Summer 2026 MTD IT Release

Top-level summary

MTD year-end progress, practice visibility and accounts presentation improvements in one release

This August release introduces the next step in our MTD for Income Tax journey, with MTD end-of-year filing now available for customers taking part in the 2025/26 HMRC beta. We’ve also added new Practice Manager tools to help you track MTD enrolment, manage MTD tax return jobs and report on quarterly submissions more easily. Alongside this, Accounts Production includes practical enhancements to improve presentation and flexibility, plus the latest Companies House Form updates.

Install the update today and start benefiting from the latest features right away.

Tax Return Production

Achieve MTD for IT end of year filing for tax year 25/26

MTD for Income Tax Self Assessment becomes mandatory for those with income over £50,000 from 26/27. For practices and clients participating in the HMRC non-mandated beta for the 25/26 tax year, TaxCalc's MTD final tax return is now available, enabling you to complete and submit the final MTD tax return for the 25/26 tax year.

This initial release covers the income types most commonly seen across a general practice client base — self employment (including CIS deductions), state pension and other taxable state benefits, UK interest, UK dividends (excluding directors' dividends), pension contributions, Gift Aid donations, student and postgraduate loan repayments, and the Child Benefit tax charge. Full HMRC integration is included across all of these areas, covering data fetch, calculation, filing requirement checks, submission, and confirmation of receipt.

What this means for MTD 25/26 returns in TaxCalc

• Time saved: HMRC data fetch pulls in figures already held by HMRC for eligible income sources such as state pension and interest, removing the need to re-key data your clients have already reported
• Greater accuracy: pension relief, Gift Aid, and student loan calculations are applied automatically, reducing the risk of manual errors on some of the more complex areas of the return
• Confidence before you file: the software cross-checks its own calculation against HMRC's and validates data against HMRC's filing requirements, so any issues are surfaced before submission rather than after

This functionality is available exclusively to practices enrolled in the HMRC MTD beta programme for 2025/26. Full availability will follow ahead of the 26/27 mandation, ensuring all customers are ready when MTD becomes a requirement for their clients.

Screenshot of the HMRC Fetch service embedded throughout the new MTD tax return.

More income types coming: Autumn 2026

This release is just the start. If some of your clients have income types that fall outside the scope of this release, the remaining income types are on their way this Autumn.

The Autumn 2026 release will extend coverage to include rental income (UK Land and Property), Capital Gains, employment income and expenses, foreign income, and more, ensuring TaxCalc's MTD solution continues to grow alongside your client base as mandation approaches. Watch this space for more details.

Practice Management

Practice Manager supports MTD 

With the introduction of MTD Income Tax Returns for individuals, Practice Manager now supports the creation of work and jobs for both MTD tax return and historical SA100 tax returns, ensuring all compliance activity can be managed consistently in one place, giving your practice a seamless transition to MTD without changing the way you track your work

When creating a job, a new “MTDITR - Individual tax return” option has been added alongside the existing “SA100 - Individual tax return”.

Track MTD Enrolment from date

Keeping on top of your clients' MTD journey just got easier. A new "Enrolled From" field in Practice Manager captures the tax year each client was first enrolled for MTD Income Tax, giving your practice instant visibility of their MTD history at a glance. No more digging through records to work out whether a client needs an SA100 or an MTD Income Tax Return, TaxCalc does the hard work for you, so you can focus on what matters most.

Easy MTD compliance reporting

Staying ahead of your clients' MTD obligations is now even simpler. Report Customisation and Data Mine have been updated to include a new 2027 Submissions subcategory within the MTD for Income Tax report, giving you the ability to report on the date and period end of each client's last submission and whether it was successful, all in one place. As MTD becomes mandatory for more clients, having this level of visibility at your fingertips means you can quickly spot outstanding obligations, chase up missing submissions, and keep your whole client base on track before deadlines arrive.

Accounts Production

Smarter profit and loss presentation for service businesses

If your client is a service-based business there is typically no cost of sales to report. Until now, the profit and loss account would still display a gross profit subtotal. TaxCalc will automatically detect where there are no cost of sales postings and remove the gross profit and gross profit margin lines from both the statutory and detailed profit and loss accounts. At the same time, the title of the trading profit and loss will update automatically to "detailed profit and loss", accurately reflecting that the entity is not engaged in a trading activity.

Current year only accounts for partnerships and sole traders

There are a number of situations where you may need to produce accounts showing only the current year figures so we have now added a "Hide comparatives on financial statement" option within Reports, which removes the comparative figures at the click of a button producing a set of accounts showing the current year figures only.

Further FRS 102 periodic review updates

Building on the lease accounting changes introduced in our summer release, we have made a series of further enhancements to the lease-related functionality to improve the depth and usability of the new lease accounting within TaxCalc. Allowing the practice-level defaults for the new disclosures, drill-down functionality in the new notes and additional lead schedules.

Companies House Forms

The following forms have been updated to the latest versions from Companies House to accommodate guidance only updates to their postal addresses for:

• AD05 - Notice to change the situation of an England and Wales company or a Welsh company
• AA06 - Statement of guarantee by a parent undertaking of a subsidiary company
• NM01 - Notice of change of name by resolution