Jo Jinks

5 HR Mistakes That Could Cost Your Small Business Thousands

November 18, 20254 min read

5 HR Mistakes That Could Cost Your Small Business Thousands

Jo Jinks

Running a small business is challenging enough without worrying about employment law. But here’s the reality: HR mistakes can be incredibly expensive, and many microbusiness owners don’t realize they’re sitting on a potential legal time bomb.

Last year alone, employment tribunals cost UK businesses millions in compensation, legal fees, and lost productivity. The worst part? Most of these cases could have been prevented with proper HR procedures in place.

If you’re a small business owner, here are five critical HR mistakes that could seriously damage your bottom line – and how to avoid them.

1. Not Having Proper Employment Contracts

The Mistake: Using a handshake agreement or a basic template downloaded from the internet.

The Cost: Employment tribunals, unclear expectations, and disputes over terms and conditions.

Many small business owners think they can skip the paperwork when hiring their first few employees. “We’re like family here,” they say. But without a proper employment contract, you’re leaving yourself vulnerable to misunderstandings and legal challenges.

A comprehensive employment contract should include job responsibilities, working hours, holiday entitlement, notice periods, and disciplinary procedures. It’s not just about legal protection – it’s about setting clear expectations from day one.

Real Example: A small marketing agency hired a designer on a “trial basis” without a proper contract. When they decided to let him go after three months, he claimed unfair dismissal and won £8,000 in compensation because there was no clear probationary period documented.

2. Mishandling Disciplinary Procedures

The Mistake: Firing someone on the spot without following proper procedures.

The Cost: Unfair dismissal claims can cost between £1,000-£20,000+ in compensation.

We get it – when an employee isn’t performing or has done something wrong, emotions run high. But jumping straight to dismissal without following the proper disciplinary process is one of the most expensive mistakes small businesses make.

The ACAS Code of Practice requires you to:

  • Investigate the issue thoroughly

  • Hold a disciplinary meeting

  • Allow the employee to respond

  • Consider the appropriate penalty

  • Offer the right of appeal

Skip these steps, and you could face an automatic unfair dismissal claim.

Real Example: A café owner dismissed a waitress immediately after she was rude to a customer. Without following proper procedures, the tribunal awarded the employee £4,500 for unfair dismissal – money the small business couldn’t afford to lose.

3. Ignoring GDPR Compliance

The Mistake: Thinking GDPR only applies to big corporations.

The Cost: Fines up to £17.5 million or 4% of annual turnover, plus reputational damage.

Every business that processes personal data – including employee information – must comply with GDPR. This includes having proper privacy policies, data processing agreements, and procedures for handling data breaches.

Many small businesses assume they’re too small to be targeted, but the Information Commissioner’s Office (ICO) regularly investigates and fines businesses of all sizes.

Key Requirements:

  • Privacy notices for employees and customers

  • Lawful basis for processing personal data

  • Data breach notification procedures

  • Employee training on data protection

4. Inadequate Holiday and Sick Leave Policies

The Mistake: Not understanding statutory entitlements or keeping poor records.

The Cost: Holiday pay disputes, sick pay errors, and potential discrimination claims.

UK employees are entitled to 5.6 weeks of paid holiday per year (including bank holidays) but calculating this for part-time or irregular workers can be complex. Get it wrong, and you could face backdated holiday pay claims.

Similarly, Statutory Sick Pay (SSP) has specific rules about eligibility, rates, and record-keeping. Poor administration can lead to costly errors and employee grievances.

Common Issues:

  • Not paying holiday pay at the correct rate

  • Refusing holiday requests unreasonably

  • Miscalculating entitlements for part-time staff

  • Poor sick leave record-keeping

5. Lack of Grievance Procedures

The Mistake: Not having a clear process for employees to raise concerns.

The Cost: Discrimination claims, constructive dismissal, and toxic workplace culture.

When employees have concerns but nowhere to voice them, small issues can escalate into serious legal problems. Without a proper grievance procedure, you’re more likely to face:

  • Discrimination and harassment claims

  • Constructive dismissal cases

  • High staff turnover

  • Damage to your business reputation

A good grievance procedure should be:

  • Clearly communicated to all staff

  • Fair and impartial

  • Timely (with set timeframes)

  • Confidential where possible

  • Include the right of appeal

The Solution: Prevention is Better Than Cure

These mistakes are entirely preventable with the right HR support and documentation. You don’t need to become an employment law expert – you just need access to the right guidance and templates.

That’s exactly why we created HR Hub.

Our comprehensive service provides:

Legally compliant employment contract templates

Step-by-step disciplinary and grievance procedures

GDPR compliance guidance and templates

Holiday and sick leave calculators

24/7 chatbot support for quick questions

Telephone access to qualified HR professionals

Worried about your HR compliance? The HR Hub provided by Synergise HR Ltd provides you with everything you need to protect your business from costly employment law mistakes. From document templates to expert telephone advice, we make HR simple and accessible for microbusinesses.

Don’t wait until you’re facing a tribunal claim. Get your HR house in order now.

Contact us today for a demonstration of the Hub and learn how Synergise HR can support your business.

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