When did you obtain ILR and on what basis?
Thank you for your question and patience, I’m Tom and I’ll try to help you.
You can apply for naturalisation as a UK citizen provided that you meet the criteria on the following page:
Please note I assume you are not married to a UK citizen, but let me know if you are.
If you meet the criteria on the above link then you can naturalise. However, it is expensive (£1236) and it can take up to 6 months to determine (sometimes over).
I was going to post the link that you posted. If you are not minded to naturalise then you would have to apply to transfer to a NTL and receive a BRP in replacement of your current stamp endorsed in your passport.
If you submit your application to naturalise to the home office then they would simply determine the application, they would not write to you in the meantime for the purpose of confirming to your employer unfortunately.
I would decide which is preferable to you and then check with your employer, but it’s likely they’ll prefer for you to apply for a BRP rather than wait the 6 months to naturalise.
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The home office does not confirm employments rights after you've submitted an application (whether for NTL BRP or naturalisation) so I would not rely on them doing this.
Your employer could attempt to contact the home office after you've submtted the application to ask if they are willing to confirm your right to work but I would not be confident on the home office actually confirming it (they are there principally to determinate applications rather then consult with employers)
This is why I would check with your employer on what they will accept.
The last time I checked there was not a facility on the ECS if an NTL was in process, but it appears there is now.There does not appear to be an option to check for naturalisation and so you would be relying on the caseworker being both willing to speak to your employer AND actually being willing to confirm your right to work, which is an undesirable position to be in.
I would apply for NTL/BRP after confirming with your employer
You would have to submit both application separately. First, the BRP, then naturalisation once documents have been returned. Different departments I'm afraid.
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