For regular transport in India, an e-way bill is valid for one day for every 200 km or part of 200 km: the official FAQ’s example gives a 310 km journey two days. The validity period starts with the first applicable transport detail entered in Part B—not when the bill is generated—and later Part B updates do not restart it. Exceptional delays may qualify for an extension, but the request window and the rule against moving goods on an expired bill are not the same thing.
What is the e-way bill validity rule?
The Goods and Services Tax e-Way Bill System’s current FAQ states that regular transport gets one day of validity for every 200 km, or part of 200 km. In the FAQ’s wording, “For every 200 KM one day is a validity period for EWB as per rule and for part of 200 KM one more day is added.” Its example is 310 km, which receives two days. This is the current operational calculation reflected in the FAQ accessed in October 2026.
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The system’s portal explains that Notification No. 94/2020–Central Tax changed the rate from 100 km per day to 200 km per day, effective 1 January 2021. Some older official Q&A and rules material still displays the former 100 km rate. For current routine calculations, use the current FAQ and the portal’s notification summary rather than combining the two rates.
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How do you calculate validity from distance?
Use the approximate distance entered for the consignment and count each 200 km block, including any partial block, as one day. In practical terms, divide the distance by 200 and round up to the next whole day. The official FAQ’s 310 km example confirms that the incomplete second block counts as another day.
| Approximate distance entered | Regular validity period |
|---|---|
| Up to 200 km | 1 day |
| 201–400 km | 2 days |
| 401–600 km | 3 days |
| 601–800 km | 4 days |
For example, 200 km falls within one block and receives one day, while 201 km crosses into a second block and receives two days. A distance of 310 km also receives two days. These are illustrations of the official regular-transport rule, not alternative rules for measuring elapsed hours.
The distance figure matters because validity is calculated from the approximate distance entered, not from a reader’s later estimate of actual mileage. The official generation API documentation says that when a PIN-to-PIN distance is unavailable, the system can alert the user and the generator remains responsible for providing the correct distance. Do not assume that the portal automatically determines every route or resolves an unavailable PIN-pair distance.
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- Check that the distance entered reasonably reflects the consignment’s intended journey.
- If the system cannot provide a PIN-to-PIN distance, take responsibility for entering the correct approximate distance rather than treating the alert as a confirmed route calculation.
- Use the live e-way bill portal for the consignment’s displayed validity and expiry; the distance formula alone does not establish the exact expiry timestamp.
When does the e-way bill validity period start?
The validity period begins when the first applicable transport detail is entered in Part B. For road movement, that is the first vehicle number entered. For rail, air or ship movement, it is the first transport document number entered. The current FAQ says that later Part B entries do not recalculate validity.
This distinction matters when a bill is generated well before a vehicle or transport document is assigned. Generation itself is not the validity start described in the FAQ; the relevant starting event is the first applicable Part B entry. Once that first entry starts the period, changing transport details later does not give the consignment a fresh period.
For example, if a road vehicle is entered and later replaced through a Part B update, the later vehicle entry does not restart the clock. The same principle applies when subsequent transport-document details are entered for another mode. Track the period from the initial applicable Part B entry, and check the bill’s live status instead of treating an update as a reset.
Can you extend an e-way bill’s validity?
An extension is intended for exceptional circumstances that prevent the consignment from reaching its destination within the existing validity period. The FAQ names natural calamity, law-and-order problems, delay during trans-shipment and an accident involving the conveyance as examples. The transporter is expected to provide a detailed reason; an extension should not be treated as an automatic addition of travel time for an ordinary delay.
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1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsThe current API documentation identifies who may request an extension and what the system requires. The current transporter may make the request. If no transporter has been assigned, the generator may update the bill. The request window runs from eight hours before expiry until eight hours after expiry.
Information needed for the request
The API describes a request containing the e-way bill number, current place and PIN, remaining distance, reason for extension, and transport details appropriate to the mode. Road transport requires vehicle details; other modes require the transport document number. The extension process cannot be used to change Part A.
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- Confirm the bill’s current status and expiry in the live system, and establish whether the request falls within the eight-hour-before to eight-hour-after window.
- Have the current transporter submit the request; if no transporter is assigned, the generator may update it as described by the API.
- Enter the present location and PIN, remaining distance, a detailed reason for the delay and the relevant transport detail: vehicle information for road, or a transport document number for another mode.
- Review the system’s response and the revised bill status before relying on an extension for further movement.
The API says that the system grants validity based on remaining distance, which cannot exceed the original distance. It also documents a system restriction against extending validity beyond 360 days from generation. Treat that 360-day figure as a documented system validation, not as a substitute for interpreting the current legal text. For a legal question about eligibility or the effect of a system restriction, consult the current consolidated CGST Rules or appropriate tax advice.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What if the e-way bill has expired?
The FAQ warns that goods are not supposed to be moved after validity expires. It also describes extension in exceptional circumstances and the system’s extension option around expiry. Read those points together: the API’s eight-hour-after-expiry request window is a technical window for submitting a request, not a general permission to continue ordinary movement on an expired bill.
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If a delay occurs, check the bill and pursue any eligible extension within the stated system window rather than assuming that a later Part B entry, a new vehicle number or the passage of only a few hours restores validity. The first Part B entry starts the clock, and later Part B entries do not recalculate it. If the bill is already expired, do not treat the technical ability to submit an extension request as proof that moving the goods is permitted. Confirm the applicable status and requirements with the live portal and current rules before taking action.
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Does the same distance rule apply to over-dimensional cargo?
Do not apply the regular-transport rate to over-dimensional cargo (ODC) without checking the current consolidated rules. An older official Q&A mentions one day for every 20 km or part thereof for ODC, but the current FAQ used for the regular calculation does not settle the present ODC rate. That older text is not enough to establish a current operational rule.
If a consignment is classified as ODC, verify the current legal provision and live system treatment for that category before calculating validity. The 200 km rule and examples in this article address regular transport; they should not be read as confirmation of an ODC calculation.
How should you handle conflicting official information?
Official material may not all reflect the same update. The current e-Way Bill System FAQ gives the regular rate of 200 km or part thereof per day, and the portal attributes the change to Notification No. 94/2020–Central Tax effective 1 January 2021. Older official Q&A and rules material still showing 100 km per day is stale for current routine operational guidance; do not average the old and current rates or use them interchangeably.
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchThe API describes system behaviour, such as the extension request window, required fields and distance validation. Those operational details help explain what the portal accepts, but the API is not a legal interpretation of every circumstance. For an unusual case, a disputed extension or ODC treatment, distinguish what the portal currently permits from what the current legal text requires.
Quick Recap
- For ordinary distance calculations, use the current FAQ’s 200 km-per-day rule and the portal’s notification summary.
- For an individual bill, check the live portal for its validity, expiry and current status.
- For extension mechanics, use the current API documentation and provide the stated journey details.
- For uncertain categories or legal interpretation, check the current consolidated rules rather than relying on older FAQ text or a system validation alone.
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