We know that every year, Intuit releases the QuickBooks latest version of its most famous accounting software in the form of QuickBooks Desktop. With every latest version, it provides new and improving features in accounting software QuickBooks Desktop, so that users can work with more efficiency and easily and there is no way QuickBooks can be left behind.

The latest version of the accounting software in all four editions are as follows: QuickBooks Desktop Premier, QuickBooks Desktop Pro, QuickBooks Accountant, and QuickBooks Desktop Enterprise.

Are you looking for the information that your system might need for the update? Then, in that case, this article is perfect for you as we have mentioned all QuickBooks system requirements before updating your QuickBooks Desktop to the latest version.

Operating Systems
The list of the below-operating systems is mentioned which is required to run QB Desktop 2021. Make sure to use Windows on that specific computer, not in a virtual environment.

Windows 10, (all the editions including 64 bit) make sure that it is available on that computer.
Windows 8.1(all the editions including 64 bits), installed on the computer.
Windows 7 SP1, all editions including 64-bit, natively installed (only supported until January 2020).
Windows Server 2012, Essentials and Standard version.
Windows Server 2012 R2, Essential and Standard version.
Windows Server 2016, Essentials and Standard.
Windows Server 2019, Standard & Essentials.
Windows Small Business Server 2011, Standard and Essentials.
Windows Server 2008 R2 SP1.
Note: QuickBooks requires you to use Windows naturally and not through a virtual environment.

Database Server
Database servers are Windows and Linux and as per the operating system below, mentioned.

For Linux (using QuickBooks Enterprise Solutions Database Server only) :
Red Hat Enterprise 8 (RHEL 8).
Fedora 31,32.
OpenSuse Leap 15.1 and 15.2.
For Windows:
Windows 8.1.
Windows 10.
Windows Server 2011.
Windows Server 2012, Essentials and Standard.
Windows Server 2012 R2, Essentials, and Standard.
Windows Server 2016, Standard and Essentials.
Windows Server 2019, Essentials and Standard.
Browser Requirement
QuickBooks Desktop 2021 needs internet access and Internet Explorer 11 with 32 bit. There browser requirements are mentioned below:

Hardware and Operating System Requirements
For QuickBooks Desktop 2021 you need the below hardware and Operating System requirements.

Processor: 2.4 GHz (minimum)
RAM: Minimum 4 GB and 8GB recommended
Server RAM requirements :20 Users – 20 Plus GB RAM,15 Users – 16 GB RAM, 10 Users – 12 GB RAM1 , 5 Users – 8 GB RAM
Disk Space: 2.5 GB of disc space and extra space will be required for data files. Additional Software: 60 MB required for Microsoft .NET 4.7 runtime, given on QuickBooks CD. Extra Requirements for protection of Intuit Data in QuickBooks. Connected Service Offerings – Minimum 4 GB RAM or Twice the largest file size set to back up and + 100 Mb or twice the size to restore. Space is only required from the work folder LocalApplicationData +” Intuit\Intuit Data Protect .
NOTE – For the best performance, store the QuickBooks file on SSD.

Windows: US version WindowsRegional settings are supported if they are set to EnglishAdmin rights are needed for server computing while hosting multi-user access. It should be installed on a local computer and should not be a virtual atmosphere
Optical Drive: A 4X DVD ROM drive is required for installation done by CD.
Screen Resolution: Display optimized for 1280 x 1024 screen resolution or higher with up to 2 monitors
Note: Internet access is required.

Other Hardware Devices Information
Zebra MC40: Mobile Computer ( For Android 4.4 and above )
Zebra TC20/TC25/TC51: Mobile computer is recommended (For Android 4.4 and above)
QuickBooks Desktop Enterprise 21.0 also supports:

Symbol: CS3070
Socket: Mobile CHQ 7CI
Honeywell Voyager: 1602g pocket Barcode Scanner.
Software Compatibility
Below is some of the most common software to which QuickBooks easily use them.

Internet Explorer 11.
Payroll & other online services and features require Internet access of a minimum 56 Kbps speed (1 Mbps recommended). Cable or DSL modem is always recommended
Gmail, Yahoo Email, Windows Mail, Hotmail, AOL.
Adobe reader: Business Planner, payroll, and opening and seeing form needs Adobe Acrobat Reader 9.0 or later.
QuickBooks Desktop for Mac 2016, 2019, 2020 and 2021.
Quicken 2018, 2017, 2016, 2019 and 2020.
Pro-Series tax years 2018, 2019 and 2020.
Lacerte 2018, 2019 and 2020
Turbo Tax 2018 (Personal and Business ) 2019 and 2020.
QuickBooks Point of Sale V 19.0 and V18.0 and V12.0.
Microsoft Office:
MS Office 2013 and 365 (including Outlook 2013) both on 32 and 64 bit (MS Office 365 support when it is locally installed).
MS Office 2016 (including MS Outlook 2016) on 32 bit and 64 bit.
Office 2019, it is compatible with R3 and latest versions.
Estimates of email, invoices, and other forms with MS Outlook 2010-2016, MS Outlook with MS 365, Gmail, Yahoo Mail, and Outlook.com, and other SMTP supporting email clients.
Creating the letters requires MS Word 2016, 2010, 2013 or MS Office 365 which includes 64 bits.
If you want to export the report then you also need MS Excel 2016, 2013 or 2010 SP2 or MS Office 365 which includes a 64 bit.
Contact Synchronization with Microsoft Outlook needs Outlook 2013, 2016, or 2019 ( 32 bits)
Syncing with Outlook requires QuickBooks Contact Sync for outlook.
Firewall and Antimalware and Antivirus software compatibility
Here are the lists of all firewall, antivirus, and antimalware software that are compatible with QuickBooks Desktop versions. All of the below-listed software is tested in the QuickBooks Desktop, Pro, Premier, and Enterprise 21.0.

Firewalls that are compatible with QuickBooks Desktop Versions:
Windows Server Firewall
Microsoft Windows 8.1 Firewall
Windows 7 Firewall
Microsoft Security Essentials
Antivirus/ Antimalware Software that is compatible with QuickBooks Desktop versions:
Antimalware software:

Webroot
F Secure
Kaspersky
Zonealarm
Avast
Emsisoft
Malwarebytes
Bitdefender
AVG
Spybot
McAfee
Antivirus Software:

F-Secure
McAfee
Avira
Panda Dome
Webroot
Kaspersky
Bitdefender
Avast
Norton
Trend Micro Security
ESET
QuickBooks for Mac 2020
QuickBooks for MAC minimum system requirements are mentioned below:

At least macOS 10.14 (Mohave); supported by macOS 10.14 (Mojave).
Intel processor, Core 2 Duo or higher.
Multi User Server: Intel Core 2 Duo or higher processor to run a server.
2 GB RAM (4 GB RAM recommended).
250 MB of available disk space.
CD/DVD drive or Internet connection for downloaded installation.
QuickBooks Mac Software compatibility
Printer: 100% Macintosh-compatible printer, if you plan to print invoices, checks, deposit slips, lists, purchase orders, mailing labels, reports, or graphs.
Checks: Use Intuit Checks if you plan to print checks. Canadian Image Ready Checks are not supported. Product registration required.
Exporting report data: This requires Apple Numbers v3.5, Microsoft Excel 2016 or later, including Mac Office 365.
Emailing: This requires Apple Mail, Microsoft Outlook 2016 or later, including Mac Office 365.
Payment: This requires Intuit Merchant Service if you accept credit and debit cards. Merchant Service for QuickBooks for Mac is sold separately and subject to application approval. Debit card transactions are processed as a Signature Debit, which does not require entering a PIN code.
Payroll: Here are the Payroll services that will work with your QuickBooks for Mac: Intuit QuickBooks Payroll for and Intuit Full Service Payroll
Note: Payroll for Mac requires your EIN and an internet connection to work. Printing checks and forms also require Adobe Reader. Additional fees may apply.

Mac apps: You can sync QuickBooks Desktop for Mac with Apple’s Calendar, Messages, and Contacts.
File conversion: QuickBooks for Mac 2020 supports: One-way conversion from QuickBooks Desktop for Windows 2016 to 2019. Two-way conversion from and to QuickBooks Desktop 2020.