Your business is expanding, and the time has come to hire your first employee. However, this exciting milestone is accompanied by one of the most significant administrative tasks, such as setting up payroll. For new employers in the UK, the world of PAYE, RTI, and pension auto-enrolment may seem like a maze of acronyms and deadlines.
Doing it correctly from the very beginning is beyond paying salaries; it is also about complying with the law, safeguarding your business from fines, and earning your team’s trust. But how can you find the way? The first steps to setting up an account with HMRC and picking a software need a lot of thought.
This guide will demonstrate all the payroll setup procedures that are required of you. It will give you tips on how to evade the standard mistakes of the payroll and also advise you on the regulations that you should observe in your business from the very first day.
Understanding When Payroll Becomes Mandatory
Here’s a straightforward guide to understanding when payroll becomes mandatory in the UK:
- Hiring your first employee: The moment you hire your first employee, establish a payroll system and sign up as an employer with HMRC. The rule holds good even if the employee works a single day or is paid a small amount. Not registering may result in fines. After registration, you are required to deduct Income Tax and National Insurance contributions (NICs) from the employee’s wages and transfer them to HMRC via the Pay As You Earn (PAYE) system.
- Paying yourself as a director: In the event that you are a company director and get paid through your limited company, you will be considered an employee for tax purposes. You have to run payroll for yourself and handle PAYE through which you should deduct Income Tax and NICs from your remuneration. It is part of the law; if not followed, you may be penalised or receive extra interest charges by HMRC.
- Legal responsibility to run payroll if necessary: Any company that provides wages or salaries has to run a payroll and PAYE system if it satisfies some conditions, for example, if it pays employees more than £123 per week (2025/26 threshold) or pays company directors a salary. If you pay less than this, you might still be required to sign up if you have more than one employee or offer specific benefits.
How to Set Up Payroll in the UK for the First Time
1. Registering as an Employer with HMRC:
If you are going to pay your first employee, you need to be registered as an employer with HMRC. It is the way to allow you to operate Pay As You Earn (PAYE) and report the payroll information properly. Registration is possible online; however, HMRC might take up to 5 working days to send your PAYE reference numbers. Therefore, it is necessary to be prepared in advance.
During the registration process, HMRC will request information about the business, such as the company name, trading address, contact details, and the date when you are going to pay your first employee. When your setup is complete, you will be issued an Accounts Office reference as well as a PAYE reference, both of which are essential for payroll reporting and the making of payments.
2. Knowing the Key Payroll Terms and Obligations:
Knowing payroll terms will help you to be compliant right from the start. PAYE is the way that HMRC uses to get Income Tax and National Insurance from wages. As an employer, it is your duty to deduct the right amounts and give them to HMRC.
The Real Time Information (RTI) reporting means that you have to send the payroll details each time you pay your employees. This also includes the wages, tax charges, and National Insurance contributions. You might also be required to handle the statutory payments like Statutory Sick Pay (SSP), Statutory Maternity Pay (SMP), or other statutory leave payments, based on your employees.
3. Choosing the Right Payroll Software:
HMRC mandates that RTI submissions be made through the use of payroll software. There are numerous HMRC-approved systems available, which vary from simple tools for small teams to feature-rich platforms with automation capabilities.
Being a new employer, you can consider software that enables RTI submissions, automates tax calculations, issues digital payslips, integrates pensions, and facilitates year-end reporting. Most of the time, cloud-based software is chosen, as it offers the benefits of automatic updates, accessibility from anywhere, and less IT maintenance in comparison with traditional desktop software.
4. Setting Up Employee Payroll Details:
Setting up a payroll properly requires you to have the correct data for each employee. Usually, this means a P45 from the former employer or filling in the HMRC starter checklist, and also personal information like the address, date of birth, and National Insurance number.
In addition to that, tax codes, pay frequency (weekly, fortnightly, or monthly), working hours, and salary or hourly rates that have been agreed upon must be confirmed by you. The correct setup is a guarantee that the tax, National Insurance, and other deductions will be figured out correctly from the very first pay run.
5. Pension Auto-Enrolment Responsibilities:
Most UK employers have legal duties under pension auto-enrolment rules. Even if you have only one employee, you must assess eligibility and comply with The Pensions Regulator’s requirements.
This involves choosing a suitable pension provider, enrolling eligible employees, and contributing the minimum employer contribution. You must also submit a declaration of compliance within the required timeframe, even if no employees are enrolled initially.
6. Running Your First Payroll Correctly:
When running payroll for the first time, calculate gross pay, deductions, and net pay carefully. RTI submissions, known as Full Payment Submissions (FPS), must be sent to HMRC on or before the day employees are paid.
Payslips must be issued to employees showing earnings and deductions clearly. Getting this right helps avoid penalties and builds trust with your team from the outset
7. Meeting Ongoing HMRC Deadlines:
Running payroll just one time is definitely not the end of the story. Businesses are obliged to remit monthly PAYE cash flows to HMRC, a task that is usually completed by the 22nd of the following month if the payment is made electronically.
Moreover, it is mandatory that the FPS is submitted and that the Employer Payment Summary (EPS) is utilised for each pay period. There are also various other commitments throughout the year, like distributing P60S to employees and submitting final payroll reports to HMRC.
When to Seek Professional Payroll Support
- Managing Growth and Multiple Employees: As your company grows and you add more people to your team, handling payroll will become more complicated. Perhaps your roles change rapidly, you have varying pay structures, overtime rules, new employees, or leavers, and therefore, handling payroll may become too much for you. A professional will ensure that everything is in order and done on time as your team grows.
- Ensuring Compliance From Day One: Payroll regulations such as PAYE, NI contributions, RTI reporting, and statutory payments must be followed. Even minor mistakes can result in penalties from HMRC. A payroll expert can help you stay compliant from the start, keeping your processes aligned with UK employment and tax laws.
- Saving Time and Reducing Risk: Handling payroll with a manual system is a time-consuming task that takes up a lot of your valuable time each month. However, with professional support, you can make your operations more efficient, lower the chances of mistakes, and also reduce the probability of making costly errors. This, in turn, leads to a sense of mental calmness as well as the opportunity of devoting more hours to the growth and strategy of your business.
Conclusion
Setting up a payroll for the first time in the UK requires a well-thought-out plan, accuracy, and a good understanding of the law. Deciding on the payroll system to use, how to comply with the rules set by HMRC, etc., are some of the important things that need to be figured out if you are willing to avoid mistakes that cost you a lot. As your company expands, the assistance of a professional can make the whole situation less overwhelming and more efficient. In case you need a payroll that is tailored to your needs and is trustworthy, get in touch with AskGroup and learn how you can make your payroll the winning side for a long time.
