---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "UK Tax Calculator 25/26"
developer_entity: "1BIGRIG Ltd"
bundle_id: "BIGRIG-Ltd.UK-Tax-Calculator-25-26"
app_store_id: "6757434454"
category: "Finance"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2026-01-09"
report_date: "2026-10-13"
last_verified: "2026-10-13T00:00:00.000Z"
report_version: "1.0.1"
total_reviews: 0
confidence: "low"
confidence_score: 0.2
data_age_days: 27
momentum_velocity: "zombie"
intelligence_version: 2
tags: ["finance", "free", "mobile app", "app review", "app analysis", "employees", "seeking", "understand"]
canonical_url: "https://marlvel.ai/apps/uk-tax-calculator-25-26"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

## ⚠ Content Warning

This report covers topics classified as sensitive (finance). Information is aggregated from public sources for informational purposes only. This is not financial or investment advice. Always do your own research.

---

# UK Tax Calculator 25/26 Intelligence Report

## TL;DR {#tldr}

- **Category**: Finance · Free

> **TL;DR:** UK Tax Calculator 25/26 is a finance app by 1BIGRIG Ltd, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** UK Tax Calculator 25/26 is a finance app by 1BIGRIG Ltd.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Category** | Finance |
| **Developer** | 1BIGRIG Ltd |
| **Pricing** | Free |
| **Platforms** | iOS |
| **Confidence** | Low (0.2/1.0) |
| **Data Age** | 27d |

## Metadata & Market Performance
- **Publisher:** 1BIGRIG Ltd
- **Category:** Finance
- **Target Audience:** UK employees seeking to understand their net pay, including those with multiple income streams or specific tax obligations.
- **Platforms:** iOS
- **Version Reviewed:** 1.0.1
- **Report Date:** 2026-10-13
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.2/1.0)
- **App Store ID (iOS):** 6757434454
- **Bundle ID:** BIGRIG-Ltd.UK-Tax-Calculator-25-26
- **Data Window:** Analysis based on signals collected up to 2026-10-13

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** UK Tax Calculator 25/26 is a finance utility for UK employees to estimate net pay and tax deductions on iOS.
**Why users hire it:** The app removes the manual effort of calculating complex UK-specific payroll deductions like HICBC and student loans.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Standard] Simple Mode:** Streamlined interface for quick take-home pay calculations.
- **[Standard] Advanced Mode:** Extended input fields for tax codes, second job income, and dividend tax calculations.
- **[Differentiator] Child Benefit & HICBC Calculator:** Specific logic for High Income Child Benefit Charge and benefit eligibility.
- **[Standard] Pension & Student Loan Support:** Deduction modeling for workplace pensions and student loan repayment plans.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

UK Tax Calculator 25/26 operates as a niche finance tool for the UK market, currently maintaining a 4+ content rating. Its lack of recent updates (277 days since last store update) positions it as a static utility rather than an active financial service.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Free access to all calculation features
- **Analysis:** The app is currently free with no visible subscription or IAP gates, suggesting a focus on user acquisition or brand visibility.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Dedicated logic for High Income Child Benefit Charge (HICBC) provides utility for high-income segments.
- Simple and Advanced modes reduce cognitive load for casual users while serving power users.

**Growth Levers:**
- Integration of real-time HMRC tax code updates would differentiate the app from static calculators.
- Expansion into tax-year-end planning tools could increase session duration during Q1.


<!-- /section:swot -->
<!-- section:whats-new -->
## What's New

- **Latest (v1.0.1, 9 months ago):** Addressed minor user interface defects.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Zombie) {#momentum}

- No feature updates in 9 months.
- Maintains static utility status.

> **Cadence:** 1 total versions · 0 majors in last 6 months · 276 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

UK Tax Calculator 25/26 is a finance app that is completely free.

<!-- speakable-start -->
> **Bottom Line:** UK Tax Calculator 25/26 serves a specific need for UK payroll estimation, but its maintenance-only status risks obsolescence as tax rules shift. Verifying calculation accuracy is the priority to maintain utility for existing users.
<!-- speakable-end -->

**Best for:** UK employees seeking to understand their net pay, including those with multiple income streams or specific tax obligations.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [MAINTAIN] Audit calculation accuracy against current HMRC rules because the app has been dormant for 9 months → ensure user trust
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Stable

The UK tax utility market is shifting toward integrated services that offer real-time updates and cloud-based tracking. UK Tax Calculator 25/26 remains a static tool, which will likely lead to a gradual decline in relevance as users migrate to more dynamic financial platforms.

- ⚪ The 9-month development silence indicates the app is in maintenance mode, which limits its ability to adapt to new tax-year changes.
- ⚪ The current free-only model without IAP suggests the developer is not prioritizing revenue, which may lead to further stagnation in feature development.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Total Reviews | 0 |
| Confidence | Low |
| Pricing Model | Free |
| Platforms | iOS |
| Key Features | 4 analyzed |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **UK Tax Calculator 25/26** (this app) | N/A/5 | N/A | 1BIGRIG Ltd |
| [Banksola: Budget Planner](https://marlvel.ai/apps/banksola-budget-planner) | 4.6/5 | Mixed | Quickdollarapp, Inc |
| [DEGIRO: Investing & Trading](https://marlvel.ai/apps/degiro-investing-trading) | 4.1/5 | Mixed | DEGIRO - Online Trading App |
| [Digital Budget](https://marlvel.ai/apps/digital-budget) | 5.0/5 | Thrilled | Bryant Foster |
| [Hourly: Freelance Tracker](https://marlvel.ai/apps/hourly-freelance-tracker) | N/A/5 | N/A | Albert Lewinski |
| [SureShotFX - Pip Calculator](https://marlvel.ai/apps/sureshotfx-pip-calculator) | 4.0/5 | Excited | SureShotFX |

## Company Profile
- **Developer:** 1BIGRIG Ltd
- **Website:** [https://dilligaf.fyi/our-apps/](https://dilligaf.fyi/our-apps/)

## Data Sources & Links
- **App Store ID:** 6757434454
- **Dev Site:** [Official Website](https://dilligaf.fyi/our-apps/)
- **Sources:** Developer website content, App store metadata.

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## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes).
4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** developer website, App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 27 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/uk-tax-calculator-25-26)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.