Welcome to 21st Century Payroll for Adagio
January 1, 2024
Payroll Tax Update
2019 W-4 or earlier

This Tax Update is for users who have employees configured with 2019 or earlier W-4 parameters only. Always backup your data before installing.

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January 1, 2024
Payroll Tax Update
2020 W-4 or later

This Tax Update is for users who have employees configured with 2020 or later W-4 parameters. Always backup your data before installing.

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21st Century Payroll for Adagio Version 6.5.00

To see a list of improvements made to 21st Century Payroll for Adagio and to download the current version, click the button below.

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