What is LUT explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
LUT (Letter of Undertaking) is a term you will often come across in GST. This guide explains what LUT means, gives a simple example, and shows why it matters for taxpayers and businesses — in plain English.
What is LUT?
LUT stands for Letter of Undertaking. It is a document filed by exporters under GST that allows them to export goods or services without paying IGST upfront.
In practical terms, LUT is a GST concept — it affects how indirect tax is charged, credited or reported on the supply of goods and services. Understanding it helps you read financial documents, stay compliant and make better decisions.
LUT explained with an example
An IT services exporter files an LUT so it can invoice foreign clients without charging IGST. Examples like this make it easier to see how LUT works in real situations.
Why LUT matters
The LUT eases exporters' cash flow by avoiding payment and later refund of IGST.
LUT at a glance
| Full form | Letter of Undertaking |
| Category | GST |
| Meaning | A document filed by exporters under GST that allows them to export goods or services without paying IGST upfront. |
| Example | An IT services exporter files an LUT so it can invoice foreign clients without charging IGST. |
Key points to remember
- Full form: Letter of Undertaking
- Where it applies: GST
- In short: A document filed by exporters under GST that allows them to export goods or services without paying IGST upfront.
- Why it matters: The LUT eases exporters' cash flow by avoiding payment and later refund of IGST.
Related terms
If you are learning about LUT, these related terms are worth knowing too:
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