What Disclosures Are Required in Influencer or Affiliate Marketing?
The Hidden Legal Trap Behind Every Sponsored Post and Affiliate Link
• 29 Sep 25
“Influencer marketing is powerful - but if you don’t disclose it properly, it’s not just misleading, it’s illegal.” - Matthew Glynn
Introduction
Influencer and affiliate marketing may be the fastest-growing channels in digital marketing - but they’re also among the most legally exposed. If your startup is using influencers or affiliate links without proper disclosure, you may already be breaching advertising laws.
This issue may not apply to every startup - but if it does, and you’ve missed it, the consequences can be serious. Disclosure rules are clear, enforceable, and increasingly monitored by regulators, platforms, and consumers alike. And yet, many startups still treat them as optional or overlook them entirely.
In this blog, we’re going to flag up some key considerations to help you better prepare to tackle this issue - because prevention is always better than the cure.
Legal issues are important but easily overlooked, especially when founders are focused on the big launch or are otherwise caught up in the issue of the day - and in a startup, there’s always an “issue of the day”.
Optional Inclusion: What Is Influencer and Affiliate Marketing?
Influencer marketing involves paying or incentivising individuals (typically with large social media followings) to promote your product or service.
Affiliate marketing involves compensating individuals or platforms for driving traffic or sales via tracked links. Both are forms of paid promotion - and that’s where the legal obligations begin.
If the audience isn’t clearly told that the content is sponsored or incentivised, it may be considered misleading advertising.
Why This Topic Is Important
This can be an important issue for start-ups because:
◼️Legal Requirement: Most jurisdictions require clear disclosure of paid endorsements and affiliate relationships.
◼️Consumer Trust: Undisclosed promotions can damage credibility and erode brand trust.
◼️Platform Compliance: Social media platforms enforce their own disclosure rules - violations can lead to bans.
◼️Regulatory Scrutiny: Authorities in Singapore and the UK actively monitor influencer activity for compliance.
◼️Rapid Growth: Influencer and affiliate marketing often scale quickly - increasing legal exposure.
◼️Content Virality: Misleading content can spread fast - and backlash can be swift.
◼️Investor Risk: Non-compliance in public-facing campaigns is a red flag in due diligence.
◼️Cross-Border Complexity: Disclosure standards vary across jurisdictions and platforms.
◼️Team Confusion: Marketing teams may not know what counts as “paid” or “sponsored”.
◼️Reputational Exposure: Consumers are increasingly savvy - and quick to call out undisclosed promotions.
Q: Do influencers need to disclose if they’re paid to promote a product?
A: Yes - in most jurisdictions, paid promotions must be clearly and prominently disclosed to avoid misleading consumers.
Consequences of Not Addressing This Issue
The consequences of not attending to this issue may include the following:
Legal Implications
◼️Regulatory Fines: Breaches of advertising laws (e.g., Singapore’s CPFTA or the UK’s CAP Code) can result in penalties.
◼️Enforcement Action: Authorities may order content removal, issue public warnings, or ban future campaigns.
◼️Litigation Risk: Consumers or competitors may initiate legal action for misleading advertising.
Commercial Implications
◼️Loss of Customers: Consumers may abandon brands that appear dishonest or manipulative.
◼️Partnership Breakdown: Influencers and affiliates may sever ties over compliance concerns.
◼️Marketing Restrictions: Platforms may suspend accounts or block promotional content.
Operational Implications
◼️Campaign Disruption: Non-compliant posts may be taken down mid-campaign.
◼️Resource Drain: Legal remediation and PR recovery can consume time and budget.
◼️Team Paralysis: Uncertainty around disclosure rules can stall influencer strategy.
Biz Valuation Issues
◼️Due Diligence Failures: Investors may flag undisclosed promotions as a compliance risk.
◼️Exit Risk: Acquirers may walk away from deals involving reputational exposure.
◼️Brand Devaluation: Public backlash over misleading content can permanently damage brand equity.
The above lists are indicative issues - the relevance of which will depend on your circumstances including the nature of business undertaken by your start-up.
What You Need to Be Doing
We have identified quite a number of potential issues that the start-up needs to consider and below are some examples of the types of steps you might want to consider taking to address these issues considered above.
1. Identify Paid Relationships
Review all influencer and affiliate arrangements to determine whether compensation (cash, gifts, discounts) is involved.
If there’s any form of benefit, disclosure is likely required.
2. Use Clear Disclosure Language
Ensure influencers use clear terms like “Ad”, “Sponsored”, or “Paid Partnership” - not vague hashtags like #thanks or #collab.
In the UK, the ASA requires disclosures to be “obvious and upfront”. Singapore’s CCCS also expects clarity.
3. Place Disclosures Prominently
Disclosures must be visible - not buried in hashtags or hidden in captions.
On video platforms, disclosures should appear early and be verbalised if possible.
4. Review Affiliate Content
Ensure affiliate links are accompanied by a clear statement that the poster earns commission from purchases.
This applies to blogs, social media posts, and email campaigns.
5. Train Influencers and Affiliates
Provide written guidelines on disclosure requirements.
Include sample language and platform-specific instructions.
6. Monitor Campaigns Actively
Track influencer and affiliate content to ensure disclosures are being made consistently.
Use tools or manual checks to audit compliance.
7. Document Agreements
Keep records of all influencer and affiliate arrangements - including compensation terms and disclosure obligations.
The above suggestions are just a few of the steps you can consider taking. There are many more things that need to be done to ensure the associated risks are effectively and pragmatically dealt with.
Q: Is a free product considered payment for disclosure purposes?
A: Yes - in most jurisdictions, receiving free products in exchange for promotion counts as a paid endorsement and must be disclosed.
How These Risks Can Play Out
Case Study 1: The Influencer Ban
A startup in Singapore ran a campaign with local influencers who failed to disclose paid partnerships. The CCCS issued a warning, and the platform suspended the startup’s ad account for 30 days - derailing their product launch.
Case Study 2: The ASA Ruling
A UK-based startup used Instagram influencers to promote a new supplement. The posts lacked clear disclosures. The ASA ruled the campaign misleading, and the startup was banned from running similar ads for six months.
Case Study 3: The Affiliate Fallout
A startup’s blog featured affiliate links without disclosure. A competitor filed a complaint, and the startup was forced to remove hundreds of posts - losing SEO rankings and affiliate revenue overnight.
Frequently Asked Questions
Q: Do I need to disclose if I give an influencer a free product?
A: Yes - free products given in exchange for promotion count as compensation and require disclosure.
Q: Can I rely on the influencer to handle disclosure?
A: No - as the brand, you are jointly responsible for ensuring compliance.
Q: What’s the best way to disclose affiliate links?
A: Use clear statements like “I may earn a commission from purchases made through these links.”
Q: Are disclosure rules the same across platforms?
A: No - each platform has its own policies, and you must comply with both legal and platform-specific rules.
Understanding the Legal Terminology
Paid Endorsement: A promotion made in exchange for compensation - including money, gifts, or discounts.
Affiliate Link: A tracked URL that earns commission for the referrer when a purchase is made.
Disclosure Statement: A clear notice that content is sponsored or incentivised.
CAP Code (UK): The UK’s advertising code governing marketing communications.
CPFTA (Singapore): Singapore’s Consumer Protection (Fair Trading) Act - prohibits misleading advertising.
ASA (UK): Advertising Standards Authority - enforces disclosure rules in the UK.
CCCS (Singapore): Competition and Consumer Commission of Singapore - monitors fair trading practices.
How GLS Can Help You
By building your legal team capability on the GLS platform, you will be capable of:
◼️Rapidly assessing your influencer and affiliate marketing compliance risks
◼️Accessing pre-built disclosure templates and campaign checklists
◼️Getting expert reviews of your promotional content before launch
◼️Training your team and partners on disclosure obligations
◼️Avoiding costly legal missteps before they happen
Final Thoughts
Influencer and affiliate marketing can supercharge your startup’s growth - but only if it’s done transparently and legally. Disclosure isn’t optional. It’s a legal requirement, a trust signal, and a reputational safeguard. With the right legal infrastructure in place, you can run powerful campaigns that build your brand - not break it.
Observation and Tips
- Disclose Paid Relationships Clearly: Ensure influencers and affiliates visibly disclose sponsored or paid partnerships.
- Use Clear Disclosure Language: Avoid vague tags or hidden disclosures that users may not easily understand.
- Place Disclosures Prominently: Display disclosures near endorsements, links, or promotional claims.
- Follow Platform Disclosure Rules: Comply with advertising and disclosure requirements imposed by each platform.
- Monitor Influencer Compliance: Actively review posts and campaigns for missing or inadequate disclosures.
- Address Affiliate Link Transparency: Inform users when links generate commissions or financial benefits.
- Document Disclosure Obligations: Include disclosure requirements expressly within influencer and affiliate agreements.
- Train Marketing Teams & Creators: Ensure all participants understand applicable advertising and endorsement obligations.
- Maintain Records of Campaigns: Retain copies of posts, disclosures, and approvals for compliance purposes.
- Manage Cross-Border Campaigns: Adapt disclosures to differing advertising and consumer protection laws globally.
- Avoid Misleading Endorsements: Do not permit false claims, fake reviews, or deceptive promotional practices.
- Prevent Hidden Advertising Practices: Undisclosed sponsorships increase risks of penalties and reputational damage.
- Ensure Ongoing Compliance Reviews: Regular audits help identify disclosure gaps before regulatory scrutiny arises.
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