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Source of funds: how to prove your income

Here's everything you need to know about which documents to submit to verify your source of income.

Updated today


About this article

As a regulated financial platform operating across multiple countries, ARQ is required to verify the origin of customers’ funds — this is a standard obligation for any financial service, no different from other banks and financial institutions. These checks help ensure that all activity on the platform is legitimate and consistent with each user's declared financial profile. ARQ is committed to making sure the platform is safe and reliable for everyone — and verifying the origin of funds is a key part of that.

If your account is selected for a review, you'll receive a notification in the ARQ app and an email. You will be asked to share documents showing where your money comes from — such as salary, business income, inheritance or other sources.

This article will guide you through what is an acceptable document to prove your income.


General tips

All submitted documents need to:

  • Contain complete information (including full name, issuing entity, date, amounts, signatures, and other relevant details), accurately reflect your current financial activity and be consistent with your declared source of income

  • Relate to you personally and mention your legal name. Documents issued in the name of a relative will only be accepted if accompanied by valid documentation in your own name, or by sufficient proof of relationship, such as a marriage or birth certificate.

Do’s:

  • Check that all documents are clear and fully readable — blurry or partially visible documents will not be accepted

  • Make sure documents are either PDFs or a standard image formats (JPG, PNG)

  • Check all key details such as names, amounts, dates are fully visible and not cropped out

  • Attach all required documents together in one submission - this will help our team to review your submission faster.

Don'ts:

  • Do not compress files (e.g., ZIP files) or apply password protection

  • Do not share screenshots of your account balances in other financial applications

  • Do not share unrelated photographs, even if you think they can prove your income source

  • Do not share drafts or provisional documents

  • Do not share handwritten or self-declared documents.

What documents are valid to prove my income?

Document requirements vary based on your type of income. All documents must be complete and unredacted, they must provide clear evidence of your personal income within a reasonably recent period of time.

The following income types and corresponding documents are recognised at ARQ. Each document type has an accepted time period, shown below.

Salary

General

  • Payslips or payroll statements — last 12 months

  • Employment contracts with employee and employer details, salary amount, and signatures — last 7 years

  • Employment certificate, when accompanied by a bank statement showing consistent salary inflows — last 7 years

  • Invoices or service agreements, when accompanied by a bank statement — last 2 years

  • Tax returns filed with the relevant local authority — last 2 years

Country notes:

🇦🇷 Argentina

  • ARCA / Monotributo tax return — accepted

  • ARCA invoices accompanied by a bank statement — accepted

  • Certificación de Ingresos (CPA-certified) with CPCE seal, accompanied by a bank statement — accepted

🇲🇽 Mexico

  • SAT Declaración Anual — accepted

  • Constancia de Situación Fiscal — not accepted on its own, must be accompanied by proof of income

🇧🇷 Brazil

  • IRPF accepted. If your income fields appear empty or incomplete, please submit additional supporting documents

🇨🇴 Colombia

  • DIAN tax return — accepted

  • No DIAN return? Payslips or employment contracts work just as well

🇺🇸 United States

  • W-2 if you are employed

  • 1099-NEC or 1099-MISC if you are a freelancer or contractor

Business Income

  • Business registration documents showing you as owner, director, or shareholder — no time limit

  • Financial statements (tax returns, balance sheets, or income statements) confirming business income — last 2 years

  • Both documents must be submitted together

Pension

  • Pension statement with beneficiary details and payment amount — last 5 years

  • Pension statement without a payment amount, when accompanied by a bank statement showing consistent pension inflows

Sale of Assets or Property

  • Notarized deed of sale showing your name as seller and the sale amount — last 5 years

  • Brokerage or investment statements showing transaction flows — last 2 years

  • Brokerage or investment statements showing balance only, when accompanied by a bank statement — last 2 years

  • Sale contract, when accompanied by a bank statement — last 7 years

Loan

  • Loan agreement or promissory note, when accompanied by a bank statement — last 2 years

Inheritance, Probate or Donations deeds

  • Court, notary, or official registry documentation clearly showing your name as beneficiary and the corresponding amount or asset value — last 5 years

  • If no amount is shown, the document may still be accepted when accompanied by a bank statement

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