Key tax deadlines for umbrella employees (2026/27 UK tax year)

Working through an umbrella company means that most of your tax responsibilities are taken care of through PAYE. Whilst this may be the case, it's important to understand HMRC's key deadlines throughout the tax year in order to ensure you remain compliant and avoid any unexpected tax issues. 

In this blog we'll explore the important UK tax deadlines for the 2026-27 tax year, what they mean for umbrella company employees, and explain when you may still not need to take action. 

• The UK tax year runs from 6 April to 5 April
• P60s must be issued by 31 May
• P11Ds must be submitted by 6 July (if applicable)
• You do NOT need to file a tax return just for earning over £150,000
• 30 December is the deadline to pay tax via your PAYE code
• Most umbrella employees won’t need Self-Assessment unless they have additional income

The tax year in the UK runs from 6 April to 5 April the following year. As an SG Umbrella employee, your:

• Income is processed through PAYE
• Tax and National Insurance are automatically deducted
• HMRC compliance is handled on your behalf

Which, all together means your tax situation is usually considered straightforward.

One umbrella contractor reached out to SG Umbrella, thinking they had to file a tax return because their income was over £150,000. After reviewing their details, we were able to confirm:

• Their income was 100% PAYE
• There wasn’t any rental, dividend or side income

Therefore, no Self-Assessment was required. Some contractors believe that once their income reaches over £150,000, they must complete a SATR, but in this case it wasn’t required.

Whilst you can rest assured knowing your umbrella company manages your payroll, it's still good practice to know the key dates throughout the tax year. 

31 May – P60 Deadline 

Your P60 summarises your income and deductions for the previous tax year. 

It includes: 

• Total earnings 

• Tax paid 

• National Insurance contributions 

• Student loan deductions 

Employers must issue this by 31 May. For more information on P60's, look at our blog. 

6 July – P11D Deadline (If Applicable) 

If you receive Benefits in Kind (BIKs), these must be reported. 

Common examples include: 

• Private medical insurance 

• A company car or fuel 

• Interest-free loans 

• Accommodation 

Deadline: 6 July. 

30 December – PAYE coding deadline 

If you file a Self-Assessment and owe less than £3,000, HMRC can collect it via your PAYE tax code. If you wish to use this option, you must file by 30 December.

• 5 October – Register for Self-Assessment
• 31 October – Paper return deadline
• 31 January – Online filing and payment deadline

Quick Summary

• SG Umbrella handles most compliance
• Your key responsibility is simply reviewing documents and staying informed

The 2026/27 Rule (Most Important Update)

You do NOT need to complete a Self-Assessment tax return just because you earn over £150,000.

This rule has been removed by HMRC.

When you DO need to file

You may need to complete a tax return if you:

• Receive any income that’s outside PAYE (such as property or freelance work)
• Receive dividends or investment income
• Are affected by the High-Income Child Benefit Charge
• Have Capital Gains Tax to report
• Are specifically asked by HMRC

When you DON’T need to file

You likely don’t need a tax return if:

• Your income is fully PAYE through your umbrella company
• You have no additional untaxed income
• HMRC hasn’t requested one

This applies to most umbrella employees.

Working through an umbrella company is designed to keep your tax simple, compliant, and stress-free.

At SG Umbrella, we handle:

• PAYE deductions
• P60 and P11D processing
• HMRC communication
• Tax code management

If you’re unsure about your tax situation, or if you may need to submit a return, the SG team are here to help. Simply get in touch to discuss your personal circumstances and we’ll be able to advise you further on what to do.