How to prove your investments to a bank

Solid financial assets strengthen your profile with a lender even if you do not use them in the purchase: they show saving capacity, solvency and a cushion if your income drops. But lenders only count what they can verify with documents. This guide explains what to provide, how the lender reads it and how to present it so it really counts.

  • Lenders value assets as solvency and reserves, not as monthly income.
  • Provide position statements valued at a recent date, statements showing history and your tax return.
  • If you use investments for the deposit, the lender will ask you to document the source of funds.
  • Declared investment income (dividends, interest, rents) can add to your income, usually with a haircut.
  • If you do not want to sell, pledging turns those assets into collateral.

What the lender looks at

A mortgage decision rests on two pillars: ability to pay (income and debts) and solvency (what you have if something goes wrong). Financial assets weigh on the second:

  • They reduce perceived risk: you could keep paying even if you lost income for a while.
  • They show a saving habit and stability.
  • They can serve as extra collateral or to prepay if needed.

What they usually do not do is replace insufficient income: a €100,000 portfolio does not make a payment of 50% of your salary affordable.

Documents that prove your investments

  • A position or balance statement from your bank or broker, valuing each product at a recent date.
  • Statements from recent months (or years) showing the assets are not new.
  • Your tax return: declared dividends, interest and gains confirm that the investments exist and produce income.
  • The annual tax information issued by financial institutions with income and withholdings.
  • For assets held abroad, the official statements and any foreign asset reports required in your country strengthen traceability.

Source of funds

If you use money from your investments for the deposit, lenders (and, in countries like Spain, notaries) must check where it comes from under anti-money laundering rules. Make it easy:

  • Sell or transfer in good time and keep the proof of the sale and the credit to your account.
  • Avoid cash movements and transfers through third-party accounts.
  • If the money is a family gift, document it (and declare it where required).

A clean trail from brokerage account to current account avoids delays at signing.

Investment income as income

Declared dividends, interest or rents can be added to your income to calculate borrowing capacity. Lenders usually:

  • Use the average of the last two tax returns.
  • Apply a haircut, because this income can vary.
  • Exclude one-off gains from sales, which are not recurring.

The more stable and established the income, the more likely it is to count.

How to prepare a convincing file

  1. A one-page summary with income, debts, financial and property assets and the purchase you are planning.
  2. Position statements from all institutions, at the same date.
  3. The last two tax returns.
  4. Statements showing recurring savings.
  5. The plan: price, deposit, where it comes from and the cushion left afterwards.

An organised file changes the conversation: the lender evaluates a solvent, documented profile, not an application with missing papers.

If you do not want to sell: pledge

When the portfolio has large unrealised gains or you do not want to sell, you can offer it as collateral instead. See borrowing against your investments.

Frequently asked questions

Do banks count my investments as income?

The assets themselves are not income, but they improve your solvency. The income they generate and you declare can be added, usually with a haircut.

Which document proves my investment funds?

A position statement from the fund manager or distributor with a recent valuation, plus statements showing how long you have held them.

Why do they ask where my deposit comes from?

Because anti-money laundering rules require lenders to identify the source of funds. Sale confirmations and transfer records solve it.

Are foreign broker statements accepted?

Yes, although some lenders ask for extra documentation. Provide official statements and any foreign asset reports required in your country.