Signatory on a Parent's Account: SDOP

Signature or other authority over a parent's overseas account is reportable on an FBAR even though the money is not yours and produces no US income for you. If unfiled FBARs are your only failure, the delinquent FBAR route may fit better than the Streamlined Domestic Offshore Procedure — the two are not interchangeable, and choosing wrongly costs money.

This is one of the most misdiagnosed situations in offshore compliance. An ageing parent abroad adds an adult child to the bank mandate so somebody can pay bills if they fall ill. Nobody thinks of it as the child's account, because it is not. Then a tax preparer asks the FBAR question, the honest answer is yes, and a problem appears where there was no money and no income.

Our main guide to the Streamlined Domestic Offshore Procedure sets out the eligibility gates in full. This article deals with the narrower question those gates raise for a signatory: whether streamlined filing is even the programme you need.

Key takeaways

Signature authority is an FBAR trigger on its own. The FBAR rules reach a financial interest in, or signature or other authority over, foreign financial accounts once the aggregate exceeds $10,000 at any time in the year.
Signature authority is not a Form 8938 trigger. The IRS's own comparison table says so expressly, unless you otherwise have an interest in the account.
It usually creates no US income for you. The interest belongs to the account owner. Nothing goes on your Form 1040 because of the mandate alone.
That is why SDOP may not be the right programme. The domestic streamlined procedures are built around a failure to report gross income from a foreign financial asset. A pure signatory with no income failure may not meet that condition.
The delinquent FBAR submission procedures exist for exactly this gap and do not carry a miscellaneous offshore penalty — but they have their own conditions, including that the IRS has not contacted you.
Check what the mandate really is. Many arrangements described in a family as "just signing" turn out to be joint ownership, which changes everything.

What counts as signature authority?

The IRS's comparison of Form 8938 and FBAR requirements puts it plainly: you have signature authority where you have authority to control the disposition of the assets in the account by direct communication with the financial institution maintaining it. In ordinary language, the bank will act on your instruction.

That is a lower bar than most families assume. You do not need a card, a login or a balance of your own. You do not need to have ever moved a penny. The authority is enough, and it is tested year by year — it exists in every year the mandate was in place, not only in the years you used it.

It is also separate from financial interest, which is the other FBAR trigger. Financial interest covers being the owner of record or holder of legal title, having an agent or nominee who is, or holding a sufficient interest in an entity that is. A signatory on a parent's account typically has the authority without the interest.

Does a parent's account create US tax for you?

Almost always, no. Interest credited to your mother's savings account is your mother's income. Being named on the mandate does not transfer it to you, and it does not go on your return.

There are two qualifications worth keeping in view. If money was gifted to you out of the account, the gift itself is generally not US income, but a large gift from a foreign person can carry its own information-return obligation, which is a reporting matter rather than a tax one. And if what you actually hold is an ownership share rather than a mandate — see below — then a proportion of the income may genuinely be yours.

Is SDOP even the right programme here?

This is the question that decides the whole engagement, and it turns on a single clause in the IRS's description of the streamlined domestic offshore procedures.

To use the domestic track, a taxpayer must have failed to report gross income from a foreign financial asset and pay tax as required by US law, and may also have failed to file an FBAR or one or more international information returns in respect of that asset. The income failure is written as a requirement. The FBAR failure is written as something that may accompany it.

So consider a taxpayer whose only lapse is unfiled FBARs for a parent's account over which they held signature authority, with no unreported income anywhere, no other foreign assets and complete, correct returns. On the face of the IRS's own eligibility wording, that person does not present the failure SDOP is built to resolve. Filing a domestic streamlined package anyway would mean certifying to a programme whose central condition is not met — and paying a miscellaneous offshore penalty that the alternative route does not impose.

The alternative is the delinquent FBAR submission procedures. The IRS directs taxpayers who have not been contacted about a late FBAR, and who are not under civil or criminal investigation, to file the late FBARs as soon as possible through the FinCEN BSA E-Filing System, selecting the appropriate reason for filing late and explaining it on the cover page. Our missed FBAR guide deals with that route in detail.

⚠ This is a route decision, not a form-filling decision. Which programme fits is driven by the full picture of your foreign assets and income, not by the parent's account alone, and it is reviewed and signed off by our licensed professional before any package is assembled.

When is it more than signature authority?

Family arrangements are rarely as tidy as the labels put on them. Before concluding that you are a pure signatory, test these:

Joint account versus mandate. In many countries the paperwork that adds an adult child makes them a joint holder with full legal title, not an authorised signatory. That is a financial interest, and it can bring both income and Form 8938 into play.
Beneficial ownership in substance. If funds were transferred in with the understanding they are really yours, or you treat the account as your own, substance may outrank the form on the mandate.
Survivorship. An account that passed to you on a parent's death changes character from that date. Our guide to an inherited foreign account that was never reported covers what happens next.
Trusts and nominee holdings. Where the account sits under a foreign trust or a nominee arrangement, a different and heavier set of information returns can apply.
Other accounts of your own. Signature authority is often the thing that surfaces first, and then a dormant savings account in your own name emerges behind it. That changes the analysis completely.

Does a signatory account go into the SDOP penalty base?

If a streamlined submission does turn out to be the right route — because there are other assets or income failures in the picture — then the treatment of the parent's account inside the penalty computation becomes a live issue, and it is a genuinely contested one.

The IRS describes the miscellaneous offshore penalty as a percentage of the highest aggregate value of the taxpayer's foreign financial assets that are subject to the penalty, and says an asset is subject to it in a year within the FBAR look-back if it should have been, but was not, reported on an FBAR for that year. Read one way, the possessive matters: a parent's account is not the taxpayer's asset, however reportable it was. Read another way, the FBAR test does the work and reportability is enough.

We do not print the penalty percentage on this page, and we do not resolve this question in an article. It is settled on the facts, against the IRS's published terms as they stand on the day the package is prepared, by the licensed reviewer who signs off the file. What you should take away is that it is a question at all — and that a preparer who sweeps a parent's balance into the base without pausing may be costing you a great deal.

Does Form 8938 apply to signature authority?

No, and this is one of the few genuinely clear answers in the area. The IRS comparison table lists "foreign financial account for which you have signature authority" and records it as reportable on the FBAR, subject to exceptions, and not reportable on Form 8938 unless you otherwise have an interest in the account.

That asymmetry matters for the look-back. In the covered tax return years an asset enters the penalty base because it should have been reported on Form 8938 — and a pure signature-authority account was not required to be. The FBAR years are the pressure point, not the return years.

How do you show the failure was non-willful?

If a streamlined route is used, the certification on Form 14654 is signed under penalties of perjury and is the riskiest document in the file. For a signatory the narrative is usually straightforward and usually true: you were added to a parent's account for practical reasons, the money was never yours, you took nothing from it, and nobody told you that authority over someone else's foreign account was reportable in America.

It still has to be documented. Get the bank mandate showing the date and the capacity in which you were added, and be candid about anything that cuts the other way. Our guide to what non-willful really means sets out how the IRS reads these facts.

What should you gather first?

The account-opening or mandate paperwork, with the date you were added and the capacity recorded.
A statement from the bank confirming whether you are a joint holder or an authorised signatory — the two are not always distinguished in a family's own account of events.
Year-end balances for every year the authority was in place.
A list of every other foreign account or asset you hold in your own name, however small.
Copies of the US returns you filed for those years, and any IRS correspondence.

Next Tax Source assesses the route before preparing anything, so that nobody pays a streamlined penalty for a problem the delinquent FBAR procedures would have fixed. Every package is reviewed and signed off by an IRS Enrolled Agent who is also an ACCA-qualified accountant; you sign and submit. If you are on a parent's overseas account and have never filed an FBAR, book a confidential consultation and bring the mandate — what that document says decides which programme you need. Engagement pricing is agreed before work starts.

Written by the Next Tax Source US desk. Every filing we prepare is reviewed and signed off by a licensed professional: an IRS Enrolled Agent who is also an ACCA-qualified accountant. This article is general guidance, not advice on your facts. Last updated 26 October 2026.

Frequently asked questions

Do I have to file an FBAR for a parent's overseas account I can sign on?+

Generally yes. The FBAR reaches a US person with a financial interest in, or signature or other authority over, at least one financial account located outside the United States where the aggregate value of those accounts exceeded $10,000 at any time during the calendar year. Signature authority means you can control the disposition of the assets by direct communication with the bank. You do not need to own the money, and you do not need to have ever used the authority.

Does being a signatory on a foreign account mean I owe US tax on it?+

Normally no. Interest and other income credited to the account belong to the account owner, not to the person named on the mandate, so nothing goes on your Form 1040 because of the authority alone. Two things can change that: if the paperwork actually made you a joint owner rather than a signatory, a share of the income may be yours; and if money was gifted to you from the account, a large gift from a foreign person can carry its own information-return obligation.

Is the Streamlined Domestic Offshore Procedure the right fix for missed FBARs on a parent's account?+

Not necessarily. The IRS describes the domestic streamlined procedures as being for taxpayers who failed to report gross income from a foreign financial asset, and who may additionally have failed to file FBARs or information returns. Where unfiled FBARs for signature-authority accounts are the only lapse, with no unreported income, that central condition may not be met, and the delinquent FBAR submission procedures may be the fitting route instead. Which applies depends on your whole position and should be settled before anything is prepared.

Does signature authority have to be reported on Form 8938 as well?+

No. The IRS comparison of Form 8938 and FBAR requirements states that a foreign financial account for which you have signature authority is not reportable on Form 8938 unless you otherwise have an interest in the account, while it is reportable on the FBAR, subject to exceptions. This asymmetry matters in a streamlined look-back, because it affects which years an account can be treated as having gone unreported.

What if I was made a joint holder rather than just a signatory?+

Then the analysis changes substantially. A joint holder has legal title, which is a financial interest rather than mere authority, and that can bring a share of the income onto your US return, bring the account within Form 8938 where the thresholds are met, and change how the account is treated in any streamlined penalty computation. In several countries the standard paperwork for adding an adult child creates joint ownership, so the bank mandate should be read rather than assumed.