A source of funds declaration form is completed by matching every dollar in your transaction to a specific documented origin, writing a short narrative that ties those sources together, signing the certification, and submitting the form through the requesting institution’s portal with every supporting document attached. The form itself is a cover sheet; the work is in the paperwork behind it.
What the Form Asks For
There is no single government-issued version. Each bank, lender, title company, or law firm uses its own layout, but the sections are nearly always the same.
- Personal identification: your full legal name, date of birth, address, phone number, and a government-issued ID number (driver’s license, passport, or taxpayer identification number).
- Transaction details: the dollar amount, the currency, and whether the money is moving as a single lump sum or as multiple related transfers.
- Source category: a checklist or dropdown for how you got the money. Typical categories include employment income, business profits, sale of property, inheritance or trust distribution, investment returns, gifts, and loan proceeds.
- Narrative explanation: a free-text section where you describe the money trail in your own words and connect it to the attached documents.
- Signature and date: your certification that the information is true and complete.
Some forms add sections for third-party representatives acting on your behalf, and for institutional clients like trusts or corporations. If a legal entity is involved, the form may ask for the entity’s registration number, country of incorporation, and the name of the authorized representative.
Documents to Gather Before You Write
The dollar amount on the form has to reconcile against documents that independently prove where the money came from. What you need depends on the source.
Employment Income
For salaried or hourly workers, institutions typically want two to three months of bank statements showing regular payroll deposits, plus recent pay stubs. Tax returns or a W-2 from the most recent year confirm your income level supports the amount you’re claiming.
Self-Employment or Business Profits
Self-employed filers face more documentation because income is less predictable. Expect to provide two to three years of personal and business tax returns (including Schedule C or your business entity’s return), profit-and-loss statements, and business bank statements showing the transfer from the business account to your personal account. The reviewer wants a clear path from revenue earned to dollars available.
Sale of Property or Assets
If the funds came from selling a home, car, investment portfolio, or other asset, provide the closing disclosure or settlement statement for real estate, or the sale contract and payment receipt for other assets. The document should show the net proceeds after any outstanding liens or costs were paid.
Inheritance or Trust Distribution
A grant of probate, a letter from the executor, or a trust distribution statement works as proof. It should identify you as a beneficiary and state the amount distributed. If the money was deposited some time ago, bank statements showing the deposit tie the inheritance to your current balance.
Gifts
Gift funds, especially for mortgage down payments, require a signed gift letter. Fannie Mae’s guidelines, which most conventional lenders follow, require the letter to state the dollar amount, confirm no repayment is expected, and include the donor’s name, address, phone number, and relationship to you. The lender also needs proof the donor had the money and transferred it: a copy of the donor’s bank statement or withdrawal receipt alongside your deposit slip, or a settlement statement showing receipt of the gift at closing.1Fannie Mae. Personal Gifts
Savings
For money accumulated gradually, provide bank statements covering several months (60 days is a common minimum for mortgage transactions) that show steady growth of the balance. Unexplained large deposits inside that window are the single fastest way to trigger a follow-up. If a lump sum landed in your account from a bonus or insurance payout, have documentation for it ready before you submit.
Digital Assets
If you sold cryptocurrency or other digital assets and are moving the proceeds into a traditional transaction, expect to provide exchange account statements showing your name, wallet address, and transaction history. You may also need records of how you originally acquired the assets, whether through purchase, mining, staking, or lending income.
Starting January 1, 2026, brokers must report both gross proceeds and cost basis for covered digital asset transactions to the IRS on Form 1099-DA.2Internal Revenue Service. Instructions for Form 1099-DA (2026) That form can double as supporting documentation, since it independently verifies sale amounts and holding periods. For real estate closings with digital asset payments on or after that same date, real estate professionals treated as brokers must also report the fair market value of digital assets paid by buyers and received by sellers.3Internal Revenue Service. Final Regulations and Related IRS Guidance for Reporting by Brokers on Sales and Exchanges of Digital Assets
Writing the Narrative
Before you start writing, lay out every supporting document and total it against the transaction amount. Every dollar should trace to a specific source. If the totals don’t match, fix the gap before you touch the form.
In the narrative, be direct and specific. Instead of “personal savings,” write “savings accumulated over approximately three years in my Chase checking account ending in 4521, as shown in the attached statements.” If the money comes from more than one source, break them out individually with the dollar amount for each. For example: “$30,000 from the sale of my prior home at 123 Oak Street, closed on March 15, 2026 (settlement statement attached), and $20,000 from personal savings in my Bank of America account ending in 7890 (statements for January through March 2026 attached).”
Mistakes That Trigger Follow-Ups
- Rounding or estimating amounts. The dollar figures on your declaration have to match the supporting documents exactly. A $200 discrepancy between your stated amount and your bank statement balance can trigger a follow-up.
- Submitting bank statements as the only proof. A bank statement shows that money arrived. It doesn’t explain where it came from. Compliance officers look for the underlying document, whether a pay stub, closing disclosure, or gift letter, that explains the deposit.
- Leaving gaps in your statement history. If you provide January and March but skip February, the reviewer will ask for the missing month. Submit continuous, unbroken records.
- Mixing transaction funds with unrelated balances. If your account holds $80,000 but only $50,000 is for the transaction, explain what the remaining $30,000 is and why it isn’t part of the declaration. Reviewers will question any balance that doesn’t tie to the stated purpose.
Provide clear, legible copies of every record. Scanned documents should be high-resolution enough that account numbers and dates read easily.
How to Submit the Form
Most banks and law firms accept submissions through encrypted digital portals. If you’re submitting in person or by mail, use certified mail or request a receipt so you have proof of delivery if a dispute arises later. Attach every document referenced in your narrative, organized in the same order you listed the sources.
A compliance officer or mortgage underwriter reviews the package. Turnaround times vary. A straightforward wage-earner buying a home might clear review in a few business days. A self-employed buyer with funds from multiple sources, investment accounts, and a recent large gift could wait several weeks. Responding quickly to any follow-up request is the single best way to keep the timeline from stretching further.
What Happens After You Submit
If the compliance officer finds everything in order, the transaction proceeds and the institution stores your declaration in its records. If something doesn’t add up, whether an unexplained deposit, a missing document, or a narrative that doesn’t match the bank statements, the officer sends a follow-up request. These requests are routine and don’t mean you’re under suspicion. Answer them with the specific document or explanation asked for.
Providing false information carries serious consequences. Under federal law, knowingly making a materially false statement in a matter within the jurisdiction of a federal agency is punishable by up to five years in prison, or up to eight years if the offense involves terrorism.4Office of the Law Revision Counsel. 18 USC 1001 – Statements or Entries Generally The statute requires that the false statement be knowing and willful, so honest mistakes don’t trigger criminal liability, but the line between a careless omission and a deliberate one isn’t a line you want a prosecutor drawing for you.
How Long to Keep Your Copy
Banks are required to retain most Bank Secrecy Act records, including supporting documentation, for at least five years.5FFIEC BSA/AML InfoBase. Appendix P – BSA Record Retention Requirements Your own retention should match or exceed that. Keep copies of your signed declaration, every supporting document you submitted, and any correspondence with the institution. These records protect you during tax audits, future real estate transactions, or any situation where you need to show the legitimate origin of funds you moved years earlier. Digital copies work fine as long as they’re backed up and accessible.