Payroll Responsibilities for Employers: What UK Businesses Need to Know
Hiring staff is an important step for any business.
It usually means the business is growing, taking on more work and building capacity. But once you become an employer, you also take on payroll responsibilities.
Payroll is not just about paying wages.
It involves:
- registering with HMRC
- collecting employee information
- calculating PAYE and National Insurance
- issuing payslips
- reporting payroll to HMRC
- paying HMRC on time
- handling workplace pension duties
- keeping proper records
- dealing with statutory payments
- reporting benefits and expenses where relevant
For small businesses, payroll mistakes can quickly lead to penalties, employee disputes and unnecessary stress.
This guide explains the key payroll responsibilities employers need to understand.
1. Registering as an Employer
If you employ staff and need to operate PAYE, you must register as an employer with HMRC.
You must register before the first payday, but you cannot register more than 2 months before you start paying people. HMRC will then issue your employer PAYE reference.
This applies whether you are employing:
- full-time staff
- part-time staff
- directors receiving salary
- casual workers, depending on the arrangement
- employees with tax or National Insurance deductions
Practical Example
A company takes on its first employee from 1 July and plans to pay them on 31 July.
The employer should register for PAYE before the first payday, choose payroll software, collect the employee’s information and make sure the first payroll submission is made correctly.
2. Setting Up Payroll Properly
Once registered, employers need to operate payroll correctly.
HMRC’s payroll guidance states that employers need to choose payroll software, record employee details, calculate pay and deductions, report to HMRC on or before the first payday, and pay HMRC the tax and National Insurance owed.
In practice, this means you need a proper system for:
- employee details
- gross pay
- tax codes
- National Insurance categories
- pension deductions
- statutory payments
- student loan deductions
- attachment of earnings orders
- net pay
- HMRC reporting
Payroll should not be handled casually through bank transfers without proper records.
3. Collecting the Right Employee Information
Before paying a new employee, you normally need:
- full legal name
- address
- date of birth
- National Insurance number
- start date
- pay frequency
- tax code information
- P45, if available
- starter checklist, if no P45
- student loan or postgraduate loan information
- bank details
- pension assessment details
HMRC guidance on new employees explains that employers should use the employee’s P45, or a starter checklist where there is no P45, to set them up on payroll and report them to HMRC.
Getting this wrong can result in incorrect tax codes and underpaid or overpaid tax.
4. Calculating PAYE and National Insurance
Employers must calculate deductions correctly.
This may include:
- Income Tax under PAYE
- employee National Insurance
- employer National Insurance
- pension deductions
- student loan deductions
- postgraduate loan deductions
- other statutory deductions
The business must then pay the correct net pay to the employee and the relevant deductions to HMRC.
Common Mistake
A business owner agrees to pay someone “£2,000 per month” without clarifying whether that means gross pay or net pay.
This can create confusion and unexpected employer costs.
Employment contracts and payroll records should be clear from the start.
5. Reporting Payroll to HMRC: Full Payment Submission
Payroll must usually be reported to HMRC through Real Time Information.
A Full Payment Submission, often called an FPS, tells HMRC about payments made to employees and the deductions taken from their pay. HMRC says employers use payroll software to send an FPS and must include everyone they pay, even if the employee earns below the PAYE threshold.
The FPS is normally due on or before the employee’s payday.
Practical Example
If staff are paid on the last working day of each month, payroll should be processed and reported to HMRC on or before that payday.
Leaving payroll submissions until after payment can create late filing issues.
6. Paying HMRC on Time
Employers must pay HMRC the PAYE tax, National Insurance and other deductions owed.
HMRC states that PAYE should generally be paid by the 22nd of the month if paying electronically, or by the 19th if paying by post.
For many small employers, monthly PAYE payments are the normal pattern, although some smaller employers may pay quarterly where eligible.
Common Mistake
A business pays employees correctly but forgets to pay HMRC.
This can lead to interest, penalties and cashflow pressure.
The PAYE bill should be treated as money owed to HMRC, not spare business cash.
7. Issuing Payslips
Employees and workers are generally entitled to an itemised payslip.
A payslip must show earnings before and after deductions, the amount of deductions that vary each time, such as tax and National Insurance, and hours worked where pay varies depending on time worked.
Payslips help avoid disputes because they show clearly:
- gross pay
- deductions
- net pay
- tax
- National Insurance
- pension contributions
- hours, where relevant
Practical Example
An hourly-paid employee works different hours each week.
Their payslip should clearly show the number of hours being paid where pay varies by hours worked.
8. Workplace Pension Duties
Payroll is not just about tax. Employers also have workplace pension responsibilities.
The Pensions Regulator states that automatic enrolment legal duties start from the day the first member of staff starts working for the employer. Even where an employer thinks no staff need to be put into a pension scheme, they still have duties.
Depending on the employee’s age and earnings, employers may need to:
- assess staff
- enrol eligible staff
- make employer pension contributions
- deduct employee contributions
- communicate with staff
- keep pension records
- complete required declarations
Common Mistake
A small business assumes pension duties do not apply because the employee is part-time.
That may be wrong. The employer still needs to assess the employee properly.
9. National Minimum Wage Compliance
Employers must ensure workers are paid at least the correct National Minimum Wage or National Living Wage.
This is not always as simple as checking the headline hourly rate.
Issues can arise with:
- unpaid working time
- deductions
- uniforms
- travel time
- training time
- salaried hours
- apprentices
- sleep-in or on-call arrangements
Employers must keep records proving they are paying the minimum wage. Records created on or after 1 April 2021 must generally be kept for at least 6 years.
Practical Example
An employee is paid hourly but regularly starts 15 minutes before their paid shift.
If that time is genuinely working time and unpaid, it could affect minimum wage compliance.
10. Keeping Payroll Records
Employers must keep accurate payroll records.
HMRC says payroll records must show that the employer has reported accurately, and they must be kept for 3 years from the end of the tax year they relate to. HMRC may check records and can estimate what is owed and charge penalties if full records are not kept.
Payroll records may include:
- employee details
- payments made
- deductions made
- tax codes
- National Insurance details
- FPS and EPS submissions
- statutory payment records
- pension deductions
- payslips
- expenses and benefits records
- leaver details
- starter checklists and P45s
Good records are essential if HMRC raises questions.
11. Handling Statutory Payments
Employers may need to deal with statutory payments such as:
- Statutory Sick Pay
- Statutory Maternity Pay
- Statutory Paternity Pay
- Statutory Adoption Pay
- Statutory Shared Parental Pay
- Statutory Parental Bereavement Pay
These payments have specific eligibility rules, calculation methods and record-keeping requirements.
Common Mistake
An employer assumes statutory payments are optional or informal.
They are not. Where an employee qualifies, the employer must deal with the payment correctly.
12. Starters and Leavers
Payroll responsibilities include dealing with employees who join or leave.
For new starters, the employer should collect the correct information, set the employee up in payroll software and report them to HMRC.
For leavers, the employer usually needs to:
- process final pay
- include any holiday pay due
- issue a P45
- update payroll records
- report the leaving date to HMRC
- update pension provider records
Practical Example
An employee leaves halfway through the month.
Their final payroll should include final salary, any holiday pay owed and correct leaving details.
13. Expenses and Benefits
If an employer provides expenses or benefits to employees or directors, these may need reporting to HMRC.
This can include:
- company cars
- private medical insurance
- beneficial loans
- accommodation
- certain travel or entertainment costs
- other taxable benefits
HMRC’s expenses and benefits guidance states that reporting expenses and benefits is generally due by 6 July after the end of the tax year, with employees also given a copy of the relevant information by 6 July.
Practical Example
A company provides a director with private medical insurance.
This may need to be reported as a benefit and may create Class 1A National Insurance obligations.
14. Directors and Payroll
Director payroll has some additional points to consider.
Many company directors take a combination of:
- salary
- dividends
- expenses
- pension contributions
- director’s loan repayments
These should not be mixed together.
Salary must be processed through payroll where applicable. Dividends are not salary and should be supported by company profits and dividend paperwork. Personal withdrawals may create director’s loan account issues.
Common Mistake
A director transfers money from the company each month and decides later whether it was salary, dividends or a loan.
This creates messy bookkeeping and can lead to tax problems.
15. Employment Status: Employee or Self-Employed?
Some businesses pay people as self-employed contractors when they may actually be employees or workers.
This is a high-risk area.
HMRC’s employment status guidance explains that tax status and employment law status can differ, and HMRC provides the CEST tool to help check whether someone should be classed as employed or self-employed for tax purposes.
Getting employment status wrong can lead to:
- unpaid PAYE
- unpaid National Insurance
- penalties
- employment rights claims
- pension issues
Practical Example
A worker uses the business’s equipment, works fixed hours, cannot send a substitute and is managed like an employee.
Calling them “self-employed” may not be enough if the facts suggest employment.
16. Common Payroll Mistakes Employers Make
Missing HMRC Registration
Some employers start paying staff before registering correctly.
Late FPS Submissions
Payroll should usually be reported on or before payday.
Incorrect Tax Codes
Using the wrong starter information can cause tax code problems.
Forgetting Pension Duties
Even small employers have automatic enrolment responsibilities.
Poor Record Keeping
Weak records make it harder to deal with HMRC checks or employee queries.
Confusing Salary and Dividends
This is common in owner-managed limited companies.
Ignoring Benefits
Company cars, medical insurance and other benefits need proper treatment.
Not Checking Minimum Wage
Deductions, unpaid time and uniforms can affect compliance.
Practical Payroll Scenario: Done Properly
A small company hires its first employee.
Before the first payday, the company:
- registers as an employer
- chooses payroll software
- obtains the employee’s starter details
- assesses pension duties
- agrees gross pay clearly
- runs payroll before payday
- issues a payslip
- submits the FPS to HMRC
- pays net wages to the employee
- pays PAYE and National Insurance to HMRC on time
- keeps payroll and pension records
This creates a clean and compliant payroll process.
Practical Payroll Scenario: Done Poorly
Another business hires someone casually.
The owner:
- pays them by bank transfer
- keeps no starter checklist
- does not issue payslips
- does not assess pension duties
- does not submit payroll reports
- assumes the worker is self-employed
- keeps limited records
Several months later, the business realises the worker should probably have been on payroll.
The business may then face:
- backdated payroll corrections
- tax and National Insurance issues
- pension compliance problems
- possible penalties
- employee disputes
This is why payroll should be set up properly from the beginning.
Frequently Asked Questions
Do I need to register for PAYE as soon as I hire someone?
If you need to operate PAYE, you must register as an employer before the first payday. You cannot register more than 2 months before you start paying people.
Do directors need payroll?
Often, yes, if they take salary. Many directors use payroll for a modest salary and take dividends separately, but the right structure depends on the company and personal circumstances.
Do I need payroll if staff earn below the tax threshold?
Possibly. HMRC says FPS submissions should include everyone you pay, even if they earn below the PAYE threshold. The position depends on the overall circumstances, so it should be checked.
When must payroll be reported to HMRC?
Payroll is normally reported to HMRC on or before payday through a Full Payment Submission.
When do employers pay PAYE to HMRC?
PAYE is generally due by the 22nd of the month if paid electronically, or the 19th if paying by post.
Do employers have to issue payslips?
Yes, employees and workers are generally entitled to itemised payslips showing pay and deductions.
Do small employers have pension duties?
Yes. Workplace pension duties start when the first member of staff starts working, even if no one needs to be enrolled immediately.
How long should payroll records be kept?
PAYE records must generally be kept for 3 years from the end of the tax year they relate to. Minimum wage records have longer requirements.
How PR Accountants Can Help
At PR Accountants, we help employers run payroll accurately and stay compliant.
We support businesses with:
- PAYE registration
- monthly payroll processing
- payslips
- RTI submissions
- director payroll
- pension contribution calculations
- starters and leavers
- payroll reports
- CIS and payroll coordination
- P11D and benefits support
- payroll record keeping
Our aim is to make payroll clear, compliant and stress-free.
Final Thoughts
Payroll is a key employer responsibility.
Done properly, it gives staff confidence, keeps HMRC reporting clean and helps the business avoid avoidable penalties.
The best approach is to:
- register correctly
- collect employee information properly
- run payroll before payday
- issue payslips
- report to HMRC on time
- pay PAYE on time
- assess pension duties
- keep proper records
- seek advice before problems arise
Payroll should not be treated as an afterthought. It is part of running a compliant, professional business.
Need Help Running Payroll Correctly?
If you are hiring staff, paying directors or unsure whether your payroll is being handled correctly, PR Accountants can help.
We provide practical payroll support for UK small businesses, directors and growing employers.
👉 Contact PR Accountants today for reliable payroll and accounting support. Contact Us
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