What documents do I need to provide for a DTV visa as a long-term freelancer with one client?

Your situation is actually quite common for freelancers who have long-term contracts with one main client.

For the DTV visa application in Jakarta, the goal is to prove consistent freelance income and work arrangement, not necessarily multiple clients.

Here’s what I recommend you prepare:

1. Invoices for the past 6–12 months that match the deposits in your bank account.

2. Bank statements showing these payments.

3. A contract or agreement with your client (even if old, it helps prove the ongoing work relationship).

4. Portfolio or work samples — even if they are all from the same client, include a few pieces to show the type of work you do.

5. A letter from the client confirming you work remotely as a freelancer for them, how long you’ve been working together, and that you’re free to work from Thailand.

If all of this is consistent, it should meet the requirement. The key is to show the consulate that you are self-employed / freelance and that your income is independent of a Thai employer.

I also work freelance. I provided a letter from my long term clients explicitly stating that I have authorization to perform services for them in Thailand as a remote worker, as well as examples of my work and a cover letter explaining everything. I was approved in Jakarta in less than 4 business days. I didn't need to provide invoices, just a 6 month bank statement with deposits and transfers highlighted so they could see I had regular income.