Guide
GST invoice format for service businesses
After work is approved or delivered, your invoice should be easy to read, GST-correct, and ready to share on WhatsApp or email. Service invoices need clear line items and the right tax split.
Core invoice fields
Every service invoice should identify both parties and the supply clearly.
- Invoice number and date
- Your business name, address, GSTIN
- Client name, address, GSTIN (if applicable)
- Description of services, HSN/SAC where required
- Taxable value, CGST/SGST or IGST, and total
CGST + SGST vs IGST
Intrastate service supplies generally use CGST and SGST. Interstate supplies use IGST. Match the mode to where you and your client are located.
After you send the invoice
Record payments as they arrive—advance, partial, or full—and track outstanding balance. This is where many SMBs lose clarity in spreadsheets.
Related in Quotera
Frequently asked questions
Does Quotera replace my CA?+
No. Quotera helps you create and track client documents and payments. Consult your CA for GST filing, compliance, and audit requirements.
Can I download branded invoice PDFs?+
Yes. Quotera generates branded PDFs with your logo, colours, and payment details during early access.