GST Invoice Format for Service Providers India 2026 — Complete Guide
Service sector businesses (jaise consultants, designers, software developers, agency firms) ka billing setup products trading sector se bohot distinct hota hai. Service sector invoices par quantity (Qty) or items boxes metrics physical parameters columns use nahi hote, balki project deliverables, service milestones, hourly rates, service periods, aur SAC (Services Accounting Code) classifications mapping dynamic features target hote hain.
Is dynamic compliance guide mein hum cover karenge service provider bills format setup requirements, target fields, aur localized configurations.
Service Invoice vs Product Invoice — Key Differences
Service vs product invoicing differences standard parameters niche table detailed outline show karte hain:
| Billing Component parameters | Product Trading Invoice format | Service Professional Invoice format |
|---|---|---|
| Code Classifications | HSN (Harmonized Nomenclature code) | SAC (Services Accounting Code) |
| Billing Units mapping | Kg, Pieces, Metres, Litres | Hours, Project Milestones, Lumpsum |
| GST Rate structure ranges | 5%, 12%, 18%, 28% dynamic split | Standardised 18% GST sector rate |
| Logistics & Ship details | E-Way bill, shipping target address | Service location, Place of Supply metrics |
Mandatory Fields in GST Service Invoice
- •Seller Details: Legal business details, registered state, and active GSTIN.
- •Buyer/Client details: Billing address, active GSTIN (for corporate B2B ITC claims verification).
- •Invoice metadata: Sequential numbers, invoicing date, and place of supply identification.
- •Deliverables sheet: Project specifications descriptions, SAC codes database reference.
- •GST split columns: Intra-state (CGST 9% + SGST 9%) or Inter-state clients (IGST 18% calculations).
Most Common SAC Codes for Service Businesses
Service sector main dynamic categories relative SAC codes detailed lists coordinates:
| Service Industry Segment | SAC Code mapping | GST Rate Split |
|---|---|---|
| IT & Software Professional services | 998314 | 18% GST |
| Management consulting advisory | 998311 | 18% GST |
| Legal representation services | 998211 | 18% GST (RCM rules check) |
| Accounting, Audit & CA services | 998222 | 18% GST |
| Marketing, PR & Advertising agency | 998361 | 18% GST |
| Design services (Graphic, Interior, Web) | 998392 | 18% GST |
| Educational classes, Training setups | 999293 | 18% GST |
When to Charge CGST+SGST vs IGST on Services
Place of Supply logic determine karti hai. Agar aap Maharashtra registered service provider hain aur client bhi Maharashtra GST number uses record hold karta hai, CGST+SGST charge hoga. Agar client Karnataka based company hai, to direct IGST calculation split application lagti hai, jo Udyog automated calculate settings dynamic verify karta hai.
Service Invoice for B2C Clients
Non-registered individual client invoices standard B2C templates structure par process hoti hain, jahan place of supply values dynamic capture karke billing clear balance confirm hota hai.
Time of Supply for Services
GST regulations specify karti hain ki services delivery date/completion verification se within 30 days tax invoice generate hona mandatory hai, timeline ignore hone par non-compliance penal warnings face ho sakti hain.
How to Create Service Invoice in Udyog
- 1Udyog profile open karke default settings → Invoicing type select karein.
- 2Service Invoicing template choose karein (system physical count columns parameters hide kar deta hai).
- 3Client detail settings select karke invoice profile load karein.
- 4Project description specifications and SAC code definitions enter details.
- 5Tax calculation subtotal verify karke PDF sharing trigger settings apply karein.
Service module details
Udyog software service industry requirements ke liye standard template adjustments and customized billing layouts pre-configures hold karta hai.
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Create Service Invoice →Frequently asked questions
Quick answers to common questions.
Service provider bills GST rates standard rules kya hain?
Standard services configurations par 18% GST applied rate split metrics follow hotey hain.
IT consultant SAC code and dynamic description standard matches kya hain?
IT consulting requirements standard classification SAC code 998314 check updates uses follow karti hain.
Udyog app par service invoice PDF layouts customized signatures verify ho sakti hain?
Haan, settings manager settings par digital sign uploads dynamic verify prints support karti hain.
B2C service invoices generation requirements kya mandatory are?
B2C invoices standard B2C fields layout splits support settings use karke generate maintain ho sakti hain.