Fleet, Hampshire · CIS & IR35 Specialists
Contractor Accounting Services in the UK
Expert CIS tax return support for self-employed professionals — tax-efficient solutions, IR35 guidance, and tailored support for UK contractors and builders.
Why Do Contractors Need Specialist Accounting Support?
Contractors operate as sole traders, limited companies, or through umbrella companies, each with unique tax and compliance requirements. MSA Accountants provides expert services to simplify your finances, ensuring tax efficiency, IR35 compliance, accurate filings, and financial clarity.
IR35 Status
Are you inside or outside IR35? Incorrect classification can lead to penalties.
Tax Efficiency
How do you structure income (salary vs. dividends) to reduce tax liability?
VAT Management
Should you register for VAT? What about the Flat Rate Scheme?
Expense Claims
What costs can you claim as business expenses?
CIS Deduction Calculator
CIS is deducted only from labour costs, not materials, fuel, travel or subsistence. Enter your figures below for an instant estimate.
How MSA Accountants Supports Contractors
Company Formation
Set up your limited company quickly and correctly.
IR35 Review
Ensure your contracts are IR35-compliant.
CIS Compliance
Correct subcontractor deductions and timely CIS return filings.
VAT Registration & Filing
Including Flat Rate Scheme guidance.
Monthly Bookkeeping
Real-time tracking of income and expenses.
Self-Assessment Filing
Accurate and timely returns to avoid penalties.
What Tax Obligations Do Contractors Face?
| Tax Type | Who It Applies To | Key Considerations |
|---|---|---|
| Income Tax | Sole Traders & Ltd Co | Taxable on profits after expenses |
| Corporation Tax | Limited Companies | 25% on company profits (2024/25 tax year) |
| VAT | Turnover > £90,000 | Flat Rate Scheme can simplify VAT payments |
| National Insurance | Sole Traders & Ltd Co | Class 2 & 4 NICs for sole traders; PAYE for Ltd Co |
| Dividend Tax | Limited Companies | 8.75% basic, 33.75% higher rate |
| IR35 Compliance | All Contractors | Determines if you're taxed as an employee or business |
| CIS Compliance | All Contractors | Construction contractors must register for CIS, deduct CIS tax from subcontractor payments, and file CIS returns to HMRC |
IR35 Guidance — Are You Inside or Outside?
IR35 determines whether you're a genuine contractor (outside IR35) or working like an employee (inside IR35). MSA Accountants provides:
- ✓Contract Reviews: Ensure contracts meet HMRC's IR35 guidelines
- ✓Tax Planning: Structure income efficiently based on IR35 status
- ✓HMRC Dispute Support: Assistance if HMRC challenges your IR35 position
With correct structuring, you can reduce risk and retain more earnings.
IR35 Employment Status Checker
A quick indicative check — not a substitute for HMRC's formal CEST tool or professional advice, but a useful starting point.
Why Choose MSA Accountants for Contractor Accounting?
Frequently Asked Questions
Accounting and tax for builders
Do contractors need to register for VAT?
Yes, if your turnover exceeds £90,000 per year. The Flat Rate Scheme often simplifies VAT for contractors.
How does IR35 affect my tax?
If you're inside IR35, you'll pay tax like an employee, with fewer expense claims. If outside IR35, you can benefit from tax-efficient dividends.
Can I claim expenses as a contractor?
Yes, common expenses include travel, equipment, insurance, training, and home office costs.
Should I work under an umbrella company or limited company?
Limited companies offer more tax efficiency but more admin. Umbrella companies simplify payroll but cost more in tax.
What's the best way to pay myself as a contractor?
A mix of salary and dividends is usually the most tax-efficient.
Get Expert Contractor Accounting Support Today!
Schedule your free consultation and simplify your contractor finances.