GST & Compliance Errors in Tally Prime – Simple Fix Guide
📅 18 Feb 2026
📂 General
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GST-related errors in Tally Prime can create serious problems like:
Wrong tax calculation
Mismatch in GSTR reports
Rejected e-invoices
Failed e-way bills
Most of these issues happen due to incorrect configuration, not software faults.
This guide explains the problem in simple language and helps you fix it.
What Do GST & Compliance Errors Mean?
Simple meaning:
✔ Tax values don’t match
✔ GST returns show incorrect data
✔ Portal rejects invoices/e-way bills
Common Errors Users See
Why Do These Errors Happen?
Think of GST setup like filling a form.
If details are wrong → Reports & filings become wrong.
Most common causes:
✔ Wrong GST rate selection
✔ Incorrect HSN / SAC code
✔ Wrong GSTIN of party
✔ Wrong tax ledger mapping
✔ Incorrect voucher type setup
✔ Duplicate / missing entries
✅ Step-by-Step Solutions
1️⃣ Check GST Rate Selection
Wrong rate = Wrong tax calculation.
Steps:
Open the voucher
Check tax rate applied
Confirm correct GST slab
✔ Example mistakes:
2️⃣ Verify HSN / SAC Codes
Incorrect codes cause portal rejection.
Steps:
Open Stock Item / Ledger
Check HSN/SAC field
Confirm valid & correct code
✔ Missing HSN → Filing errors
✔ Wrong digits → Rejection
3️⃣ Check Party GSTIN
Incorrect GSTIN = Compliance failure.
Steps:
Open Party Ledger
Verify GSTIN carefully
✔ Common mistakes:
Typing errors
Wrong state GSTIN
Using old GSTIN
4️⃣ Verify Tax Ledgers
Improper mapping affects reports.
✔ Ensure correct GST ledger selected
✔ Avoid mixing CGST/SGST/IGST wrongly
✔ Example:
? Interstate sale → IGST
? Intrastate sale → CGST + SGST
5️⃣ Review Voucher Entries
Mismatch often caused by entry errors.
✔ Wrong voucher type
✔ Duplicate invoices
✔ Incorrect taxable value
6️⃣ E-Invoice Rejection Fix
Common reasons:
| Problem | Meaning |
|---|
| Invalid HSN | Wrong/missing code |
| GSTIN Error | Incorrect GSTIN |
| Tax Mismatch | Rate/value mismatch |
| Duplicate IRN | Same invoice uploaded |
✔ Correct entry → Generate again
7️⃣ E-Way Bill Errors
Common causes:
✔ Wrong transporter details
✔ Incorrect distance
✔ Missing vehicle number
✔ Invalid document value
⚠ Common Problems & Easy Fixes
| Problem | Simple Fix |
|---|
| Wrong GST amount | Check GST rate |
| Portal rejection | Verify HSN & GSTIN |
| GSTR mismatch | Review vouchers |
| IGST/CGST confusion | Check party state |
| Filing errors | Check missing data |
? Important Precautions
✔ Never ignore GST mismatches
✔ Always verify before filing
✔ Avoid last-minute bulk corrections
✔ MOST IMPORTANT:
? Backup data before major corrections
✅ Best Practices for Error-Free GST
✔ Correct Setup From Beginning
✔ Accurate GST rates
✔ Valid HSN/SAC codes
✔ Proper ledger configuration
✔ Regular Reconciliation
✔ Compare books vs portal
✔ Identify mismatch early
✔ Validate Masters Carefully
✔ Party Ledgers
✔ Stock Items
✔ Tax Ledgers
✔ Avoid Manual Guesswork
✔ Confirm rates with accountant
✔ Use official GST references
✔ Periodic Review
✔ Check for missing/incorrect codes
✔ Verify tax classification
Short Conclusion
Most GST & compliance errors are caused by:
✔ Incorrect entries
✔ Wrong configuration
✔ Missing details
Careful setup + Regular checking = Smooth GST Filing
If unsure → Consult GST professional / accountant.
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