Are the calculators HMRC compliant?

Our calculations are built to align with HMRC guidance and use the latest April 2026 rates. However, they're for guidance only – always verify complex cases with HMRC or a qualified professional.

Yes. We're ICO registered (ZC013807) and calculations run in your browser – we don't store sensitive payroll data unless you explicitly save it to your account.

Do you integrate with payroll software?

MBridge tools work as standalone calculators alongside your existing software like Sage, Xero, and QuickBooks. No integration required – use our tools as a pre-check layer.

What's the VAT registration threshold?

The UK VAT registration threshold is £95,000 taxable turnover in a rolling 12-month period. You must register within 30 days of exceeding this threshold.

Changelog

Track all updates, improvements, and fixes to MBridge Factory. We're constantly improving to serve you better.

Version Guide

MajorBreaking changes or major features

MinorNew features, backward compatible

PatchBug fixes and small improvements

v1.4.0

Minor

27 Mar 2026

featureMTD Compliance Checker - Check Making Tax Digital readiness and calculate HMRC late filing penalties

featureMTD Penalty Calculator - Points-based penalty tracking for annual, quarterly, and monthly submissions

featureNew blog post: Making Tax Digital Penalties Explained — The 2026 Guide

featureNew SEO landing page for MTD Compliance Checker 2026

v1.3.0

Minor

27 Jan 2026

featureNet-to-Gross Calculator - Reverse-calculate gross salary from desired take-home pay

featureUmbrella vs Limited Comparison - Compare take-home across umbrella, Ltd, and PAYE

featureCapital Gains Tax Calculator - CGT on shares, property, and BADR relief

featureR&D Tax Credits Calculator - Estimate relief under SME, RDEC, or merged schemes

featureDirectors Loan Tax Calculator - S455 tax and BIK on overdrawn loans

featureCIS Deductions Calculator - Calculate subcontractor deductions at 20%/30%

featureBenefit in Kind Calculator - Tax on employee perks like health insurance

featureTrivial Benefits Checker - Verify £50/£300 tax-free benefit limits

featureAnnual Investment Allowance Calculator - First-year capital allowances up to £1M

improvementNew premium icons for all 33 calculators

v1.2.0

Minor

20 Jan 2026

featureTake Home Pay Calculator - Calculate net pay with tax, NI, student loans & pension

featureCompany Car Tax Calculator - BIK rates by CO2 emissions and fuel type

featureStudent Loan Calculator - Plan 1, 2, 4 & Postgraduate repayment projections

featureCorporation Tax Calculator - 19%/25% rates with marginal relief

featureDividend Tax Calculator - Band allocation with £500 allowance

featureExpenses & Allowances Calculator - Mileage, home office, AIA claims

featurePension Contributions Calculator - Tax relief and retirement projections

featureCSV Export - Download calculation history as spreadsheet

v1.0.5

Tax Rates

15 Jan 2026

updateHMRC rates updated for the 2025/26 tax year

v1.0.0

Initial Launch

20 Dec 2025

featureInitial public release with full feature set

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Changelog

Version Guide

v1.4.0

v1.3.0

v1.2.0

v1.0.5

v1.0.0

Stay Updated

AI Compliance Assistant

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