InvoicePro Advisory Consulting & Professional Services
Business • Management • IT • Financial • HR • Strategy Consultants

Billing Software for Consultancy Firms

Managing a consultancy business means handling clients, projects, professional fees, retainers, consultations and recurring services. A professional billing system makes it easier to create clear invoices and maintain consistent billing for every client.

InvoicePro is a simple online billing and invoice generation solution for consultancy firms and independent consultants. Create professional invoices for consulting services, add applicable GST details, include payment information and generate invoices in a clean business format.

100% Free Forever No monthly fees
Hourly & Retainer Flexible models
SAC 9983 Ready Consulting tax engine
Dynamic UPI QR Instant settlement
Live Demonstration

Standard Consulting Services Invoice Format

See how an authentic professional consultancy invoice looks with SAC codes, consulting hours, milestone notes and dynamic UPI QR payment settlement.

NEXUS ADVISORY & MANAGEMENT CONSULTANTS LLP

Business Strategy, Corporate Governance & Digital Operations Advisory

Suite 902, Maker Maxity, Bandra Kurla Complex (BKC), Mumbai, Maharashtra - 400051

GSTIN: 27AABFN4821P1ZT | Contact: advisory@nexusconsulting.in

TAX INVOICE INV-ADV/2026/0312 Invoice Date: 14/Sep/2026 Payment Terms: Due in 15 Days
Billed To / Client Engagement:
Zenith Enterprises Private Limited

Peninsula Business Park, Tower B, Senapati Bapat Marg, Lower Parel, Mumbai - 400013

Attn: Mr. Rohan Mehta (Chief Operating Officer)

Client GSTIN: 27AABCZ9012F1Z8

State: Maharashtra (27) | Place of Supply: Mumbai

Engagement Ref: Digital Operations Scale-Up (Phase 2 Milestone)

# Consulting Service & Scope Description SAC Code Hours / Qty Rate (₹) GST % Amount (₹)
1
Business Strategy Consulting
Go-to-market roadmap, corporate structuring & operational reviews
998311 10 Hrs ₹2,500.00 18% ₹25,000.00
2
Management Advisory & Executive Leadership Coaching
C-Suite alignment workshops and organizational change management
998311 5 Hrs ₹2,000.00 18% ₹10,000.00
3
Business Research & Competitor Benchmarking Analysis
Comprehensive industry intelligence report and financial feasibility modeling
998312 1 Project ₹8,000.00 18% ₹8,000.00
Scan to Pay
Instant UPI & Wire Transfer:
nexusadvisory@axisbank
Bank: Axis Bank, BKC Mumbai Branch
A/C: 921020084920192 | IFSC: UTIB0000004
Subtotal (Professional Fees): ₹43,000.00
CGST (9% on ₹43,000): ₹3,870.00
SGST (9% on ₹43,000): ₹3,870.00
Total Invoice Amount: ₹50,740.00
Amount in words: Fifty Thousand Seven Hundred Forty Rupees Only
Tailored Service Disciplines

Billing for Different Consultancy Services

InvoicePro is designed for different types of consulting firms and independent advisory practices:

Business Consultants

Create invoices for business advisory, strategy consulting, management consulting and professional assignments.

Management Consultants

Bill clients for consulting projects, advisory services, research, process re-engineering and management support.

IT Consultants

Create invoices for software consulting, technology advisory, cloud architecture, cybersecurity and IT services.

Financial Consultants

Generate professional invoices for financial advisory, valuation, fundraising modeling and consulting services.

HR Consultants

Bill clients for executive recruitment, HR advisory, compensation structuring, training and professional services.

Marketing Consultants

Create invoices for marketing strategy, campaign consulting, brand advisory and digital marketing services.

Tax & Accounting Consultants

Generate invoices for corporate accounting, taxation, internal bookkeeping and professional advisory services.

Independent Consultants

Freelance and solo consultants can create professional invoices for individual projects and client assignments.

Consultancy Invoice Format

A professional consultancy invoice should clearly show what the client is being charged for:

Invoice Field Purpose & Information Included
Consultant / Firm Name Identifies the advisory firm, partnership LLP or independent consultant.
Address & Contact Business office address, official email and phone for communication.
GSTIN GST identification number for input tax credit (ITC) eligibility.
Invoice Number & Date Unique, sequential invoice reference and date of issuance.
Client Details Client corporate identity, address, contact person and client GSTIN.
Project / Assignment Links the invoice directly to the engagement contract or milestone phase.
Service Description Explains the exact advisory scope, deliverables and work performed.
Hours / Quantity Transparent breakdown of billable consulting hours or deliverable count.
Professional Fee Agreed hourly consulting rate, fixed milestone charge or retainer fee.
Discount Applicable long-term partnership or introductory discount.
Taxable Value & GST Value before tax with applicable CGST, SGST, or IGST rate (typically 18%).
Total Amount Final net invoice payable amount in figures and words.
Payment Terms Payment due date, advance adjustment notes or interest on delay terms.
Bank & UPI Details Direct NEFT/RTGS bank coordinates and dynamic scan-to-pay UPI QR code.
Dynamic Pricing Models

Suitable for Different Billing Models

Consultancy businesses use different pricing structures. InvoicePro helps you prepare invoices for every engagement scenario:

Fixed Project Fees

Bill a client for a complete consulting assignment, turnkey advisory report or comprehensive corporate project.

Hourly Consulting

Record consulting hours, partner/associate rates and total professional charges with itemized timesheet logs.

Monthly Retainer

Create recurring professional invoices for ongoing advisory retainers, monthly strategy calls and retainer periods.

Milestone Billing

Prepare invoices for specific project stages (e.g. Discovery 30%, Strategy 40%, Implementation Sign-off 30%).

Consultation Fees

Bill clients for individual strategy sessions, expert interviews, advisory board meetings or one-on-one evaluations.

Additional Services

Add separately billable research subscriptions, client site travel reimbursements or ad-hoc technical audits.

Key Features for Consultancy Billing

Built specifically for knowledge workers, advisory practices and corporate consultants:

Professional Service Invoices

Create clean invoices tailored to professional services instead of confusing clients with product-only retail formats.

GST & SAC 9983 Support

Automatic calculation of 18% GST (CGST/SGST/IGST) with appropriate Service Accounting Codes (SAC 9983).

UPI Payment Support

Include a dynamic UPI QR code so corporate clients or business founders can settle fees instantly via mobile banking.

Guaranteed 1-Page A4 Print

Auto-fit print engine ensures executive-grade single-page presentation without clumsy spillover lines.

Multiple Business Profiles

Manage separate billing entities (e.g. your independent advisory practice and your corporate consulting firm).

Professional Invoice Design

Present your firm’s brand identity, contact details, payment terms and client notes in a modern corporate layout.

Practice Efficiency

Why Consultancy Firms Need Professional Billing Software

Manual invoice preparation can become repetitive as the number of clients and projects increases. A dedicated billing solution helps you create consistent, branded invoices without spending hours on spreadsheets.

A dedicated billing solution can help you:

Create invoices 5x faster
Maintain consistent invoice formatting
Reduce repetitive data entry
Present executive-grade invoices
Organize consulting charges clearly
Include applicable GST information
Provide instant UPI payment options
Print or PDF share in 1-click
Manage multiple client engagements
Streamlined Workflow

How to Create a Consultancy Invoice with InvoicePro

Prepare executive-ready client invoices in 6 straightforward steps:

1

Firm Details

Enter your advisory firm or consultant name, address and GSTIN.

2

Client Info

Enter client name, billing address and client GSTIN where applicable.

3

Services

Describe the consulting engagement, milestone or professional scope.

4

Fees & GST

Add consulting fees, hours/retainer rates, SAC 9983 and 18% GST.

5

Payment Info

Include bank details (NEFT/RTGS), payment terms and UPI QR code.

6

Download / Print

Review the invoice and print (A4 format) or share via WhatsApp/PDF.

GST Invoicing for Consultancy Services

Consultancy services in India are generally categorized under Chapter 99 (Other Services), predominantly under SAC 9983 (Other professional, technical and business services), and are subject to 18% GST (9% CGST + 9% SGST for intrastate, or 18% IGST for interstate transactions).

Standard Consulting SAC Codes:
  • • 998311: Management consulting and business advisory
  • • 998312: Business research and feasibility services
  • • 998313: IT and technical software consulting
  • • 998314: Human resources and recruitment consulting
InvoicePro Fields Provided:
  • • Firm GSTIN & Client GSTIN for B2B ITC claim
  • • Place of Supply (POS) detection for IGST vs CGST/SGST
  • • Taxable value, tax breakdown and grand total in words
  • • Export invoice support (zero-rated supply under LUT)
Got Questions?

Frequently Asked Questions

Common questions about consultancy billing on InvoicePro:

What is billing software for consultancy firms?

Billing software for consultancy firms helps consultants create professional invoices for consulting fees, projects, retainers, hourly services and other professional charges.

Can consultants create GST invoices with InvoicePro?

Yes. InvoicePro provides GST-related invoice fields such as GSTIN, HSN/SAC (such as SAC 9983) and CGST, SGST and IGST fields where applicable.

Can I create invoices for hourly consulting?

Yes. You can include service descriptions, hours or quantity, rates and applicable charges for transparent billing.

Can I create monthly retainer invoices?

Yes. You can create invoices for recurring or periodic consulting services by entering the applicable professional fee and billing period.

Can I mention a project name on the invoice?

Yes. A project or assignment reference can be included as part of the service description or invoice header information.

Can I add UPI payment details?

Yes. InvoicePro supports UPI payment information and dynamic scan-to-pay UPI QR functionality.

Is InvoicePro suitable for independent consultants?

Yes. Independent consultants, boutique advisory firms and small professional practices can use InvoicePro to create professional service invoices.

Can I print consultancy invoices on A4 paper?

Yes. Professional A4 format is supported with guaranteed 1-page fit print lock, along with A5 and suitable thermal/POS formats.

Is InvoicePro free?

InvoicePro is designed as a 100% free billing and invoice generation solution with no hidden subscription costs.

Start Creating Consultancy Invoices Today

Spend less time preparing invoices and more time serving your clients. Create professional invoices for consulting projects, professional fees, retainers and other services with InvoicePro.

Fast • Professional • Simple • 100% Free Forever

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