Income taxes – Need help. Thank you!

Hi everyone,

Thank you in advance.

I am currently dealing with a tax issue that has been causing me a lot (lot) of stress, and I would greatly appreciate any advice you can offer. Here are the details of my situation:

I am on a basic 1 year visa (Engineer/Specialist in Humanities/International Services), which means I have a company that sponsors me. Although I am not working much for this company, they are sponsoring me for three years. I pay taxes on my income from this company (automatic deducted), but it is not a significant amount. Last year, I did more freelance work than work for my sponsoring company.

The issue is that I have not yet paid taxes on my freelance income for the year 2023, and I need to sort this out before I renew my visa at the end of December. In previous years, I only paid taxes that were automatically deducted from my salary by the sponsoring company. (means I'm a bit lost right now)

Additionally, I do not have any slips or documents for my freelance work, only the invoices I issued.

Any guidance on how to handle this situation would be incredibly helpful. Thank you in advance for your assistance.