Immigrationboards.com

Due to parents being from all over and previous naturalisations, I currently have four citizenships and am applying for British, which would be my fifth.

I only listed the relevant one that allows for my UK residence on the form, but the NCS asked me to list all of them there.

Will this cause any issues/delays at the home office, or will they only really care about how I meet the requirements using the nationality that I am here under?

Besides British I hold 2 more citizenships and as far as I know there is no limit in how many you are allowed to have.

Different countries have different rules. Search "Multiple citizenship" and click on the Wikipedia link that comes up.
That will give you an idea, as well as examples of how different countries regard multiple citizenship.

Julian11 wrote:Due to parents being from all over and previous naturalisations, I currently have four citizenships and am applying for British, which would be my fifth.

I only listed the relevant one that allows for my UK residence on the form, but the NCS asked me to list all of them there.

Will this cause any issues/delays at the home office, or will they only really care about how I meet the requirements using the nationality that I am here under?

Did u list all of them .