If you’re choosing the best HR software for a UK small business, the short answer depends on your headcount and whether you want payroll bundled in. For teams under 10, Breathe HR (from £22 a month flat) or CharlieHR (free for up to four users) cover the basics without overcomplicating things. If you want HR and payroll together, Employment Hero is the strongest all-in-one option, and if employment law advice matters more to you than software depth, BrightHR includes a 24/7 advice line most rivals don’t.
This guide compares the main UK platforms on holiday tracking, absence management, document storage, right-to-work checks, performance reviews and payroll integration, priced by employee band, and covers the GDPR record-keeping duties that most vendor pages skip entirely.
Best HR software for small business UK: the shortlist
Before the detail, here’s where each platform actually fits.
- Breathe HR: flat monthly pricing by headcount band, strongest for small, stable teams that want simplicity over depth.
- CharlieHR: free for up to four users, a genuine starting point for very small startups.
- BrightHR: tiered pricing from around £16.67 a month, built around compliance and a 24/7 employment law advice line.
- Employment Hero: per-employee pricing from roughly £4 a head, the strongest choice if you want HR, payroll and benefits under one login.
- Sage HR: modular, from around £2.50 to £4 per user, useful if you already use Sage elsewhere.
- HiBob and Moorepay: quote-based, aimed at businesses of 50 or more employees rather than true small teams.
HR system comparison UK: what each platform actually covers
Every platform on this list claims to cover the basics, but the depth varies a lot once you look past the marketing page. Here’s how they stack up on the features UK small businesses ask about most.
Holiday and absence tracking
This is table stakes across every product here, but implementation differs. Breathe HR, BrightHR and CharlieHR all offer self-service holiday booking with manager approval workflows, automatic accrual calculations, and a shared team calendar so clashes are visible before they happen.
This matters more than it did a year ago. The Employment Rights Act 2025 changed several absence-related rules from 6 April 2026, including how sick pay and certain leave entitlements are handled from day one of employment. Any platform you choose should be keeping pace with this, and it’s worth asking a vendor directly how their absence records would hold up if the Fair Work Agency, which became operational with enforcement powers over statutory sick pay, holiday pay and National Minimum Wage from 7 April 2026, ever asked to see them.
Document storage and e-signature
All the mainstream platforms, Breathe HR, BrightHR, CharlieHR, Employment Hero and Sage HR, offer centralised document storage with e-signature support for contracts and policy sign-off. The difference tends to show up in search and audit trail quality rather than whether the feature exists at all; if you’re likely to need to produce a document quickly during a dispute or an inspection, test this specifically during any trial rather than assuming it works the way the sales page implies.
Performance review tools
Coverage here is genuinely uneven. Breathe HR and Employment Hero both include structured review cycles, goal tracking and 1-to-1 templates as standard. BrightHR and CharlieHR lean lighter on this, treating performance management as a secondary feature behind their core compliance and admin tools. If regular structured reviews matter to you specifically, it’s worth checking this before choosing on price alone.
HR software pricing UK: by employee band
Pricing in this market runs on two different models, and it genuinely changes which platform is cheapest depending on your headcount.
Per-employee pricing
Most platforms, including Employment Hero, Sage HR, CharlieHR, BambooHR and BrightHR, charge per user per month. Published rates currently run from around £2.50 to £10 per employee per month, though several providers (HiBob, Moorepay, Personio) don’t publish prices at all and require a sales conversation instead.
Flat, banded pricing
Breathe HR is the notable exception, charging a fixed monthly fee based on a headcount band rather than per person. It starts at £22 a month for up to 10 employees, and the per-head cost drops as you fill each band, meaning a team of 48 pays the same as a team of 11 on the same tier. For a business around 50 employees, this can work out to roughly £2 per employee, noticeably cheaper than per-employee pricing at that size.
Which model wins at your size
Banded pricing tends to win for stable teams sitting comfortably within a band. Per-employee pricing tends to win for very small or seasonal teams, since you’re not paying for headroom you don’t need. It’s worth running the actual maths against your current headcount and where you expect to be in 12 to 24 months before committing, rather than picking on brand recognition alone.
HR software for small companies: right-to-work checks
This is a genuine legal requirement, not a nice-to-have, and it’s worth understanding regardless of which platform you choose, since not every HR system handles it the same way.
UK employers must verify every employee’s right to work in the UK, either through a manual document check or a digital check via a certified Digital Verification Service (DVS) provider. Digital checks currently apply only to British and Irish citizens with a valid, unexpired passport or Irish passport card; everyone else goes through the Home Office’s online share code service, where the employee generates a code valid for 90 days and the employer verifies it directly.
Getting this wrong carries real financial exposure: civil penalties of up to £45,000 per illegal worker for a first breach, rising to £60,000 for repeat breaches, according to current Home Office guidance. Whichever check method you use, you must securely retain evidence, either digitally or as hard copy, for the duration of the person’s employment plus a further two years after they leave, then securely destroy it.
Some HR platforms, including Employment Hero and several enterprise-tier products, integrate right-to-work checking directly into onboarding workflows. Others expect you to run this separately and simply store the resulting evidence in the document library. If this is a genuine pain point for your business, ask specifically during any demo rather than assuming it’s built in.
Payroll integration: does the HR software actually run payroll?
This trips up a surprising number of buyers. Several of the most popular small business HR platforms, including BrightHR, CharlieHR and standard-tier Breathe HR, do not include native payroll. They manage people, absence and documents, but a separate payroll tool or bureau handles the actual pay run.
This isn’t necessarily a problem. Plenty of small businesses already have payroll sorted through a bookkeeper or dedicated software and simply want HR layered on top. But if you’re starting from scratch and want everything under one login, look specifically at Employment Hero or Sage HR’s higher tiers, which bundle HMRC-compliant payroll, RTI submissions and pension auto-enrolment support alongside the HR functionality.
If you go the separate-tools route, check that your chosen HR platform can at least export employee data cleanly to whatever payroll software you’re using, since re-keying the same starter and leaver information twice a month is exactly the kind of admin these platforms are meant to eliminate.
GDPR duties around employee records: what most vendor pages skip
This is the part almost every HR software comparison leaves out, and it’s genuinely something UK buyers ask about, since choosing a platform doesn’t remove your legal responsibility for the data inside it.
There’s no fixed statutory retention period
Under the storage limitation principle in UK GDPR, you must keep personal data no longer than necessary for the purpose you collected it for, but the law itself doesn’t set fixed retention periods for most HR records. This means you, as the employer, need a written, documented retention policy rather than keeping everything indefinitely “just in case,” which the Information Commissioner’s Office explicitly warns against.
Commonly used retention benchmarks
While not legally mandated, industry guidance from bodies like the CIPD, and legal requirements tied to specific claim types, give a reasonable starting point:
- Recruitment records for unsuccessful applicants: typically 6 to 12 months, reflecting the standard time limit for bringing most employment tribunal claims.
- Personnel files and training records: commonly retained for 6 years after employment ends, aligning with general contract limitation periods.
- Payroll and income tax records: a legal minimum of 3 years from the end of the relevant tax year.
- Working time records, including overtime and holiday: 2 years from the date they were made.
- Statutory maternity pay records: 3 years after the tax year in which the maternity period ends.
The penalties for getting this wrong
Non-compliance with UK GDPR storage principles carries the same enforcement exposure as any other data protection breach: fines of up to £17.5 million or 4% of global annual turnover, whichever is greater, according to the ICO’s published enforcement framework. In practice, most small business breaches don’t reach anywhere near that ceiling, but the principle matters, and it’s exactly the kind of thing an HR platform’s default settings can quietly get wrong if nobody’s checked.
What to check in any HR software you’re evaluating
- Does the platform let you set different retention periods for different record types, rather than one blanket setting?
- Can it flag or automatically archive records once a retention period has passed?
- Does it produce a clear audit trail showing when data was collected, accessed and deleted?
Very few vendor marketing pages mention this directly, so it’s worth asking during a demo rather than assuming it’s handled.
FAQs
What is the best HR software for a small UK business?
For teams under 10 employees, Breathe HR (from £22 a month flat) or CharlieHR (free for up to four users) cover holiday tracking, document storage and absence management without unnecessary complexity. If you want payroll bundled in as well, Employment Hero is the strongest all-in-one option.
How much does HR software cost in the UK?
Per-employee pricing typically runs from £2.50 to £10 per employee per month, while flat banded pricing like Breathe HR starts at £22 a month for up to 10 employees. Larger platforms aimed at businesses of 50 or more employees, such as HiBob and Moorepay, generally require a custom quote.
Does HR software include payroll?
Not always. BrightHR, CharlieHR and standard Breathe HR plans manage people and absence data but don’t run payroll, so you’d need a separate payroll tool or bureau. Employment Hero and higher Sage HR tiers include native HMRC-compliant payroll with RTI submissions.
Can HR software handle right-to-work checks?
Some platforms, including Employment Hero, integrate right-to-work verification directly into onboarding, while others expect the check to be done separately and the resulting evidence simply stored in the document library. Whichever route you use, evidence must be securely retained for the duration of employment plus two years afterwards.
How long can I legally keep employee data under UK GDPR?
There’s no single fixed period; UK GDPR requires you to keep data only as long as necessary for the purpose you collected it for, documented in a clear retention policy. Common benchmarks include 6 to 12 months for unsuccessful applicant records and 6 years for personnel files after employment ends.
Is free HR software good enough for a small business?
For very small teams, CharlieHR’s free tier (up to four users) or Zoho People’s free plan (up to five users) can cover basic leave tracking and document storage adequately. Free tiers typically lack payroll integration, advanced reporting and priority support, so they’re best treated as a starting point rather than a permanent solution.
What’s the difference between per-employee and flat-rate HR software pricing?
Per-employee pricing charges a fixed amount for each person on the platform, which scales predictably but can get expensive as headcount grows. Flat, banded pricing like Breathe HR charges the same fee across a headcount range, meaning the per-head cost drops the closer you are to filling that band.
Do I need HR software if I only have a few employees?
Most guidance suggests HR software starts paying for itself somewhere between 5 and 10 employees, when holiday clashes, missing documents and onboarding gaps begin costing more time than the software itself. Below that, a well-organised spreadsheet can often still work, though document storage and right-to-work compliance become harder to manage manually as you grow.
