IRIS Spring 2026 release v26.1.0
Overview
The IRIS Accountancy Suite Spring release version 26.1.0 delivers all Personal Tax functionality to handle the complete quarterly submissions journey for Income Tax Self-Assessment. In Business Tax, updates have been implemented to improve accuracy and compliance. Practice Management has been improved to accommodate MTD as well updates to billing email address. The release also includes all legislative updates to ensure your ongoing compliance.
IRIS Company Secretarial
Employment Related Securities (ERS)
We have introduced the latest Employment related securities form from HMRC for tax year 2025/26.
IRIS Personal Tax
Making Tax Digital (MTD)
April 2026 marks the first mandation date for Making Tax Digital for Income Tax Self-Assessment (MTD ITSA). Self-employed individuals and landlords with gross income over £50,000 from business or property must comply from 6 April 2026.
IRIS Personal Tax has been building MTD functionality for several years and is fully ready to support you through this transition.
Our comprehensive solution handles the complete quarterly submission journey:
- Quarterly updates – submit income and expenses to HMRC.
- Annual Activities – finalise each income source through the Business Source Adjustable Summary (BSAS) process.
- Final declarations – complete your annual digital submission by 31 January, replacing the traditional Self-Assessment return.
Seamless data management:
- Pull data directly from HMRC to track submissions made through third-party software.
- Import quarterly data via CSV or Excel for efficient quarterly submission.
- Match and reconcile records to ensure alignment with HMRC systems.
Our software has been updated with the following:
- Foreign property – ability to add or match existing foreign properties to HMRC records.
- Cumulative values updates – improved display of cumulative values within the Digital Tax Hub.
- Pension charges – submission of pension charges as part of end-of-year submissions.
- Capital gains on residential properties – submission of capital gains residential property values as part of end-of-year submissions.
We’ve updated IRIS to reflect the latest tax year thresholds, allowances, and legislative changes, ensuring your software remains fully compliant with current HMRC requirements.
Threshold & Allowance Adjustments
The following thresholds and allowances have been updated to reflect current tax year requirements:
- Maintenance payments threshold: £4,360
- Class 2 NIC threshold: £6,845
Functional updates
Close Company Relationships
The SA102 Employment pages now capture comprehensive details about an individual’s relationship with close companies, including both dividends received and ownership stakes held.
Property Lettings
Furnished Holiday Lettings (FHL) in the UK and European Economic Area (EEA) have been removed from the SA105 UK Property pages in line with legislative changes.
Autumn Budget 2026 updates
The following changes announced in the Autumn Budget take effect from April 2026:
- Income limit for Married Couple’s Allowance increase to £39,200 from April 2026.
- Minimum amount of Married Couple’s Allowance increase to £4,530.
- Blind Person’s Allowance increase to £3,250.
- Class 2 NIC Small Profits Threshold increase to £7,105 from April 2026.
- Class 2 contribution rate (voluntary) increase to £3.65pw from April 2026.
- Special Class 2 rate for share fisherman increase to £4.30pw from April 2026.
Winter Fuel Payment (WFP) or Pension age winter Heating payment (PAWHP)
IRIS has been updated to allow capturing of the Winter Fuel Payment (WFP) or Pension age winter Heating payment (PAWHP) where this only needs to be completed if you have reached state pension age, earn over £35,000 and you are not in receipt of a qualifying benefit.
Foreign Income and Gains Regime
The Foreign Income and gains regime (FIG) has replaced the remittance basis from 6th April 2025. All UK residents are now taxed on worldwide income/gains on an arising basis. To qualify for the FIG regime, an individual must be a ‘qualifying new resident’ and only for relievable foreign income and gains where 100% deduction applies., which means:
- The individual is a UK resident;
- The tax year is within the first four tax years of the tax year of arrival to the UK (either ever or following a sufficient period of non-UK residence); and
- The individual was not UK resident throughout the ten tax years before arriving in the UK.
The election of any FIG claim has consequences for various other tax allowances and reliefs, including the following restrictions:
- Loss of the income tax personal allowance (if otherwise available).
- Loss of certain additional allowances, including blind person’s and transferable tax allowances.
- Loss of the CGT annual exempt amount.
- Inability to utilise foreign income losses arising from trading activities and rental properties, or foreign capital losses on asset disposals.
- No relief available for finance costs (including mortgage interest) relating to foreign rental properties.
The software has been updated and now supports FIG regime claims across multiple areas as follows:
- FIG claims and loss adjustments SA103F (Self-employment): (Boxes 76.1, 77.1).
- FIG claims for trading/professional profits (Boxes 20.1, 21.1) and partnership income including untaxed savings, offshore funds, foreign income, taxed income, and dividends SA104F (Partnerships).
- FIG claims for overseas savings interest, foreign dividends, overseas pensions/benefits/royalties, foreign property income, and other overseas income/gains SA106 (Foreign income):
- FIG claims for foreign estate income (Box 22.1) SA107 (Estates):
- FIG claims for residential property, carried interest, various asset types, listed/unlisted shares and securities, and QAHC-related gains/losses SA108 (Capital Gains).
Overseas Workday Relief (OWR)
From 6 April 2025, OWR provides tax relief for qualifying new UK resident employees on employment income from duties performed outside the UK. In addition, the following applies:
- Relief applies to earnings from overseas duties during qualifying years.
- Income apportioned on a workday basis (UK vs overseas days).
- Available regardless of where income is received (UK or overseas account).
- Can remit offshore income to UK without tax charge.
The software has been updated to allow users to make OWR elections for qualifying years and making a claim for relief quantifying the amount claimed factoring in the relief capped at the lower of 30% of qualifying employment income, or £300,000.
Temporary Repatriation Facility (TRF)
The Finance Act 2025 introduced a temporary repatriation facility (TRF) for 2025/26 to 2027/28, allowing former remittance basis users to remit pre-6 April 2025 foreign income and gains at reduced tax rates allowing users to elect for TRF and declare personal TRF designations, capital payments/benefits from trusts, and TRF designations remitted in the current tax year.
IRIS Business Tax
The following updates have been implemented to improve accuracy and compliance:
- Investment Zones list updated in the Structures Buildings allowance screen for limited companies, sole traders, and partnerships.
- Creative tax credits and reliefs (including AVEC) no longer auto-populate Box 650.
- Capital Allowance Plant & Machinery main rate reduced to 14% from April 2026.
CT600E
The CT600E has been updated to add a new box for E88-Legacy Income on Page 2 and updates made to cater for the collection of information from legacy donors including names, address and amount.
CT600L
IRIS has been enhanced to reflect the HMRC amendments to the CT600L incorporating the new fields in relation to RDEC which directly relates to the SME/RDEC Merged scheme. In addition to cater for these changes a new field has been added to the R&D Expenditure Credit tab for ‘Total expenditure on externally provided workers’.
CT600P-Creative Industries
IRIS has been updated to cater for a new supplementary page that has been added for the CT600P-Creative Industries to provide more details on where a company is part of creative and audio-visual industries on the expenditure and audio and visual expenditure credits to calculate the corporation tax charge.
The CT600P will need to be completed if your company is claiming any of the following:
- Audio-Visual Expenditure Credit (AVEC), including enhanced relief for independent films
- Film Tax Relief
- High-End Television Tax Relief
- Children’s Television Tax Relief
- Animation Tax Relief
- Video Games Expenditure Credit (VGEC)
- Video Games Tax Relief
- Theatre Tax Relief
- Orchestra Tax Relief
- Museums & Galleries Exhibition Tax Relief
- Additional credit for visual effects (VFX)
Partnerships
The Furnished holiday lettings in the UK or European Economic Area (EEA) section on the SA801 Partnership with UK property has been removed. Income and expenses should be included in boxes 1.21 to 1.40 on Page 2 of the return.
IRIS Trust Tax
The following updates have been made in IRIS as announced in the Autumn budget 2025:
- The Trust dividend ordinary rate increases by 2% from April 2026.
IRIS P11D
Our software has been updated to cater for the following updates:
- Class 1A NIC rate update to 15%.
- Car fuel benefit charge multiplier increases to £29,200 from April 2026.
- Van benefit charge increases to £4,170 from April 2026.
- Van fuel benefit charge increases to £798 from April 2026
IRIS Practice Management
- Workflow report includes main email address.
- Users can select which billing email address an email is being sent to. When sending an email via IRIS Practice Management, and the user selects ‘Use Billing Email Address‘, two new radio buttons will now appear which allows the user to select which email address is used.
- Included a Making Tax Digital (MTD) field to the Standard Job Types list. Users can create client jobs using the MTD job type. This will create the quarterly intervals correctly.
- Resolved issue – strange characters appearing in sent items folder in Outlook when email is sent using MAPI option from IRIS Practice Management.
IRIS AutoMail
- Resolved issue – AutoMail application crashes when generating letter using use Automail Merge and Open After Merge option.