hmrc/income-tax-view-change-frontend
Apr 2025 – Apr 2026
12 Months active
Languages Used
HTMLScalaJavaN/ASCSSpropertiesCSS
Technical Skills
Exception HandlingFrontend DevelopmentModel ValidationScalaCSSHTML
Nemanja Tomanovic
PROFILE
Nemanja Tomanovic
Nemanja Tomanovic contributed to the hmrc/income-tax-view-change-frontend over a twelve-month period, delivering features and reliability improvements across tax calculation, payments, and user interface flows. He implemented enhancements such as POA adjustment links, homepage UI overhauls, and robust exception handling to improve data integrity and user experience. Using Scala, HTML, and the Play Framework, Nemanja refactored core components for maintainability, migrated the codebase to Scala 3, and standardized currency formatting. His work included backend validation logic, frontend internationalization, and test automation, resulting in a more stable, maintainable application that reduced customer-facing errors and streamlined tax management workflows.
Overall Statistics
Feature vs Bugs
63%Features
Repository Contributions
35Total
Bugs
10
Commits
35
Features
17
Lines of code
242,607
Activity Months12
Your Network
1 personShared Repositories
1
Work History
April 2026
2 Commits
Apr 1, 2026April 2026: Delivered targeted reliability and quality improvements to the Income Tax View Change frontend, focusing on validation accuracy and code health. Key outcomes include corrected ITSA validation logic with new status reasons, improved handling of tax statuses to prevent regressions, removal of dead code in PaymentOnAccountViewModel, and expanded test coverage for charge type retrieval. These changes reduce customer-facing errors, shorten issue resolution times, and strengthen the maintainability of the frontend.
2 Commits
Apr 1, 2026April 2026: Delivered targeted reliability and quality improvements to the Income Tax View Change frontend, focusing on validation accuracy and code health. Key outcomes include corrected ITSA validation logic with new status reasons, improved handling of tax statuses to prevent regressions, removal of dead code in PaymentOnAccountViewModel, and expanded test coverage for charge type retrieval. These changes reduce customer-facing errors, shorten issue resolution times, and strengthen the maintainability of the frontend.
April 2026
March 2026
6 Commits • 2 Features
Mar 1, 2026Concise monthly summary for 2026-03 focused on delivering user-centric frontend improvements, stabilizing currency presentation, and ensuring accurate content delivery for the income-tax-view-change frontend. Highlights include a major UI overhaul for homepage task management, introduction of penalties/mandates handling via feature flags, and currency formatting standardization with updated tests.
March 2026
6 Commits • 2 Features
Mar 1, 2026Concise monthly summary for 2026-03 focused on delivering user-centric frontend improvements, stabilizing currency presentation, and ensuring accurate content delivery for the income-tax-view-change frontend. Highlights include a major UI overhaul for homepage task management, introduction of penalties/mandates handling via feature flags, and currency formatting standardization with updated tests.
January 2026
2 Commits • 1 Features
Jan 1, 2026January 2026 performance summary for hmrc/income-tax-view-change-frontend: Delivered frontend modernization and reliability improvements through a Scala 3 migration and a critical data-serialization fix. This work reduces technical debt, enhances maintainability, and provides a solid foundation for future feature delivery. See key achievements for commit-level details.
2 Commits • 1 Features
Jan 1, 2026January 2026 performance summary for hmrc/income-tax-view-change-frontend: Delivered frontend modernization and reliability improvements through a Scala 3 migration and a critical data-serialization fix. This work reduces technical debt, enhances maintainability, and provides a solid foundation for future feature delivery. See key achievements for commit-level details.
January 2026
December 2025
4 Commits • 2 Features
Dec 1, 2025December 2025 (2025-12) focused on delivering business value for the hmrc/income-tax-view-change-frontend while strengthening data integrity and maintainability. Key user-facing capability added: a POA Adjustment Link in the What You Owe view, enabling users to adjust Points of Authority based on unpaid charges and tax year, reducing friction and support overhead. Parallel technical work consolidated internal refactors and data structure improvements to support reliable data handling and future MISUV work.
December 2025
4 Commits • 2 Features
Dec 1, 2025December 2025 (2025-12) focused on delivering business value for the hmrc/income-tax-view-change-frontend while strengthening data integrity and maintainability. Key user-facing capability added: a POA Adjustment Link in the What You Owe view, enabling users to adjust Points of Authority based on unpaid charges and tax year, reducing friction and support overhead. Parallel technical work consolidated internal refactors and data structure improvements to support reliable data handling and future MISUV work.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025: Delivered a frontend enhancement for the Claim a Refund screen in hmrc/income-tax-view-change-frontend, adding new credit types and updating the credits display logic to improve user experience and clarity. This work supports MISUV-10363 content update and is backed by a traceable commit (d2e98bdf7ed4128f310504b52752150c1fca49a4). No major bugs reported during the period. Overall impact: clearer refund flow, better UX, and maintained code quality.
1 Commits • 1 Features
Nov 1, 2025November 2025: Delivered a frontend enhancement for the Claim a Refund screen in hmrc/income-tax-view-change-frontend, adding new credit types and updating the credits display logic to improve user experience and clarity. This work supports MISUV-10363 content update and is backed by a traceable commit (d2e98bdf7ed4128f310504b52752150c1fca49a4). No major bugs reported during the period. Overall impact: clearer refund flow, better UX, and maintained code quality.
November 2025
October 2025
6 Commits • 2 Features
Oct 1, 2025October 2025 summary for hmrc/income-tax-view-change-frontend focused on delivering precise POA handling in tax return amendments, improving charge summary credit displays, and strengthening test stability. Notable outcomes include accurate POA breakdowns, improved form focus for error handling, enhanced charge summary messages for balancing payments, and more reliable CI/regression tests, all contributing to lower risk of misstatements and faster, safer releases.
October 2025
6 Commits • 2 Features
Oct 1, 2025October 2025 summary for hmrc/income-tax-view-change-frontend focused on delivering precise POA handling in tax return amendments, improving charge summary credit displays, and strengthening test stability. Notable outcomes include accurate POA breakdowns, improved form focus for error handling, enhanced charge summary messages for balancing payments, and more reliable CI/regression tests, all contributing to lower risk of misstatements and faster, safer releases.
September 2025
3 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for hmrc/income-tax-view-change-frontend: Delivered user-facing improvements to tax return amendments messaging and display, ensuring amended POA amounts are accurately shown on breakdown pages. Stabilized code with a controlled revert to MISUV-10091 as part of validation, and completed internal testing improvements to raise reliability. Expanded test coverage, removal of deprecated audit models/enums, and updated tests to improve maintainability. These changes improve end-user accuracy, reduce support queries related to amendments, and strengthen release confidence. Key technologies: frontend UI messaging, test automation, code cleanup, audit model refactoring.
3 Commits • 2 Features
Sep 1, 2025September 2025 monthly summary for hmrc/income-tax-view-change-frontend: Delivered user-facing improvements to tax return amendments messaging and display, ensuring amended POA amounts are accurately shown on breakdown pages. Stabilized code with a controlled revert to MISUV-10091 as part of validation, and completed internal testing improvements to raise reliability. Expanded test coverage, removal of deprecated audit models/enums, and updated tests to improve maintainability. These changes improve end-user accuracy, reduce support queries related to amendments, and strengthen release confidence. Key technologies: frontend UI messaging, test automation, code cleanup, audit model refactoring.
September 2025
August 2025
1 Commits • 1 Features
Aug 1, 2025Month: 2025-08 | hmrc/income-tax-view-change-frontend: Delivered the NO_ASSIGNMENT flow for unassigned agents. Implemented a new controller and view to guide users to contact their team for access, updated routing and exception handling to integrate the flow, and expanded test coverage. This work aligns with MISUV-10074 and includes the commit 7d07026e8dfb43712e182fd1afcee8de6ddd7044 and related tests (#2986).
August 2025
1 Commits • 1 Features
Aug 1, 2025Month: 2025-08 | hmrc/income-tax-view-change-frontend: Delivered the NO_ASSIGNMENT flow for unassigned agents. Implemented a new controller and view to guide users to contact their team for access, updated routing and exception handling to integrate the flow, and expanded test coverage. This work aligns with MISUV-10074 and includes the commit 7d07026e8dfb43712e182fd1afcee8de6ddd7044 and related tests (#2986).
July 2025
3 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for hmrc/income-tax-view-change-frontend: Delivered foundational UI standardization, multilingual messaging improvements, and robust access control, contributing to better user experience, compliance, and security. Notable outcomes include a component-driven approach to continue button styling, bilingual messaging for late payment penalties, and restricted payment plan link visibility to primary users with updated tests.
3 Commits • 2 Features
Jul 1, 2025July 2025 performance summary for hmrc/income-tax-view-change-frontend: Delivered foundational UI standardization, multilingual messaging improvements, and robust access control, contributing to better user experience, compliance, and security. Notable outcomes include a component-driven approach to continue button styling, bilingual messaging for late payment penalties, and restricted payment plan link visibility to primary users with updated tests.
July 2025
June 2025
5 Commits • 3 Features
Jun 1, 20252025-06 monthly summary for hmrc/income-tax-view-change-frontend: Delivered feature enhancements and reliability improvements across financial views and payments, yielding improved UX continuity, accurate tax breakdowns for High Income scenarios, cleaner UI code, and robust error handling in payments.
June 2025
5 Commits • 3 Features
Jun 1, 20252025-06 monthly summary for hmrc/income-tax-view-change-frontend: Delivered feature enhancements and reliability improvements across financial views and payments, yielding improved UX continuity, accurate tax breakdowns for High Income scenarios, cleaner UI code, and robust error handling in payments.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary focusing on key accomplishments, major feature delivery, and technical impact for the hmrc/income-tax-view-change-frontend. This period centered on delivering a targeted enhancement to visibility of interest accrued after the primary charge settlement, along with related filtering refinements to ensure accurate presentation of settlement scenarios. No major bug fixes were reported as standalone issues this month; however, refinement of filtering logic improves data integrity around settled charges and reduces edge-case risk.
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary focusing on key accomplishments, major feature delivery, and technical impact for the hmrc/income-tax-view-change-frontend. This period centered on delivering a targeted enhancement to visibility of interest accrued after the primary charge settlement, along with related filtering refinements to ensure accurate presentation of settlement scenarios. No major bug fixes were reported as standalone issues this month; however, refinement of filtering logic improves data integrity around settled charges and reduces edge-case risk.
May 2025
April 2025
1 Commits
Apr 1, 2025Concise monthly summary for April 2025 focused on robustness and business impact for the hmrc/income-tax-view-change-frontend. Emphasis on stabilizing liability calculation and payment allocation through model-level validation of optional fields and safer data handling to prevent runtime errors and improve data integrity.
April 2025
1 Commits
Apr 1, 2025Concise monthly summary for April 2025 focused on robustness and business impact for the hmrc/income-tax-view-change-frontend. Emphasis on stabilizing liability calculation and payment allocation through model-level validation of optional fields and safer data handling to prevent runtime errors and improve data integrity.
Activity
Loading activity data...
Quality Metrics
Correctness90.8%
Maintainability88.0%
Architecture84.6%
Performance84.2%
AI Usage24.0%
Skills & Technologies
Programming Languages
CSSHTMLJavaN/ASCSSScalaproperties
Technical Skills
API developmentBackend DevelopmentCSSException HandlingFrontend DevelopmentFunctional ProgrammingHMRC Frontend LibrariesHTMLHTML/SCSSITSA Status IntegrationInternationalizationInternationalization (i18n)Model ValidationMongoDBPlay Framework
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline