The 7 Most Important Data Files You Should Back Up Nightly

Person using touchscreen display to open documents in a folder.
Person using touchscreen display to open documents in a folder.

While regular backups are critical to any disaster recovery plan, not every file on your system is mission critical. It’s always good practice to back up your systems daily, but often that isn’t practical or doable. Whether because of financial or time constraints, full backups often have to be done less frequently. So what are the data files you should back up nightly? We have a list of 7 files that every business should absolutely be backing up on a daily basis.

1. Credit Card Transactions/Receipts

Bookkeeping and financial transaction records should be backed up daily. Many bookkeeping programs do this automatically, but be double sure. It may seem unnecessary since most transaction providers offer tracking and archiving, but it’s always best to have personal copies, just in case.

2. Updated Client Information Files

Any work performed for clients/customers should also be backed up nightly. Clients might be forgiving of small delays, but losing client information is a sure way to shake their confidence. A reputation as being unreliable with client data can be difficult and costly to undo.

3. Invoicing, Billing, Receivables and Payables

Losing any of these files could easily cause your business to miss a payment you owe, or worse a payment owed you. The former can lead to blemishes on your business credit, while the latter can cause you to lose significant amounts of money owed to your business.

4. Personnel Files and Payroll

Any personnel files that have been changed, updated, added, or removed since the previous backup should be backed up. Doing so is much simpler than having to go back later and adjust payroll on a check that has already gone out, or unfiring someone who was “absent” because their vacation schedule got erased.

5. Communications

Emails, phone calls, voice mails, text messages, and other corporate communications change often, and need to be updated daily. Not doing so can risk losing critical instructions, communications, notes, etc.

6. Project Management

If your company relies on project management software, be sure to update it daily to avoid duplicate work, missed deadlines, or whole projects falling through the cracks. The more you count on your project management to guide your daily activities, the more important it is to back up daily.

7. Other Frequently Updated Files

This is a catchall if you still have space or time to add more data to your daily backup. This can include documents that are frequently changed, appointments, calendars, schedules, meeting notes, and other files which can vary significantly from one week to the next. As a managed services customer, we make sure your critical files are securely backed up both locally and off-site. You can review the service plan levels, or to become a Corsica Tech Managed Customer contact us at 877-367-9348 or request a free IT consultation today!

Corsica Technologies
Corsica Technologies is an MSP specializing in cybersecurity solutions, managed IT services, digital transformation, and data integration. Corsica provides solutions for midmarket businesses including network monitoring, data protection, incident response, and IT support. Corsica offers unmetered technology services for fully managed or co-managed teams to address all technology needs under a one-flat monthly fee. 

Related Cybersecurity and IT Reads

Microsoft 365 price increase - Corsica Technologies
Microsoft 365
Garrett Wiesenberg

Microsoft 365 Price Increase: What You Can Do

Microsoft has increased the price for its Microsoft 365 business licensing in 2025. Whether you work with a provider for M365 managed services or handle everything yourself, you need to understand how price increases may affect you—and what your options

Read more

Sign Up For Our Newsletter

Stay up-to-date on the Managed Services and Cybersecurity landscape, and be the first to find out about events and special offers.

Ready to talk to an expert?

We’ll respond within 1 business day, or you can grab time on our calendar.