HMRC API setup

@mascotindia123

Hello, I can help complete the final HMRC API setup and ensure your application is properly configured for sandbox testing and future production use. I have experience working with secure API integrations, webhook/callback implementations, OAuth-based services, and server-side validation workflows. I can configure the HMRC push-notification callback URL, generate and securely store the push secret, implement the callback endpoint with the required validation and response handling, and verify that HMRC notifications are received and processed correctly. I will also perform sandbox testing to confirm end-to-end functionality for your self-employed tax return and VAT submission workflows. Once complete, I will document where the callback URL, push secret, and related configuration settings are stored, along with any environment variables or deployment considerations required for ongoing maintenance. This is a focused task, and I can start immediately to get your HMRC integration fully operational. Warm Regards, Harpreet Singh

@n2rtechnologies

Hello, I've set up HMRC API integrations before — push notifications, callback URLs, the whole flow. Know exactly where the friction points are and how to structure it cleanly so it doesn't break when you scale. We've been building backend systems and API integrations for 14 years across SaaS platforms, marketplaces, and custom solutions. PHP, MySQL, and solid architecture are our foundation. This is straightforward work for us — HMRC's API requirements are strict but predictable once you've done it a couple times. The bid amount is just a starting point. Once we talk through whether you need webhook retry logic, error handling specifics, or monitoring setup, I'll give you a real number. Let's jump on a quick call so I can ask a few questions about your current setup and timeline. That way there's no guessing. Regards, Nurul Hasan

@raphaelokekeze

Integrating the HMRC API requires precise handling of OAuth2 authentication, secure token management, and structured data exchange. I have extensive experience building backend integrations using PHP and MySQL, ensuring these connections are robust, secure, and compliant with external API requirements. My background includes over 15 years of web development, where I frequently bridge the gap between complex backend systems and frontend interfaces. Whether it's setting up secure server-side scripts or troubleshooting API response errors, I have the technical stack to ensure your HMRC integration functions reliably without downtime. My bid is £30.38 with delivery in 1 days. Send me a message with the specific endpoints you need to connect so we can get started immediately.

@extreamcode

Hi there, I can help you finish the part that often blocks HMRC integrations: the callback flow that must validate cleanly before sandbox notifications will behave reliably. Since your app is already registered and the APIs are in place, I’ll focus on the push-notification callback URL, secure secret storage, and a server endpoint that returns the exact 2xx response HMRC expects. I’ve built and debugged API integrations in PHP/MySQL, including secure webhook endpoints, callback handling, and environment-based secret management. I’ll trace how your backend stores the callback URL and push secret, wire up the endpoint, test sandbox notifications, and confirm the setup is aligned with HMRC’s requirements for self-employed tax return and VAT submission features. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Could you share your current backend stack and where HMRC settings are stored today, so I can confirm the cleanest way to wire the callback endpoint and secret handling? Best regards, Asad

@ZohaibRoy

⭐⭐⭐⭐⭐ Complete HMRC API Setup and Push Notification Configuration ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs and see you're looking for an expert to finalize your HMRC API setup. You don’t need to look any further; Zohaib is here to help you! My team has successfully handled 50+ similar projects for HMRC integrations. I will ensure the callback URL is configured correctly, the push secret is generated, and everything passes HMRC's requirements. ➡️ Why Me? I can efficiently complete your HMRC API setup as I have 5 years of experience in API integrations, specializing in HMRC systems, callback configurations, and secure endpoint setups. My expertise includes testing and validation to ensure everything works perfectly. I also have a strong grip on server security and backend storage solutions. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ HMRC API Integration ✅ Push Notification Setup ✅ Callback URL Configuration ✅ Secure Endpoint Development ✅ API Testing ✅ Backend Storage Solutions ✅ Server Security ✅ 2xx Response Validation ✅ Sandbox Testing ✅ Application Registration ✅ Technical Documentation ✅ Problem-Solving Waiting for your response! Best Regards, Zohaib

@Herculesz

Hi, this looks like a narrow HMRC integration task at the final verification stage, which is usually less about coding volume and more about getting the callback contract and secret handling exactly right. The real engineering risk is not the endpoint itself; it’s making sure HMRC can validate the callback reliably while the push secret is stored and referenced in a way that stays secure and maintainable inside your existing PHP backend. I’ve built several production integrations like this where the application is already registered and the remaining work is to inspect the current backend, wire the missing webhook/callback path, validate the expected 2xx behavior, and test the full event flow end to end. The closest match here is my Custom Feature Development & Integration work, where I dropped into an existing codebase, reviewed the implementation, completed the missing backend pieces, and documented the handoff clearly. I’d approach this by separating configuration, callback handling, and notification verification so the setup is easy to trace later. I also put weight on operational clarity: where the callback URL is defined, where the push secret lives, how it is loaded, and how sandbox tests are reproduced without guesswork. If useful, I can start by reviewing your current callback path and sketching the exact validation flow before making changes. Thanks, Hercules

@onkarkulkarni8

Hi, I'm a PHP developer who builds clean, maintainable backends — not bloated CMS setups. I work daily with core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs, with attention to validation, security (SQLi/XSS), and readable code. For your project I'll start by confirming the exact scope and data model, then deliver in small, testable milestones so you can see progress early. You get clean code, clear commits, and documentation for anything non-obvious. I'd like to understand a couple of specifics before quoting a firm timeline — could you share [the key requirement] and whether there's an existing database/codebase to work with? Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.

@anirudhat

I've worked with HMRC's MTD APIs before, including configuring push notifications and callback endpoints, so I know exactly what's needed here. My approach: I'll set up your secure callback endpoint (HTTPS, correct headers), generate the push secret via HMRC's API, store both the callback URL and secret securely in your backend configuration, and ensure the endpoint returns the proper 2xx acknowledgment that HMRC expects during validation. I'll then run sandbox notification tests to confirm the full flow works end-to-end. I can start immediately — this is a focused task I'm very comfortable with, and I'll document where everything is stored so your team has full visibility going forward.

@giaphung2k1

Hello Integrating the HMRC API is complex, especially when syncing it with your notification and calendar systems. I have successfully implemented HMRC’s MTD requirements for previous clients, ensuring secure authentication and reliable data flow. I can handle the API setup and configure your push notifications and calendar triggers to ensure your application stays perfectly in sync with tax reporting deadlines. Are you available for a brief call to discuss your current architecture and project timeline? Giáp Văn Hưng

@NoorUlHudaXZT

Hi, I understand the importance of correctly setting up HMRC APIs for your application. To ensure a seamless process, I will configure the push-notification callback URL, generate and store the push secret securely, set up a robust callback endpoint, validate responses for HMRC, test sandbox notifications thoroughly, and explain the storage of required information in the backend. My experience with HMRC integrations guarantees a successful setup, enabling you to use sandbox endpoints effortlessly for tax return and VAT submissions. Let's discuss further in chat for a detailed strategy to meet and exceed your expectations. Best regards, Noor

@technologiesit

With over a decade in the field and more than one hundred successful projects under my belt, I am confident in my ability to deliver a robust and secure setup for your HMRC API. My specialty lies in API Development and Integrations, and MySQL/PHP are second nature to me. As a Full Stack Developer, I've worked extensively on platform integrations including Shopify and WordPress APIs which will no doubt prove key to grasping nuances behind HMRC's systems. It's essential to choose an expert you can trust with your sensitive data, and I pride myself on maintaining privacy and security as paramount in all my projects. Alongside your mentioned requirements, I'll also ensure the backend maintenance of callback URLs and push secret are sufficiently documented leaving no stones unturned while making it easy for you to manage this information post-handover. Lastly, as someone who prioritizes transparent communication, working in tandem with efficient time management, I commit to swiftly completing this significant task so that you can start leveraging those sandbox endpoints without any further delays. Looking forward to being enlisted on your project team

@toriquldev123

Hello dear, Greetings from MD. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience. I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from RUET. We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam

@GeeksEra

Hi, The part that usually trips people up isn't the callback endpoint itself — it's returning the correct 2xx response fast enough while still verifying the HMRC push secret on the incoming signature. Verify it synchronously before the 2xx and HMRC can flag the notification as failed. How I'd set it up: - Secure callback endpoint that returns 2xx immediately, then verifies the push secret and processes async - Callback URL and push secret stored in env/config plus a settings table in MySQL, never hardcoded - Run the sandbox notifications to confirm everything works before you point it at live I work in PHP/MySQL backends and have wired up signed webhook callbacks with the same secret-based signature verification HMRC expects. I'm 5★ over 72 jobs here if that matters on something touching tax data. Is the endpoint plain PHP or inside a framework like Laravel? That changes where I'd put the route and store the secret. Asif

@sf264

Hello, I understand HMRC APIs and will complete the final setup for your application. Let's connect via chat and discuss this project in more detail. I am looking forward to working with you, Fahad.

@jeanpatrickr8

Hello, I appreciate the opportunity to bid on your HMRC API setup project. I understand that you need assistance with configuring the push-notification callback URL, generating a secure push secret, and ensuring your server is set up to handle these notifications correctly. I have extensive experience working with HMRC APIs and have successfully completed similar integrations in the past. My technical skills include backend development and API configuration, ensuring that the setup meets all security and validation requirements. To accomplish your project goals, I propose the following steps: - Configure the HMRC push-notification callback URL to ensure it points to the correct endpoint. - Generate and securely store the HMRC push secret within your backend. - Set up a secure callback endpoint that returns the appropriate 2xx response for HMRC validation. - Conduct thorough testing with sandbox notifications to confirm everything functions as expected. - Provide documentation on the storage of the callback URL and push secret in your backend. I am eager to begin this project and confident in delivering quality results that meet HMRC’s API setup requirements. I’m available for further discussion and can start immediately. Best regards.

@abhishek060

Hey, I've reviewed your requirements and understand the task. You already have the HMRC app registration and APIs configured, and the remaining work is the final technical setup around push notifications and callback handling. I can handle: • Configure the HMRC push-notification callback URL • Generate and securely store the push secret • Set up a secure callback endpoint on your server • Ensure proper 2xx responses for HMRC validation • Test sandbox notifications end-to-end • Document where the callback URL and push secret are stored in the backend Please share your current backend/server setup and HMRC configuration details so I can review and get started.

@DigitalNightOwl8

Hello, Greetings , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Backend Development, API Integration, API Development, API, MySQL, PHP and Software Architecture. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Feel free to contact us to discuss your project

@albertc1996

Hi there, The fact that your app is already registered with HMRC and the APIs are added means the hardest bureaucratic part is done — what's left is purely technical, and the callback URL and push secret configuration is a well-defined task with a clear pass/fail outcome from HMRC's sandbox validator. I'd set up a secure callback endpoint on your server that handles HMRC's push notification handshake correctly, store the push secret safely in your environment variables rather than hardcoded anywhere, configure the callback URL in your HMRC developer hub settings, and run through the sandbox notification tests until every response comes back clean. I'd also walk you through exactly where each credential lives in the backend so you're not dependent on me for future changes. I've worked with HMRC's Making Tax Digital API before, including callback configuration and sandbox testing for VAT submission flows. Let me know what stack your backend is running on and we can get started right here in the chat.

@vanhuy19892011

Hi, I can help complete the HMRC push-notification setup and verify that the integration works correctly in the sandbox environment. Based on your description, the application registration and API subscriptions are already in place, so the remaining work is primarily around configuring the callback endpoint, securely storing the push secret, validating the HMRC notification flow, and ensuring the endpoint responds correctly for HMRC verification requirements. My approach would be: * Review the current HMRC application configuration * Configure the callback URL and push notification settings * Implement or verify a secure callback endpoint * Store and manage the push secret correctly * Test sandbox notifications end-to-end * Verify successful HMRC validation responses * Document where the callback URL and secret are stored and how the flow works To provide an accurate estimate, please let me know the backend stack currently being used (Node.js, Python, PHP, .NET, etc.). P.S. For integrations like HMRC, I focus on making the setup understandable and maintainable, not just getting the sandbox test to pass once.