Login An ISO 9001 audit checklist is a helpful tool that can be used during audits to review your system against ISO 9001:2015 requirements. It helps you make sure all relevant areas are covered and evidence is recorded consistently.
If your organisation is certified to ISO 9001, or preparing to be, audits are a non-negotiable part of the journey. They’re how you prove that your quality management system (QMS) is working in practice, not just documented on paper.
For many businesses, the word audit can feel intimidating — but an ISO 9001 audit shouldn’t be something you dread. When it’s done properly, it’s simply a structured check that confirms your quality processes are working as intended and helping your business deliver consistently for customers.
An ISO 9001 audit is a formal assessment of how well your business meets the requirements of the ISO 9001:2015 Standard. It looks at how your processes are defined, followed, measured, and improved — across everything from leadership and planning to day-to-day operations.
For UK organisations, ISO 9001 audits play an important role in maintaining certification, supporting tender submissions, and demonstrating compliance with customer and regulatory expectations — including obligations under the Consumer Rights Act and Trading Standards requirements. They also provide valuable insight into risks, inefficiencies, and opportunities for improvement — often highlighting issues long before they turn into complaints or costly rework.
Internal ISO 9001 audits should be formal, impartial, objective, and organised in accordance with your internal audit procedures. They should inspect your company’s processes and check that your policies and procedures comply with those documented within your Quality Management System.
ISO 9001 internal auditors find that using a checklist to record evidence helps them to perform consistent audits as well as evaluate the extent to which the process they are looking at aligns with the documentation.
By looking at how things are done in your quality management system and comparing them with how they should be done in line with ISO 9001, you can identify areas for improvement.
You should record these observations and review the audit results at regular management review meetings, which should occur between one and four times a year.
Our consultants are experienced at auditing companies across many sectors. They can use these auditing skills to help you check that your suppliers have the right processes in place to fulfil your needs. In other words, they will check that your company is complying with the standard as well as following the best practice policies and processes for effective quality management.
Internal ISO 9001 audits are performed by the business on their own systems as part of the maintenance of its quality management system. They look at individual systems and processes, looking to confirm that they are still fit for purpose.
For smaller businesses, or those struggling to prepare for an external ISO 9001 Audit, it is possible for a third party to visit and carry out the Internal Audits on their behalf.
An external ISO 9001 audit ensures impartiality, these are performed by a nominated external third party at various intervals throughout the year, before and in addition to the external ISO certification audit that’s performed by your ISO certification provider.
Auditing your quality management system in line with the ISO 9001 Standard offers several benefits for an organisation.
These benefits include:
When you conduct an internal audit of ISO 9001 it helps your business stay compliant with the requirements of the Standard. As ISO 9001 is an internationally recognised Standard for quality management systems it demonstrates a commitment to meeting these standards on a global scale.
During an ISO 9001 audit, a thorough evaluation of an organisation’s processes is conducted. This assessment helps identify areas for improvement, leading to enhanced operational efficiency and streamlined processes. By focusing on continual improvement, businesses can improve upon their operations and increase productivity.
ISO 9001 shows potential suppliers that they can trust you when you have undergone a successful ISO 9001 audit. This factor alone can be advantageous in attracting suppliers and partners.
Find out more about the ISO 9001 Benefits
Citation ISO Certification was founded in 1993, since then we have helped thousands of businesses with their ISO certification and staying compliant which has seen us win numerous service awards. So far, we’ve helped our clients put in place over 30,000 management systems, let us help your business too.