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From GST to bank, every rupee accounted for

Indian finance teams reconcile more sources than most: books, banks, payment gateways and tax returns. NexaSI matches them every day and explains each mismatch.

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What your suppliers filed with GST, set line by line against the same bills in your books. Four lines match; one is short, and is marked for you to chase. Your books GST ₹

Four checks that save you real money

  • GSTR-2B

    Claim all the GST you paid

    You can only claim GST on a bill if your supplier reported it too. We check every bill and show the ones that don’t match.

  • GSTR-1

    Report your sales correctly

    We check that the sales you report to GST match the invoices you sent, so your customers can claim their GST and pay you on time.

  • Small suppliers

    Pay small suppliers on time

    Pay a registered small business late and you can’t count that bill against your tax. We warn you before the deadline.

  • Customer payments

    Know which invoices are paid

    Customers keep back some tax, and the bank shows many payments as one. We work out which invoices each payment covers.

Overnight, in rupees.

One demo night on the connectors that are live in India today: Microsoft 365 and Zoho Books. GSTR-2B, bank statements and Razorpay join the same run as they roll out.

  • Cleared on its own
  • Needs a person
  • Money stopped
Overnight run, Tuesday (IST)
  1. Read 1,184 emails and 296 attachments in the finance inbox (Microsoft 365) Read
  2. 204 supplier invoices matched to bills in Zoho Books Matched
  3. Every supplier invoice tracked against its due date Tracked
  4. 3 invoices from registered micro and small suppliers fall due by Friday, ₹4,86,200 in total. Flagged to pay first Pay first
  5. Nilgiri Foods invoice 812 says ₹1,19,271. The bill in Zoho Books says ₹1,12,400: the freight line is missing Fix the bill
  6. Vasant Logistics invoice 903, ₹54,000, arrived by email but isn’t booked yet Book it
  7. Morning brief ready. 3 payments to prioritise, 2 bills to sort out. Your turn

GSTR-2B against your books, with the reason for every gap

Matched, amount mismatch, missing on either side, or a bill without a GSTIN. Filter to the ones that cost you credit and send them to the vendor.

  1. GSTR-2B

    What your suppliers filed, invoice by invoice.

    Nilgiri Foods · 812 ₹1,19,271

  2. Your books

    The same bill as it sits in Zoho Books.

    Bill 812 ₹1,12,400

  3. Mismatch, with the reason

    Matched, amount mismatch, missing on either side, or a bill without a GSTIN.

    Diff ₹6,871 Freight line missing

  4. Supplier follow-up

    Filter to the ones that cost you credit and send them to the vendor.

    In books, not in 2B 174 bills · ₹20.9L

GST reconciliation: GSTR-2B vs books

1 Apr 2025 to 31 Mar 2026 · Click a status to see its invoices

Show invoices by status
Invoice Party Date GSTR-2B Books Diff Why
745 Sahyadri Hospitality 27AA•••••1Z4 19 Jan 26 ₹3,274 ₹3,274 — Invoice number and amount agree between GSTR-2B and books.
1188 Kaveri Packaging 29AD•••••1Z7 6 Feb 26 ₹48,560 ₹48,560 — Matched on GSTIN, invoice number and amount.
2207 Deccan Office Supplies 36AF•••••1Z1 12 Mar 26 ₹9,912 ₹9,912 — Matched. Input credit can be claimed in full.
812 Nilgiri Foods Pvt Ltd 33AB•••••1Z9 3 Feb 26 ₹1,19,271 ₹1,12,400 ₹6,871 Amounts differ. The bill in books is missing the freight line.
4410 Malabar Spices Co 32AG•••••1Z5 14 Feb 26 ₹27,140 ₹24,140 ₹3,000 Keying error: ₹27,140 was booked as ₹24,140.
377 Coastal Freight Lines 27AH•••••1Z8 2 Mar 26 ₹81,900 ₹86,900 ₹5,000 Books show more than the supplier filed. Check for a credit note.
903 Vasant Logistics 29AC•••••1Z2 21 Feb 26 ₹54,000 — — In GSTR-2B but not booked. Input credit is at risk until the bill is recorded.
1562 Aravalli Electricals 08AJ•••••1Z3 9 Mar 26 ₹1,36,400 — — Filed by the supplier, but no bill in books or in the inbox. Ask the supplier for a copy.
88 Hooghly Prints 19AK•••••1Z6 25 Mar 26 ₹12,980 — — The bill is sitting in the finance inbox, unbooked. Book it to claim the credit.
6031 Konkan Traders 27AL•••••1Z2 11 Jan 26 — ₹2,14,600 — The supplier hasn't filed this invoice. Credit is blocked until they do.
219 Satpura Engineering 23AM•••••1Z9 28 Feb 26 — ₹64,350 — Filed under a different GSTIN. Ask the supplier to amend their GSTR-1.
7702 Brahmaputra Tea Estates 18AN•••••1Z4 17 Mar 26 — ₹18,720 — Filed late. Expected in next month's GSTR-2B.
BL-114 Sharma Repairs No GSTIN 4 Feb 26 — ₹8,850 — No GSTIN on the bill, so no input credit. Request a corrected invoice.
BL-131 City Courier Services No GSTIN 19 Feb 26 — ₹2,360 — The supplier may be unregistered. Confirm before claiming credit.
BL-140 Green Leaf Caterers No GSTIN 8 Mar 26 — ₹15,400 — The GSTIN is missing from the bill but appears in the supplier's email signature. Update the bill.

Showing 3 of 1,512 matched invoices.

Showing 3 of 71 amount mismatches.

Showing 3 of 382 invoices missing from books.

Showing 3 of 174 bills missing from GSTR-2B.

Showing 3 of 40 bills without a GSTIN.

GST reconciliation.

GSTR-1: make sure every sale you report is right

GSTR-1 is where you tell GST what you sold. If an invoice is missing or wrong there, your customer can’t claim their GST, and they may hold your payment until it’s fixed. NexaSI checks every invoice before you file.

  1. Your invoices

    Every sales invoice you sent, from Zoho Books.

    Kaveri Retail · 1047 ₹2,36,000

  2. Your GSTR-1

    The sales you are about to report to GST.

    Invoice 1047 Not in GSTR-1

  3. Mismatch, with the reason

    A missing invoice, a wrong amount, or the wrong customer GSTIN.

    Missing from GSTR-1 Add it before filing

  4. Your customer gets their credit

    Once filed, the invoice shows up in their GSTR-2B.

    Kaveri Retail Can claim ₹36,000 GST

GST reconciliation: GSTR-1 vs invoices

1 Apr 2025 to 31 Mar 2026 · Click a status to see its invoices

Show invoices by status
Invoice Customer Date GSTR-1 Books Diff Why
1012 Godavari Mart 37AB•••••1Z3 8 Jan 26 ₹42,480 ₹42,480 — Invoice number, GSTIN and amount agree.
1031 Shivalik Hotels 05AC•••••1Z8 22 Jan 26 ₹1,18,000 ₹1,18,000 — Matched. Your customer can claim this GST in full.
1066 Narmada Distributors 24AD•••••1Z1 4 Mar 26 ₹7,670 ₹7,670 — Matched on GSTIN, invoice number and amount.
1024 Chambal Agro 23AE•••••1Z5 17 Jan 26 ₹59,000 ₹65,490 ₹6,490 Reported less than the invoice. Correct it in your next GSTR-1.
1049 Thar Textiles 08AF•••••1Z2 9 Feb 26 ₹31,860 ₹38,160 ₹6,300 Typing error when filing: ₹38,160 was reported as ₹31,860.
1058 Sundarban Seafoods 19AG•••••1Z7 26 Feb 26 ₹2,12,400 ₹2,00,600 ₹11,800 A credit note in books wasn't reported. Add it to GSTR-1.
1047 Kaveri Retail 29AH•••••1Z4 12 Feb 26 — ₹2,36,000 — Not reported. Your customer can't claim ₹36,000 GST until you add it.
1053 Malwa Pharma 23AJ•••••1Z6 20 Feb 26 — ₹88,500 — Raised after the return was filed. Add it to next month's GSTR-1.
1070 Kosi Builders 10AK•••••1Z9 18 Mar 26 — ₹4,72,000 — Left out of the upload. Report it before the 11th.
1039 Vindhya Motors 23AL•••••1Z3 3 Feb 26 ₹1,47,500 — — Reported, but the invoice was cancelled in books. Issue a credit note.
1044 Palar Ceramics 33AM•••••1Z1 7 Feb 26 ₹25,960 — — Reported twice by mistake. Remove the duplicate.
1061 Aravali Stone 08AN•••••1Z5 1 Mar 26 ₹1,65,200 — — No matching invoice in books. Check if it was booked under another number.
1028 Tapti Foods 27AP•••••1Z2 19 Jan 26 ₹53,100 ₹53,100 — Filed under the customer's old GSTIN. They won't see it in their GSTR-2B.
1050 Mahanadi Steel 21AQ•••••1Z8 13 Feb 26 ₹3,06,800 ₹3,06,800 — One digit off in the GSTIN. Amend it so the credit reaches your customer.
1068 Periyar Rubber 32AR•••••1Z4 11 Mar 26 ₹21,240 ₹21,240 — GSTIN of the customer's other branch. Use the one on their order.

Showing 3 of 2,046 matched invoices.

Showing 3 of 38 amount mismatches.

Showing 3 of 57 invoices missing from GSTR-1.

Showing 3 of 12 reported invoices missing from books.

Showing 3 of 23 invoices with the wrong GSTIN.

GSTR-1 reconciliation.

Built for the Indian finance stack

Zoho Books, Tally and SAP, with bank statements and Razorpay.

Working with a CA firm? See our design partner programme.

  • Zoho Books
  • SAP
  • Tally
  • Microsoft 365
  • Gmail
  • Razorpay
  • ICICI Bank
  • RBL Bank

Find out what your inbox is hiding

Book a free leakage audit See how it works

Your leakage audit

  1. 1Reads your inbox
  2. 2Checks books and bank
  3. 3Shows you the money
  • Already paid Pinecrest PM-1190 £7,343.66
  • Says paid Kestrel, not in the bank £9,400
  • No bill Payments with no bill 15 of 52
Money caught £16,743.66