline than a standard umbrella setup, the financial rewards make it worthwhile. We handle the heavy lifting: from Company accounts to Self-assessment and everything in between, ensuring you stay fully compliant with HMRC. Along with the added assurance from our certifications and accreditations from the FCSA, and SafeRec you can rest assured your business finances are in safe hands.
