VAT / sales tax reconciliation
VAT and sales tax reconciliation software for finance teams
Cointab helps finance teams reconcile VAT, sales tax, GST, input tax, output tax, tax ledgers, invoices, returns, credit notes, debit notes, and tax authority records.
Trusted by teams reconciling tax and finance data
Cointab is used by finance and accounts teams handling recurring reconciliation across taxes, books, customers, vendors, payments, banks, marketplaces, and internal systems.
VAT and sales tax records are hard to verify manually
Tax reconciliation often involves books, sales registers, purchase registers, tax ledgers, invoices, credit notes, debit notes, returns, tax authority records, and supporting files. When these records do not match, filing, audit, and month-end close become difficult.
Tax booked in books may not match tax returns
Books may show one VAT or sales tax amount, while return working or filing data shows another.
Invoices may be missing from tax records
Sales or purchase invoices may be present in books but missing from the VAT return, sales tax return, or tax working.
Tax records may be missing from books
Tax authority or return data may show invoice-level tax entries not found in internal books.
Tax rate differences create mismatches
Wrong VAT rate, sales tax rate, exemption treatment, zero-rated treatment, or place-of-supply logic can create amount differences.
Input tax credit needs review
Purchase tax credit may be available in vendor records or tax reports but may not be booked, claimed, or matched correctly.
Credit notes and debit notes change tax liability
Returns, discounts, reversals, corrections, and adjustments can change taxable value and tax amount across periods.
Period differences create open items
An invoice may be booked in one month but reported, claimed, reversed, or adjusted in another period.
Customer and vendor details may not match
Tax records may use legal names, tax registration numbers, VAT IDs, GSTINs, or business numbers that differ from internal master data.
Excel becomes fragile as volume grows
Finance teams often compare books, tax ledgers, sales registers, purchase registers, returns, invoices, and authority files using VLOOKUPs, pivots, filters, and manual exception notes.
Open items need clear action
Teams need to know whether an issue needs book correction, invoice correction, tax filing update, vendor follow-up, customer follow-up, credit note review, or tax-credit review.
What is VAT / sales tax reconciliation?
VAT / sales tax reconciliation is the process of matching tax recorded in books with sales, purchase, invoice, return, and tax authority records.
For example, books may show output tax on sales invoices and input tax on purchase invoices. Tax return working may show tax payable, tax credit, adjustments, reversals, and the final filing amount. Tax authority records may show filed or available tax data. If invoice, taxable value, tax rate, tax amount, customer/vendor, and period match, the record is clean. If not, the exception needs review.
Cointab helps bring these records together so the finance team can answer:
- Which tax entries in books match return data?
- Which invoices are missing from VAT or sales tax return working?
- Which tax records appear in return data but not in books?
- Which input tax credits are available but not claimed?
- Which output tax entries are missing or underreported?
- Which tax rates, taxable values, or tax amounts differ?
- Which credit notes, debit notes, or reversals explain the difference?
- Which customer or vendor tax IDs do not map cleanly?
- Which items need book correction, filing review, or follow-up?
Bring together books, invoices, tax ledgers, returns, and authority records
Cointab can reconcile VAT and sales tax workflows using reports from accounting systems, ERPs, tax portals, invoice systems, sales systems, purchase systems, and supporting files.
| Data source | Example records |
|---|---|
| Books tax ledger | Tax account, posting date, voucher number, taxable value, tax amount, balance |
| Sales register | Sales invoice, customer, taxable value, output tax, tax rate, invoice date |
| Purchase register | Vendor invoice, vendor, taxable value, input tax, tax rate, invoice date |
| VAT / sales tax return | Tax period, taxable sales, taxable purchases, tax payable, tax credit, adjustments |
| Tax authority report | Filed invoice data, available credit, tax ID, return period, tax amount |
| Invoice report | Invoice number, invoice date, customer/vendor, taxable value, tax code, tax amount |
| Credit note report | Credit note number, linked invoice, reversal amount, tax amount, reason |
| Debit note report | Debit note number, linked invoice, adjustment amount, tax amount, reason |
| Customer master | Customer name, tax registration number, VAT ID, GSTIN, state, country |
| Vendor master | Vendor name, tax registration number, VAT ID, GSTIN, state, country |
| Marketplace / eCommerce tax report | Platform sales, tax collected, refunds, commissions, tax adjustments |
| Payment / settlement report | Collections, settlements, deductions, tax on fees, payout tax details |
| Supporting data | Tax rate mapping, place-of-supply mapping, exempt/zero-rated mapping, entity mapping |
Users can start with a books tax ledger and return working, then add sales, purchase, invoice, credit note, debit note, tax authority, customer/vendor master, marketplace, payment, or supporting reports as the workflow becomes more complete.
Find tax differences faster
Cointab helps finance teams separate clean tax matches from exceptions needing review, correction, or filing follow-up.
Tax in books but missing in return
Books show a VAT or sales tax entry, but the matching record is missing from return working or filing data.
Tax in return but missing in books
Return or tax authority data shows a tax record, but the related book entry is not found.
Invoice missing
An invoice exists on one side but does not appear in the other tax or accounting report.
Tax amount mismatch
The invoice reference matches, but the tax amount differs between books, register, return, or authority data.
Taxable value mismatch
The taxable base amount differs even when the invoice or reference matches.
Tax rate mismatch
A wrong tax rate, VAT rate, sales tax rate, GST rate, exemption, or zero-rated treatment creates a difference.
Input tax credit mismatch
Purchase tax credit in vendor, authority, or return data does not match input tax booked or claimed.
Output tax mismatch
Output tax on sales invoices does not match books or return working.
Credit note mismatch
A credit note tax adjustment is missing, delayed, duplicated, or recorded with a different amount.
Debit note mismatch
A debit note adjustment is not reflected correctly across books, the tax ledger, and return data.
Period mismatch
An invoice, credit note, debit note, or adjustment appears in a different tax period across reports.
Tax ID mismatch
A customer or vendor tax registration number does not match the internal master or tax authority data.
Duplicate tax entry
The same invoice, tax entry, credit note, or adjustment appears more than once.
Filing adjustment mismatch
A manual adjustment in the tax return does not tie back to a book entry or supporting record.
How Cointab automates VAT / sales tax reconciliation
Cointab gives finance teams a reusable workflow for preparing tax data, matching records, reviewing exceptions, and exporting reports.
Select or create workflow
Start with a VAT / sales tax reconciliation template or build a custom workflow for your ERP, accounting system, tax return, authority file, invoice data, and tax working format.
Upload or automate data
Upload CSV, XLS, or XLSX files manually, or automate recurring data input through email, SFTP, or APIs.
Map required fields
Select date, amount, and identifier columns such as invoice number, tax date, customer code, vendor code, tax registration number, tax code, tax rate, taxable value, tax amount, return period, or voucher number.
Add supporting data
Use supporting files for customer/vendor master mapping, tax ID mapping, tax rate mapping, place-of-supply logic, exemption mapping, invoice mapping, or adjustment logic.
Create derived columns
Use AI to create calculated fields such as clean invoice number, normalized tax ID, expected tax amount, tax-rate key, taxable-value difference, return-period key, input/output tax flag, or combined matching reference.
Run reconciliation
Cointab applies structured matching logic across books, tax ledgers, sales registers, purchase registers, invoices, credit notes, debit notes, returns, tax authority files, and supporting data.
Review exceptions
See fully matched, partially matched, unmatched, and skipped records, then drill into transaction-level details.
Download or automate output
Download Excel reports or push matched, unmatched, exception, or summary data back to ERP, accounting, tax, BI, analytics, or internal systems.
Match structured tax records with rules and difficult exceptions with AI
Cointab applies structured matching first, then uses AI for difficult open transactions where invoice refs, tax IDs, descriptions, or tax treatment differ across files.
Structured matching
Cointab can match VAT / sales tax records using:
Matching scenarios
One-to-one
One tax entry in books matches one invoice or return record.
One-to-many
One invoice maps to multiple tax lines, rates, adjustments, or return entries.
Many-to-one
Multiple tax entries are grouped into one return line or filing amount.
Many-to-many
Multiple invoices, tax lines, credit notes, debit notes, and adjustments are grouped and compared together.
Partial matching
Invoice, customer, vendor, or tax ID matches, but taxable value or tax amount differs.
Contra / adjustment matching
Credit notes, debit notes, reversals, refunds, filing adjustments, and tax corrections are netted against original tax entries.
AI-assisted transaction matching
After structured rules run, AI helps match difficult open transactions where:
- Invoice numbers are formatted differently
- Customer/vendor names differ
- Tax IDs are missing or inconsistent
- Tax authority file uses a legal name instead of the internal name
- Credit notes are not directly linked to invoices
- Tax adjustments are grouped in return data
- One filing line represents many invoice-level entries
- Tax descriptions contain embedded refs
- Books and return use different periods
- Multiple possible matches exist across books, invoices, returns, and authority records
AI exception analysis
For transactions that remain open, AI can help identify possible reasons such as:
AI assists reconciliation, but Cointab keeps output transparent, reviewable, and audit-friendly.
Clear VAT / sales tax reconciliation reports your team can use
Cointab gives finance teams a complete report showing what matched, what partially matched, what remains unmatched, and what was skipped.
Report categories
Fully matched
Tax records where books, invoice, customer/vendor, taxable value, tax rate, tax amount, and return data match.
Partially matched
Records where invoice, customer/vendor, tax ID, or period matches, but taxable value or tax amount differs.
Unmatched in books
Tax records present in return, authority, invoice, or external data but not found in books.
Unmatched in tax return
Tax records present in books but not found in return working, filing data, or authority records.
Skipped
Rows excluded because of missing, invalid, duplicate, incomplete, or unusable data.
Report capabilities
- Summary cards
- Transaction-level tables
- Matched transaction detail view
- Filters for review
- Difference amounts
- Customer-wise summary
- Vendor-wise summary
- Tax ID-wise summary
- Tax rate-wise summary
- Period-wise summary
- Input tax review
- Output tax review
- Invoice-wise review
- Credit note and debit note review
- Taxable value difference review
- Tax amount difference review
- Excel export
- Manual match
- Undo manual match
- Audit-ready output
- Open-item reason and action analysis
Cointab output is designed around fully matched, partially matched, unmatched, and skipped records, with transaction-level review, filters, Excel export, manual match, and undo manual match capabilities.
Automate recurring VAT / sales tax reconciliation
Once the VAT / sales tax reconciliation workflow is configured, Cointab can automate data input, reconciliation runs, and output delivery.
Bring data into Cointab
Receive or pull data through:
- Books tax ledger exported from ERP or accounting software
- Sales register pushed from ERP
- Purchase register uploaded from the accounting system
- VAT or sales tax return working uploaded on schedule
- Tax authority report added after download
- Invoice report received from the billing system
- Credit note and debit note reports uploaded automatically
- Customer/vendor master pushed from the internal system
- Marketplace tax report pulled from SFTP
- Payment or settlement tax data received by email
Run reconciliation automatically
Schedule reconciliation:
Push output back
Send reconciliation output to:
- Fully matched tax records
- Partially matched tax records
- Tax in books but missing in return
- Tax in return but missing in books
- Input tax credit gaps
- Output tax differences
- Tax amount mismatches
- Taxable value mismatches
- Tax rate differences
- Credit note differences
- Debit note differences
- Period mismatches
- Tax ID mismatches
- Filing adjustment gaps
- Exception reasons
- Suggested actions
- Excel reports
- Structured API output
Built for finance and tax teams handling recurring tax reconciliation
Cointab is useful for teams that regularly reconcile VAT, sales tax, GST, input tax, output tax, invoices, returns, credits, adjustments, and filing records.
Finance teams
For teams preparing VAT or sales tax reconciliation reports for month-end close, audit, filing, and management review.
Tax teams
For teams reviewing tax credits, output tax, return working, tax rates, tax IDs, and filing differences.
Accounts payable teams
For teams matching vendor invoices, input tax credits, purchase registers, and tax authority records.
Accounts receivable teams
For teams matching customer invoices, output tax, credit notes, debit notes, and sales tax records.
Controllers and CFO teams
For teams needing visibility into tax liability, tax credits, open items, filing support, and unresolved differences.
eCommerce and marketplace teams
For teams reconciling sales tax or VAT across marketplace sales, refunds, settlements, fees, and books.
Retail and consumer businesses
For companies reconciling store sales, invoices, tax collected, returns, refunds, and tax filings.
Accounting firms
For firms handling VAT, sales tax, GST, or tax reconciliation for multiple clients.
Audit and compliance teams
For teams needing audit-ready support for tax ledger, input/output tax, return, and filing balances.
Trusted by teams handling tax and finance reconciliation
Cointab is used by finance and operations teams that reconcile high-volume, multi-source transaction data across taxes, books, customers, vendors, payments, banks, marketplaces, partners, and internal systems.
“We have worked on many softwares but we love the ease of using cointab. The staff and support is very instant. They are approachable, proficient and patient. Team is very cooperative with the customisations. The experience of using cointab was nice.”
VAT / sales tax reconciliation FAQs
Start reconciling VAT and sales tax faster
Use a ready-made VAT / sales tax reconciliation template, build a custom workflow, or schedule a guided setup with the Cointab team.
No credit card required · Manual uploads and automated data flows supported