How to set up xero Payroll for the first time

11 Apr

Setting up new software for the first time is one of those jobs that always looks straightforward on paper. You sign up, follow the steps, and before long, everything’s running smoothly. At least, that’s the idea.

The reality is a little different.

Xero Payroll is one of the better payroll systems out there for small businesses like yours. Once it’s set up correctly, it really does make payday feel effortless.

But getting to that point requires more preparation than you might expect. If you miss a step or enter something incorrectly early on, you can end up with problems that are difficult to fix later.

This blog walks you through what’s involved in setting up Xero Payroll for the first time. We’ll show you what to prepare, what to expect, and where the common pitfalls are. We’ll also look at how Xero Payroll works day-to-day once you’re up and running, and why it’s worth getting expert support to get your setup right the first time.

Before you start

Trying to set up Xero Payroll without the right information to hand is a bit like trying to fill in a tax return without your records. You’ll get partway through, then grind to a halt. So, before you log into Xero and start clicking through the setup screens, it’s worth taking some time to gather everything you’ll need. There are three main categories of information to pull together:

Payroll account details

You’ll need the details of the bank account(s) you use to pay your employees, along with the relevant account codes in Xero for your payroll liabilities and expenses. If your chart of accounts isn’t already set up correctly in Xero, it’s worth sorting that first.

HMRC information

You’ll need your employer PAYE reference, your Accounts Office reference, and your Real Time Information (RTI) credentials (the user ID and password you use to log into the Government Gateway). Importantly, you’ll need to activate and validate your RTI credentials with HMRC before Xero will accept them. If you haven’t done this yet, factor in some extra time, as it won’t happen instantly. If you’re eligible for Small Employers’ Relief or Employment Allowance, you’ll also need the details to hand, as both can be configured during setup.

Employee information

For each member of staff, you’ll need their NI number, tax code, start date, pay frequency, salary or wage details, and pension information. If any employees joined you partway through the current tax year, you’ll also need their P45s. And if you’re switching from another payroll system mid-tax year, you’ll need your year-to-date figures, too.

Setting up Xero Payroll: the key steps

Once you’ve got everything to hand, the Xero Payroll setup process follows a logical sequence.

The first step is connecting your payroll to the right bank account in Xero and mapping your payroll liability and expense accounts. This is the foundation everything else sits on, so it’s worth double-checking your account codes are correct before moving on.

Next, you’ll configure how often you pay your employees, whether that’s weekly, fortnightly, monthly or another arrangement. Inputting the correct pay period start date here is essential, because it determines which tax period each pay run falls under and affects how pension contributions are calculated. Getting the start date wrong can create headaches further down the line.

Once you’ve done the first two steps, you’ll enter your employer PAYE reference and RTI credentials so that Xero can file your Full Payment Submissions directly with HMRC. You can also configure your Employment Allowance and Small Employers’ Relief at this stage, if applicable.

Next, Xero lets you set up your working pattern templates, so it can accurately calculate your team’s contracted hours and leave entitlement. If your employees work different schedules, you can create multiple templates and assign them individually. You can also configure your holiday calendar here, including bank holidays.

If your workplace pension is with NEST or The People’s Pension, Xero has a direct integration that makes contribution processing and filing straightforward. If you’re with a different provider, the process is more manual.

Next, set up your pay items, including types of earnings and leave, deductions, reimbursements, and any earnings orders. These are the building blocks of each pay run. Setting them up correctly from the start means your pay runs will be accurate, and your payroll journal will automatically post to the right places in your accounts.

Finally, input your opening balances. If you’re switching to Xero Payroll partway through the tax year, this step is critical, so we’ll cover it in more detail in the next section.

One thing you really can’t afford to get wrong

If you’re moving to Xero Payroll from another system mid-tax year, entering your opening balances correctly is the single most important thing you’ll do during setup. It’s also the step that catches businesses out most often.

Your opening balances capture year-to-date figures for things like statutory payments made to employees and any remaining Employment Allowance. To get them right, you’ll need to refer to the last Employer Payment Summary (EPS) submitted by your previous payroll software. Without it, you’re guessing, and guessing wrong here can have real consequences.

If you enter your opening balances incorrectly, your payroll records won’t reconcile properly with what’s been reported to HMRC. Come year-end, your P60s will be wrong, and unpicking the errors at this late stage is both time-consuming and stressful.

Once you post your first pay run in Xero, those opening balance fields lock. You can’t go back and edit them. So, if you realise later that you entered something incorrectly, correcting it requires HMRC involvement and, in some cases, amending your filings. It’s the kind of detail that’s easy to overlook when you’re setting things up alone for the first time, but it’s something an experienced Xero specialist will check as a matter of course.

How easy is Xero Payroll to use once it’s set up?

Provided your setup is done correctly, using Xero Payroll is as straightforward as it promises to be.

Processing a standard pay run involves opening it, reviewing the figures (which populate automatically for your salaried employees), making any adjustments for overtime, sick leave or new starters, and hitting approve. Xero then handles all the tax and National Insurance calculations automatically, using the latest HMRC rates. Your RTI submission goes to HMRC without you having to do anything separately.

Xero then generates payslips and sends them straight to your employees’ inboxes. And a bank payment file is created so you can pay everyone in a few clicks rather than setting up individual transfers. The payroll journal posts automatically to your accounts, too, so your P&L stays current without any manual data entry.

Xero automatically calculates and tracks pension contributions. It also calculates any statutory payments, such as sick, maternity or paternity pay, once you’ve recorded the relevant absence.

For most small businesses, this is a significant time saving, not just on payday, but throughout the month.

You can also read more about using Xero Payroll on our previous blog here.

Why it’s worth getting expert help with your setup

Given how well Xero Payroll works day-to-day, it’s tempting to think the setup is something you can work through yourself. And to be fair, plenty of businesses do.

But the setup stage is where things can go wrong, and the consequences tend to compound over time.

Incorrect account mapping can cause your payroll costs to post to the wrong place in your accounts.

A wrong pay period start date can create pension compliance issues. Missing or inaccurate opening balances can result in P60 errors at year-end. And an RTI submission that fails because your Government Gateway credentials weren’t properly activated can leave you exposed to sanctions from HMRC.

None of these are disasters in isolation. But they all take time and expertise to fix, often more than it would have taken to get the setup right in the first place. That’s why it makes sense to work with a Xero specialist from the start.

At Progression Accountancy, we’ve helped hundreds of businesses across the UK set up Xero Payroll correctly, configuring accounts, entering opening balances, building pay items and walking clients through their first pay run so they feel confident doing it themselves.

As a Xero Gold Partner, we’ve seen every variation going, so we know where the common pitfalls are, how to avoid them, and how to get your payroll working correctly from day one.

The goal isn’t to make you dependent on us for every single pay run. It’s the opposite. We’re here to help you set everything up properly so you can run payroll yourself, knowing it’s accurate and compliant. When questions do come up, we’re here. But for most clients, once the setup is right, day-to-day payroll runs itself.

So, if you’d like to talk through your situation, whether you’re setting up Xero Payroll for the first time, switching from another system, or just not sure where to start, we’d be happy to help.

Get in touch, and we’ll take it from there.