I am on an L1A visa and have been working in the States for the last 2.5 years. I haven't been paying taxes all this time because I was informed by my company that I didn't have to because I wasn't resident in the US. Now I have realised that I was stupid to believe this. I haven't been paying taxes in the US or my home country (Ireland).

Now I'm worried that I'm in a lot of trouble and I don't know what to do about it. Any help much appreciated.

You have some substantial issues to deal with. The best thing would be to file amended returns and get it sorted out asap. Which state are you in? It might be easier to get professional assistance. I find it hard to believe that your company dropped the ball on this one.

TTE has it right when he says yopu have serious issues to resolve.

If you need professional help, contact me at my email address below.

I am on an L1A visa and have been working in the States for the last 2.5 years. I haven't been paying taxes all this time because I was informed by my company that I didn't have to because I wasn't resident in the US. Now I have realised that I was stupid to believe this. I haven't been paying taxes in the US or my home country (Ireland).

Now I'm worried that I'm in a lot of trouble and I don't know what to do about it. Any help much appreciated.
You can correct this problem by having a CPA file your back returns. Just make sure that the CPA you select has substantial experience dealing with multinational tax matters. Otherwise you will get worthless "local advice" that does not take into account the laws of both juridictions that apply to you.
US Immigration - US Visas - US Business Immigration Lawyers - Home (http://www.ortega-medina.com)

I am in California. I'm really concerned. I think the best thing would be to get in touch with an accountant here ASAP and see what the story is. Another problem is that I haven't been paid by my company for over 3 months, so I'm not in a great financial spot as it is - is it likely I will have to pay all the back taxes in one lump sum or could I arrange a payment plan? Thanks for all the advice thus far.

I strongly recommend that you consult with a CPA named Tom Spot regarding your situation to ensure you are in compliance with US tax laws. Tom is a senior partner in the CPA firm of Spott, Lucey & Wall, Inc. His firm has particular expertise working on international business and tax affairs, including handling matters for foreign corporations investing in or owning United States businesses, and foreign citizens living and working in the United States. Mr. Spot's contact information is as follows: Telephone (415) 217-6901; Facsimile: (415) 217-6908; Email: [email protected].
US Immigration - US Visas - US Business Immigration Lawyers - Home (http://www.ortega-medina.com)

Get professional help ASAP!