Invoice Template for Agencies in India (Free, GST-Ready)
Retainer, project, and third-party cost billing formats for digital, creative, and marketing agencies in India — with GST fields and professional terms.
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SAC codes for agency services
Digital marketing services
998361
GST: 18%
Advertising agency services
998361
GST: 18%
Social media management
998361
GST: 18%
SEO / content marketing
998361
GST: 18%
Creative / graphic design
998392
GST: 18%
Web development
998314
GST: 18%
Template 1 — Monthly retainer (digital agency)
Use for ongoing monthly client retainers — SEO, social media, ads management.
PixelGrowth Digital Agency
Bangalore, Karnataka · GSTIN: 29XXXXX1234X1Z5
SAC: 998361 (Digital Marketing)
TAX INVOICE
INV-2026-041 · March 2026
Due: 10/04/2026
Bill To
RetailBrand Pvt. Ltd., Mumbai, MH
Different state (KA → MH) — IGST 18%
| Service | SAC | Amount |
|---|---|---|
| SEO management — 10 blog posts + technical audit | 998361 | ₹35,000 |
| Google Ads management (5% of ad spend — ₹4,00,000) | 998361 | ₹20,000 |
| Social media management — 4 platforms, 20 posts | 998361 | ₹25,000 |
| Monthly performance report + strategy call | 998361 | ₹5,000 |
Template 2 — Project with third-party costs
Use when the agency incurs costs (photography, printing, tools) on the client's behalf.
| Description | Type | Amount |
|---|---|---|
| Brand video production — concept, scripting, 1 day shoot | Agency fee | ₹80,000 |
| Videographer (external, GST bill attached) | Pass-through | ₹25,000 |
| Studio rental — 10 hours | Pass-through | ₹15,000 |
| Stock music licensing | Pass-through | ₹5,000 |
Agency-specific billing best practices
Separate agency fees from ad spend clearly
Never bundle ad spend with your fee. Clients need to see the split. "Agency management fee: ₹20,000 / Ad spend: billed direct to client" is cleaner and prevents disputes.
Invoice retainer clients in advance
Send the retainer invoice on the 1st of the month — before starting work. Agencies that bill in arrears often face cash flow problems.
Include performance summary in the invoice notes
A one-line note like "March results: 45 leads generated, 8.2% CTR on Google Ads" justifies the fee and builds client trust.
Use project codes for multi-project clients
If a client has multiple projects (website + SEO + ads), use project codes in the invoice: INV-2026-041-SEO, INV-2026-041-ADS. Easier for their accounts team.
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