How i should register myself if am self employed travel agent?

I am self employed travel agent used to have a small agency,now i need to work from home because of low income,where should i report that i am working from home? Thanks.How i should register myself if am self employed travel agent?If you are in the UK and have registered with HMRC they are not interested where you are working from.How i should register myself if am self employed travel agent?Sorry but in many years of air travel, I have never heard of a legitimate IATA-registered travel agent working from home

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