What are the ins/outs of writing-off part of one's rent for working at home?
Tax regulations vary from country to country - some permitting more deductions, some less - but here are a few guidelines. As regards the home-office: As regards the deductions: Think of it like this: in order to have space for a home-office you needed a bigger home.  That leads to increased rates, heating, insurance and so on.  Many tax regulators recognise that these are genuine expenses.  The alternative is to rent a separate office and incur greater expenses, leading to increased deductions and less overall tax paid (which won't finance the deficit). The usual test for deductions is: was the expense legitimately incurred in the pursuit of revenue?  The flexibility permitted will vary by tax authority but you can frequently deduct more than you expected.
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### Instruction:
What are the ins/outs of writing-off part of one's rent for working at home?

### Response:
Tax regulations vary from country to country - some permitting more deductions, some less - but here are a few guidelines. As regards the home-office: As regards the deductions: Think of it like this: in order to have space for a home-office you needed a bigger home.  That leads to increased rates, heating, insurance and so on.  Many tax regulators recognise that these are genuine expenses.  The alternative is to rent a separate office and incur greater expenses, leading to increased deductions and less overall tax paid (which won't finance the deficit). The usual test for deductions is: was the expense legitimately incurred in the pursuit of revenue?  The flexibility permitted will vary by tax authority but you can frequently deduct more than you expected.