Do I need to add GST on invoices in Singapore?

Only if you are GST-registered. Most side hustlers are not, because the mandatory threshold is high (S$1M turnover).

Where do I read Singapore tax rules for side income?

Use our Singapore guide here: /freelance-tax/singapore

🇸🇬 Singapore · 2026 template

Freelance invoice template (Singapore, 2026)

Singapore invoicing is straightforward, but keep records for 5 years and be clear about GST only if you're registered (most side hustlers are not).

Editorial template · Hustle Report · authority: IRAS

What to include

Invoice number + date + due date
Client
Line items
Payment details

When to invoice

Upfront retainers
Milestones

Numbering

Use sequential numbering; keep PDFs.

Singapore notes

Trade income is reportable from S$1.
GST registration generally only becomes mandatory above S$1,000,000 turnover.

Copy/paste invoice template (Singapore)

Plain text template — paste into Notion/Docs

# Header
INVOICE
Invoice number: 2026-001
Invoice date: YYYY-MM-DD
Due date: YYYY-MM-DD

# From
Your name / business
Address
Email

# Bill to
Client name
Client address

# Line items
1) Service description — S$X
Total due: S$___

# Payment
PayNow / bank details
Reference: Invoice 2026-001

Common questions

Invoice template · Singapore · FAQ

Do I need to add GST on invoices in Singapore?
Only if you are GST-registered. Most side hustlers are not, because the mandatory threshold is high (S$1M turnover).
Where do I read Singapore tax rules for side income?
Use our Singapore guide here: /freelance-tax/singapore

Next steps

From invoice → take-home

Invoicing is the evidence layer. Your rate floor and your country thresholds are the profit layer.

Other markets

More invoice templates

Keep reading

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Editorial template only. This is not legal or tax advice. Requirements vary by activity, client type and registration status (VAT/GST/TRN). When in doubt, verify with your local authority or a licensed professional.