Foreign income disclosed in ITR-U: Why it could still trigger Black Money Act - FAST-DS 2026 Paradox

The Foreign Assets of Small Taxpayers Disclosure Scheme, 2026 (FAST-DS 2026) provides a time-bound opportunity for eligible taxpayers to regularise past non-disclosure of foreign income and foreign assets. The scheme seeks to facilitate voluntary compliance and resolve legacy cases that could otherwise attract substantially more severe consequences under the Black Money (Undisclosed Foreign Income and Assets) and Imposition of Tax Act, 2015 (“the Black Money Act”).

But what happens when a taxpayer discovers an omission on his own and voluntarily discloses the foreign income through an updated return (ITR-U) under Section 139(8A) of the Income-tax Act, 1961, before receiving any communication from the Assessing Officer regarding that foreign income? Can the income still be treated as “undisclosed foreign income” under Section 4 of the Black Money Act?

The issue becomes particularly significant in the context of FAST-DS 2026 because foreign income already offered to tax through a valid ITR-U may, on a plain reading of the scheme, no longer fall within its definition of “undisclosed foreign income”, while the same foreign income may potentially continue to be regarded as “undisclosed foreign income” under Section 4 of the Black Money Act.


It is this apparent disconnect between the updated-return mechanism, the Black Money Act and FAST-DS 2026 that requires clarification.

FAST-DS refers to Section 139; so where does ITR-U fit in?

Section 132 of the Finance Act, 2026, for the purposes of FAST-DS 2026, provides that a declaration under the scheme may be made in respect of any previous year where an eligible assessee has failed to furnish a return under Section 139 of the Income-tax Act, 1961; failed to disclose the asset or income in a return furnished under that Section before commencement of the scheme; or where such asset or income has escaped assessment within the meaning of Section 147 of the Income-tax Act, 1961.

The reference to “Section 139” is significant.

Section 139, titled “Return of income”, contains various provisions relating to filing income tax returns. These include a return furnished within the prescribed time under Section 139(1), commonly referred to as an original return; a belated return under Section 139(4); a revised return under Section 139(5); and an updated return under Section 139(8A).

There is another dimension to consider. Where undisclosed foreign income is subsequently disclosed and offered to tax through a valid updated return under Section 139(8A), the income has been brought to tax under the Income-Tax Act. Ordinarily, therefore, the very income so disclosed would no longer remain income that has escaped assessment merely because it had been omitted from the earlier return.

It is the updated return or ITR-U that raises a significant issue when FAST-DS 2026 is read together with Section 4 of the Black Money Act. FAST-DS expressly excludes from its purview foreign income disclosed in a return furnished under Section 139—which includes an updated return under Section 139(8A).

But Section 4 of the Black Money Act does not exclude income disclosed through ITR-U

Section 4(1) of the Black Money Act determines the scope of total undisclosed foreign income and assets.

It covers, among other things, foreign-source income that has not been disclosed in a return furnished within the prescribed time under section 139(1) or in a belated return under section 139(4) or a revised return under section 139(5) of the Income-tax Act, 1961. It also covers foreign-source income where the taxpayer was required to furnish a return but no return was furnished within the time permitted under these specified provisions.

What is significant is that Section 139(8A), which provides for an updated return, does not find mention in Section 4 of the Black Money Act.

Consider a taxpayer who inadvertently omitted taxable foreign income from the original return. The taxpayer subsequently discovers the omission and, before receiving any communication from the Assessing Officer regarding that foreign income, files a valid ITR-U, includes the omitted income and pays the applicable tax, interest and additional income-tax.

Does that foreign income cease to be “undisclosed foreign income” for the purposes of section 4 of the Black Money Act merely because it has subsequently been disclosed and taxed through ITR-U?

On a plain reading of section 4 of the Black Money Act, the answer appears to be no.

The provision specifically recognises disclosure through the returns referred to in Sections 139(1), 139(4) and 139(5), but does not similarly provide for excluding foreign income from the scope of “undisclosed foreign income” merely because it was subsequently disclosed through an updated return under Section 139(8A).

This creates an apparent statutory disconnect: the foreign income has been voluntarily disclosed and brought to tax under the Income-tax Act, yet it may continue to be treated as “undisclosed foreign income” for the purposes of section 4 of the Black Money Act.

ITR-U was introduced to encourage voluntary compliance

Section 139(8A) permits an eligible taxpayer to furnish an updated return whether or not an original, belated or revised return had earlier been furnished. Following the amendment made by the Finance Act, 2025, an updated return may generally be furnished within 48 months from the end of the relevant assessment year, subject to the prescribed conditions.

ITR-U is not a cost-free correction mechanism. Depending on when the return is filed, the taxpayer is required to pay the applicable tax and interest, together with substantial additional income tax ranging from 25% to 70%, in accordance with Section 140B.

The policy underlying the provision is therefore evident from its structure: subject to specified restrictions and an additional tax cost, a taxpayer who discovers previously omitted income is given an opportunity to voluntarily bring that income into the tax system.

Against this background, whether foreign income voluntarily disclosed and brought to tax through a valid ITR-U should nevertheless continue to be treated as “undisclosed foreign income” under the Black Money Act assumes considerable importance.

Also read: Foreign Asset Disclosure Scheme 2026: From budget proposal to rollout - what residents and NRIs need to know

Why the communication requirement under ITR-U matters

The third proviso to Section 139(8A) itself places restrictions on filing an updated return. One of them specifically deals with information available with the Assessing Officer under the Black Money Act, among other specified laws.

An updated return cannot be furnished for the relevant assessment year where the Assessing Officer has information in respect of the taxpayer under the Black Money Act and such information has been communicated to the taxpayer by the Assessing Officer before the updated return is furnished.

It indicates that mere possession of information by the tax administration does not, by itself, necessarily trigger this particular restriction. What matters for this restriction is whether the relevant information has been communicated by the Assessing Officer to the taxpayer before the ITR-U is furnished.

Consider two situations.

Situation	Position under section 139(8A)
1. Information under the Black Money Act has already been communicated by the Assessing Officer to the taxpayer	Section 139(8A) prohibits the filing of an updated return (ITR-U).
2. Taxpayer voluntarily discovers the omission before any such communication	ITR-U can be filed, subject to the applicable conditions, offering the foreign income to tax and paying the applicable tax, interest and additional income-tax.

The second situation raises the real issue. Even where the taxpayer voluntarily discloses the foreign income through a legally valid ITR-U before any such communication by the Assessing Officer and pays the applicable tax, interest and additional income tax, the income may, on a plain reading of section 4 of the Black Money Act, continue to constitute “undisclosed foreign income” and remain exposed to the consequences prescribed under that Act.

This creates an apparent disconnect with the voluntary-compliance objective underlying Section 139(8A). The Income-tax Act, 1961 permits the taxpayer, subject to specified conditions and a substantial additional tax cost, to voluntarily bring the omitted income into the tax system; yet the same voluntary disclosure may not, on a plain reading of Section 4 of the Black Money Act, cure its character as “undisclosed foreign income” under that Act.

FAST-DS 2026 creates a paradox

The issue becomes even more significant when the definition of “undisclosed foreign income” under FAST-DS 2026 is considered.

Section 131(1)(k) of the Finance Act, 2026 defines “undisclosed foreign income” for the purposes of the Scheme, broadly, as income from a source located outside India which was chargeable to tax in India but has not been offered to tax under the Income-tax Act, 1961.

This formulation is materially different from section 4 of the Black Money Act.

If foreign income has already been offered to tax through a valid ITR-U, a plain reading of the FAST-DS definition suggests that such income may no longer qualify as “undisclosed foreign income” for the purposes of the Scheme.

Also read: Updated return vs black money law: Drafting gap may trigger 30% tax and 300% penalty under Finance Bill 2026

Paradox at a Glance

Provision Treatment of foreign income disclosed through valid ITR-UReason

Black Money ActMay continue to be regarded as “undisclosed foreign income”Section 139(8A) is not one of the return provisions expressly recognised under section 4.

FAST-DS 2026May no longer qualify as “undisclosed foreign income”Section 131(1)(k) covers foreign income that “has not been offered to tax” under the Income-Tax Act; income disclosed through valid ITR-U has already been offered to tax.

This creates an apparent interpretational paradox: the same foreign income may arguably continue to be “undisclosed foreign income” for the purposes of section 4 of the Black Money Act, while no longer qualifying as “undisclosed foreign income” for the purposes of FAST-DS 2026.

This apparent disconnect between the Black Money Act, the updated-return provisions and FAST-DS 2026 creates uncertainty not only for taxpayers who have already voluntarily disclosed their foreign income through ITR-U but also for those who may be considering whether to use the updated-return mechanism to disclose such income. Unless the position is clarified, the different treatment of the same foreign income under these provisions could lead to avoidable litigation.

Why CBDT needs to clarify

Both the updated-return mechanism and FAST-DS 2026 broadly seek to encourage voluntary compliance and reduce avoidable litigation. Yet an apparent anomaly remains. Foreign income voluntarily disclosed and offered to tax through a valid ITR-U may, on a plain reading of section 4 of the Black Money Act, continue to be treated as “undisclosed foreign income” because Section 139(8A) is not referred to in that provision. At the same time, such income may not qualify as “undisclosed foreign income” for the purposes of FAST-DS 2026 because Section 131(1)(k) refers to foreign income that “has not been offered to tax” under the Income-Tax Act.

The omission of Section 139(8A) from Section 4 of the Black Money Act may have an understandable historical explanation: the updated-return mechanism was introduced subsequently. However, the present-day consequences of that omission now need to be addressed, particularly where a taxpayer has voluntarily disclosed foreign income through a legally valid ITR-U and paid the applicable tax, interest and additional income tax before information relating to such foreign income under the Black Money Act was communicated by the Assessing Officer to the taxpayer.

CBDT may therefore consider specifically clarifying the treatment of foreign income that was omitted from an original, belated or revised return but was subsequently voluntarily offered to tax through a valid ITR-U before information relating to such foreign income under the Black Money Act was communicated to the taxpayer. Such clarification would help harmonise the interaction between section 139(8A) of the Income-Tax Act, Section 4 of the Black Money Act and section 131(1)(k) of the Finance Act, 2026, and reduce avoidable litigation.

Without such clarification, an anomalous situation may arise: a taxpayer who voluntarily disclosed foreign income through a valid ITR-U and paid the applicable tax, interest and substantial additional income tax may continue to face exposure under the Black Money Act, even though the same income may no longer fall within the definition of “undisclosed foreign income” for the purposes of FAST-DS 2026.

With the FAST-DS 2026 declaration window closing on December 31, 2026, an early clarification from CBDT on the treatment under the Black Money Act of foreign income voluntarily disclosed through a valid ITR-U would provide much-needed certainty and enable affected taxpayers to make an informed compliance decision before the Scheme closes.

The author, O.P. Yadav, is a former IRS officer with over 36 years of experience in tax administration, education, and training. He is presently associated with Prosperr.io as Tax Evangelist. The views expressed are personal.