I installed Deluxe on my Mac desktop with OS X version 10.10.5, but my computer will not verify the download. OS is updated. How do I operate the download?

Mac CD/Download Products

Below are the minimum requirements for TurboTax Federal 2018 software installed on a Mac computer.

• Multi-core Intel Processor with 64-bit required.

• 1024x768 screen resolution or higher.

• macOS Sierra 10.12 or later.

• 2 GB or more recommended.

• 650 MB for TurboTax.

• 56 Kbps modem (Broadband connection highly recommended).
• Required for product updates.

• Any Macintosh-compatible inkjet or laser printer.

• www.turbotax.com/support

The TurboTax software for tax year 2018 requires Mac OS X v.10.12 or later (64-bit required)

See this TurboTax support FAQ for Mac minimum system requirements - https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software

If you cannot upgrade or do not want to upgrade your Mac OS then you can request a refund of the software purchased from TurboTax using this website - https://support.turbotax.intuit.com/forms/refund-request.jsp

You can use the TurboTax online editions - https://turbotax.intuit.com/personal-taxes/online/