LUTs (Letters of Undertaking)
Record each company's LUT per financial year so export invoices carry the right ARN automatically.
If you export without paying IGST, each company needs a valid LUT for the financial year. Record it under Companies → LUTs → Add LUT.
Fields
| Field | Notes |
|---|---|
| Financial year | For example 2026-27. |
| LUT ARN | The acknowledgement number from the GST portal. |
| Issue date | Filled in as 1 April of the year if you leave it blank. |
| Valid till | Filled in as 31 March of the year end if you leave it blank. |
| Status | Active, Expired or Superseded. |
| Notes | Optional. |
How invoices use it
When you raise an invoice, Invoice Hub picks the LUT in force on the invoice date and fills in the LUT ARN and LUT FY for you.
Warning: If an invoice under LUT has line items with GST, Invoice Hub shows a "Worth checking" warning: under an LUT, export lines should be at 0%.
New to LUTs? Read LUT for exporters: what it is and how to renew it.
Something unclear or out of date? Tell us.