Best Judgment Assessment Under Section 144: What It Means

Most income tax assessments proceed on the basis of what the taxpayer has filed and explained. Section 144 covers the opposite scenario: what happens when the taxpayer does not give the assessing officer enough to work with. Understanding when this provision applies, and how the resulting assessment differs from a normal one, matters because the practical stakes (a higher estimated tax demand, a narrower appeal) are meaningfully different from a standard scrutiny outcome.

When Can a Best Judgment Assessment Be Made?

The assessing officer can proceed under Section 144 in a defined set of circumstances, all involving some form of non-compliance or non-cooperation rather than a simple disagreement over figures:

• Failure to file the return of income within the statutory deadline or any extended deadline allowed, and no return is filed even in response to a subsequent notice.
• Failure to comply with a notice requiring the taxpayer to produce accounts, documents, or specific information called for during assessment.
• Failure to comply with a scrutiny notice issued under Section 143(2), where the taxpayer does not respond or does not appear despite being called upon to do so. For the mechanics of what that notice itself requires, see our guide on income tax notices.
• Failure to get accounts audited where a tax audit was mandatory and the audit report was not furnished as required.
• Dissatisfaction with the accounts produced, even where the taxpayer has participated: if the officer is not satisfied about the correctness or completeness of the accounts, or the method of accounting has not been regularly followed, a best judgment assessment can still follow despite some level of engagement from the taxpayer.

In each case, the officer is generally required to give the taxpayer an opportunity to be heard before finalising the assessment on a best judgment basis, except where that opportunity has already been given and ignored through the very default that triggered the provision in the first place.

How It Differs From a Normal Assessment

The core difference is the direction the evidence flows from. In a normal assessment, whether accepted at the intimation stage or completed after full scrutiny, the officer works from the taxpayer's own return, books, and submissions, verifying and adjusting specific items where warranted. The taxpayer's own version of the facts is the starting point.

In a best judgment assessment, that starting point is missing or incomplete, so the officer builds the income estimate from whatever is available externally: bank statements and third-party reporting data, comparable cases in a similar business or profession, the taxpayer's own past assessment history, any partial books or documents that were produced before the default, and general knowledge of the trade or profession involved. The word "judgment" does not mean arbitrary; the estimate must have a rational basis connected to the material on record, but it is inherently an estimate made without the full picture the taxpayer alone could have provided. This is why best judgment assessments are very often higher than what a fully cooperative assessment would have produced, since ambiguity in the available material tends to be resolved against the non-compliant party.

Remedies: Appeal and Its Narrower Grounds

A best judgment assessment order is appealable to the Commissioner (Appeals) and, beyond that, to the Income Tax Appellate Tribunal, following the same appellate structure as any other assessment order. In practice, though, contesting a Section 144 order successfully is harder than contesting a normal scrutiny addition, for a straightforward reason: the appellate authority is reviewing whether the officer's estimate was a reasonable exercise of judgment on the material that was actually available at the time, not re-litigating the full facts as if the taxpayer had cooperated from the start.

That said, several grounds do succeed regularly:

• The estimate had no rational basis or ignored material that was in fact available to the officer, such as a partial submission made before the deadline that was disregarded.
• Proper opportunity of being heard was not given before the order was passed, where the law required it.
• Procedural defects in how the assessment or the underlying notices were issued.
• Fresh evidence explaining the original default, for instance a return that was in fact filed but not properly recorded, or a genuine reason for non-appearance that the officer did not consider.

What generally does not succeed is a straightforward reworking of the income computation as if the case were a normal assessment; the taxpayer's own failure to provide that computation when it mattered is the reason appellate relief on pure quantum grounds is harder to obtain here than in an ordinary scrutiny appeal.

The Better Option: Avoiding It in the First Place

Because a best judgment assessment is triggered by a default rather than a substantive tax dispute, the most reliable remedy is almost always available earlier in the process than the appeal stage. Filing the return even after the due date, responding to a notice even after the stated deadline (with a reasonable explanation for the delay), or producing the requested accounts before the assessment is actually finalised can persuade the officer to proceed on the ordinary track instead of invoking Section 144. Once the order is passed, options narrow considerably to appeal, or in limited circumstances rectification, both of which take longer and carry the narrower success grounds described above.

If you have missed a filing deadline, an assessment notice, or a scrutiny appearance, the priority is to act before the assessment is closed, not after. Our tax advisory and representation services include urgent response drafting to prevent a best judgment assessment, and appeal representation where one has already been passed.