The Equality Act 2010 makes unlawful direct or indirect discrimination, harassment or victimisation due to religion and any religious or philosophical belief or the lack thereof.
What constitutes a philosophical belief has been tested by the courts: a 2015 Employment Appeal Tribunal case found that ‘philosophical beliefs’ included political beliefs.
(NB: political beliefs are explicitly protected by legislation in Northern Ireland, but not in England, Scotland and Wales.)
An employer is not legally required by the act to allow time off or facilities for religious observance, but it is good practice for them to do so.
Do I have to disclose my religion or beliefs to employers?
No, you are not legally required to; it entirely depends on what you feel comfortable with.
If your involvement in activities related to your spiritual or religious beliefs has developed essential skills and competencies, we would encourage you to add these to your CV as evidence of your capabilities – but this is a personal choice.