Advertising for Law Firms: What You Can & Can't Say

If you’re a law firm in the UK, advertising isn’t just about clever copy and slick visuals – it’s about staying inside the lines. And those lines are sharper than most marketers realise.

Legal marketing has come a long way, but it’s still walking a tightrope. You’ve got to promote your services, stand out in a crowded field, and build trust – all without tripping over a compliance breach. Sounds like a balancing act, right? Let’s unpack exactly what law firms can and can’t say in their advertising – and how to stay competitive without crossing the line.

Not legal advice. This is general marketing guidance. Rules change, so always check the current SRA Standards and Regulations, the CAP Code and your ad platform’s policies before you publish – and take your own compliance advice where you’re unsure.

Why Legal Advertising Rules Exist in the First Place

Law isn’t just another service – it’s a regulated profession. Clients are often vulnerable, stakes are high, and misleading advertising can do real damage. That’s why the Solicitors Regulation Authority (SRA) keeps a close eye on how firms market themselves.

Two bodies matter most for your ad copy. The SRA governs solicitors directly – Rule 8.8 of the SRA Code of Conduct requires that all publicity about your practice is “accurate and not misleading”, including anything about your charges. The Advertising Standards Authority (ASA), which enforces the CAP Code, polices marketing across every channel and can order ads pulled regardless of who runs them. On top of that sit the ad platforms themselves – Google and Meta apply their own legal-services rules that are often stricter than the regulators.

The goal is simple: protect the public and keep the profession honest. For firms, this means every claim, every testimonial, and every headline needs to be above board.

What Law Firms Can Say in Ads (If Done Right)

Let’s start with the good news – you absolutely can advertise. You can use paid social, Google Ads, display campaigns, even retargeting. But you’ve got to play it smart.

1. You Can Promote Your Services – Just Stick to the Facts

Feel free to say what you do – family law, conveyancing, personal injury, commercial disputes, you name it. But the wording needs to be clear, honest and not overpromise. “Experienced personal injury solicitors” is fair. “Guaranteed compensation in 24 hours”? That’s where you’ll hit a wall.

2. You Can Highlight Your Experience

Years in business, number of clients helped, specialist accreditations – all solid. Just make sure any stats are up to date and can be backed up. “Over 10,000 successful claims since 2010” works – assuming you’ve got the data to prove it. Under the CAP Code you must hold documentary evidence for objective claims before the ad runs, not scramble for it after a complaint.

3. Client Testimonials Are Allowed – With Conditions

Social proof is powerful. The SRA allows testimonials, but the CAP Code (rule 3.45) requires you to hold signed, genuine testimonials and contact details for the people who gave them, ready to substantiate if challenged. Get written consent, avoid cherry-picking quotes that imply an unrealistic result, and never use staged or invented reviews.

4. You Can Use Paid Ads – Just Mind the Targeting

PPC and paid social can be great channels, especially for local campaigns or specific practice areas. Just avoid predatory tactics. Targeting people based on health conditions, injuries or life events like bereavement isn’t only unethical – it breaches both platform policy and SRA Rule 8.9, which bans targeted, individualised approaches to members of the public.

Compliant vs Non-Compliant: A Swipe File

Rules are easier to follow when you can see them applied. Here’s how five common claim types look on the wrong side of the line – and how to rewrite them so they still sell.

Claim type	Non-compliant example	Compliant rewrite	Rule it breaches (SRA / ASA / platform)
Outcome guarantee	”We’ll win your case – 100% success rate, guaranteed."	"Experienced litigation solicitors with a strong track record in [practice area].”	SRA Rule 8.8 (misleading publicity); CAP Code s.3 (misleading claims); Google Ads bans guaranteed-outcome claims
Fees / no win no fee	”No win, no fee – keep 100% of your compensation."	"No win, no fee. If you win, our success fee is up to 25% of your damages, and you may be liable for some costs in certain circumstances – full terms before you sign.”	SRA Rule 8.8 (charges must be clear); CAP Code no-win-no-fee guidance (see the KP Law, Jones Whyte and JLG Legal rulings)
Testimonials	”★★★★★ ‘They got me £50k in a week!’ – anonymous client."	"Genuine client reviews, shown with permission, with evidence held on file.”	CAP Code rule 3.45 (testimonials must be held and verifiable); SRA Rule 8.8
Urgency	”Act now or lose your right to claim forever!"	"Strict time limits apply to many legal claims – contact us to check your deadline.”	CAP Code s.3 (misleading urgency / false deadlines); SRA Rule 8.8
Sensitive targeting	Retargeting visitors to an “injury claim” page, or targeting users by a health condition or recent bereavement.	Target by location, service and keyword intent – not by personal circumstances.	Google “personal hardships” personalised-ads policy; Meta personal-attributes policy; SRA Rule 8.9; UK GDPR special-category data

What You Can’t Say – And Why It Matters

Here’s where firms often get caught out. One poorly worded headline or exaggerated claim, and you’ve got a complaint on your hands. In a world where reputation is currency, it’s not worth the risk.

1. No Guarantees of Outcome

Saying “we’ll win your case” or “100% success rate” is a non-starter. Even if your track record is excellent, outcomes can never be promised. Focus instead on your process, your experience, and your client care.

2. No Undue Pressure or Sensationalism

Avoid ads that feel like fear-mongering. “Act now or lose your chance to claim!” sounds more like a dodgy insurance ad than a professional legal service. Genuine time limits are worth flagging – manufactured deadlines and manipulation are not, and the ASA treats false urgency as misleading.

3. No Misleading Fee Info

This is the single biggest enforcement risk right now. The ASA has repeatedly ruled against law firms – including KP Law, Jones Whyte Law and JLG Legal – for “no win, no fee” ads that failed to explain, clearly and up front, how fees are calculated (the percentage deducted from any compensation) and that clients could still be liable for costs in some circumstances. “Up to £10,000” style headlines were also found misleading where the firm couldn’t substantiate that a meaningful proportion of claimants would receive that sum, and where the figure ignored fee and insurance deductions. If you use “no win, no fee” or “no upfront costs”, the explanation has to be prominent, not buried in small print.

4. No Cold Advertising in Sensitive Areas

Be especially cautious with personal injury, medical negligence, or criminal law. Directly targeting individuals based on sensitive data is a major breach. Always check your platform’s targeting policies and make sure they align with both UK GDPR and SRA guidance.

The Platform Layer: Google and Meta Have Their Own Rules

Even a perfectly SRA- and ASA-compliant ad can be rejected by the platform – because Google and Meta apply their own legal-services and personalised-advertising policies.

On Google Ads, guaranteed-outcome language (“win your case”, “we guarantee compensation”) is disallowed, and personal-injury and legal advertisers face verification requirements before some ad formats will run. Crucially, Google’s personalised advertising policy treats health conditions, injuries, trauma and financial hardship as “personal hardships” you cannot target. In practice that means standard remarketing and Remarketing Lists for Search Ads (RLSA) are off the table for injury and hardship-related campaigns – you build demand through keyword and location intent instead.

On Meta, the personal attributes policy prohibits copy that asserts or implies you know something personal about the viewer – so “Injured in an accident?” or “Struggling with debt?” framing can get an ad rejected. Sensitive categories also trigger restricted targeting, limiting how narrowly you can define your audience.

If you run paid campaigns across regulated professions, our guide to PPC marketing for financial advisors and accountants covers the same intent-based approach that keeps sensitive-sector ads live.

Beyond the Ad: Price Transparency, Reviews and Referrals

Compliance doesn’t stop at the ad copy – the page it points to matters just as much.

• Price transparency. The SRA Transparency Rules require firms to publish clear cost and service information for certain regulated services – including residential conveyancing, uncontested probate (UK assets), summary-only motoring offences, unfair or wrongful dismissal claims, and immigration (excluding asylum), plus business debt recovery up to £100,000, employment-tribunal defence and licensing applications. You need a total price or realistic range, disbursements, VAT, what’s included, timescales and the qualifications of those doing the work. If your ad drives clicks to a landing page for one of these services, that page has to comply.
• Reviews and testimonials. Beyond written consent, keep evidence that each review is genuine so you can substantiate it if the ASA asks.
• Referral fees. If you pay for or receive referrals, disclosure obligations apply under the SRA Code – don’t let a lead-gen arrangement create a hidden conflict or an undisclosed cost to the client.

Compliance Is a Competitive Advantage

Here’s the thing – following the rules doesn’t hold you back. It sets you apart.

Law firms that advertise with integrity, clarity and professionalism come across as more credible. And in a field built on trust, that’s everything. The best campaigns don’t need gimmicks. They need strong messaging, authentic positioning and a clear value proposition.

Your Pre-Publish Compliance Checklist

Before any legal ad goes live, run it through this quick self-audit:

• No guaranteed outcomes – no “win”, “100% success” or promised results.
• Fees explained up front – any “no win, no fee” claim states the success-fee percentage and possible cost liability, prominently.
• Claims are substantiated – you hold evidence for every stat and testimonial before the ad runs.
• No individualised or sensitive targeting – no health, injury, hardship or bereavement targeting; no injury-page remarketing.
• Platform policy checked – copy and targeting pass Google’s and Meta’s legal-services and personalised-ads rules.
• Landing page compliant – price transparency in place for regulated services; claims match the ad.
• Sign-off logged – marketing and compliance have both reviewed it.

Want a broader operational review? Our how to audit a Google Ads campaign walkthrough and Google Ads pre-launch checklist pair neatly with the compliance checks above.

How to Build Campaigns That Win (Without Risking It All)

We’ve worked with law firms to build ad strategies that hit the sweet spot – compliant, compelling, and commercially sound. Here’s what I’d recommend:

• Audit your existing ads – What’s being said, how it’s phrased, and whether it’s fully compliant. Most firms miss something.
• Align marketing and compliance teams – No more silos. Everyone needs to be on the same page.
• Invest in ad copy that’s sharp and safe – It’s not about watering things down. It’s about knowing how to say it right.
• Train your internal team – If your marketing execs don’t understand the legal dos and don’ts, mistakes will happen.

Final Word: Compliance Isn’t a Box-Tick – It’s Part of Your Brand

Clients notice the details. If your advertising feels trustworthy, clear and professional, they’re more likely to pick up the phone. And when regulators or competitors come sniffing around your marketing, you’ll sleep better knowing you’ve done it right.

Law firm advertising is a minefield for some – but a massive opportunity for those who get it right. Want to stand out and stay safe? Start by treating compliance as part of your strategy, not just a hurdle.

FAQ

Can law firms advertise on Google and social media at all?

Yes. General, non-targeted advertising – search ads, paid social, display, billboards, radio – is permitted. What’s banned under SRA Rule 8.9 is making direct, individualised approaches to members of the public. So a Google Search ad for “conveyancing solicitors in Leeds” is fine; targeting a specific person because of something you know about their circumstances is not.

Is “no win, no fee” allowed in ads?

Yes, but it has to be explained. The ASA has ordered several firms to pull “no win, no fee” ads that didn’t clearly and prominently set out how the fee is calculated (the percentage taken from compensation) and that the client could still face some costs. Keep the explanation visible, not hidden in small print or a linked document.

Why do my personal injury ads keep getting disapproved on Google?

Google treats injuries and health conditions as “personal hardships” under its personalised advertising policy, so remarketing and audience targeting around them are restricted. Legal and personal-injury advertisers may also need to pass verification. Build campaigns around keyword and location intent rather than personal circumstances.

Do the SRA Transparency Rules apply to my ad landing pages?

Indirectly, yes. For specified services – such as conveyancing, uncontested probate, certain employment claims and immigration – you must publish clear price and service information on your website. If your ads send traffic to those service pages, they need to carry that information to stay compliant.

Can I use client reviews and testimonials in ads?

Yes, if they’re genuine, consented and evidenced. The CAP Code requires you to hold the actual testimonials and be able to verify them, and the SRA requires publicity to be accurate and not misleading. Avoid staged reviews or quotes that imply a result you can’t guarantee.