Critical Mass Cloud
Combines accounting, payroll, and e-signing to handle Singapore statutory requirements including invoicing, GST F5, bank reconciliation, CPF/SDL payroll, IR8A/IR21, leave, claims, and InvoiceNow e-invoicing via Peppol
Launch screenshots from Product Hunt, Jul 2026
The product is a cloud platform that combines accounting, payroll, and e-signing to handle Singapore statutory requirements including invoicing, GST F5 returns, bank reconciliation, CPF/SDL payroll, IR8A/IR21 filings, leave and claims, and InvoiceNow e-invoicing via Peppol. It is for finance and HR staff at Singapore small and medium businesses of about 5 to 50 employees that need payroll, books, and signing in one place. It is positioned as built from the ground up for Singapore compliance rather than a global platform adapted with add-ons or integrations.
Key features
- Invoicing with InvoiceNow via Peppol
- GST F5 returns with auto-classification
- Bank reconciliation
- Journals and financial statements
- CPF, SDL and SHG payroll calculations
- Itemised payslips to MOM standards
- IR8A/IR21 and IRAS AIS submission
- Leave and claims management
- E-signatures with audit trail
- Schema-per-tenant data isolation
- No social media activity within the last 30 days
- No GTM activity detected
- Finance accounting teams
- HR people teams
- SMB owners