How the SDOP Penalty Base Is Measured

The Streamlined Domestic Offshore Procedures penalty is 5% of the highest aggregate year-end value of your penalty-eligible foreign financial assets, across the last three tax-return years and six FBAR years. You total each year's year-end values, take the highest single year, and include only assets that were unreported or whose income was omitted — and only to the extent of your own financial interest in them.

That last clause does most of the work, and it is the part the IRS leaves out of its main procedure page. The rules on ownership, on companies and trusts, and on valuation live in a separate IRS question-and-answer page for the domestic procedures that almost nothing written on this subject uses. This guide works from it, for the people the domestic track exists for: green card holders, naturalised citizens and Americans who inherited money abroad.

Key takeaways

• The base is year-end values, not the highest balance in the year — unlike the FBAR, which reports each account's maximum value.
• You aggregate every year in the look-back, then take the single highest year. You do not add the years together.
• An asset only counts in a year when something went wrong for it in that year: a missing FBAR, a missing Form 8938, or unreported income from it. A compliant year is entered as zero.
• Only your own financial interest counts. An account you merely sign on, and the share of a joint asset you do not own, are outside the base.
• For a foreign company, the base takes the shares, not the company's bank accounts — unless the company is disregarded for US tax purposes.

Who pays the domestic penalty in the first place?

The IRS runs two streamlined filing compliance procedures. The foreign track is for people who meet a non-residency test and carries no miscellaneous offshore penalty. The domestic track is for US residents who fail that test, and it is the one that charges it — on the conditions set out on the IRS page for the streamlined domestic offshore procedures: non-willfulness, original returns already filed and now amended on Form 1040-X, the missing FBARs filed, and the certification signed on Form 14654.

Our overview of the Streamlined Domestic Offshore Procedure covers eligibility, and green card holder: SDOP or SFOP? covers which track you are on. This article assumes you qualify and concentrates on the penalty number.

Which years are in the look-back?

Two overlapping windows, and they are not the same length:

| Window | Length | What makes an asset count in a year |

|---|---|---|

| Covered tax return period | The most recent three years whose return due date has passed | The asset should have been on Form 8938 and was not, or it was reported but its income was left off the return |

| Covered FBAR period | The most recent six years whose FBAR due date has passed | The asset should have been on an FBAR and was not |

The six FBAR years include the three tax years, so in practice you test six. For the older three, only the FBAR question matters; for the most recent three, an asset can enter through any of the three failures.

How is each year's aggregate built?

For each year, list every foreign financial asset subject to the penalty in that year, take its value at the end of that year, and add them up. The base is the highest of those annual totals — the IRS says to "add up the totals for each year and select the highest aggregate amount as the base for the 5-percent penalty". Four consequences follow:

• Timing inside a year does not matter. A balance that peaked in June and was spent by December contributes only its December figure — the opposite of the FBAR, which asks for the maximum value during the year.
• Compliant years are entered as zero, not reduced. Where an account was FBAR compliant in a year — and, for the most recent three years, also Form 8938 and Form 1040 compliant — the IRS says "the amount entered on the form will be zero".
• Assets drop in and out across years. An account unreported four years ago and correctly reported since contributes in the earlier year and nothing later.
• A closed account can still drive the number. An inherited account that was unreported and has since been emptied into a US account may still set the base through its year-end value in that earlier year.

Whose interest counts?

The penalty, in the IRS's words, "is not intended to reach assets in which the taxpayer had no financial interest" — giving as its example "an employer's account over which the taxpayer had only signature authority". The same principle covers "portions of assets the taxpayer did not personally own", and when computing you "enter the value of the taxpayer's personal financial interest in each asset" at each year end. Three practical results:

• Signature authority alone is not enough. An employer's account, or a parent's account you were added to purely so you could operate it, may well be FBAR-reportable by you, but it is not your asset for the penalty base. Reporting duty and penalty base are separate questions, and conflating them is the most expensive error we see.
• Joint accounts are split. The base takes your portion, not the whole balance. The FBAR, by contrast, reports the full account value.
• You have to evidence it. This is a factual question about beneficial ownership, so the Form 14654 narrative is where you explain whose money it was, where it came from, and who operated it.

Companies, partnerships and trusts: the look-through rule

Suppose you own a foreign company outright and it holds the bank accounts. Which goes into the base — the shares, or the accounts?

The IRS answer is the shares. "The penalty base includes the stock in the corporation (and not the underlying financial accounts)", unless the corporation is a disregarded entity for federal income tax purposes, in which case the underlying accounts are included. Being a shareholder does not make you the owner of the company's assets, and the IRS says "the same principle would apply to assets that are held in a foreign partnership or trust".

This rule moves the number more often than any other, in both directions: it can shrink a base where a company holds cash at year end, and expand one where a trading company's share value exceeds its bank balances.

Which assets are foreign financial assets at all?

The IRS points to the FBAR and Form 8938 definitions: foreign bank accounts, accounts at a foreign branch, foreign stock or securities held outside an account, foreign mutual funds, foreign hedge and private equity funds, cash-value foreign life policies, and interests in foreign entities. For the US-resident persona, a few categories decide most cases:

| Asset | In the base? | Why |

|---|---|---|

| Bank and savings accounts in your country of origin | Yes, if unreported | Classic FBAR and Form 8938 assets |

| An account you inherited and never retitled | Yes, if unreported | Ownership, not who opened it, is what counts |

| A foreign pension or provident fund | Often | Many foreign pensions are reportable financial accounts; a defined-benefit entitlement is taken at the present value of the accrued benefit |

| Shares in your own foreign company | Yes — the shares | The company's own accounts stay out unless it is disregarded |

| A house or flat abroad in your own name | No | Directly held real estate is not a foreign financial asset, whether or not it was tax compliant |

| An employer account you only sign on | No | No financial interest |

| Gold or cash kept physically at home | No | Not held in an account, not a security |

Two refinements the general lists miss. Assets reported on timely filed Forms 3520 or 5471 are excluded — but delinquent ones are not. The IRS is explicit that the Form 8938 cross-reference exists to avoid duplicate reporting and does not change what a foreign financial asset is, so a late 5471 does not take the asset out. And certain Canadian retirement plans are excluded where the taxpayer is an eligible individual treated as having made the late treaty election under Rev. Proc. 2014-55; the narrative has to say so.

The house is the item people most often over-include. Leaving it out of the base does not mean leaving it out of the filing: rental income or a gain on sale still belongs on the amended returns.

Valuation, and converting into dollars

For anything other than a bank balance, each year-end value is a judgement. The IRS allows "any reasonable method of valuing the stock, such as using the balance sheet on the Form 5471" — a pragmatic standard, not an appraisal standard. But it draws one hard line: "No valuation discounts may be taken on foreign financial assets subject to the 5-percent penalty." A minority-interest or marketability discount that would be ordinary in a gift tax valuation is not available here.

On currency, note what the IRS does not say: neither page names an exchange rate source. So pick one year-end source, apply it to every asset in every year, and record in the narrative which you used. A balance that was stable in rupees, pounds or pesos can produce a different highest year once converted, simply because the dollar moved.

What a worked calculation looks like

Take a green card holder in Texas with three unreported foreign accounts: a savings account opened before arriving in the US, an account inherited from a parent, and a provident fund from a previous job abroad.

1. Year by year, list which assets were subject to the penalty, and at what share. The inherited account only enters from the year of inheritance; if a sibling inherited half, only your half counts.

2. For each year, add the year-end dollar values of the assets in the base that year, entering zero where an asset was compliant.

3. Pick the highest annual total, then apply the rate to that single figure. If the inherited account was largest just after inheritance and has since been partly spent, that year is likely to set the base.

The amended-return and FBAR work is the same in every streamlined case. The penalty calculation is where the domestic track diverges, and why the inventory has to be built year by year rather than as a single list of accounts.

What if the figure is wrong?

You certify on Form 14654 that the penalty amount is accurate, and you must keep the supporting information and "be prepared to provide it upon request". An understated figure undermines the certification, and the certification is what gives the procedure its value: a compliant filer faces only the miscellaneous offshore penalty rather than accuracy-related, information-return and FBAR penalties.

But an error is not fatal, and this is the part most guides omit. Where the returns are not under examination, the IRS sets out a correction route: corrected amended returns and an amended Form 14654, marked "amended" in red ink and explaining the facts of the error, sent to the Streamlined unit in Austin. If income from an omitted asset was never reported you will need amended returns, a fresh certification and payment; if the income was reported all along and only the base was wrong, an amended Form 14654 and the extra penalty may be enough. Separately, where a Canadian retirement plan was wrongly included, Form 14708 exists to ask for that to be reconsidered.

If you are weighing whether to use the procedure at all, our guide on catching up missed FBARs explains the alternatives when there is no unreported income, and our guide to how the streamlined procedures work compares the two tracks.

How Next Tax Source prepares the penalty computation

We build the inventory year by year, apply the FBAR and Form 8938 tests to each asset in each year, evidence your actual financial interest in each one, apply the look-through rule to any company or trust, convert at a single documented rate, and show the highest-year calculation so it can be produced if the IRS asks. The amended returns, FBARs and Form 14654 narrative are prepared together so they agree. Every package is reviewed and signed off by our licensed professional — an IRS Enrolled Agent who is also ACCA-qualified — and you sign and submit it yourself. Book a consultation to have your look-back mapped before anything is filed, or see our pricing for what a streamlined package involves.