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Tax Compliance Services

We provide comprehensive U.S. tax compliance services for individuals, businesses, and trustees. From routine filings to complex cross-border reporting, our team ensures your returns are accurate, timely, and fully compliant with IRS requirements.

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Our services include:

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  • Individual and business tax returns (Forms 1040, 1120, 1065)

  • Trust and estate filings (Forms 1041, 706, 3520, 3520-A)

  • Foreign asset reporting (FBAR, FATCA, Forms 8938, 5471, 8865)

  • Withholding and information returns (Forms 1042, 1042-S, 1099, W-8/W-9)

  • State and local tax filings

  • IRS correspondence and audit support

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We offer clear guidance at every stage of the compliance process—helping you understand your obligations, reduce risk, and stay aligned with evolving tax laws and regulatory requirements.

abstract-city-building-shadows-7.jpg

Tax Compliance Services

We provide comprehensive U.S. tax compliance services for individuals, businesses, and trustees. From routine filings to complex cross-border reporting, our team ensures your returns are accurate, timely, and fully compliant with IRS requirements.

​

Our services include:

​

  • Individual and business tax returns (Forms 1040, 1120, 1065)

  • Trust and estate filings (Forms 1041, 706, 3520, 3520-A)

  • Foreign asset reporting (FBAR, FATCA, Forms 8938, 5471, 8865)

  • Withholding and information returns (Forms 1042, 1042-S, 1099, W-8/W-9)

  • State and local tax filings

  • IRS correspondence and audit support

​

We offer clear guidance at every stage of the compliance process—helping you understand your obligations, reduce risk, and stay aligned with evolving tax laws and regulatory requirements.

abstract-city-building-shadows-7.jpg

Tax Compliance Services

At our firm, we help individuals, businesses, and trusts stay on top of their tax obligations. We keep it simple, clear, and personal — because that's how we like to be treated too.

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For Individuals

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  • We prepare and file your federal, state, and local tax returns.

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  • We help you plan ahead to avoid surprises at tax time and handle any foreign accounts or special reporting needs you may have.

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For Trusts and Estates

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  • We help trust companies meet U.S. foreign trust reporting obligations by preparing DNI calculations, Forms 3520, 3520-A, 5471, and related filings, ensuring full compliance with IRS requirements.

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  • We help with estate and gift tax filings.

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For Businesses

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  • We prepare and file tax returns for corporations, partnerships, LLCs, and S Corps.

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  • We manage flow-through tax filings and help partners and shareholders understand their K-1s.

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CONTACT

Direct +41449190782

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ADDRESS

Gössikon 23

CH-8126 Zumikon

SOCIAL

CONTACT

Direct +41449190782

​

ADDRESS

Gössikon 23

CH-8126 Zumikon

SOCIAL

CONTACT

Direct +41449190782

​info@fideli.ch

​

Office Address

Fideli GmbH
Haus der Immobilien
Zollikerstrasse 65
8702 Zollikon

Registered Address

Gössikon 23

​

SOCIAL

CONTACT

Direct +41449190782

​info@fideli.ch

​

Office Address

Fideli GmbH
Haus der Immobilien
Zollikerstrasse 65
8702 Zollikon

Registered Address

Gössikon 23

CH-8126 Zumikon

SOCIAL

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