[UPDATED 6 January 2022}
If you are on a low-income worker (employed or self employed) living in Scotland and Test and Protect tell you to self-isolate you may be eligible for a £500 Self Isolation Support Grant, depending on your circumstances.
Further information can be found here.
UPDATE: On 5 January 2022 the First Minister confirmed the allocation of a further £19 million to support close contact services.
The Scottish Government is working with local authorities in Scotland on how this funding can be accessed and will provide more information soon.