Withheld tax is a deposit, not your final bill
Many countries require clients to withhold a flat percentage from freelance payments before you ever see the money. That withheld amount is a prepayment against your eventual tax liability, not the final amount you owe -- which is exactly why filing an annual return, rather than skipping it because tax was 'already taken out,' is what actually gets you a refund if you're owed one.
This is general information, not tax advice
Withholding rates, deduction rules, filing deadlines, and refund processing times vary substantially from country to country and change over time. Use this as a general roadmap for the process, and confirm the specific rules, forms, and deadlines that apply to you with your national tax authority or a qualified tax professional.
Frequently Asked Questions
What if I worked with several different clients during the year?
You generally need to gather withholding records from every client who paid you, not just your main one, since all your freelance income for the year typically has to be combined and reported together.
How long does it take to actually receive the refund after filing?
Processing times vary by country and by how straightforward your filing is, but refunds are usually paid out within a defined review period after your return is accepted, and you can typically check progress through your tax portal in the meantime.