GST on Goods Transport Agency: 5% RCM vs 18% Forward Charge

The internal auditor pulls twelve transporter bills from one quarter and finds three different tax treatments for the same lane. One GTA billed with no tax and the plant paid reverse charge. Another billed 5% CGST and SGST and the plant also paid reverse charge, so the tax went out twice. A third billed 18% after September 2025 while the vendor master still said "RCM", so the credit sat unclaimed in a suspense account.

Each of those errors traces back to two facts the buyer never recorded: whether the GTA filed Annexure V, and whether the buyer sits in one of the recipient categories that must pay reverse charge. Record both on the vendor master, test every invoice against them, and the GTA freight bill becomes a predictable posting with a known cash and credit effect.

• Topics in scope: the three tax outcomes for GTA freight since 22 September 2025, the reverse-charge recipient list, the Annexure V and VI windows, place of supply, cash payment and the shipper's invoice audit.
• Tools you can reuse: one ₹1,20,000 lane worked under 5% RCM, 5% forward charge and 18% forward charge, a break-even formula for comparing quotes, and a checklist for the vendor master.

Three tax outcomes for a GTA bill since the September 2025 change

A GTA freight bill now lands in one of three places: 5% paid by the recipient under reverse charge, 5% charged by the GTA without its own input credit, or 18% charged by the GTA with full credit. Notification 15/2025-Central Tax (Rate), effective 22 September 2025, replaced the old 6% central tax option with 9%, which is why the familiar "12% forward charge" no longer exists.

The GST Council's FAQ on the 56th meeting says GTA transport continues at the merit rate of 5% with no credit, with an option of 18% with full credit. The legal basis sits in serial 9, item (iii) of Notification 11/2017-Central Tax (Rate): sub-item (a) for a GTA that does not opt to pay tax itself, and sub-item (b) for one that does, at 2.5% or 9% central tax.

Under Notification 11/2017-Central Tax (Rate) serial 9 item (iii), as amended by Notification 15/2025 from 22 September 2025, a goods transport agency charges 2.5% central tax without input credit or, after an Annexure V declaration, 9% central tax with credit, so combined GST on GTA freight is 5% or 18%.

Who must pay reverse charge: the seven recipient categories

Reverse charge applies only when the recipient falls in a closed list, so check the buyer before you check the rate. Entry 1 of Notification 13/2017-Central Tax (Rate) moves the liability onto the recipient of GTA services for transport of goods by road when that recipient is in the taxable territory and is one of seven types of person.

• Factory: any factory registered under or governed by the Factories Act, 1948.
• Society: any society registered under the Societies Registration Act, 1860 or a similar law in force in any part of India.
• Co-operative: any co-operative society established by or under any law.
• Registered person: any person registered under the CGST, IGST, SGST or UTGST Act.
• Body corporate: any body corporate established by or under any law.
• Firm or AOP: any partnership firm, registered or not, including an association of persons.
• Casual taxable person: any casual taxable person.

Two provisos narrow the entry. Government departments, local authorities and governmental agencies registered only to deduct tax under Section 51 are carved out. And the entry does not apply where the GTA has registered, opted for forward charge and issued a tax invoice charging tax with the declaration prescribed in Annexure III. Without that declaration on the bill, the recipient should not assume the GTA has taken over the liability.

Recipients outside the list are not simply left with forward charge. Entry 21A of Notification 12/2017-Central Tax (Rate), inserted by Notification 32/2017, exempts GTA services to an unregistered person, including an unregistered casual taxable person, other than the listed categories. A household moving its own goods with a GTA that has not opted for forward charge pays no GST on the freight.

Consignment note, road haulage and the 2025 change to the GTA definition

The GTA rules apply only when a road transporter issues a consignment note, so the lorry receipt is the first document an auditor should ask for. Notification 15/2025 substituted the definition: a goods transport agency is any person providing service in relation to transport of goods by road who issues a consignment note, whatever that note is called.

The same substitution excluded e-commerce operators by whom, or through whom, local delivery services are provided. A buyer using an app-based local delivery service should not code those bills to the GTA tax treatment by default; the classification of that service has to be worked out separately with the tax team.

A hired truck with no consignment note, such as a vehicle rented with its driver under a hire contract, is not a GTA supply under that definition. It needs its own classification. Keep those contracts in a separate vendor category so the GTA logic does not run against them.

Annexure V and VI: the window that fixes a GTA's choice each year

A GTA's forward-charge choice is fixed before the financial year starts and stays in place until it files to revert, so the buyer can set the vendor flag once a year. Notification 06/2023-Central Tax (Rate) set the window for Annexure V at on or after 1 January and not later than 31 March of the preceding financial year.

• Deemed continuation: an option exercised for one year is deemed exercised for the next and future years unless the GTA files Annexure VI to revert to reverse charge in the same 1 January to 31 March window.
• New businesses: a GTA that starts business or crosses the registration threshold during a year can file Annexure V within 45 days of applying for registration or one month of obtaining it, whichever is later.
• Lock-in: Annexure V itself states that the option cannot be changed within one year of exercising it.
• Buyer's evidence: ask for the dated acknowledgement of Annexure V from the jurisdictional authority and keep it on the vendor record with the financial year it covers.

One ₹1,20,000 lane under 5% RCM, 5% forward charge and 18%

For a buyer that recovers all its input credit, the base freight is the only number that changes the cost; the tax rate mostly changes cash timing. The lane below is a full truckload from Chakan to Hosur billed by a Maharashtra GTA to a Maharashtra-registered consignor who pays the freight. All figures are illustrative.

Under the 18% option the GTA can now claim credit on inputs such as tyres, spares and insurance. Diesel is not one of them: Section 9(2) of the CGST Act defers central tax on high speed diesel until a date the Government notifies on the Council's recommendation. In this example the GTA's creditable inputs on the trip carry ₹6,000 of GST, which it passes back as a lower base.

Read the dollar column as a reference point only. GTA tax is a single-market topic: the US levies no federal VAT or GST on trucking, and whether a state taxes delivery charges differs from state to state, which this article does not cover. A US freight buyer's cost is the invoice, while an Indian buyer's cost depends on its credit position.

Net freight cost to the buyer:
  N = B + T × (1 − c)

  B = base freight on the GTA invoice (₹)
  T = GST charged on the invoice, or paid by the buyer under reverse charge (₹)
  c = share of that GST the buyer can recover as input credit (0 to 1)

Break-even base for an 18% quote against a 5% quote with base B5:
  B18_max = B5 × (1 + 0.05 × (1 − c)) / (1 + 0.18 × (1 − c))

  c = 1.00  →  B18_max = B5            (only the base matters)
  c = 0.50  →  B18_max = 0.9404 × B5
  c = 0.00  →  B18_max = 0.8898 × B5   (₹1,20,000 → ₹1,06,780)

Tolerance: compare quotes on N, rounded to the nearest ₹1.

For a freight buyer that recovers no input credit, an 18% GTA quote beats a 5% quote only when its base is at most 88.98% of the 5% base under Notification 11/2017 serial 9 item (iii); on a ₹1,20,000 lane that ceiling is ₹1,06,780, while a fully creditable buyer simply compares base freight.

Paying reverse charge: time of supply, cash ledger and the credit

Reverse-charge tax on GTA freight must be paid in cash and only then claimed as credit, so it costs working capital even when it costs nothing in the end. Section 49(4) of the CGST Act allows the electronic credit ledger to pay output tax, and Section 2(82) defines output tax to exclude tax payable on reverse charge basis.

The liability date comes from Section 13(3): for reverse-charge supplies, time of supply is the earlier of the payment date recorded in the recipient's books or debited in its bank, and the date immediately following sixty days from the supplier's invoice. A GTA bill dated 6 August and left unpaid crosses that line on 6 October, whatever the AP ageing says.

• Cash effect for most buyers: if the buyer has other output tax to pay, the ₹6,000 paid in cash is matched by ₹6,000 of credit used against that output tax, so net cash barely moves.
• Cash effect for exporters: a buyer with little output tax, such as a heavy exporter, pays the cash and accumulates the credit, so reverse charge becomes a real working-capital cost.
• Credit conditions: the credit still has to meet Section 16, which our freight GL coding guide walks through for transporter bills, including where recoverable GST should sit in the ledger.

For reverse-charge GTA freight, CGST Act Section 13(3) fixes time of supply at the earlier of payment or the day after sixty days from the GTA invoice, and Sections 49(4) and 2(82) require the 5% tax to be paid in cash before it returns as input credit in the buyer's return.

Place of supply decides CGST and SGST or IGST on the freight

For a registered buyer, the GTA bill is taxed by where the buyer is registered, not where the truck goes. Section 12(8) of the IGST Act places the supply of transportation of goods to a registered person at that person's location; for an unregistered recipient it is where the goods are handed over for transport.

A Gujarat GTA carrying goods inside Gujarat for a buyer registered in Karnataka therefore bills IGST, while a Maharashtra GTA carrying goods from Chakan to Hosur for a Maharashtra-registered consignor bills CGST and SGST. The rate is the same, 5% or 18%, split differently. AP rules that key the tax type off the origin and destination states will get this wrong on every third-party lane.

The buyer's audit check on every GTA invoice, with a failure trace

Every GTA invoice should pass four checks before payment: who the supplier is, what the vendor master says about its option, what the invoice itself shows, and whether the buyer's tax posting matches. Rule 46(p) of the CGST Rules makes every tax invoice say whether tax is payable on reverse charge basis, so the invoice should never leave this ambiguous.

• Supplier check: GSTIN active, consignment note attached, service shown under heading 9965 for goods transport.
• Option check: invoice rate matches the vendor flag for the year; an 18% bill from a vendor flagged "RCM" stops for review.
• Declaration check: a forward-charge bill carries the Annexure III declaration; a reverse-charge bill shows the RCM flag and no tax.
• Posting check: no reverse-charge self-assessment against a bill that already charges GST, and no missing self-assessment against a bill that charges none.

Here is an invented but typical sequence behind GTA audit findings: a bill with no tax and no declaration, posted as if nothing were due.

1. 4 Aug 2026, 18:20, dispatch: LR 55831 issued at Chakan for a load to Hosur; the GTA has no Annexure V on file.
2. 6 Aug 2026, 11:05, invoice: GTA invoice MT/0817 for ₹1,20,000 arrives with no tax and no reverse-charge flag; AP posts it to freight expense with tax code "exempt".
3. 20 Sep 2026, 15:40, payment: treasury pays ₹1,20,000; under Section 13(3) this payment date becomes the time of supply, and ₹6,000 of reverse-charge tax falls due in that month's return.
4. 20 Oct 2026, return filed: the September return goes out with no reverse-charge liability for MT/0817.
5. 10 Nov 2026, internal audit: the gap is found; the buyer pays ₹6,000 in cash with interest under Section 50 and claims the credit, and AP adds a rule that blocks posting a GTA bill with neither tax nor RCM flag.

Our earlier freight AP automation guide covers the wider match of LRs, proof of delivery and multi-LR settlement. This article stays narrower: it is the tax decision on one GTA bill, which that matching process should consume as a rule rather than re-decide on every invoice.

Where AP software can decide and where a tax reviewer must

Rate selection and the double-tax block can be fixed ERP rules once the vendor and entity masters are right; reading paperwork and judging edge cases still needs a person. The table names each task by what is actually being checked.

Vendor master and invoice controls to set up before April

Set the controls before the financial year starts, because that is when GTA options change. The checklist below assumes the buyer is registered and in the entry 1 list, which covers most manufacturers, distributors and retailers.

Related freight cost and audit topics are collected on the logistics and supply chain hub page. To have GTA tax rules configured in your ERP or TMS, or last year's transporter bills audited against vendor options, request a proposal and tell us your transporter count and GSTINs.