I'm wanting to get Thai citizenship but have lost my tax receipt from one year ago. I hear that 3 years of tax receipts are the most important thing.

Any way around this or do I have to wait another 2 years?

Have you contacted the Revenue Department for a copy?

You need more that the just your tax receipts anyway you must have them certified by the revenue department. From Guidelines and documents required for application for Thai citizenship by naturalization "9. Evidence of payment of the applicant’s personal income tax going back 3 years, certified by a Revenue Department official".

A trip to your local revenue department office should get you what you need.

Thank you Sir!

You need more that the just your tax receipts anyway you must have them certified by the revenue department. From Guidelines and documents required for application for Thai citizenship by naturalization "9. Evidence of payment of the applicant’s personal income tax going back 3 years, certified by a Revenue Department official".

A trip to your local revenue department office should get you what you need.