Free Invoicing Software for Singapore Freelancers and SMEs

If you are a freelancer or small business owner in Singapore, you have probably sent invoices via a Word document or a Google Docs template at some point. It works — until it does not. Tracking which invoices are paid, calculating GST correctly, and chasing overdue payments becomes a full-time job.

Free invoicing software solves this. But not all tools are built for Singapore businesses.

What to look for in free invoicing software

1. GST support at 9%

Singapore GST is currently 9%. Any invoicing tool you use must calculate GST correctly and display the breakdown on the invoice — subtotal, GST amount, and total. This is an IRAS requirement for GST-registered businesses.

Generic global tools often default to other tax rates or require manual configuration that is easy to get wrong.

2. SGD as the default currency

You should not have to select Singapore Dollar every time you create an invoice. Look for software that defaults to SGD and formats numbers correctly for Singapore (e.g. $1,234.56, not $1.234,56).

3. PDF generation with your business details

Your invoice PDF should automatically include your company name, UEN, GST registration number (if applicable), and registered address. Manually adding this to every invoice is tedious and easy to forget.

4. Payment status tracking

You need to know at a glance which invoices are unpaid, overdue, or paid. A proper dashboard saves you from scrolling through sent emails trying to remember who owes you money.

5. Overdue reminders

The best tools send automatic payment reminders to customers when invoices become overdue. You should not have to write a chasing email every time.

The problem with global tools

Tools like Wave, Zoho Invoice Free, and Invoice Ninja are popular internationally, but they are built for a global audience. This means:

• GST configuration requires multiple manual steps
• PDF templates look generic and do not always include Singapore-required fields
• Customer support does not understand IRAS requirements
• Some features (like automatic reminders) are paywalled

Claify: built for Singapore

Claify is free invoicing and accounting software built specifically for Singapore SMEs.

What you get on the free plan:

• Unlimited invoices and quotations with GST at 9%
• PDF generation with your business name, UEN, and address
• Payment status tracking (unpaid, partial, paid, overdue)
• Automatic overdue reminders via email
• Customer contact management
• Bank transaction import (DBS, OCBC, UOB CSV)

How to send your first invoice in Claify:

1. Create a free account — no credit card required
2. Add your business details in Settings
3. Add your customer under Customers
4. Go to Invoices → New Invoice
5. Add line items — Claify calculates GST automatically
6. Click Send — your customer receives a professional PDF with a payment link

The whole process takes under two minutes once your account is set up.

Upgrading when you need more

When your business grows, Claify's paid plans add:

• API access — connect your own AI agent to create invoices via Telegram or WhatsApp
• Advanced reports — Profit & Loss, Balance Sheet, GST F5 pre-filled
• Priority support

But for most Singapore freelancers and small businesses, the free plan covers everything you need.

Get started free at claify.homeauto.sg →