In short
GST (Goods and Services Tax) is India's single destination-based indirect tax on supply of goods and services, levied under the CGST Act 2017, the respective SGST Acts, the IGST Act 2017 and the UTGST Act 2017, with rules in the CGST Rules 2017. For logistics, two things matter most: how transport services themselves are taxed (GTA, courier, 3PL, warehousing) and the e-way bill — the electronic permit under Rule 138 that must accompany almost every consignment above ₹50,000 in value. A wrong e-way bill is the single commonest reason trucks are detained under Section 129, so dispatch, billing and transport teams are all judged on it. It is examined in BBA/B.Voc trade-and-compliance papers and in professional-body syllabi (CILT, IIMM, CII-IL), and it is the standard technical round for jobs in despatch, billing, warehouse documentation, transport coordination and 3PL operations at Delhivery, Blue Dart, TCI, VRL, Mahindra Logistics, DHL, Flipkart and Amazon.
Explained
GST basics a logistics person must hold
- Supply is the taxable event — sale, transfer, barter, exchange, licence, rental, lease or disposal for consideration in the course of business (Section 7, CGST Act). Movement of goods is not by itself a supply.
- Destination-based consumption tax: tax accrues to the state where the goods or services are consumed, not where they are produced — so place of supply decides which tax applies.
- Intra-State supply: CGST + SGST (or UTGST), split equally. Inter-State supply: IGST at the combined rate, collected by the Centre and apportioned. Example: 18% = 9% CGST + 9% SGST, or 18% IGST.
- Rate slabs since 22 September 2025: the structure was rationalised to 5%, 18% and a 40% demerit rate, with nil-rated and exempt items and special rates (3% on gold, 0.25% on rough diamonds). The earlier 12% and 28% slabs were merged into 5% and 18%. Rates change by notification — always verify the current rate for a specific HSN before quoting it.
- HSN codes classify goods; SAC codes classify services (transport of goods by road falls under SAC 9965/9967 heads). The correct code on the invoice drives both the rate and the e-way bill.
- Input tax credit (ITC): tax paid on inputs is set off against output tax, so only value added is taxed. Conditions (Section 16): a valid tax invoice, goods/services actually received, tax paid by the supplier, and the supplier's return filed so the invoice appears in the recipient's GSTR-2B.
- Registration: mandatory above the threshold (₹40 lakh turnover for goods, ₹20 lakh for services; lower in special-category states), and compulsory regardless of turnover for inter-State suppliers, e-commerce operators and casual taxable persons. Each state needs a separate registration.
- GSTIN is the 15-character identifier: 2 digits state code + 10-character PAN + 1 entity code + 1 blank/Z + 1 check digit.
How transport and logistics services are taxed
- Goods Transport Agency (GTA): a person who provides road transport of goods and issues a consignment note. The consignment note is what makes a transporter a GTA — a mere truck owner on hire without one is not.
- GTA options: either pay 5% without ITC or 18% with full ITC under forward charge (the choice is exercised annually for the year), or let the recipient pay under reverse charge at 5%. Reverse charge applies when the specified recipient is a factory, registered company, body corporate, partnership, co-operative society, casual taxable person or registered person.
- Reverse charge mechanism (RCM): the recipient pays the tax directly to the government and may then claim ITC of it (Section 9(3)/9(4), CGST Act). Standard in GTA freight — so a manufacturer paying a transporter must self-invoice and discharge 5% RCM.
- Exemptions in GTA service: transport of agricultural produce, milk, salt, food grain including flour, pulses and rice, organic manure, newspapers, defence equipment and relief materials; the earlier exemptions for a single carriage charged up to ₹1,500 and a single consignee charged up to ₹750 were withdrawn with effect from 18 July 2022 — exemption lists are amended by notification.
- Courier and express services: taxed at the standard service rate with ITC (no 5% option); warehousing of taxable goods is taxable, while storage of agricultural produce is exempt. Rail and air freight of goods, customs house agent and freight forwarding services carry their own rates and conditions.
- Place of supply of transport services (Section 12, IGST Act): if the recipient is registered, the recipient's location; if unregistered, the place where the goods are handed over for transport.
- Export of goods is a zero-rated supply — export either under LUT/bond without paying tax, or on payment of IGST and claim refund. Transport of export cargo beyond the Indian customs station follows the place-of-supply rules for international transport.
E-way bill: what it is and when it is needed
- Legal base: Rule 138 of the CGST Rules 2017, read with Section 68 of the CGST Act. Generated on the common portal (ewaybillgst.gov.in) as Form GST EWB-01, which returns a 12-digit EBN (e-way bill number).
- Trigger: movement of goods of consignment value exceeding ₹50,000 — whether for supply, for reasons other than supply (job work, branch transfer, repair, exhibition, sales return) or for inward supply from an unregistered person.
- Consignment value = value on the invoice (or delivery challan) including the GST charged, but excluding the value of exempt goods carried in the same conveyance.
- Who generates: the consignor (registered supplier) normally; the recipient if the supplier is unregistered; the transporter if neither has done so and the goods are handed over. An unregistered transporter uses a Transporter ID (TRANSIN) obtained via Form ENR-01.
- Mandatory irrespective of value: (i) inter-State movement of goods for job work, and (ii) inter-State movement of handicraft goods by a person exempt from registration.
- Not required when: goods move by non-motorised conveyance (handcart, bullock cart); from port, airport, air cargo complex or land customs station to an ICD/CFS for customs clearance; within notified areas of a state (state rules vary); for goods in the exempt annexure (Rule 138(14)) such as LPG for domestic supply, kerosene under PDS, postal baggage, jewellery, currency, used personal effects, and the de-oiled cake/other items listed; and for alcoholic liquor for human consumption, petroleum crude, HSD, petrol, natural gas and ATF (outside GST), and for exempt/nil-rated goods.
- Intra-State threshold varies by state — several states notified higher limits or intra-city exemptions. Check the state notification before answering for a specific state.
Part A, Part B and the generation process
- Part A (information): GSTIN of supplier and recipient, place of dispatch and delivery with PIN codes, invoice/challan number and date, value of goods, HSN code (minimum 4 digits up to ₹5 crore aggregate turnover and 6 digits above, since 2021 - the earlier rule was 2 and 4 digits), reason for transportation and transport document number.
- Part B (vehicle): mode of transport (road/rail/air/ship) and vehicle number, or the transport document number for rail, air or ship. Part A can be filled and the EWB left incomplete; the e-way bill is valid only once Part B is filled (except where the distance is up to 50 km within the state between consignor and transporter).
- Generation routes: portal, SMS, bulk upload tool, API integration with ERP, or through a GST Suvidha Provider; many firms auto-generate it along with the e-invoice.
- Consolidated e-way bill (Form GST EWB-02): one document listing multiple EWBs carried in one vehicle — a single document for a milk-run or a part-load truck. It does not replace the individual EWBs.
- Transporter change / transhipment: the transporter updates Part B with the new vehicle number; there is no limit on the number of vehicle updates within the validity period. Assigning to another transporter is done by the generator.
- Cancellation: within 24 hours of generation, and only if the goods have not been transported or verified in transit. After that, generate a fresh EWB against a credit note or sales-return documentation.
- Rejection: the other party can reject an e-way bill generated against its GSTIN within 72 hours of generation (or by delivery, whichever is earlier).
- Extension of validity: only within 8 hours before to 8 hours after expiry, stating the reason (natural calamity, law-and-order, accident, transhipment delay).
- What travels with the goods: the invoice/bill of supply/delivery challan and the EBN (printout, on the device, or mapped to an RFID device where the state mandates it).
Validity, verification and penalties
- Validity runs from the time Part B is first entered: 1 day for every 200 km (or part thereof) for normal cargo, and 1 day for every 20 km for over-dimensional cargo (ODC) and multimodal shipment involving at least one leg by ship. "One day" means midnight of the following day, not 24 hours.
- Blocking: e-way bill generation is blocked for a GSTIN that has not filed returns for two consecutive tax periods (Rule 138E); unblocking follows filing.
- Interception: a proper officer may intercept a conveyance and verify documents; the report goes in Form GST EWB-03 (Part A within 24 hours, Part B within three days), and the driver can record detention beyond 30 minutes in Form GST EWB-04.
- Penalty for moving goods without a valid e-way bill: under Section 122, ₹10,000 or the tax sought to be evaded, whichever is higher. Under Section 129 (detention and seizure), release of taxable goods requires payment of the penalty equal to 200% of the tax payable where the owner comes forward (or 50% of the value of goods less tax paid, if the owner does not), with exempt goods at 2% of value or ₹25,000, whichever is lower — figures as amended by the Finance Act 2021 from 1 January 2022.
- Minor mistakes (a spelling slip, a wrong PIN code where the locality is right, an error of one or two digits in the document number, a wrong 4-digit HSN where the first two are right, a one/two-digit error in the vehicle number) attract only a general penalty of ₹1,000 under CBIC Circular 64/38/2018-GST — not detention.
- Validity cannot be extended once more than 8 hours have passed after expiry; the practical fix is to unload under a delivery challan and generate a fresh EWB, which is why expired EWBs are treated as an operational failure.
E-invoice, documents and the paper trail
- E-invoicing (Rule 48(4)): notified taxpayers must report B2B invoices, export invoices, credit and debit notes to an Invoice Registration Portal (IRP), which returns an IRN (Invoice Reference Number), a digitally signed invoice and a QR code. The threshold has been lowered in stages and now covers taxpayers with aggregate turnover above ₹5 crore; B2C is outside it. Thresholds change — confirm the current one.
- An invoice without an IRN, where e-invoicing applies, is not a valid tax invoice — the buyer loses ITC and the e-way bill cannot be linked.
- Reporting an e-invoice with transport details can generate Part A of the e-way bill automatically, avoiding double entry.
- Tax invoice (Section 31, Rule 46): supplier and recipient details with GSTINs, serial number, date, HSN/SAC, description, quantity, taxable value, rate and amount of each tax, place of supply, and signature. Bill of supply for exempt supplies or composition dealers.
- Delivery challan (Rule 55) is used where no supply takes place — job work, goods sent on approval, liquid gas of unknown quantity, semi-knocked-down consignments in multiple vehicles, stock transfer within the same state and GSTIN.
- Consignment note / lorry receipt (LR): the GTA's own document evidencing receipt of goods for carriage and transfer of responsibility; distinct from the e-way bill.
- Bill-to / ship-to (three-party) transactions: two invoices and ordinarily one e-way bill (either leg), with the "bill to" and "ship to" fields filled correctly; the place of supply for the first leg follows Section 10(1)(b) of the IGST Act and is the buyer's principal place of business.
- Returns a logistics firm files: GSTR-1 (outward supplies), GSTR-3B (summary and payment), GSTR-9 (annual), with ITC visible in GSTR-2B. The portal also offers EWB-vs-GSTR-1 reconciliation reports, which officers use to flag mismatches.
Key points
- Supply - the taxable event under GST; mere movement of goods is not a supply.
- Destination-based tax - revenue goes to the consuming state; place of supply decides CGST+SGST versus IGST.
- Slabs since 22 Sept 2025 - 5%, 18% and a 40% demerit rate, plus nil/exempt and special rates; verify by HSN.
- GTA - road transporter that issues a consignment note; 5% without ITC, 18% with ITC, or 5% under reverse charge by the recipient.
- RCM - recipient pays the tax and may claim it as ITC; standard for freight paid by registered factories and companies.
- E-way bill - Form GST EWB-01 under Rule 138, required above ₹50,000 consignment value, intra-State thresholds vary by state.
- Part A vs Part B - A is the consignment data, B is the vehicle; validity starts only when Part B is entered.
- Consignment value - invoice value including GST but excluding exempt goods in the same vehicle.
- Validity - 1 day per 200 km (1 day per 20 km for ODC), counted to midnight of the next day.
- Extension window - 8 hours before to 8 hours after expiry, with a reason.
- Cancellation 24 hours, rejection 72 hours - after that only a credit note or fresh documentation works.
- EWB-02 - consolidated e-way bill for many consignments in one vehicle; individual EWBs still exist.
- Mandatory regardless of value - inter-State job work movement and inter-State handicraft movement by unregistered persons.
- Section 129 - detention; release on 200% of tax as penalty where the owner comes forward.
- Circular 64/38/2018 - listed minor errors carry only ₹1,000, not detention.
- Rule 138E - EWB generation blocked after two consecutive tax periods of non-filing.
- E-invoice IRN - mandatory above ₹5 crore turnover for B2B; no IRN means no valid invoice and no ITC.
- Delivery challan - the document for movement without supply (job work, stock transfer, approval).
Formulas and examples
Inter-State tax: IGST = Taxable value × full rate
Price including GST → taxable value = Gross ÷ (1 + rate); tax = Gross × rate ÷ (1 + rate)
Consignment value = Invoice value of taxable goods + GST thereon − value of exempt goods in the same conveyance
E-way bill validity (days) = ceil(Distance in km ÷ 200) for normal cargo; ceil(Distance ÷ 20) for ODC; expiry = midnight of the last such day
Net GST payable = Output tax − eligible ITC (IGST credit used first, then CGST/SGST as per Section 49A)
Section 129 penalty (owner comes forward) = 2 × tax payable on the goods
Example 1 — intra-State vs inter-State freight invoice. A 3PL in Pune bills ₹2,00,000 of warehousing and handling at 18%.
- To a Pune client (intra-State): CGST 9% = ₹18,000, SGST 9% = ₹18,000, invoice total = ₹2,36,000.
- To a Bengaluru client (inter-State): IGST 18% = ₹36,000, invoice total = ₹2,36,000 — the same outgo, but it is IGST and the credit chain differs.
Example 2 — GTA: 5% RCM vs 18% forward charge. A registered manufacturer pays freight of ₹1,00,000.
| Option | Tax | Who pays | ITC to manufacturer | Net cost to manufacturer |
|---|---|---|---|---|
| 5% under RCM | ₹5,000 | Manufacturer (self-invoice) | ₹5,000 | ₹1,00,000 |
| 5% forward charge, no ITC to GTA | ₹5,000 | GTA charges on invoice | ₹5,000 | ₹1,00,000 |
| 18% forward charge with ITC to GTA | ₹18,000 | GTA charges on invoice | ₹18,000 | ₹1,00,000 |
- With full ITC, tax is cost-neutral to the manufacturer in every case; it is cash-flow and the GTA's own ITC that differ. If the recipient were unregistered or exempt, the 5% option would be ₹13,000 cheaper.
Example 3 — consignment value and the ₹50,000 test. A truck from Surat carries taxable fabric worth ₹46,000 (5% GST = ₹2,300) and exempt raw silk worth ₹30,000.
- Consignment value = 46,000 + 2,300 = ₹48,300 (exempt goods excluded).
- 48,300 ≤ 50,000 → no e-way bill required for this movement, even though the invoice total is ₹78,300. Had GST been 18%, value = 46,000 + 8,280 = ₹54,280 → EWB required.
Example 4 — validity on a Chennai–Delhi run. Distance 2,180 km, Part B entered on 4 November at 18:00 hrs.
- Normal cargo: ceil(2,180 ÷ 200) = ceil(10.9) = 11 days. Day 1 ends midnight of 5 November, so validity runs to midnight of 15 November.
- Same consignment as ODC: ceil(2,180 ÷ 20) = 109 days, to midnight of 21 February.
- If the vehicle breaks down on 14 November, Part B is updated with the new vehicle number; if the EWB has expired, extension is possible only between 16:00 hrs on 15 November and 08:00 hrs on 16 November.
Example 5 — net GST payable and a Section 129 exposure. A logistics company has output tax of ₹9,00,000 (IGST ₹5,00,000; CGST ₹2,00,000; SGST ₹2,00,000) and eligible ITC of ₹6,50,000 (IGST ₹4,00,000; CGST ₹1,25,000; SGST ₹1,25,000).
- IGST: 5,00,000 − 4,00,000 = ₹1,00,000 payable. CGST: 2,00,000 − 1,25,000 = ₹75,000. SGST: ₹75,000. Total cash = ₹2,50,000.
- Separately, a consignment worth ₹8,00,000 taxable at 18% (tax ₹1,44,000) is intercepted without a valid EWB: penalty where the owner comes forward = 2 × 1,44,000 = ₹2,88,000 to release the goods — more, on one consignment, than the whole month's cash tax of ₹2,50,000, which is why the clerical step is treated as a control point.
Where it is used
- Despatch and billing desks in manufacturing (Tata Motors, Asian Paints, Dabur): generating the e-invoice and EWB before the truck leaves the gate, and matching gate pass to EBN.
- Road transport and part-load operators (VRL, TCI, Gati, Safexpress): consolidated e-way bills for part loads, Part B updates on transhipment at hubs, consignment note issue as a GTA.
- E-commerce and express (Flipkart, Amazon, Delhivery, Blue Dart, Ecom Express): bulk API generation, sales returns under fresh EWBs or credit notes, bill-to/ship-to for marketplace sellers.
- 3PL and warehousing (Mahindra Logistics, DHL Supply Chain, Allcargo): multi-state GST registrations, stock transfers between state warehouses on delivery challan plus EWB, ITC on rent and handling.
- EXIM and port movement: no EWB from port to ICD/CFS for clearance, zero-rated export supplies under LUT, and the IGST-refund route for exporters.
- Job roles: GST executive, billing and documentation assistant, transport coordinator, compliance analyst, control-tower executive, and audit roles reconciling EWB data against GSTR-1.
Interview questions
- Q: When is an e-way bill required? A: For motorised movement of goods where the consignment value exceeds ₹50,000, whether or not it is a supply; and irrespective of value for inter-State job work movement and inter-State handicraft movement by unregistered persons.
- Q: What is the difference between Part A and Part B? A: Part A carries consignment details — GSTINs, places, invoice, value, HSN, reason; Part B carries the mode and vehicle number, and validity begins only when Part B is entered.
- Q: How is validity calculated for 1,250 km of normal cargo? A: One day per 200 km, so ceil(1,250/200) = 7 days, each day ending at midnight of the following day from when Part B was first filled.
- Q: Who must generate the e-way bill if the supplier is unregistered? A: The recipient, if registered; failing that the transporter carrying the goods, using a Transporter ID if unregistered.
- Q: A truck carries taxable goods of ₹45,000 and exempt goods of ₹40,000 — is an EWB needed? A: Consignment value excludes exempt goods, so it is ₹45,000 plus GST on it; if that stays at or below ₹50,000, no e-way bill is required.
- Q: Explain reverse charge on GTA services. A: For specified recipients such as registered companies, factories and partnerships, the recipient pays 5% GST directly to the government instead of the transporter and can claim it as ITC.
- Q: What are the GST options available to a GTA? A: 5% without input tax credit, 18% with full credit under forward charge (option exercised for the financial year), or leaving the tax to the recipient under reverse charge at 5%.
- Q: The vehicle number on the e-way bill has one wrong digit — can the goods be detained? A: No; a one- or two-digit error in the vehicle number is a listed minor mistake under Circular 64/38/2018-GST attracting ₹1,000 penalty, not detention.
- Q: What happens if an e-way bill expires in transit? A: It can be extended only from 8 hours before to 8 hours after expiry with a reason; beyond that the goods must be covered by fresh documentation, or they risk detention under Section 129.
- Q: Why do stock transfers between two warehouses of the same company need documents? A: Inter-State transfers between different GSTINs are deemed supplies needing a tax invoice and EWB; same-state same-GSTIN movement needs a delivery challan plus EWB above the threshold.
- Q: What is the link between an e-invoice and the e-way bill? A: Reporting an invoice to the IRP returns an IRN and can simultaneously create Part A of the e-way bill, so only the vehicle details remain to be filled.
- Q: Why can't your firm generate e-way bills this week? A: Most likely Rule 138E blocking because GSTR-3B has not been filed for two consecutive tax periods; filing the returns restores generation.
Common mistakes
- Including exempt goods in consignment value, or excluding GST from it — both break the ₹50,000 test in opposite directions.
- Treating validity as 24-hour blocks instead of "midnight of the following day", and forgetting it starts at Part B, not Part A.
- Using 1 day per 20 km for normal cargo — that rate applies only to over-dimensional cargo and ship-leg multimodal movements.
- Confusing the e-way bill with the consignment note/LR: the EWB is a tax permit, the LR is the carrier's contract document.
- Assuming reverse charge removes the tax cost; it shifts who pays, and only a registered recipient recovers it as ITC.
- Quoting old 12% or 28% slabs after the 22 September 2025 rationalisation to 5%/18%/40%, or quoting a national intra-State threshold when states differ.
- Trying to cancel an e-way bill after 24 hours or after verification in transit, instead of issuing a credit note or fresh documents.
Related topics
- Customs clearance and EXIM documents · Incoterms · Transportation management and route planning · Warehousing operations and inventory documentation · Freight costing and logistics cost structure · Logistics information systems and ERP integration