FinCheckLab

Finance Tools v1.0

Main

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Bank & Payments

IBAN Validator SWIFT/BIC Checker Bank Code Checker FX Conversion Checker Checksum Validator (Luhn)Rate Consistency Validator Country Match Validator Spread Analyzer

Tax & VAT

VAT Number Checker Tax Calculation Checker Tax Deduction Validator Country Validation Tool

Invoicing & Documents

Invoice Total Validator Rounding Error Finder Due Date Validator Late Payment Penalty Calculator Interest Checker Expense Categorization Checker

Payroll & Compliance

Net/Gross Validator Payroll Calculator Contribution Checker Limit Checker Balance Sheet Consistency Checker Accounting Period Validator Fiscal Year Checker Assets/Liabilities Validator Cutoff Error Detector

Discovery

llms.txt tools.json

Use CORS proxy

Finance Tools v1.0

Guides

Fix finance and accounting issues. Each guide links to a free tool.

Fix IBAN invalid format
Fix VAT number wrong country format
Fix SWIFT/BIC invalid format
Fix invoice total mismatch
Fix tax calculation error
Fix net/gross conversion
Fix due date wrong terms
Fix rounding error in invoice
Fix Luhn checksum fail
Fix balance sheet imbalance