RET191175
Invalid GST rate
What the portal shows
The rate entered is not valid according to the rate list
A tax rate on your invoice is not one of the notified GST slabs.
What it means
GST rates are drawn from a fixed set of notified slabs. Anything outside that list is rejected outright. The usual culprits are an effective rate produced by rounding, a rate entered as a decimal fraction rather than a percentage, or a rate that was correct before a notification changed it.
Common causes
- A computed effective rate such as 17.6% was written to the file instead of the notified 18%.
- The rate was entered as 0.18 instead of 18, or with a stray % character in a numeric field.
- A rate that changed by notification was not updated in the item master.
- Cess or a state levy was folded into the GST rate column.
How to fix it
- Pull the flagged lines and check each rate against the notified slabs.
- Ensure the value is a plain number in percentage terms — 18, not 0.18 and not "18%".
- Verify the rate actually applies to that HSN. A valid rate against the wrong HSN will pass this check and fail elsewhere.
- Fix the item master so the same rate is not re-sent next month.
This one is catchable before you upload
RET191175 is produced by something already present in your invoice data — our GST rate slab validation flags it before the file reaches the portal, so you fix it once instead of discovering it on upload day.
Related errors
Reviewed 13 August 2026. GSTN changes error wording and adds codes without notice, and this is general information rather than tax advice — confirm the current position on gst.gov.in or with your CA.