## Separate the money first
Use a dedicated account or clear labels. Platform fees and refunds are not “net profit.” Rough Side-hustle quarterly tax estimate calculator and Self-employment tax beat a surprise bill. Rules in Ukraine vary — educational only.
## VAT/GST thresholds
Some hustles hit registration thresholds earlier than you think. Peek at VAT GST and Invoice with tax before you scale ads. When unsure, official guidance for Ukraine beats a blog post.
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Note: Educational content from Calcly Ukraine. Official sources (STS educational PIT 18% 2026.) and licensed professionals take priority in Ukraine.