LUT for exporters: what it is and how to renew it every year
A Letter of Undertaking lets you export without paying IGST upfront. Here is what it covers, who can file it, how to renew it each financial year, and the conditions that come with it.
For Indian businesses that invoice abroad
Invoice the world.
Invoice the world.
Reconcile in rupees.
Export invoices with the LUT, exchange rate and declaration filled in from the date. Then see what actually reached your bank, fees and all, in a register your CA can sign off.
- LUT ARN printed on every invoice
- Rate on or before the invoice date
- Receipts, fees and FIRC per invoice
- Read-only login for your CA
Try a currency
Tax invoice · Export of services
KS/26-27/010
FromKestrel Software Pvt Ltd
Bill toHarbourline Analytics Inc.
Date06 Oct 2026
Software development, sprint 36 SAC 998314USD 8,800.00
Cloud support retainer, October SAC 998316USD 2,400.00
IGST 0% under LUT · rate ₹90.3439 (01 Oct)
USD 11,200.00
₹10,11,851.68
Supply meant for export under LUT without payment of integrated tax · ARN AD290326011873K · FY 2026-27
Realised22 Oct · SWIFT wire
₹10,08,065.68
Fees & spread₹3,786.00 · 0.37%
Effective rate₹90.0059
Days to realise16
On the CA registerYes
Figures from our demo organisation (fictional data).
The product
This is what you sign in to
Real screens from Invoice Hub, filled with our fictional demo company.
Export invoices LUT tracking Dated exchange rates Realisation & bank charges CA register Two-factor sign-in Roles & permissions Activity log Read-only API Duplicate invoices
Everything an export invoice needs
Stop rebuilding the same invoice in a spreadsheet
Masters you set up once, invoices that carry the right compliance details every time, and numbers that tie out in rupees.
Export invoices, done right
Zero-rated invoices with your LUT, buyer, currency, bank details, logo, stamp and signature. Print-ready on A4, duplicated in one click.
LUTs that never lapse quietly
Keep each company’s Letter of Undertaking with its validity dates. The active LUT is picked up when you raise an invoice.
Multi-currency, dated rates
Store exchange rates by date, one at a time or by bulk import, so every invoice shows its INR value at the right rate.
Realisation and bank charges
Record what was received, when, and what your bank deducted, so your receivables reflect what actually landed.
A CA register, on demand
Every invoice in one register with CSV export and printable CA copies, kept separate from the copy your client sees.
Many companies, one login
Run several exporting entities side by side, each with its own bank accounts, LUTs and branding.
How it works
Live in an afternoon, not a quarter
No installation. We set up your organisation and you bring the details you already have.
We set up your organisation
Accounts are invite-only. We create your organisation and your administrator, who then invites the team with the right roles.
Add your masters once
Companies, LUTs, bank accounts per currency, buyers and exchange rates. Reused on every invoice from then on.
Raise, send and reconcile
Create the invoice, mark it sent, record the payment when it lands. The CA register keeps itself up to date.
Receivables
Know what actually landed in your account
An export invoice isn’t done when it’s sent. Track every one from draft to paid, and record realisation the way your bank statement shows it.
- Clear statuses — Draft, Sent, Paid or Cancelled, filterable in one list.
- Realisation — amount received, date and bank charges against each invoice.
- A dashboard that shows what is invoiced and what is still outstanding.
Control
Your team sees exactly what they should
Give your accountant the register without the bank settings, and your sales team invoices without user management.
- Four ready-made roles — Administrator, Manager, Accountant, Viewer — or build your own.
- Enforced on the server for every page and action, not just hidden buttons.
- Two-factor sign-in and an activity log of sign-ins and changes.
Who it’s for
Built around how Indian exporters work
Merchandise exporters
Goods shipped under LUT, priced in the buyer’s currency, reconciled in rupees.
Service exporters
IT, design and consulting firms billing overseas clients as zero-rated exports.
CA firms
Give clients a proper invoicing tool and get a register you can work with.
Business groups
Several exporting entities, one team, one place to see them all.
From the blog
Export compliance, explained plainly
Practical guides on LUTs, GST reporting, exchange rates and realisation.
GST
GST
What must an export invoice contain under GST? A field-by-field checklist
The GST rules set out exactly what a tax invoice must show, with extra requirements for exports. Use this checklist before the next invoice goes out.
Exchange rates
Which exchange rate should you use on an export invoice?
The rate for GST valuation, the rate on the shipping bill and the rate your bank actually gives you are three different numbers. Here is how they fit together.
Pricing
Plans that grow with your shipments
From ₹799 a month, billed annually. Every plan includes export invoices, LUTs and multi-currency.
Raise your next export invoice in minutes
Tell us about your business and we will set up a walkthrough with your own companies, buyers and currencies.