Unlike full-service providers, we keep things simple — focusing only on what you need to file correctly and on time.
Essential tax filing support tailored for expats with straightforward financial situations — so you stay compliant without the complexity.
/ OUR APPROACH
We take the guesswork out of Thai tax regulations. Our team ensures your filings are accurate, complete, and always on time.
Whether you have salary income, rental earnings, or capital gains, we simplify the process and adapt it to your situation.
From document collection to electronic submission with the Revenue Department, we handle every step — so you can focus on living and working in Thailand.
/ TESTIMONIALS
CEO - GrabJobs Pte Ltd
"Partnering with Aster Lion has been a game-changer for our expansion into Thailand. Their expertise in local employment laws and regulations ensured we remained compliant - and saved us so much time to focus on our core business."
Managing Director - D.E. Consulting
"We have worked with Aster Lion for several years. They are professional, efficient and friendly. Tailor made solutions to our needs is the best part of their services. Their consultants are very experienced and hard working. We are impressed of their focus and dedication in what they do!“
Business Development Manager
"Stress Free Management! Aster Lion have been supporting me in business now for 2 years and had set the bar very high for their service back in 2020. At every step of the way, they have maintained this high level of service, supported by strong local knowledge and experience."
Regional Sales Manager - Asia
"What seemed to be hard and slow, becomes easy and fast. Since the first communication with Aster Lion, it has been great service and easy steps. The team is extremely professional and always there to solve your questions. The whole process of market entry in Thailand might seem like a big deal, but Aster Lion team walk you through it like pros."
Senior Well Test Engineer
“Peace of mind to get on with my work, worry free! When you are a professional working remotely from Thailand you need a reliable and efficient agency for your HR related matters. Aster Lion have done exactly that over the last 2 years. Thoroughly recommendable!”
Offshore Installation Manager
“Professional, Reliable & Timely. We needed a reliable partner to manage our payroll efficiently and compliantly. Aster Lion has been exceptional. Their team handled everything with professionalism and expertise, ensuring timely and accurate payroll processing every month."
/ QUESTIONS & ANSWERS
Absolutely. We support expats with multiple or additional income streams, including capital gains, rental income, and more — ensuring every detail is accounted for.
Typically, you’ll need your passport, work permit or visa copy, Thai tax ID number (if available), proof of income sources (e.g. salary statements, bank statements, investment summaries), and information on any realized gains claim deductions and allowances.
Yes. We manage the full submission process — including electronic filing — and offer support in case any follow-up questions arise and tax refunds(if applicable).
Just let us know! We provide ongoing support for updates like relocation, additional income sources, or changes in residency status — notifying you and adjusting filings as needed.
With complete documentation, our efficient process typically completes in 1–2 weeks. We help accelerate your filing with precise guidance and proactive follow-up.