Check list of documentation. Form1040

This is what we need to start preparing your US Individual Tax Return

This is the basic information we need to start preparing your US Tax Return.

Please be sure that you have upload all the information listed in this page. Upload your files.

In case you have received any other income not listed below, or your fiscal situation is more complicated than normal, please contact us. Please, if we already have the documentation for this list from previous years, please do not upload it again. If you are a delinquent filer, please, click HERE.

  1. Complete name, date of birth and SSN of taxpayer, spouse, and children or dependents. Pdf copy of the US passport and the SSN card.
  2. Current address where you live, and country where you have spent more than 183 days during last year, so you were fiscal resident of that country.
  3. ID number  and Portuguese identification card of taxpayer and spouse
  4. Last year’s Portuguese Tax Returned, if you filed it, or from the country where you were fiscal resident, and this year’s Tax Return if filed,and if you were fiscal resident of Portugal during the year.
  5. Last year’s Form 1040 US Individual Tax Return, and State tax return if any.
  6. Employment income:
    1. Certificate form employer in Portugal
    2. W2, indicating if the work was done in Portugal or US.
    3. Any other employment income: i.e. unemployment compensation.
  7. Self-employment income:
    1. Type of economic activity. Income and expenses.
  8. Interests, Dividends and Capital Gains:
    1. Certificate of income from your bank in Portugal. Fiscal data document issue by the bank.
    2. 1099-INT, 1099-DIV and 1099-B from US financial institution (proceeds and costs)
  9. Property income from rents:
    1. Complete address of any property owned (Portugal & abroad) and % of ownership.
    2. Date of acquisition and price of acquisition. Date of the rental agreement.
    3. Income and expenses from the rent.
  10. Pensions and Social Security Benefits:
    1. Certificate of withholdings from the Portuguese SS.
    2. 1099-R from all annuities and distributions from your pension plans
    3. 199SSA from the Social Security benefits from the US
  1. Stimulus checks (2020 and 2021 Tax Returns): 

Please provide amount received in 2020 for the EIP1 and the EIP2 (for eligible US citizens filing Single would be $1,200 and $600). The last check of $1,400 would be reported/claimed next year 2021). The stimulus check are Tax exempts in the US but need to be reported to claim them if you have not received them.

  1. If you own more that 10% or are the administrator of a Portuguese corporation

Please upload the Coporation Tax return from the last two fiscal years.

  1. If you have Mutual Funds (Fundos de inversão) considered PFICs issued in Portugal or any country outside the U.S.

We need the list of all the transactions of the PFIC (date, type of transaction, participations, and value) since it was opened.

  1. Please check if you need to file the FinCEN 114 (Foreign Bank Account Report – FBAR)

If you need us to file it for you, please let us know and if you file it by yourself, please, upload a copy with the rest of the docuemntation.



We would be very pleased to hear from you. Call us or send a message using the contact form. We will answer you promptly.

+351 211 380 833

KNOW2GROW R. Dr. Augusto José da Cunha, Loja 3C 1495-240 Algés. Portugal.

Sitio do Alportel 32A – Sao Bras de Alportel – Algarve 8150-014, Portugal.

+34 915 194 392

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El Peñayu, 15 – 33534 Piloña, Asturias, Spain

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Monday – Friday: 11m–6pm, Saturday & Sunday: Closed

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