IRIS Accountancy Suite Support Downloads

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.NET 4.8 and MSVC 2019 notification

From October 2021 IRIS Accountancy Suite requires .NET 4.8 and MSVC 2019.
We recommend that you download and install .NET 4.8 and MSVC 2019 before installing the Autumn v21.3.0 release.

Microsoft .NET 4.8 can be downloaded from here.
MSVC 2019 can be download from here.

New Installations

For brand new installations, please ensure to download and install SQL Server before starting the IRIS installation.
SQL Express can be obtained from here

Note: SQL Express - is available from Microsoft for free and is only recommended for use for up to 6 users. Full System Requirements can be found here.

To download and learn more about the limitations of SQL Express against the SQL Server Standard version, visit the Microsoft website here.
Detailed instructions for installing SQL (in the example) can be found here and instructions for installing IRIS can be found here.

Terminal Server/LPO Downloads

Both Terminal Server(s) LPO and the main IRIS installer must continue to be maintained at the same version and build number at upgrade time; the version and build number can be seen in any Help/About dialog.
To download LPO Installations please click here.

IRIS Installations

Please download the required release depending on which version is installed. To find the version installed, open IRIS and go to Help | About. The version will be shown on the right-hand side.

Full Install denotes a Full release that can be used for fresh installations and upgrades.  All Full installs need to be upgraded in succession, it is not possible to skip any updates.

Upgrade Only denotes a Service Pack, used to upgrade existing installations.

We recommend that you review the Known Issues before installing the latest release of IRIS Accountancy Suite 21.3.583

Software versions prior to v18.1.0 are available here.

TypeVersion InstalledDownloadDetails
Full InstallUpgrades 21.2.376Download & Install v21.3.583Release Notes
Full InstallUpgrades 21.1.0 and 21.1.6Download & Install v21.2.376Release Notes
UpgradeUpgrades & Install v21.1.6.35bRelease Notes
Full InstallUpgrades 20.3 or 20.4Download & Install v21.1.0.652Release Notes
UpgradeUpgrades 20.3.0Download & Install v20.3.4Release Notes
Full InstallUpgrades 20.2.0Download & Install v20.3.0What's New in v20.3
Full InstallUpgrades 20.1.0 and service pack releasesDownload & Install v20.2.0What's New in v20.2
Upgrade OnlyUpgrades 20.1.0 releaseDownload & Install v20.1.5Release Notes
Full InstallUpgrades any 19.3 release Download & Install v20.1.0 What's New in v20.1
Full installUpgrades any 19.2 releaseDownload & Install v19.3.0 What's new in v19.3
Full InstallAny 19.1.x releaseDownload & Install v19.2.0 What's new in v19.2
Upgrade only19.1.0.729 or 735 or 737 or 19.1.1Download & Install v19.1.2Release Notes
Full Install18.3.0 or 18.3.1 or 18.3.2Download & Install v19.1.0Full Features in 19.1
Full Install18.2.0 or 18.2.1Download & Install v18.3.0What's new in v18.3
Full Install18.1.0 or 18.1.1or 18.1.2Download & Install v18.2.0What's new in v18.2
Full Install 17.3.xDownload & Install v18.1.0What's new in v18.1 

IRIS Anti - Money Laundering 

Type VersionDownloadDetails
Full Install21.3.3Download & InstallUpgrades all previous versions


Full Install6.18Download & InstallRelease Notes

For further details and support on upgrading IRIS Docs, visit the IRIS Help Centre.
For the latest System Requirements, click here.


IRIS Standalone VAT Filer
(Upgrades all previous versions) Download & Install VAT Filer Help
Making Tax Digital