PTAS Finsuite · GST Compliance

Stop chasing vendors on the 19th. Reconcile GST the day 2B drops.

PTAS Finsuite GST Compliance reconciles your purchase register against GSTR-2A and 2B the moment GSTN refreshes them. It chases vendors for the invoices they forgot to upload, prepares GSTR-1 and 3B from the same data, and files when you approve. No month-end panic. No ITC quietly written off.

2–5% ITC typically recovered · GSTN-connected GSP + ASP · ISO 27001–aligned
Built for finance teams that actually close on time
GSTN-connected GSP + ASP ISO/IEC 27001-aligned ISO 9001-aligned SAP · Tally · Oracle · Dynamics
What manual GST actually costs

The cost of manual GST is not the accountant. It is the ITC you quietly wrote off.

Most teams benchmark GST compliance on filing fees and software cost. The expensive number is the input tax credit that never made it onto your 3B because the vendor uploaded late, uploaded with a typo, or never uploaded at all.

2–5%

Of eligible ITC is typically written off

That is the gap teams find on their first proper 2B reconciliation. For a business posting ₹30 crore of eligible inward supplies a month, two percent is ₹60 lakh of ITC disappearing silently. The vendors are not stealing it. Nobody is asking them to upload it.

PTAS AI client data, first-cycle recovery, FY25–FY26.
14 days

Average month-end close with manual 2A matching

When the match is done in Excel, every month ends with the senior accountant on WhatsApp at 11pm trying to get a vendor to file. By the 19th, half the ITC is decided by whoever shouted loudest. It is not a system. It is a hostage situation.

Common finding in GST compliance audits.
₹10,000+

Minimum penalty for a missed GSTR-3B

Late fees start at ₹50 per day (₹20 for nil returns) and stack until filing. Interest on unpaid output tax runs at 18% per annum. For businesses with multiple GSTINs across states, one missed filing in one state can cascade into notices across the rest.

Section 47 of CGST Act; interest under Section 50.
Beyond GSTIN-level totals

2A versus books at GSTIN level catches the easy half. Here is what it misses.

Most tools line up vendor-wise totals from 2A against vendor-wise totals from the purchase register, call it reconciliation, and stop. That is fine until a vendor uploads the right total with the wrong invoice number, or splits one invoice into two, or files under a sister GSTIN. Your total matches. Your ITC still breaks during assessment.

Invoice-level matching, four ways

Finsuite matches each line on four signals: GSTIN, invoice number (with tolerance for slashes, hyphens, and year prefixes), invoice date (±3 days default, configurable), and taxable value. A row is matched only when all four line up. Everything else goes to review with a reason code you can read.

  • Exact match. Books invoice and 2B invoice agree on all four fields. ITC auto-accepted.
  • Fuzzy match. Invoice number differs by punctuation or prefix, everything else agrees. ITC accepted with a soft flag for audit.
  • In books, not in 2B. Vendor has not uploaded. Finsuite emails them with the invoice reference before the return deadline.
  • In 2B, not in books. Usually an invoice your AP team missed, or a sister entity's invoice filed against the wrong GSTIN. Worth investigating either way.
  • Value mismatch. Everything matches except the taxable value. Common with reverse-charge entries or rate reclassifications. Sent to the tax team.
How it works

From ERP ledger to filed return in six steps.

Every step writes to the same audit log. When your internal auditor asks why a specific invoice cleared or why ITC was deferred to next month, the reason is one click away, not in someone’s inbox.

  1. Sync ledgers

    Finsuite pulls the purchase and sales registers from your ERP on a schedule or in real time. Works with SAP BSEG, Oracle AP_INVOICES_ALL, Tally day books, and REST feeds from in-house ledgers.

  2. Fetch 2A and 2B

    The moment GSTN refreshes 2B (typically around the 14th), Finsuite downloads it along with the live 2A. A snapshot is archived so you can reopen the exact view later during an assessment.

  3. Reconcile at invoice level

    Four-way matching runs on GSTIN, invoice number (with punctuation tolerance), date, and taxable value. Fuzzy matches get a flag, not a silent pass. Everything is explainable.

  4. Chase vendors

    Invoices on your books but missing from 2B trigger an email to the vendor with the exact reference, amount, and period. Replies land in the same queue. Escalation rules nudge repeat offenders.

  5. Prepare GSTR-1 and 3B

    GSTR-1 builds from the sales register. GSTR-3B builds from the matched purchase register and your output liability. Every number links back to the source invoice.

  6. File with GSTN

    One click files the return through the GSP connection. The ARN comes back, the evidence is archived, and the month is closed in the audit log. Next month starts already reconciled up to date.

Capabilities

What Finsuite GST does, without you asking.

The features below run on every GSTIN by default. Nothing listed here is a paid add-on.

2A and 2B reconciliation

Invoice-level matching, not GSTIN-level totals. Fuzzy logic on invoice numbers, configurable date tolerance, and reason codes on every mismatch.

  • Four-way match on GSTIN, invoice, date, and value
  • 2A snapshots archived for audit
  • Reason codes: missing, typo, value break, wrong GSTIN
  • Carry-forward tracker across periods

E-invoicing (IRN + QR)

Every B2B invoice crossing the notified threshold gets an IRN and signed QR code pushed back to your ERP within seconds of posting.

  • Real-time IRN from NIC IRP
  • Signed QR embedded into the invoice PDF
  • Cancellation window tracked and enforced
  • Bulk backfill for historical invoices

E-way bill automation

Generated from the same invoice the IRN came from. Part A and Part B fill from transporter data; extensions and cancellations are handled in-flow.

  • Single and consolidated e-way bills
  • Validity monitoring with extension alerts
  • Part B update from transporter portal or API
  • Cancel and regenerate without duplication

Vendor follow-up workflow

For invoices missing from 2B, Finsuite emails the vendor with specifics — not a generic reminder. Replies come back into the same reconciliation queue.

  • Invoice-specific reminder templates
  • Escalation tiers by days overdue
  • Vendor response portal (no login required)
  • Watchlist for chronic non-uploaders

GSTR-1 preparation

Auto-populates from the sales register. B2B, B2C, export, SEZ, credit notes, and amendment tables all map from the same dataset your ERP already holds.

  • B2B, B2C-large, B2C-small sections
  • Export with or without IGST, SEZ-supplies
  • CDNR, CDNUR, amendments, advances
  • HSN summary auto-rollup

GSTR-3B preparation

Output liability pulls from sales, ITC pulls from the matched purchase register, the offset runs, and the cash ledger position shows before you approve.

  • ITC availed, reversed, reclaimed, ineligible
  • RCM self-liability tracked separately
  • Electronic credit and cash ledger positions
  • Offset simulation before filing

Annual returns (9 and 9C)

GSTR-9 rolls up the twelve monthly filings, 9C reconciles with the audited financials. Differences are pre-highlighted so the auditor reviews, not rebuilds.

  • Twelve-month roll-up with change log
  • Books-to-returns reconciliation, line by line
  • HSN summary with quantity and value
  • CA sign-off workflow for 9C

GSTIN & HSN validation

Vendor GSTINs are validated live against GSTN. HSN and SAC codes are checked against the current master, including rate changes inside the period.

  • Live GSTIN status lookup
  • HSN 4, 6, 8-digit validation by turnover slab
  • SAC code master for services
  • Rate-change alerts within active periods

Reverse charge & ISD

RCM liability is calculated separately, posted to your books, and reflected in the 3B. ISD distributions flow to recipient GSTINs with an audit trail.

  • RCM applicability engine (services, imports, unregistered)
  • Self-invoice generation for RCM
  • ISD credit distribution across GSTINs
  • CMP-08 support for composition dealers
Returns coverage

Every return your tax team touches.

If a return is listed here, it prepares and files from Finsuite. If it is not, it is because nobody on our client base has asked for it yet — and that list is shorter every quarter.

Return Who files What Finsuite does Filing
GSTR-1 Regular taxpayers Auto-prepares B2B, B2C, export, SEZ, CDNR, amendments, and HSN summary from your sales register. Yes
GSTR-1A Regular taxpayers Captures amendments to GSTR-1 during the period, before 3B is filed. Yes
GSTR-2A Regular taxpayers (read) Live fetch, invoice-level reconciliation against your purchase register, snapshot archived for audit. Reconcile
GSTR-2B Regular taxpayers (read) Auto-fetched on refresh, four-way matched, vendor follow-up triggered on gaps. Reconcile
GSTR-3B Regular taxpayers Builds from matched 2B plus output liability. Offset simulation runs before you approve. Yes
GSTR-6 Input Service Distributor ISD credit distribution with recipient-wise breakup and audit trail. Yes
GSTR-7 TDS deductors under GST Deductor returns with deductee-wise tax details. Certificates auto-issued. Yes
GSTR-8 E-commerce operators TCS collected on supplies through the platform, with supplier-wise summary. Yes
GSTR-9 Regular taxpayers (annual) Rolls up twelve months with change log. Amendment delta is highlighted. Yes
GSTR-9C Taxpayers above threshold Reconciles audited financials with GSTR-9. CA sign-off workflow included. Yes
CMP-08 Composition dealers Quarterly statement of self-assessed tax for the composition scheme. Yes
ITC-04 Principals sending goods for job work Tracks goods sent, received back, and scrapped at the job worker. Yes
NIL returns Dormant GSTINs Auto-filed via SMS/OTP flow for inactive periods across registrations. Yes
ERP integration

The sync is the boring part. We made it boring on purpose.

Finsuite reads purchase and sales registers from your ERP directly. No CSV exports, no shared folders, no overnight batch that fails quietly. Native connectors for the systems below; REST for everything else.

SAP ECC + S/4HANA
Oracle Fusion + EBS
Dynamics 365 F&O + BC
NetSuite Native SuiteApp
Tally Prime Connector
QuickBooks Online
Xero Direct API
Zoho Books Direct API
SAP Business One HANA + SQL
Custom ERP REST + webhook
Running something in-house that is not listed here? We have built connectors for homegrown ledgers in two to three weeks. Share your schema, we will quote on scope before you commit.
Where Finsuite GST is in production

Different industries, same 2B problem.

The patterns change — vendor mix, volume, HSN spread — but the reason ITC leaks is the same everywhere: invoices on books, not in 2B.

Manufacturing Multi-state, high vendor count
Retail & FMCG Branch GSTINs, RCM-heavy
Logistics E-way bills at scale
Pharma HSN complexity, audit load
Professional services Place-of-supply mix
Financial services ISD, exempt supplies
E-commerce TCS, marketplace fees
Construction & EPC Long cycle, running bills
Tech & SaaS Cross-border + SEZ
Hospitality Multi-rate, composition
Agri & food processing Nil-rated, reverse charge
Engineering & auto Job work, ITC-04

Finsuite GST in numbers

100%
Invoice-level matching
2–5%
ITC recovered, first cycle
40+ hrs
Saved per month, per accountant
<5 min
From approval to filed ARN
Security & residency

Your ledger is not a screenshot. It should not be stored like one.

Finsuite treats your purchase register, sales register, and 2B data the same way we treat invoice images in DocPro — encrypted, region-pinned, and auditable at the row level.

Encryption everywhere

TLS 1.3 in transit, AES-256 at rest. Tenant keys are segregated, and customer-managed keys are available for enterprise contracts that need them.

Data stays in India

AWS ap-south-1 or ap-south-2 by default. Azure India Central and Google asia-south1 on request. Your ledger never leaves the country, and we have the logs to prove it.

ISO 27001-aligned

Controls mapped to ISO/IEC 27001:2022. Annual pen tests, quarterly access reviews, SOC-grade change management. DPA signed before the first ledger sync.

Audit-ready by design

Every 2B snapshot, every vendor email, every approval and filing decision lands in an immutable audit log. When an assessment officer asks, the answer is not a reconstruction — it is a query.

Single-tenant and on-prem

SaaS multi-tenant, single-tenant in your cloud account, or fully on-premise with an air-gap option. Same codebase. Enterprise deployments pick the topology that matches their risk appetite.

Role-based access

Granular roles: preparer, approver, filer, auditor, read-only. SSO via SAML and OIDC. API tokens scoped per GSTIN or per return type.

Frequently asked

The questions that come up on every first call.

If yours is not here, the team answers live. Nobody on the other end of a sales call has the patience for a slide deck about reconciliation, so we skipped making one.

How is GSTR-2B reconciliation in Finsuite different from what Tally or the GST portal already does?

The GST portal shows you 2A and 2B. It will not compare them to your books. Tally and most native ERP tools compare totals at the GSTIN level, not at the invoice level, which means a vendor uploading the right total against the wrong invoice number looks fine until an assessment officer disagrees. Finsuite matches every line — GSTIN, invoice number (with punctuation tolerance), date, taxable value — and when a line breaks, it knows which line broke and why. For missing uploads, it emails the vendor with the specific reference so the ITC can be recovered before the return deadline, not after.

How much ITC do teams typically recover in the first cycle?

Between 2 and 5 percent of total eligible ITC, on average across our client base. That number sounds small until it meets your monthly purchase value. For a mid-size manufacturer posting ₹30 crore of inward supplies per month, two percent is ₹60 lakh of ITC being written off silently. The first cycle usually pays for the software for the year, which is the only compliance-tool ROI we have ever felt comfortable writing on a slide.

Is Finsuite a GSP or an ASP?

Both. Finsuite is an ASP — the application you log into, where reconciliation, vendor follow-up, and return preparation happen. It talks to GSTN through a certified GSP for filing, IRN generation, and e-way bills. You do not sign a separate contract with a GSP; that relationship sits with us.

Does Finsuite handle e-invoicing and e-way bills?

Yes. Every B2B invoice above the notified threshold gets an IRN and signed QR code pushed back to your ERP within seconds of posting. E-way bills generate from the same invoice: Part A fills from the invoice data, Part B fills from transporter data you pass in through the API or the transporter portal. Cancellations inside the allowed window, extensions, consolidated e-way bills for multi-stop trips — all handled in-flow. Bulk backfill is available for historical invoices if you are migrating from another platform.

Which ERPs and accounting systems does Finsuite GST connect to?

Native connectors ship for SAP (ECC and S/4HANA), Oracle Fusion and E-Business Suite, Microsoft Dynamics 365 (F&O and Business Central), NetSuite, SAP Business One, Tally Prime, QuickBooks Online, Xero, and Zoho Books. Anything outside that list runs over REST APIs and webhooks. Custom connectors for in-house ERPs usually take two to three weeks; share the schema and we will quote before you commit.

What returns does Finsuite cover?

Monthly and quarterly: GSTR-1, GSTR-1A, GSTR-3B, and 2A/2B reconciliation. Annual: GSTR-9 and GSTR-9C. Special cases: GSTR-6 for ISD, GSTR-7 for TDS deductors under GST, GSTR-8 for e-commerce operators, CMP-08 for composition dealers, ITC-04 for job-work movements, and nil returns for dormant GSTINs. If you file something outside this list, tell us on the first call — the list gets longer every quarter.

Where is our GST data stored, and who can see it?

Indian AWS regions by default (ap-south-1 or ap-south-2). Azure India Central and Google asia-south1 are available on request. Data never leaves the country unless you explicitly set up a cross-region export, which is off by default. Access inside Finsuite is role-based — preparer, approver, filer, auditor, read-only — with SSO via SAML or OIDC for enterprise tenants. We sign a DPA before the first ledger sync. For regulated workloads, Finsuite runs single-tenant in your own cloud account or fully on-premise with an air-gap option.

How does Finsuite handle reverse charge, ISD, and composition dealers?

Reverse charge: the applicability engine flags inward supplies that attract RCM — specified services, imports, purchases from unregistered vendors — calculates the self-liability, generates the self-invoice, posts to books, and reflects in the GSTR-3B. Input Service Distributor: credit is distributed across recipient GSTINs based on turnover or a fixed allocation, with the audit trail showing how each rupee got where. Composition dealers: CMP-08 quarterly and GSTR-4 annually, with guardrails on ineligible supplies. Everything runs from the same ledger sync as regular returns — no separate module to license.

How long does rollout take?

Most clients run their first live 2B reconciliation inside the first week — we just need read access to the purchase register and GSTN credentials. A full rollout including ERP integration, sales register sync, e-invoicing, e-way bills, vendor follow-up workflows, and returns filing usually lands between three and six weeks. Air-gapped deployments, custom ERP connectors, or multi-entity/multi-GSTIN setups with complex ISD allocation can add two to four weeks.

How does Finsuite GST relate to PTAS Finsuite AP Automation?

They use the same purchase register. AP Automation is about getting every vendor invoice captured, matched against PO/GRN/contract, approved, and posted into your ERP. GST Compliance takes that posted data and makes sure the GST side works — IRN on the outbound, 2B match on the inbound, returns prepared, filed, and archived. Run both and the invoice your AP team cleared this morning is already reconciled against 2B by the afternoon. You can license either one standalone; about half our clients start with one and add the other within a year.

How is Finsuite GST priced?

Per GSTIN, with slabs based on invoice volume and the return types you file. Enterprise contracts bundle multi-GSTIN, e-invoicing and e-way bill throughput, a named customer engineer, priority SLAs, and customer-managed keys. Send us your GSTIN count, monthly invoice volume (inward and outward), and which returns you file — we will quote within a week.

Send us last quarter’s purchase register and 2B.

We will run the reconciliation and send back the gaps — matched, missing, value-broken, in-2B-not-in-books — with the ITC amount sitting on each. No slide deck. Just the number you are leaving on the table.