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US tax preparation for Americans in Finland

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Americans in Finland
Simple Tax Guide for Americans in Finland
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Simple Tax Guide for Americans in Finland

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At TFX, we have been preparing business tax returns for over 25 years. We never hire junior staff. No outsourcing, no middlemen: you’ll be working directly with an experienced (our average age is 42) CPA or EA who will handle your case from beginning to end.

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Articles & tax guides

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ECI tax: what effectively connected income means and when to use Form W-8ECI

Effectively connected income (ECI) is income the IRS treats as directly tied to a trade or business conducted in the United States. Unlike passive US-source income, ECI is taxed on a net basis – meaning deductions are allow...

Form 1065 and Schedule K-1: instructions, codes, due dates, and filing basics

Form 1065 is the annual informational return a partnership files with the IRS to report its total income, deductions, gains, losses, and credits. Schedule K-1 (Form 1065) is the partner-level stateme...

Dual citizenship guide 2026: Countries that allow it, US rules & how to get it

Can a US citizen have dual citizenship? Yes, Americans can hold a second ...

Behind on US taxes and contacted by the IRS: what to do

What to do if behind on taxes If the IRS already contacted you, ...

How to file back taxes as an American expat (avoid penalties & delays)

US expats can usually catch up on back taxes by identifying the missing years, gathering records, choosing the correct compliance route, and filing the required returns before addressing any balance due. In many expat ca...

What to do if you’ve never filed taxes? Guide for US citizens, expats, and Green Card holders

If you have never filed taxes before, do not panic — many people first need to confirm whether they were actually required to file, then file only the years that apply. The IRS decides who must file based on clear ...

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