How does National Insurance work for company directors?
Directors pay NI on earnings above £12,570/year (primary threshold). Rate is 12% on earnings between £12,570 and £50,270, then 2% above. Employers pay 13.8% on earnings above £9,100.
Detailed Explanation
Director NI rules 2024/25
Directors are treated differently from regular employees. NI is calculated annually, not weekly/monthly.
Employee (Director) NI
- Threshold: £12,570/year - Main rate: 12% on earnings £12,570-£50,270 - Additional rate: 2% on earnings above £50,270
Employer NI
- Threshold (Secondary): £9,100/year - Rate: 13.8% on all earnings above threshold - Employment Allowance: £5,000 credit (not available for single-director companies)
Optimal salary strategies
Option A: £12,570 salary - Uses personal allowance - Director NI: £0 - Employer NI: £479.35 - Qualifies for State Pension - Corp Tax saving on salary + ER NI
Option B: £9,100 salary - Below both NI thresholds - Director NI: £0 - Employer NI: £0 - Still qualifies for State Pension - Lower Corp Tax deduction
Which is better? Usually £12,570 because the employer NI cost (£479) is less than the Corporation Tax saved (up to £640 at 19% or £1,000 at 25%).
State Pension
- Need 35 qualifying years for full State Pension - Salary must exceed Lower Earnings Limit (£6,396) to qualify - Both options above qualify
Source: HMRC National Insurance Rates 2024/25
Real-World Examples
Director with modest earnings
Sarah, a director, only draws a salary of £15,000. She'll pay 12% NI only on the £2,430 (£15,000 - £12,570) above the primary threshold, resulting in £291.60 of employee NI. Her company will pay 13.8% on £5,900 (£15,000 - £9,100) employer NI, resulting in employer NI of £814.20.
High-earning director
John, a director, draws a salary of £70,000. He'll pay 12% on £37,700 (£50,270 - £12,570) and 2% on £19,730 (£70,000 - £50,270), totaling £4,928.40 in main rate NI and £394.60 in additional rate NI. His company pays 13.8% on £60,900 (£70,000 - £9,100), totalling £8,404.20 in employer NI.
Director salary just below threshold
David takes a small salary of £9,000 to minimise NI. As his salary is below both the employee and employer thresholds, neither he nor the company pays any National Insurance. He would however not qualify for state pension contributions at this level.
Common Mistakes to Avoid
- Failing to account for the annual director's NI calculation, which means NI can be underpaid in the early months of the tax year if using standard payroll software.
- Forgetting that the Employment Allowance isn't available to companies where the director is the only employee.
- Incorrectly assuming director's NI is calculated identically to employee NI, leading to errors in payroll.
- Not reviewing salary and dividend strategies to optimise tax and NI efficiency each tax year
Frequently Asked Questions
What happens if I have multiple directorships?
Each directorship is considered separately for employee NI purposes. Your earnings from each company are assessed against the annual threshold. However, your employer NI allowance only applies once across all connected companies.
How does paying myself dividends affect National Insurance?
Dividends are not subject to National Insurance contributions, only Income Tax. This is a key consideration when planning your remuneration strategy.
What happens if I become a director partway through the tax year?
The annual threshold for employee NI still applies. Your payroll software may need adjustments to account for this when you become a director.
What if I have employees as well as being a director?
You'll still pay employer NI on your director's salary above the threshold, and also on your employees' salaries above their individual thresholds. The Employment Allowance can then potentially offset some of these costs, if you qualify.
Practical Tips
- Use payroll software that is specifically designed to handle director's NI calculations to avoid errors; many packages have this built-in.
- Regularly review your salary and dividend strategy with an accountant to ensure you're optimising for both tax and National Insurance.
- If you are the only employee, consider whether it's more tax-efficient to pay yourself a lower salary (up to the personal allowance) and take the rest as dividends, but be aware of state pension implications.
- If you're eligible for the Employment Allowance, ensure you claim it through your payroll software each tax year.
Related Questions
How much salary should I pay myself as a director?
Most directors pay themselves a salary of £12,570 per year (the personal allowance) or £9,100 (the secondary NI threshold) and take the rest as dividends for optimal tax efficiency.
Do directors pay National Insurance?
Yes, directors pay National Insurance on salary above the primary threshold (£12,570 in 2025/26). Their company also pays employer NI at 15% on salary above £5,000.
How much dividend can I take from my company?
You can take dividends up to your company's available profits (retained earnings). There's no legal maximum, but you'll pay dividend tax above the £500 dividend allowance.
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