Disclosure of National Insurance number

[cadaverama]

The HMRC guidance on the Gov.UK website states:

"Keep your National Insurance number safe. To prevent identity fraud, do not share your National Insurance number with anyone. These organisations may need to know what your number is: HM Revenue and Customs ( HMRC ) your employer." 

[papso22]

Well given that the law requires ebay to include the NI number of individuals with the sales data they have to provide to HMRC, ebay must be on the list of people HMRC expects you to give it to.

If you look further at .gov.uk you will see why this is.

[jckl1957]

The information/quote you supply is outdated.

This is from the gov.uk website - see the link.  Ebay have to ask for your NI Number to pass to HMRC along with details of your online sales after you pass certain thresholds.

Information you must give

Digital platform operators will ask you for certain details.

If you’re an individual seller, they’ll ask for your:

• full name
• address where you normally live
• date of birth
• tax identification number (National Insurance number if you live in the UK)

https://www.gov.uk/guidance/selling-goods-or-services-on-a-digital-platform

[cadaverama]

The information I quoted is still on the Gov.Uk website. I searched on
Google and that's what I got back. Given the recent hacks of retailers I
don't want hackers getting fundamental personal data like that. You
mentors might be comfortable with it, but I am not.

[cadaverama]

If eBay provides my name and address to HMRC, they can deduce my NI
number. It is not safe supplying such a fundamental piece of personal data
to a commercial organisation such as eBay. And I believe a requirement to
pass my NI number to a third party is in contravention of my right to
privacy under the European Convention On Human Rights.