Why keeping old receipts in your wallet could be a health risk

January 30, 2026

In a world where hygiene and health have become paramount concerns, the humble paper receipt is often overlooked as a potential threat. Recent studies reveal that keeping old receipts in your wallet can pose significant health risks, primarily due to harmful chemicals like bisphenol A (BPA) and bisphenol S (BPS) that are commonly found on thermal paper. These substances can transfer to the skin and even disrupt hormonal balance. Receipts can also harbour bacteria and germs as they accumulate through daily interactions, leading to possible skin irritation or contamination. In light of these findings, it becomes crucial to rethink the clutter accumulating in wallets and consider the implications for both health and hygiene.

Understanding the Chemical Risks of Receipts

Research shows that handling thermal paper receipts, even briefly, can lead to measurable amounts of BPA being absorbed through the skin. A tense moment in your next purchase could inadvertently expose you to a chemical often linked to severe health issues. The consistent handling of these receipts might not only contribute to chemical exposure, but can also result in long-term health effects that are yet to be fully understood. Experts suggest that customers should opt for digital receipts whenever possible to limit exposure.

The Hidden Germs Lurking in Your Wallet

In addition to chemicals, receipts can be a breeding ground for bacteria. Studies indicate that these slips of paper can carry more germs than banknotes, as they often change hands multiple times and touch surfaces like shopping carts and counters that may not be regularly sanitised. This contamination raises concerns about hygiene, especially for those who frequently reach into their wallets. Keeping receipts nestled alongside essential items may lead to serious health implications.

Simple Tips for Managing Receipts

To mitigate the risks associated with old receipts, consider adopting these practical steps:

  • Digitise Receipts: Whenever feasible, request digital copies to eliminate the need for physical paper.
  • Regular Clean-Out: Make a habit of reviewing your wallet periodically to discard old receipts.
  • Use Protective Measures: If you must handle receipts, consider washing your hands immediately afterwards.
  • Store Safely: If you need to keep a physical receipt for any reason, store it in a separate compartment away from cash and cards.

Taking Precautions Beyond Receipts

Beyond chemical exposure and bacteria, old receipts can clutter your wallet and make it harder to find essential items quickly. Culling unnecessary paperwork can simplify your life. Moreover, maintaining a tidy wallet increases security, reducing the risk of losing critical items. By keeping only what is necessary, the onus of security rests in one’s hands, making it less appealing for theft. Awareness and action can markedly improve both your daily experience and health.