How to Register as an Employer for PAYE (UK Step-by-Step)

To register for PAYE as an employer, sign in to (or create) a HMRC business tax account, then complete the online register as an employer form on GOV.UK. HMRC posts your employer PAYE reference and Accounts Office reference, normally within a few weeks (allow up to 15 working days, or longer if you're overseas). You must register before your first payday, and you cannot register more than two months ahead.

That's the short version. Below is exactly when you need to do it, what you'll need to hand, and how to finish setting up payroll.

When do you need to register for PAYE?

You must register as an employer once you start paying anyone, including yourself as the sole director of a limited company, if any of these apply:

• You pay an employee £96 or more a week (the secondary threshold for 2026/27 is £96 a week, equal to £417 a month or £5,000 a year). For reference, the National Insurance Lower Earnings Limit for 2026/27 is £6,708 a year (£129 a week), and the PAYE threshold tracks the personal allowance of £12,570.
• The employee already has another job or receives a pension.
• You provide expenses or benefits such as a company car or private medical cover.
• The worker gets statutory pay (sick pay, maternity, paternity).

If you only pay staff below these thresholds and none of the above applies, you generally don't need a PAYE scheme, but you should still keep payroll records.

Do limited company directors need PAYE?

Usually, yes. Most owner-directors take a small salary plus dividends. The moment that salary touches the thresholds above, or you want to claim statutory payments or record National Insurance for your state pension, you'll need a PAYE scheme. Many directors set one up from day one even on a modest salary.

What you need before you start

Have these ready to make the application quick:

• Your National Insurance number (and those of any directors).
• Your business UTR (Unique Taxpayer Reference), for a limited company this is issued after incorporation.
• Company registration number and registered address (Companies House details).
• The date of your first payday and how many employees you expect.
• A Government Gateway user ID (you can create one during the process).

How to register: step by step

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1. Go to GOV.UK. Open the official register as an employer service and choose the route that matches you, sole trader, limited company, partnership, or one-off employer.
2. Sign in or create a Government Gateway account. This becomes your login for HMRC's online services.
3. Add the PAYE for Employers service to your business tax account and complete the registration form with your business details and expected first payday.
4. Submit and wait for your references. HMRC sends your employer PAYE reference (looks like 123/AB456) and your Accounts Office reference by post.
5. Enrol for PAYE Online. Use the activation details to access PAYE Online, where you'll view filings, payments and any notices from HMRC.

How long does PAYE registration take?

HMRC can take up to 15 working days to issue your employer PAYE reference, and it may take longer at busy times or if your business is based abroad. Because you can't register more than two months before your first payday, the safest window is roughly 4-6 weeks before you plan to pay anyone.

After you've registered

Getting the reference is only step one. To run payroll legally you'll also need to:

• Choose payroll software that's recognised by HMRC, so you can report Full Payment Submissions (FPS) on or before each payday.
• Report in real time (RTI). Every time you pay staff, you tell HMRC what you've paid and deducted.
• Pay HMRC the income tax and National Insurance you've withheld, by the 22nd of the following month (or the 19th if you pay by post).
• Set up workplace pensions. Auto-enrolment duties start from your first payday for eligible staff.

Get any of this wrong and the penalties stack up fast, which is where solid record-keeping earns its keep. Our bookkeeping services keep your payroll figures, deadlines and HMRC submissions in order so nothing slips. For quick answers on common payroll and tax questions, see our FAQ.

Common mistakes to avoid

• Leaving it too late. Registering after your first payday can mean late-filing penalties from day one.
• Registering too early. HMRC won't accept an application more than two months before you pay anyone.
• Forgetting the director. A single-director company that pays a salary still needs PAYE, being your only "employee" doesn't exempt you.
• Ignoring pensions. PAYE registration and auto-enrolment are separate duties; both can apply.

Talk to a Zmartly accountant

PAYE registration is straightforward when you know the thresholds and timings, but payroll itself rarely stays simple once benefits, statutory pay and pensions come into play. If you'd rather hand the whole thing over, get in touch with Zmartly and we'll register your scheme, run your payroll, and keep you the right side of every HMRC deadline.