Students that work may need to pay Income Tax and National Insurance. Employers are required to calculate the amount of tax they need to pay on the basis that the students would be working for the rest of the tax year.

This means that an overpayment of income tax can often occur when a student or temporary worker earns more than their monthly tax-free allowance of £1,048 but over the course of the tax year earn less than their annual allowance. For example, a student only working over the summer and / or Christmas period and earning more than £1,048 a month may not have exceeded the current £12,570 tax free personal allowance. Students (and other temporary workers) are not required to pay any Income Tax if their earnings are below the tax-free personal allowance, currently £12,570.

A refund of overpaid tax can be requested online or using form P50 entitled Claim for repayment of tax. You can check your eligibility to make a claim for current or past tax years at https://www.gov.uk/claim-tax-refund/y

A refund claim for the current tax year can only be made if you meet the necessary conditions. Any students that are continuing to work for the rest of the tax year in part-time jobs should consider waiting until the end of the tax year in order to make a claim.

As an employee, you pay tax on certain company benefits, such as cars, accommodation, and loans. Your employer calculates the tax you owe and deducts it through Pay As You Earn (PAYE). The amount of tax depends on the type and value of the benefit.

Some company benefits are tax-free, including childcare support and meals provided in canteens. Cash payments, however, are treated as earnings and are always subject to tax and National Insurance contributions.

Other taxable benefits you will pay tax on include the following:

Medical Insurance

You usually pay tax on the cost of the insurance premiums if your employer pays for your medical insurance. However, some health benefits are tax-free, including medical insurance while you are working abroad and annual check-ups.

Loans

You may have to pay tax on low-interest or interest-free loans from your employer if the loan is more than £10,000. The tax is calculated on the difference between the interest rate you pay and the official rate of interest set by the Bank of England. You could also be liable for tax if your employer lends money to one of your relatives.

Living Accommodation

If you (or one of your relatives) lives in accommodation provided by your employer, you may need to pay tax. The calculation depends on whether the accommodation costs are more than £75,000. You might not have to pay tax if the accommodation is provided so you can perform your job or do it more effectively, for example, agricultural workers living on farms.

As part of the Budget measures, the government confirmed plans to make some changes to the Construction Industry Scheme (CIS).

From 6 April 2026, HMRC will be able to take immediate action where a business makes or receives a payment that it knew, or should have known, was connected to fraud. In these circumstances, HMRC will have the power to remove Gross Payment Status (GPS) with immediate effect, assess the business for the associated tax loss, and impose a penalty of up to 30%. This penalty may be applied to the business itself or to its officers. Where GPS is withdrawn due to fraud or serious non-compliance, the business will also be barred from reapplying for GPS for a period of five years (an increase from the current one-year limit).

Alongside these measures, the government also plans to simplify the CIS by exempting payments to local authorities and certain public bodies. As part of this change the requirement for construction contractors to submit nil returns will be required. These changes are due to take effect from 6 April 2026 and will first be subject to technical consultation.

The CIS is a set of special tax and National Insurance rules for businesses operating in the construction industry. Under the scheme, businesses are classed as either contractors or subcontractors, and both must understand their tax obligations.

Qualifying contractors are required to deduct tax from payments made to subcontractors and pass these deductions to HMRC. The amounts deducted count as advance payments towards the subcontractor’s tax and National Insurance liabilities.

Subcontractors are not required to register for the CIS, but where they are not registered, contractors must deduct tax at a higher rate of 30%. Registered subcontractors are subject to a 20% deduction unless they qualify for GPS. Where GPS applies, no deductions are made by the contractor, and the subcontractor is responsible for paying all tax and National Insurance at the end of the tax year.

To qualify for GPS, a subcontractor must meet specific criteria, including a strong compliance history of paying tax and National Insurance on time, and carrying on a business that undertakes construction work or supplies construction labour in the UK.

A recent ruling has increased the scope of statutory protection for whistleblowers to include covered detriments against co-workers under the Employment Rights Act 1996. A Mr. Rice was dismissed by his company owner on the grounds of redundancy in February 2021. Mr. Rice asserted that his dismissal was automatically unfair, given that it was motivated by his protected disclosures. He subsequently applied to amend his claim to include a detriment claim against his owner-employer, alleging that his dismissal was a detriment in contravention of Section 47B of the Act. The core issue arose when he sought to amend his claim to include an additional complaint, specifically that his dismissal constituted a detriment inflicted by a co-worker, for which the owner was vicariously liable under the 1996 Act.

This principle states that the exclusion (Section 47B) only bars a direct detriment claim against the employer for its own act of dismissal. However, it does not bar a claim against a co-worker (under S. 47B(1A)) for the detriment of dismissal. Consequently, if a co-worker is liable for the act of dismissal as a detriment, the employer automatically becomes vicariously liable for that act under Section 47B(1B). This effectively allows the employee to bring a detriment claim against the employer for the act of dismissal itself. 

The ruling creates a crucial pathway through which employees may obtain a more comprehensive remedy for the act of dismissal, no longer solely restricting whistleblowers to a claim of unfair dismissal. This significantly increases the potential value of any award for damages, particularly in distressing cases.

Employees can now pursue the individual co-worker who carried out the dismissal – in this case, the owner of the firm. This is an important concession, especially where a company becomes insolvent, as the personal liability remains. Employers should be wary of their conduct toward whistleblowers, as they may find themselves personally liable for their words and deeds.

1 January 2026 – Due date for Corporation Tax due for the year ended 31 March 2025

19 January 2026 – PAYE and NIC deductions due for month ended 5 January 2026. (If you pay your tax electronically the due date is 22 January 2026).

19 January 2026 – Filing deadline for the CIS300 monthly return for the month ended 5 January 2026.

19 January 2026 – CIS tax deducted for the month ended 5 January 2026 is payable by today.

31 January 2026 – Last day to file 2024-25 self-assessment tax returns online.

31 January 2026 – Balance of self-assessment tax owing for 2024-25 due to be settled on or before today unless you have elected to extend this deadline by formal agreement with HMRC. Also due is any first payment on account for 2025-26.

1 February 2026 – Due date for Corporation Tax payable for the year ended 30 April 2025.

19 February 2026 – PAYE and NIC deductions due for month ended 5 February 2026. (If you pay your tax electronically the due date is 22 February 2026)

19 February 2026 – Filing deadline for the CIS300 monthly return for the month ended 5 February 2026.

19 February 2026 – CIS tax deducted for the month ended 5 February 2026 is payable by today.