
Closed
Posted
Paid on delivery
Project Overview: Need a Cross-Platform Mobile App (Android & iOS) using Flutter or React Native. It’s a Multi-User SaaS-based Expense Tracking and VAT Reporting application. Key Features & Requirements: 1. User Authentication & Subscriptions - Sign up / Login for normal users. - Stripe Payment Gateway Integration to charge users a subscription fee (Monthly/Yearly) to access the app. 2. Expense Entry Form Users can log their daily expenses with the following fields: - Supplier Name (Should pull from a Supplier Master list created by the user). - Invoice Number - Sub Total (Base Amount). - Tax Selector (Toggle between With VAT and Without VAT). - VAT/Tax Calculation (Fixed at 20%. If Sub Total is 100, it should auto-calculate Tax as 20 and Grand Total as 120). - Grand Total (Auto-calculated: Sub Total + Tax). - Attachment (Option to upload/attach Invoice PDF or image). 3. Quarterly VAT Reporting - The system must automatically segregate expense data into 4 Quarters (Q1, Q2, Q3, Q4) for the financial year. - Generate reports showing how much total VAT the user needs to pay to the government for that specific quarter. - Export Options: Users must be able to export these quarterly reports into Excel (.xlsx) and PDF formats. 4. Super Admin Panel (Web-based) A basic dashboard for the app owner to: - Manage users and view total active/expired subscribers. - Monitor subscription revenue. Deliverables Expected: 1. Complete source code for Android & iOS. 2. Backend & Database setup. 3. Admin Panel. 4. Publishing the apps to Google Play Store and Apple App Store.
Project ID: 40526117
62 proposals
Remote project
Active 1 day ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
62 freelancers are bidding on average ₹27,888 INR for this job

Hello, I have 10+ years of experience in mobile and SaaS application development using React Native, Flutter, Node.js, Laravel, PHP, and cloud-based architectures. I can build your multi-user Expense Tracking and VAT Reporting application with a scalable backend, subscription management, and a comprehensive admin dashboard. I recommend React Native or Flutter for cross-platform development, with Node.js/Laravel and PostgreSQL for the backend. The application will include secure authentication, Stripe subscription billing, supplier management, expense tracking with document uploads, automatic VAT calculations, quarterly VAT reporting, and PDF/Excel exports. Additionally, I will develop a web-based Super Admin Panel for user management, subscription monitoring, and revenue reporting. The solution will be designed with clean architecture, secure data handling, and future scalability in mind. I can deliver complete source code, backend setup, admin panel, documentation, and assist with publishing the apps to both Google Play Store and Apple App Store. Best regards
₹25,000 INR in 7 days
7.1
7.1

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django and php CodeIgniter mvc and Laravel. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹25,000 INR in 7 days
6.6
6.6

As a seasoned Full Stack Developer and Digital Solutions Expert with over 10 years of experience under my belt, I have designed, developed, and deployed numerous cross-platform solutions just like the one you're looking for. I have hands-on proficiency in Android, iOS as well as Mobile App Development using React Native, which means I can masterfully navigate the challenges that might arise while making the SaaS app you envisioned a reality. Not only can I handle the frontend designing but also provide a robust and efficient backend setup for an unparalleled user experience. Being well-versed with Stripe Payment Gateway Integration, authentication protocols as well as database management, I assure you that your requirements of User Authentication & Subscriptions will be met in the most seamless manner possible. Furthermore, my past record manifests my capacity to manage enormous data sets effectively. Having developed various topsy-turvy applications dealing with taxing calculations and automations -your VAT Reporting torment is something I already have an apparatus ready for. The cherry on top is that my skills extend to API Development & Integrations too
₹27,500 INR in 7 days
6.4
6.4

Hi, I’m interested in working on your expense tracking and VAT reporting application. The project is well defined, and I understand that it involves much more than building a mobile app—it requires a reliable backend, subscription management, reporting, and an admin dashboard that all work together seamlessly. I have experience developing cross-platform applications with Flutter, integrating REST APIs, authentication, payment gateways, and cloud databases. Features like supplier management, expense entry with invoice attachments, automatic VAT calculations, and quarterly report generation can all be implemented in a clean and scalable way. Looking forward to working with you. Best regards, Pavan
₹20,000 INR in 15 days
6.0
6.0

✋ Hi there. I can build your cross-platform expense tracking app with Flutter, handling authentication, subscriptions, and VAT reporting. ✔️ I have built similar SaaS mobile apps with Flutter and Node.js, including an invoicing app with Stripe subscriptions and automated report generation. ✔️ I will develop the user auth and Stripe payment flow, create expense forms with VAT toggle and attachment upload, build quarterly VAT reports with Excel and PDF export, and set up a web-based admin panel for subscriber management. Let's chat about your backend preferences and timeline. Best regards, Mykhaylo
₹25,000 INR in 7 days
5.4
5.4

With my extensive programming experience spanning over a decade, primarily in mobile app development across a range of platforms, including Flutter and React Native, I am well-equipped to deliver this project with immense proficiency. My prowess extends beyond front-end work to comprehensive backend and database structuring. This nuanced understanding of software ecosystems would enable me to execute and integrate the various components your project demands effortlessly. More specifically, I bring extensive experience in building SAAS systems and multi-user apps alongside utilizing popular payment gateways such as Stripe. Additionally, developing expense tracking modules will be seamless as I have built similar features in the past, demonstrating my familiarity with automated VAT reporting tools and generating exports in formats like Excel and PDF. Lastly, while delivering the complete source code for both Android and iOS platforms along with a comprehensive web-based super admin panel, I advocate for efficient management systems for scaling applications. This can be experienced through my past work with analytics on user data and subscription revenue monitoring. Time-management is crucial to me, ensuring the project will be completed within stipulated timeframes without any compromise in product quality no matter how complex or intricate the project is. Let's make your vision come true!
₹25,000 INR in 7 days
6.2
6.2

As an experienced Full Stack Web and Mobile App Developer, I have the perfect skillset to deliver the Cross-Platform Expense Tracking SaaS App you're looking for. With more than 5 years in the field, my expertise in building applications from scratch on time and within budget makes me the perfect fit for this project. I’m well-versed in both Flutter and React Native, which are your desired frameworks for creating a powerful cross-platform app. My skills extend from frontend with React.js to backend Node.js to mobile development with React Native. This proficiency ensures that I can seamlessly integrate the user-facing functionalities with the database management needed for this multi-faceted project. Additionally, I have a strong background in API integration and creating high-performing databases which will be critical in implementing your subscription model through Stripe Payment Gateway. My expertise also includes VAT Reporting and generating exports in Excel and PDF formats, aligning perfectly with your desired functionalities. So let's collaborate! I'd be thrilled to work diligently to create a premium quality app that will exceed your expectations and help users track their expenses effortlessly across multiple platforms
₹25,000 INR in 7 days
5.5
5.5

Hi, What stood out to me is that this isn't just an expense tracker—it's a SaaS platform where **subscription billing and VAT reporting accuracy** are critical. I can build the complete solution in Flutter, including: ✅ Stripe Monthly/Yearly Subscriptions ✅ Supplier & Expense Management ✅ Automatic 20% VAT Calculations ✅ Invoice PDF/Image Uploads ✅ Quarterly VAT Reports (Q1–Q4) ✅ Excel & PDF Exports ✅ Super Admin Dashboard ✅ Google Play & App Store Publishing The key here is designing the database and reporting structure correctly from the start so VAT calculations, exports, and subscription management remain accurate as your user base grows. One quick question: Will subscriptions be managed through Stripe only, or do you also need Apple/Google in-app subscriptions for store compliance? I'm available to discuss the architecture, timeline, and the fastest path to launch.
₹25,000 INR in 7 days
5.8
5.8

Hi, I’m Karthik, a Full Stack Architect with 15+ years of experience building SaaS platforms, FinTech applications, mobile apps, and subscription-based systems. I can develop your cross-platform Expense Tracking & VAT Reporting SaaS application using Flutter with a scalable backend and web-based admin panel. ✔ User registration and secure authentication ✔ Stripe subscription billing (Monthly/Yearly plans) ✔ Expense management with supplier master data ✔ Automatic VAT calculation (20%) and totals ✔ Invoice image/PDF uploads ✔ Quarterly VAT reporting (Q1–Q4) ✔ Excel and PDF report exports ✔ Multi-user SaaS architecture ✔ Web-based Super Admin Dashboard ✔ Subscriber and revenue monitoring ✔ Android & iOS deployment support My approach focuses on creating a clean, user-friendly application with secure data handling, scalable architecture, and accurate VAT reporting automation. Deliverables include complete source code, backend setup, database, admin panel, documentation, and assistance with Google Play Store and Apple App Store publishing. Regards, Karthik 15+ Years Experience | Flutter | SaaS Development | FinTech | Mobile Applications
₹50,000 INR in 7 days
5.1
5.1

As an experienced freelance web and software developer, I specialize in the very task you've laid out - the creation of scalable, efficient, and high-impact digital systems. My skill set encompasses not just mobile app development, but also PHP and SaaS - three pillars essential to building your cross-platform Expense Tracking SaaS App. Having worked with a broad range of international clients, I understand how to tailor a product to meet complex needs based the scope of your project. What really sets me apart is my innovative-first thinking and my ability to future-proof products. I take into account how technology remains ceaselessly on the move. Your cross-platform app must seamlessly integrate Supplier Master lists as well as automatically calculate VAT based on a fixed percentage. Trust me to implement these features while remaining adaptable for any future changes. Lastly, my commitment to quality and client-centered approach will ensure your vision is translated accurately into a system that not only works efficiently but serves your business goals. So, let's build something transformative - an Expense Tracking SaaS App that simplifies the lives of many users while aiding businesses in better managing their expenses and VAT files. Allow me the opportunity to utilized my comprehensive skillset to create this for you.
₹25,000 INR in 5 days
4.3
4.3

The VAT logic is the core here — we'd build the expense form so the 20% tax auto-calculates live (Sub Total 100 → Tax 20 → Grand Total 120), with the With/Without VAT toggle driving it, and Supplier Name pulling from a user-owned Supplier Master list. We'd build it in React Native (Android + iOS from one codebase) with a Node backend, Stripe for monthly/yearly subscriptions, and quarterly auto-segregation (Q1–Q4) producing .xlsx and PDF exports. The web Super Admin panel covers users, active/expired subscribers and revenue. We've shipped React Native SaaS apps with Stripe subscriptions and PDF/Excel reporting before. Store publishing goes to your own Play Store and App Store developer accounts. Ping me and we can lock the data model and milestone plan.
₹35,000 INR in 35 days
4.5
4.5

My team and I take great pride in our ability to turn your software ideas into powerful, scalable products that resonate with your business needs. We check all the boxes your project requests: from cross-platform mobile app development using Flutter or React Native for Android and iOS, to user authentication and subscription management (we will handle the Stripe Payment Gateway Features for you!), and of course a well-structured expense tracking system that includes automatic VAT calculations, quarterly VAT reporting and data export options. Additionally, our expertise in cloud solutions (AWS, Azure, Google Cloud) and Salesforce integration ensures a rock-solid, scalable backend architecture and admin panel experience for you. Offering complete source code accompanied by setup assistance, we guarantee a streamlined process to publish your app on both Google Playstore and Apple App Store. Our track record doesn't just stop at proficiency but also delivering on time with real business value. We offer API development & third-party integrations; these come in handy when syncing different components and specific needs of your business operations. And not to forget AI Development: leveraging large language models (LLMs), AI agents, and more for intelligent automation. With us at the helm of your project, you can rest assured of an optimized performance solution delivered on time, every time. Choose the right fit for a successful project! Choose us!
₹25,000 INR in 7 days
3.9
3.9

As a seasoned Full Stack Developer with over 5 years of experience, I believe that my skill set is tailor-made for your cross-platform expense tracking SaaS app. My deep understanding of both Flutter and React Native will enable me to optimize the performance of your app while delivering a seamless user experience across Android and iOS platforms. Implementing your key features, like the User Authentication & Subscriptions and Expense Entry Form would be a breeze for me as I have prior experience in integrating Payment Gateways using Stripe as well. Another aspect where I can prove to be invaluable is in setting up the Quarterly VAT Reporting system. My meticulous and detail-oriented approach ensures absolute accuracy, even when handling complex calculations such as tax segregation in finance-related applications. I would also provide you backend & database setup that's future-proof, secure, and scalable. Lastly, my services don't just end with delivering the app. I ensure assistance throughout the entire process - from publishing it on Google Play Store and Apple App Store to addressing any issues post-launch; you can count on me to have everything streamlined. Let us join forces and turn your noble idea into a practical, user-friendly reality. Choose me, Kishan Kumar, so together we can build a lasting impact!
₹40,000 INR in 7 days
3.5
3.5

With over 5 years of professional experience, I have established myself as an expert in Full-Stack Web & Mobile App Development, Business Automation, and Project Management. I have successfully completed 40+ projects in a range of industries including SaaS Applications, E-commerce, and CRM Systems - making me the ideal candidate for your Cross-Platform Expense Tracking SaaS App. The extensive skillset I bring to the table includes proficiency in Flutter and React Native - exactly what you need for your mobile app requirements. As an experienced developer in both Android and iOS platforms, I can guarantee the development of a highly-functional cross-platform mobile application for you using Flutter or React Native. Moreover, my knack for Workflow Automation will prove beneficial in implementing features like User Authentication & Subscriptions and Quarterly VAT Reporting with ease and efficiency. My clients greatly appreciate my clean coding practices, agile methodologies, and on-time delivery. So, if you're looking for a reliable and collaborative partner who can adeptly manage your project while delivering exceptional results - then look no further! Let's discuss your project further and optimize your expense tracking system together.
₹25,000 INR in 7 days
3.7
3.7

The core functionality is straightforward, but the success of this project will depend on getting the subscription, VAT reporting, and document management workflows right from the start. I would approach this as a SaaS product rather than just a mobile app. Key areas I would implement: • Secure user authentication and account management. • Stripe subscription billing with monthly and yearly plans. • Supplier Master module so users can maintain their own supplier database. • Expense management with automatic VAT calculations (20%), invoice tracking, and attachment uploads. • Quarterly VAT reporting engine that automatically groups expenses into Q1–Q4 and calculates VAT totals. • PDF and Excel export generation. • Web-based Super Admin dashboard for subscriber management, subscription monitoring, and revenue visibility. • Backend APIs and database designed to support future growth and additional accounting features. One area I'd like to clarify before proposing the final architecture: Should VAT reports be generated for a single fixed tax jurisdiction with a permanent 20% rate, or do you expect different VAT rates/countries to be supported in future versions? The answer affects how the reporting engine and database should be designed from day one.
₹25,000 INR in 7 days
3.3
3.3

Hello, I noticed you're mixing a subscription billing flow with VAT math and quarterly reporting, which means the app needs a reliable backend data model for invoices, VAT state (with or without 20%), and quarter boundaries, not just front-end forms. Also, attachments add a performance and storage decision early on, especially if we want exports that still look right every time. First, I'd set up the backend and database schema for multi-user expenses, supplier master (per user), and a VAT reporting table that can deterministically generate Q1 to Q4 without re-parsing old entries. Then I'd implement Stripe subscriptions (monthly and yearly), wire authentication to those entitlements, and build the expense entry logic so Sub Total drives Tax and Grand Total automatically with a 20% fixed rule. After that, I'll handle PDF and Excel exports for each quarter, and then the super admin web dashboard for revenue and subscriber states. I'll also include publishing assistance for both stores. Do you already have a backend/DB picked (Firebase, AWS, custom), or should I design it from scratch?
₹12,540 INR in 28 days
2.5
2.5

⭐ Hi there ! Let's set meeting schedule for ur project more detail . VAT SaaS is not just expense entry The hard part is clean quarter logic subscription access and export data that accountants can trust Built similar mobile admin systems with Flutter Firebase Stripe and PHP APIs where users uploaded invoice images synced data and exported PDF Excel reports For this app normal users supplier master invoice subtotal 20 percent VAT grand total and attachment flow can be handled cleanly with role based DB tables and bg upload queue Super admin can track active expired users and Stripe revenue in a simple web panel without overbuilding v1 App Store and Play Store publishing also need proper build signing privacy policy and test login prep Should financial year quarters follow UK VAT dates or custom dates per user Timeline : 28 days Total Budget : 37500 INR
₹37,500 INR in 28 days
2.4
2.4

Hello, I can build your SaaS-based expense and VAT reporting application using Flutter with a scalable backend, Stripe subscriptions, automated VAT calculations, quarterly reporting, export functionality, and a web-based admin panel. I’ll deliver complete source code, backend setup, app publishing support, and a maintainable architecture designed for future growth.
₹25,000 INR in 7 days
2.2
2.2

Hi, I can build the complete Expense Tracking and VAT Reporting platform including the mobile app, backend, admin panel and subscription system. I had a look at your requirements and would be glad to help. It fits well with my experience and I’m confident I can deliver exactly what you’re looking for. I can get started right away and will keep communication clear throughout the project. The key part of this project is making the VAT reporting accurate and automatic. Users should be able to record expenses in seconds while the system handles VAT calculations, quarterly segregation and report generation in the background. What you'll receive: ✓ Cross-platform mobile app for Android and iOS ✓ Stripe subscription integration ✓ Expense management with invoice attachments ✓ Automated VAT calculations and quarterly reports ✓ PDF and Excel exports ✓ Secure backend and database ✓ Web-based admin dashboard ✓ Complete source code ✓ App Store and Play Store publishing support I focus on building products that are stable, easy to maintain and ready for real users. My goal is not just to develop the features but to deliver a complete SaaS product that you can launch and grow. Let's discuss your workflow and reporting requirements so I can suggest the best architecture and provide an accurate timeline for development. Best regards, Shubham
₹25,000 INR in 7 days
1.4
1.4

Hey there! ? Expense tracking apps are everywhere, but VAT reporting that actually works? That's the differentiator. Most apps give you a spreadsheet dump and call it a report—but your users need to know exactly what they owe the government, quarter by quarter, without touching a calculator. Get that wrong and your app becomes a liability, not a tool. ? You've got a clear SaaS model with subscriptions, supplier master lists, auto-VAT calculation at 20%, and quarterly reports with Excel/PDF exports. That tells me you understand the accounting workflow, not just the code. The admin panel for monitoring subscribers and revenue is the business brain—equally important. ? For the tech stack, Flutter gives you a near-native feel on both platforms with a single codebase. I'd pair it with Node.js or Laravel for the backend, PostgreSQL for relational data, and Stripe for subscriptions. The VAT calculation is straightforward, but handling quarterly rollover correctly—especially with attachments—needs careful schema design. ? One question: Are the financial quarters aligned to the calendar year (Jan–Mar, Apr–Jun, etc.), or to the UK tax year (Apr–Mar) or a custom fiscal year? That's critical before we build the reporting logic. ? I'll deliver the full app, backend, admin panel, and help with store submission—so you're not scrambling at launch. ? Tymofii
₹25,000 INR in 7 days
1.0
1.0

Rohtak, India
Member since Jun 19, 2026
$15-25 USD / hour
$250-750 USD
₹600-1500 INR
₹1500-12500 INR
₹75000-150000 INR
$250-750 USD
₹12500-37500 INR
$30-250 USD
₹750-1250 INR / hour
$3000-5000 CAD
₹12500-37500 INR
$250-750 NZD
₹1500-12500 INR
$5000-10000 AUD
₹1500-12500 INR
₹400-750 INR / hour
₹1500-12500 INR
$750-1500 USD
$250-750 USD
$1000-1500 USD