A historical record of National Insurance Contributions in the UK for the tax year 2017/2018
The following information is a historical record of the National Insurance contribution thresholds and rates in the United Kingdom for the tax year 2017/2018. The information was correct at the time of publication.
If you are looking for this tax year’s information, please visit our resources section, where you can find recent National Insurance Contributions information.
Latest tax rates & allowances
Class 1 NIC thresholds 2017/18
| week | month | year |
|---|
| Lower Earnings Limit (LEL) | £113 | £490 | £5,876 |
| Primary Threshold (PT) | 157 | 680 | 8,164 |
| Secondary Threshold (ST) | 157 | 680 | 8,164 |
| Upper Secondary Threshold (UST) | 866 | 3,750 | 45,000 |
| Upper Earnings Limit (UEL) | 866 | 3,750 | 45,000 |
Notes
- No NIC are payable by employee or employer on earnings up to the PT (employees) or ST (employer).
- No employee NIC are payable once the employee reaches state retirement age, but employer NIC continue to be payable.
- No employer NIC are payable on earnings up to the UST for employees aged under 21, or apprentices aged under 25, at the date of the payment.
- No employee NIC are payable on earnings between the LEL and the PT, but when reported by the employer, the employee receives credit towards the State Pension.
Class 1 NIC rates 2017/18
| Employee | Employer |
|---|
| PT/ST to UEL | 12% | 13.8% |
| Above the UEL | 2% | 13.8% |
Notes
- Employers and employees both contribute at rates dependent on the level of earnings during a weekly, monthly or annual earnings period.
- A person with more than one employment can defer the payment of some employee NIC until after the end of the tax year. The total amount payable is then checked and limited, so the full 12% rate is only applied to income between the PT and the UEL.
- An ’employment allowance’ of £3,000 per qualifying business gives exemption from Class 1 Employer NIC. Some businesses are excluded, including certain sole director companies. Employee NIC are unaffected.
Class 2 NIC
| Rates per week | 2017/18 | 2016/17 |
|---|
| Flat rate | £2.85 | £2.80 |
| Small Profits Threshold (SPT) | 6,025 | 5,965 |
Notes
- Self employed people pay Class 2 NIC if their profits exceed the SPT for the tax year.
- Both Class 2 and Class 4 NIC are collected through self assessment.
Class 3 NIC
| Rates per week | 2017/18 | 2016/17 |
|---|
| Class 3 flat rate | £14.25 | £14.10 |
Notes
Anyone who wants to maintain State Pension rights may pay voluntary Class 3 NIC.
Class 4 NIC
| Annual | 2017/18 | 2016/17 |
|---|
| Lower profits limit | £8,164 | £8,060 |
| Upper profits limit | 45,000 | 43,000 |
| Main rate | 9.0% | 9.0% |
| Additional rate | 2.0% | 2.0% |
Notes
- Class 4 NIC are payable on profits from UK trades or professions that exceed the lower profits limit and are chargeable to Income Tax.
- The additional rate is payable on profits that exceed the upper profits limit.
- An individual who is both employed and self employed may pay Class 1, Class 2 and Class 4 NIC, subject to the maximum limit for the year.
