Consulting Project and Billing Management System Web App is a browser-based Google Apps Script template for consulting businesses that need one operating system for quotations, project conversion, client records, GST invoices, export invoices, payments, reports, user access, dropdown values, company settings and audit history.
The need is practical. Wellingtone’s project management research reports that only 36% of organisations mostly or always complete projects on time, and its State of Project Management report also notes that 42% of respondents spend at least one day manually collating project reports. For consulting teams, scattered quotation sheets and separate billing files can quickly turn into missed follow-ups, late invoices and unclear receivables.
This template gives consultants an editable starting system without committing to a recurring PSA or CRM subscription. It runs through Google Apps Script, and Google’s official web app deployment guide explains how Apps Script projects can be published as browser-accessible web apps.
Get the Consulting Project and Billing Management System Web App from NextGenTemplates
🚀 Try the Live Demo Before You Buy
We have deployed this web app in our own Google account so you can test every page, every role, and every report — with real sample data — before purchasing. No signup, no email required.
🔑 Test Login Credentials
Sign in as owner or admin to unlock everything — users, lists, settings, archive and delete rights. Log in as manager to work the day-to-day flow (quotations, clients, projects, payments, invoices and reports) without admin areas or delete rights, or as staff for a read-only view of dashboards and lists with the ability to add follow-up notes on quotations. 💡 Tip: open the same demo in two browser tabs with different roles to see exactly what each user can and cannot access.
💡 What you get after purchase: The full source code (Code.gs + Index.html) plus a step-by-step deployment guide so you can deploy your own private instance in your own Google account in under 15 minutes.
Key Features of Consulting Project and Billing Management System Web App
- Secure branded login: Sign in with username or email, password visibility and ConsultBill Pro branding.
- Quotation pipeline: Track quotation number, prospect, service, amount, source, status, follow-up date and won conversion.
- Automatic client creation: Create a client record when a quotation is marked won, while manual admin additions are retained for audit review.
- Project master: Track project ID, client, currency, project value, received amount, balance, timeline and current status.
- Billing and payment control: Manage GST/export invoices, receipts, payment mode, invoice references and outstanding balances.
- Currency-aware reporting: Review INR and USD totals separately through dashboard panels and report filters.
- Administration: Manage users, dropdown lists, service/SAC catalog, tax settings, document numbering and audit history.
Dashboard Pages Explanation
1. Secure Login
The Secure Login screen gives the system a controlled entry point. It includes branded ConsultBill Pro messaging, username or email login, password visibility and source branding for NextGenTemplates. The right-side panel highlights quotation-to-project tracking, GST and export invoices, INR and USD billing and WhatsApp follow-up workflow.
2. Dashboard
The dashboard gives owners a first look at the consulting business. Cards show quotations sent, projects won, payments received, outstanding balance and ongoing projects. The analysis panels explain projects by status, quotation pipeline by stage, revenue split by currency and monthly payments received.
3. Quotations
The Quotations module is the sales pipeline workspace. Each row shows quotation number, quotation date, prospect, contact person, service, currency, total amount, status, follow-up date and converted status. Search, status, currency and source filters help the team focus on follow-up, negotiation, approved/won and rejected/lost quotes.
4. Client Master
Client Master centralizes client name, client ID, contact person, email, phone, country, currency, project count, billed amount, received amount, balance and active status. This is where account managers can review client-level billing and collection history before sending reminders or creating new work.
5. Project Master
Project Master converts sales into delivery tracking. It records project name, project ID, client, currency, project value, received amount, balance amount, status and timeline. Actions for schedule, invoice, balance, project document and WhatsApp follow-up keep delivery and billing close together.
6. Payments
The Payments module records receipt number, receipt date, client, project, invoice reference, currency, payment amount, payment mode and transaction reference. Search and filters make it easier to reconcile receipts by currency or payment mode, while print and email actions support client communication.
7. Invoices
Invoices covers GST and export billing records. It shows invoice number, date, type, client, project ID, currency, taxable amount, tax or LUT treatment, total amount and payment status such as partially paid. Search, type filters, status filters, export, print and email controls help the accounts team manage billing from one screen.
8. Reports
The Reports screen gives a quotation report selector, from/to date filters, currency and source filters, run report action and summary cards for USD value, quotations, INR value, won count and win rate. The report table shows quotation ID, date, prospect, source, currency, total, status and converted result.
9. User Management
User Management lists user name, username, role, email, active status and created date. Roles such as Admin, Manager and Staff help separate system setup work from everyday quotation, project and billing activity.
10. List Management
List Management controls dropdown values and the services/SAC catalog. Admins can manage dropdown type, value name, sort order and active status for values such as country, making daily data entry more consistent across quotes, clients, projects and invoices.
11. Settings
Settings stores company and branding details, address, email, phone, website, logo, supplier GSTIN, default GST percent, supplier state, state code, default SAC code, LUT/ARN number, export declaration notes and numbering formats for quotation, client, project, payment, GST invoice, export invoice and credit note.
12. Audit Log
The Audit Log provides administration history with event date/time, user, action, module, record and details. It is useful for reviewing login activity, setup actions, user changes, manual client additions and other sensitive changes.
Consulting Project and Billing Management System Web App vs. Google Sheets Tracker vs. Paid CRM/SaaS – Feature Comparison
| Comparison Point | This Web App Template | Google Sheets Tracker | Paid CRM/SaaS |
|---|---|---|---|
| Cost | $39.99 one-time sale price | Low cash cost, more build time | Monthly or annual subscription |
| Platform | Google Sheets database plus Apps Script web app | Spreadsheet tabs | Vendor-hosted cloud platform |
| Setup time | Starts with 12 ready screens | Manual form and report design | Configuration and onboarding |
| Real-time collaboration | Supported after deployment and permissions setup | Shared file editing | Usually included by plan |
| Mobile access | Browser access after deployment | Sheets app or browser | Usually app or browser |
| Custom fields | Editable lists, settings, sheets and code | Editable cells and formulas | Vendor and plan dependent |
| Share with link | Possible through deployment settings | Yes | Usually account based |
| Year-1 cost at 5 users | $39.99 template cost | Template cost plus build hours | Can become hundreds or thousands per year |
| Consulting billing fit | Quotation, project, invoice, payment and audit flow | Only if custom built | Often broader, less editable |
Who Should Use This Template
- Independent consultants managing quotations, projects and invoice follow-up in one small team.
- Consulting firms that work across INR and USD clients and need currency-aware billing records.
- ERP, training, IT, marketing, finance or operations consultants who convert proposals into paid projects.
- Owners who want an editable Apps Script system instead of separate quotation, client and invoice spreadsheets.
Real-World Use Cases
A boutique implementation partner: The team tracks prospects in Quotations, marks won deals, converts them into projects and reviews outstanding balances before the weekly partner meeting.
A GST-registered consulting office: The accounts user manages GST invoice details, export/LUT fields, receipts and partially paid invoice status while the owner checks payment trends.
A solo consultant with international clients: INR and USD billing stay separated by currency, and reports show whether quotation value is turning into won projects and collected payments.
Advantages of Consulting Project and Billing Management System Web App
The main advantage is consolidation. Quotations, clients, projects, payments, invoices, reports, settings and audit history are part of one connected system instead of separate files. Because it is built on Google Apps Script, it can be deployed from your own Google account and adjusted as your workflow changes. The template also keeps billing close to delivery, so a project balance or invoice status is visible when the team is reviewing project progress.
Opportunities for Improvement
This is an editable template, not a fully hosted enterprise PSA product. Teams that need built-in payment gateway settlement, native accounting sync, automatic tax filing, SSO, client portals or vendor-managed support will still need additional tools or customization. Larger consulting firms should also test Google Apps Script quotas, permission settings and data volume before using it with live client records.
Best Practices
- Set company details, GST fields, invoice formats and currency rules before entering live records.
- Clean service names, SAC codes, country values and payment modes in List Management first.
- Use quotation status and follow-up date consistently so the pipeline dashboard stays meaningful.
- Record every invoice reference and payment transaction number to simplify reconciliation.
- Review the Audit Log during early use to confirm setup changes and manual overrides.
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Frequently Asked Questions
What is the Consulting Project and Billing Management System Web App?
It is a downloadable Google Apps Script web app template for managing consulting quotations, clients, projects, invoices, payments, reports, settings, users and audit history.
Does it replace a paid consulting CRM or PSA system?
It can replace many internal trackers for small consulting teams, but it is not a full enterprise PSA. Teams needing accounting sync, SSO, portals or managed hosting may need extra customization or a SaaS platform.
Can it track quotation follow-ups?
Yes. The Quotations module includes quotation status, follow-up date, source filters and actions for view, win conversion, edit and WhatsApp follow-up.
Can it manage GST and export invoices?
Yes. The Invoices and Settings screens include GST invoice, export invoice, tax or LUT treatment, GSTIN, GST percent, SAC code, LUT/ARN number and export declaration notes.
Can it separate INR and USD billing?
Yes. Currency appears across quotations, clients, projects, payments, invoices and reports, and the dashboard includes revenue split by currency.
Is the source editable?
Yes. After purchase, you deploy your own copy and can adjust sheets, settings, dropdowns and Apps Script code to match your consulting workflow.
About the Author
Built by PK – Microsoft Certified Professional with 15+ years of Excel, Google Sheets, and Power BI experience. Founder of NextGenTemplates, reaching 300K+ subscribers across YouTube channels. Every template is hand-built and tested before release.
Conclusion
The Consulting Project and Billing Management System Web App is designed for consulting teams that have outgrown scattered proposal, client, project and invoice files but do not want to start with expensive monthly software. It gives you a structured, editable system for quotation follow-up, project conversion, GST and export invoices, payments and reporting in one browser-based workflow.
Click here to purchase the Consulting Project and Billing Management System Web App.
For more Google Apps Script and automation tutorials, visit YouTube.com/@NeoTechNavigators.
Last updated: July 27, 2026.
