Automating CAM Reconciliations in Excel Part 1

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Join us for part 1 of this very important 2-part series. There is just too much information to pack into one day.

Once you sign up for Part 1 for 10/25/2023, please sign up for Part 2 on 10/26/2023 at:


11 am PT / 12 pm MT / 1 pm CT / 2 pm ET
*approximate length: 45 minutes to 1 hour

Presenter: David Ringstrom, CPA

Common area maintenance (CAM) allocations can be a tricky endeavor in Excel because the devil is in the details. In this presentation Excel expert David H. Ringstrom, CPA will show you how to use techniques such as Power Query to create CAM reconciliation templates that you can easily funnel tenant data through. Design strategies will include using look-up functions to return prior year data and building in check figures.

David demonstrates every technique at least twice: first, on a PowerPoint slide with numbered steps, and second, in the subscription-based Microsoft 365 (formerly Office 365) version of Excel. David draws your attention to any differences in the older versions of Excel (2021, 2019, 2016 and earlier) during the presentation as well as in his detailed handouts. David also provides an Excel workbook that includes most of the examples he uses during the webcast.

Microsoft 365 is a subscription-based product that provides new feature updates as often as monthly. Conversely, the perpetual licensed versions of Excel have feature sets that don't change. Perpetual licensed versions have year numbers, such as Excel 2021, Excel 2019, and so on.

Who should attend: Practitioners who need to put together common area maintenance allocation spreadsheets

Topics covered:

  • Adding Totals to the CAM Reconciliation
  • Calculating CAM true-up amounts
  • Calculating projected CAM
  • Creating an in-cell list by way of Excel’s Data Validation feature
  • Importing rent rolls into Excel by way of Power Query
  • Improving the integrity of spreadsheets with Excel’s VLOOKUP function
  • Looking up the projected CAM pool amount with the SUMIF function
  • Swapping out rent rolls in Power Query to apply most of your CAM work on one property to other properties
  • Using Data Validation and the SUMIF function to create a CAM reconciliation schedule for your tenants

Learning objectives:

  • State how to use Power Query in Excel to connect to external reports
  • Recall the arguments for look-up functions such as SUMIF
  • Describe how to use the Table command in Excel to improve spreadsheet integrity

Level: Intermediate

David H. Ringstrom, CPA, is an author and nationally recognized instructor who teaches scores of webinars each year. His Excel courses are based on 25 years of consulting and teaching experience. David’s mantra is “Either you work Excel, or it works you,” so he focuses on what he sees users don’t, but should, know about Microsoft Excel. His goal is to empower you to use Excel more effectively.

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