Inventory & Tax Tracking App

@Microlent

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Android, API Development, Mobile App Development, iPhone, User Interface / IA As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@diektech

Hello, I’m Elias, a Miami-based senior software engineer with 20 years of experience in mobile app development. I specialize in cross-platform solutions and have a strong background in inventory management systems. I understand that your goal is to build an app that helps small shops manage their inventory and tax compliance effectively. I have built similar applications that focus on secure architecture, responsive user interfaces, and scalability. My approach to your project would involve these phases: 1) Understand the specific business workflows and tax requirements. 2) Design a user-friendly interface and establish the app architecture. 3) Develop core features for inventory tracking and tax calculations. 4) Conduct thorough testing to ensure compliance and performance. 5) Deploy the app and provide ongoing support. Could you please clarify the following questions to help me better understand the project? 1) What specific inventory workflows do you want to support? 2) Are there third-party APIs you plan to integrate for tax compliance? 3) How do you envision managing user roles and permissions? I have successfully completed similar projects before. Most of my work in this area was under NDA, so I can't share links, but I would be happy to discuss the architecture and features in detail. Additionally, I can ensure a maintainable codebase, making future updates easier.

@corpmember29

Hello, INVENTORY & TAX TRACKING MOBILE APP {{{ I HAVE CREATED SIMILAR INVENTORY, POS & MOBILE APPS BEFORE AND I CAN SHOW YOU }}} I read your requirements carefully and understand that you need a CROSS-PLATFORM IOS & ANDROID INVENTORY + TAX MANAGEMENT APP that handles stock, barcode scanning, sales, purchase costs, VAT, Corporation Tax, reporting, and offline operation. I have 11+ years of experience in MOBILE APP, POS, INVENTORY, DATABASE, AND FULL-STACK DEVELOPMENT. I recommend FLUTTER for a single scalable codebase with a native-feeling experience on both platforms. I can implement INVENTORY CRUD, AUTOMATIC BARCODE GENERATION, CAMERA/PHYSICAL BARCODE SCANNING, SALES PROCESSING, PURCHASE PRICE TRACKING, STOCK DEDUCTION, PROFIT CALCULATION, AND HISTORICAL COST MANAGEMENT. The TAX ENGINE can support MULTIPLE VAT RATES and configurable CORPORATION TAX rules, with transparent calculations. I can also implement the GLOBAL ACCOUNTING-style logic you mentioned, including automatic calculations when purchase prices change—for example, if an item is purchased at 80% of its previous/reference price, the system can automatically calculate the COST, MARGIN, VAT, PROFIT, AND TAX IMPACT. I will build a CLOUD DATABASE with OFFLINE CACHING so staff can continue selling during connectivity issues, with automatic synchronization when the connection returns. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. Thanks, Christina

@Hammadhassan21

Howdy, The real challenge here is making inventory, barcode scanning, purchasing, margins and VAT calculations work together as one reliable system. I’d use Flutter for a single iOS and Android codebase, with a cloud backend and local offline caching so sales can continue even during network interruptions. I would build the pricing and tax engine to handle changing purchase costs, historical pricing, configurable VAT rules and margin calculations. The dashboard can then provide a clear view of stock, gross profit, purchase costs, and tax due, with exportable reports for management. I can show you similar inventory and mobile app examples in chat and explain the architecture I would recommend. Once you provide the exact tax rules and sample calculations, I can map them into the engine and provide a more accurate timeline. Portfolio link: https://www.freelancer.pk/u/Hammadhassan21 Best regards, Hammad Hassan

@rajat07me

The hard part here is not just building stock screens; it’s making barcode sales, offline syncing, and VAT/corporation-tax logic stay accurate together in real shop use. I’d approach it with Flutter for one codebase, a cloud backend with local cache, and a transaction flow that logs cost, sale price, tax, and stock movement cleanly so reporting stays reliable. I’ve worked on custom business systems where speed at checkout and data consistency mattered more than flashy UI. For this kind of app, Flutter is my preferred route because it gives near-native performance on iOS and Android while keeping the architecture easier to maintain as features like exports, permissions, and tax rules expand. For a smoother launch, I can also structure the MVP so store staff can start using sales + stock first, then extend reporting in phase two. - Do you want barcode labels printable directly from the system, or only generated/scannable in-app first? - Should VAT and corporation tax be calculated per line item, per sale, or both for audit reporting? - Do you already have a preferred backend stack for auth/database, or should I propose one?

@Hubready

Hello!, I am a US-based senior software engineer and I’d love to help build your Inventory & Tax Tracking App. The hard part here is not just building a mobile app it’s making inventory, tax logic, and data sync stay accurate and simple for small shop owners on both iOS and Android. That kind of project needs clean planning first, otherwise it gets messy fast. My approach: 1. Confirm the tax rules and inventory workflow 2. Design a clear mobile UX for quick daily use 3. Build a solid backend/API with reliable data storage 4. Test edge cases like stock changes, tax calculations, and offline behavior 5. Polish the app so it feels fast and easy to trust I pay close attention to the details that usually cause problems later, and I’m serious about building something that works properly in the real world, not just in a demo. Relevant work includes: - A cross-platform retail stock app - A compliance-focused billing dashboard - A mobile ordering app with live inventory sync - A cloud operations tool for a multi-location shop Could you please clarify the following questions to help me better understand the project? 1. Which tax rules need to be supported at launch, and do they vary by region or product type? 2. Does the app need to sync with an existing POS, accounting system, or database? 3. Should inventory updates work offline and sync later, or is constant connectivity expected? If helpful, I can also suggest the best MVP scope for this budget. James Zappi

@asifalimzd

Hi, I can build this cross-platform inventory and tax management app with Flutter, covering barcode generation/scanning, inventory and sales tracking, offline caching, cloud sync, dashboards, and exportable reports. I’ll also structure the tax engine to support configurable VAT rates and accounting rules, automatic purchase-price tracking, and pricing logic such as calculating an item’s cost when purchased at 80% of its standard price, so the system can handle different VAT levels and accounting scenarios accurately. Can you share the exact VAT, Corporation Tax, and 80% purchase-pricing rules you want supported so I can plan the calculation engine correctly? Kindly send me a message to discuss more or directly award me. Thank you!

@webbookstudio

Hi there, We understand you're looking to develop a comprehensive cross-platform inventory and tax tracking app for small shops, enabling them to efficiently manage stock and tax obligations. The app should feature inventory management with barcode creation and scanning, accurate tax calculations, dashboard reports, and a cloud-based database with offline caching. Our team at Webbook Studio has experience with similar projects, such as a music voting mobile app built with React Native and a furniture store mobile shopping app developed with Flutter. We're proficient in frameworks like React Native and Flutter, which can provide a smooth, native-feeling UI on both iOS and Android platforms with a single codebase. We can deliver a fully functional MVP, followed by a full release, incorporating features like global accounting, auto purchase price calculation, and support for different VAT levels. One question: Have you considered integrating any third-party services for tax compliance or accounting, or would you prefer a custom solution? Feel free to message us to discuss the details! — Webbook Studio

@gutibs

Hi! This is something we can definitely handle — the offline-first requirement combined with real-time tax calculation is the kind of technical challenge we enjoy working through properly. Before I put a firm proposal together, the one thing that shifts the architecture significantly is the tax logic itself. VAT is straightforward with configurable rates, but Corporation Tax depends on whether you need it calculated per transaction or accumulated and reported periodically — and whether the rules need to cover multiple jurisdictions or just one. That changes how we model the tax engine, so I'd need the exact rules and rate structures before committing to the calculation layer. On how we'd build it: React Native with Expo is our recommendation for the cross-platform layer — native feel on both iOS and Android, single codebase, and well-tested for barcode scanning workflows. The backend would be a REST API backed by PostgreSQL, handling inventory, sales records, and tax ledger. For offline support, we'd cache pending transactions on-device and sync when connectivity returns, so the checkout flow never depends on the network. Barcode generation and scanning are standard at this point and well within that stack. The margin calculation you mentioned — buying at 80%, surfacing what that means for pricing — fits naturally into the item setup flow. Gustavo & the DoTheCode team

@shivmirthyusl

Hi, Drawing from over 19 years in the business, I lead a dedicated team of more than 40 proficient Web and Mobile App developers who are adept at crafting creative solutions tailored to meet your specific needs. Not only have we amassed substantial experience completing 483+ successful projects, but we also possess robust familiarity with building Inventory and Tax -related applications like the one you're proposing. For instance, we recently developed a cloud-based solution that performed seamless inventory management and automatic tax calculations for a similar retail client. In alignment with your needs, our technical skill set is geared towards single codebase construction for both iOS and Android like Flutter or React Native offer; this would save you considerable time and cost, all while maintaining native-like UI experiences. Our proficiency extends to barcoding systems creation/scanning, cloud-based database setup with offline caching to ensure uninterrupted service even during a network outage, and generating accurate tax calculations even at different VAT levels on a global scale. Combining these competencies with the reliability and scalability that have always been the hallmark of our work; we believe you'd find partnering with us. Thanks, SBM

@XpertLabIndia

Hi, You need an iOS + Android inventory app with barcode scanning, automatic stock updates, flexible VAT/Corporation Tax calculations, profit reports, and offline support. We can build this in Flutter with a secure cloud backend and offline-first sync, including automatic purchase-price/margin calculations and support for different VAT rates. We can handle the complete app, backend, tax engine, UI, testing, and store deployment. We can share relevant inventory projects, MVP/full-release timeline, and fixed cost in chat. Could you share the tax jurisdiction and sample calculations you’ll provide for validation? Thank You Rohan

@Curveballsol

Hello, I understand that you need a cross-platform Inventory & Tax Tracking App for small shops to manage stock and tax obligations efficiently. I propose to develop a solution that allows for seamless inventory management, barcode generation, real-time tax calculations, and intuitive user permissions. With expertise in Mobile App Development, Android, User Interface / IA, App Design, and iPhone, I am confident in delivering a high-quality, native app experience on both iOS and Android platforms. I will ensure effective communication throughout the project to meet your requirements effectively. You can view my portfolio here: https://www.freelancer.com/u/Curveballsol Best regards, Curveball Solutions

@rbtech1984

Hello!! The inventory and tax tracking app will centralize products, stock movements, purchases, sales, expenses, and tax records in one simple system with accurate calculations and useful reporting. * Do you already have the tax rules and calculation logic defined? * How many product categories or warehouses will be managed? * Should users receive low-stock and tax reminders? The solution will include product and inventory management, stock in/out tracking, purchase and sales records, tax calculation, expense tracking, dashboards, reports, search and filters, user roles, notifications, and secure database handling. The interface will be responsive and easy for daily business use. Relevant inventory, accounting, tax, database, dashboard, and business management projects have been completed before, focusing on accuracy and simple workflows. Let us discuss your current process in chat and plan the best solution. Best regards Farhin B

@pragyadeveloper

Hi, I can build this as a cross-platform inventory and tax management solution with a single production-ready codebase for iOS and Android. AFROSTAR For this project, I’d recommend REACT NATIVE/Flutter + PostgreSQL/Supabase, with local offline storage and cloud synchronization. The system can support: Inventory CRUD with automatic unique barcode generation Camera/in-device barcode scanning and physical scanner support Real-time stock deduction and sales tracking Purchase price, selling price, margin and profit calculations Flexible VAT rates, including multiple VAT levels and tax-exempt items Configurable Corporation Tax calculations based on your supplied rules Automatic calculations when purchasing at discounts Historical purchase-cost tracking and weighted/average cost options Dashboard for stock, revenue, gross profit and estimated tax liability CSV/PDF reporting and accounting-ready exports Offline sales with automatic synchronization when connectivity returns Secure authentication and staff permissions Cloud database, backups and audit history Estimated timeline: MVP: 6–7 weeks I can start with the architecture and tax/calculation model, then develop the inventory, POS/scanning, offline sync, reporting and mobile deployment in clear milestones. I’d be happy to review your exact VAT/Corporation Tax rules and sample transactions to ensure calculations meet the 0.1% acceptance requirement. Regards Praggya

@ciss26

Hi there, Hope you are doing well I’d love to develop your Inventory & Tax Tracking App for iOS and Android. I understand the goal is to create a reliable, easy-to-use system where small businesses can manage inventory, barcode-based sales, purchasing, pricing, and tax calculations from one platform. I have experience developing inventory, POS, accounting, ERP, and business management applications, including offline-capable mobile apps and cloud-based backends. Proposed Technology Stack Mobile: Flutter – single codebase for iOS & Android Backend: Node.js / NestJS Database: PostgreSQL Core Features Inventory CRUD: add, edit, delete and adjust stock Automatic unique barcode generation for every product Camera-based and physical barcode scanning Fast checkout and automatic stock deduction Purchase price, selling price and historical cost tracking Automatic profit and margin calculations Multiple VAT rate configuration Corporation Tax calculation based on the provided tax rules Global/accounting-style tax configuration where required Tax-inclusive and tax-exclusive pricing support Automatic calculations when purchasing products at discounted rates, such as 80% of the standard/reference price Dashboard for stock, sales, gross profit and tax liability Exportable inventory, sales and tax reports Cloud synchronization with offline caching Secure authentication and staff access Configurable business and tax settings Thanks & Regards Dheeraj K.

@Eliteinno

Hey, The difficult part is keeping inventory, purchasing costs, sales, offline changes, and tax calculations consistent across both platforms. I’d structure the app around a shared data model with barcode based stock updates, configurable VAT and Corporation Tax rules, and offline caching that synchronises safely when connectivity returns. The purchasing logic also needs to handle changing costs, such as automatically recalculating margins when an item is bought at 80% of its previous cost, while keeping the tax and reporting data transparent. Flutter would be a practical choice for maintaining one codebase across iOS and Android. Do you already have the exact VAT and Corporation Tax calculation rules, including the different VAT rates and purchasing cost adjustments?

@zainalitariq245

Hi i can show you my similar live published tracking platforms in chat, The biggest challenge is making inventory, barcode scanning, offline sales, and tax calculations stay accurate together. The pricing logic also needs to handle changing purchase costs, VAT rates, margins, and Corporation Tax without creating confusing results for staff. I would build the MVP with Flutter and a cloud database with local offline caching, using a structured calculation engine so tax rules and purchase costs can be updated without rewriting the app. If an item is purchased at 80 percent of its reference price, for example, the system can automatically calculate the effective cost, margin, VAT, and estimated tax based on your configured rules. I can also handle barcode generation, scanning, reports, authentication, testing, and store deployment. A strong business idea is adding automatic margin alerts when purchase prices change, helping shop owners adjust selling prices before profits are affected. Which country’s VAT and Corporation Tax rules should the calculation engine support first?? PS: You’ll get competitive rates with the quality you deserve. After discussing your requirements ican suggest the best scalable approach and provide an estimated timeline and cost. My portfolios, https://www.freelancer.pk/u/zainalitariq245 Looking forward to discussing your project further. Best Regards, Zain A.

@temoberishvili

Hey, I see you're diving into building a cross-platform inventory and tax tracking app for small shops. That’s a crucial tool for helping businesses streamline their operations and stay compliant. I have over 10 years of experience in mobile development, and I’m confident I can help you create a user-friendly app that meets your needs. I specialize in both native app development for iOS and Android, and I’m well-versed in inventory management and tax compliance features. My background in cloud computing and API development will ensure the app is robust and scalable. I’ll focus on crafting an intuitive UI that small shop owners will love, making it easy for them to track their inventory and manage tax details seamlessly. Looking forward to discussing how we can make this app a success together! Clarification Questions 1. What specific inventory management features do you envision as essential for the app? 2. Are there any particular tax compliance regulations you’d like to prioritize based on your target market? 3. How do you plan to handle user authentication and data security for the app?

@flapjakc

Hi, Mateo here, from Toronto. Offline-first inventory with real-time tax calculation is the genuinely hard combination here, a sale happening with no network connection still needs to deduct stock and compute VAT correctly locally, then reconcile cleanly once sync resumes, so I'd build the tax and inventory logic to run entirely client-side against locally cached rules, with the cloud database as the source of truth that syncs in both directions rather than something the app depends on being reachable at checkout. I'd build this in Flutter for one codebase across iOS and Android, barcode generation and scanning wired directly into the CRUD flow, configurable VAT/Corp Tax rules stored as data rather than hardcoded so rate changes never require a rebuild, and role-based permissions enforced at the API layer, not just hidden in the UI. Given the real scope, inventory, barcode scanning, tax engine, offline sync, reporting dashboard, I'd propose Phase 1 around the core inventory-to-checkout loop with accurate tax calculation and offline caching, since that's the foundation everything else, reports, dashboards, permission tiers, builds on top of. Looking forward to working with you.