GST Registration for Singapore Startups: Complete Guide to Compliance and Strategy

GST Registration Threshold

You must register for GST if your annual turnover exceeds SGD 1 million. This threshold applies to the preceding 12 months of supplies. Even if you haven't reached this threshold, you can voluntarily register if it benefits your business (e.g., to claim input tax credits).

GST Registration Process

Registration involves:

• 1. Prepare required documents (business registration, financial records)
• 2. Apply through IRAS online portal
• 3. Receive GST registration number
• 4. Update accounting systems
• 5. Issue GST-compliant invoices

Input and Output Tax

Output tax is GST charged on your supplies (8% of selling price). Input tax is GST paid on business purchases. You claim input tax credits to offset output tax, paying only the net GST to IRAS. Proper record-keeping is essential for claiming input tax credits.

GST Compliance Obligations

GST-registered businesses must:

• ✓ Issue GST invoices for all supplies
• ✓ Maintain GST records for 5 years
• ✓ File GST returns (typically quarterly)
• ✓ Pay GST on time
• ✓ Maintain separate GST accounting