Know Your Numbers. Run Your Business Better.

Bookkeeping and accounting systems shouldn’t slow you down. Corner Office helps you get organized, streamline your financial processes, and understand your numbers, so you can make smarter decisions and focus on growing your business.

Book a ConsultationFree, no-obligation consultation. Learn what works for you and you alone.

About Corner Office

Since 1995, Corner Office has helped business owners build reliable accounting systems and understand their numbers. We bring more than 30 years of accounting expertise, practical training, and proven technology to simplify your back-office work.

We do more than process transactions. We teach, guide, and support you, so you can run your business with confidence.

Diana Cohn

Meet Diana

Diana simplifies complicated processes, fixes bookkeeping problems, and designs workflows and reports that make sense. Her hands-on training gives owners and their staff the confidence to use their systems.

Known for her direct approach and sense of humor, Diana turns accounting confusion into accurate information and better business decisions.

What Clients Say

Knew when to invest, and when to slow down

“Diana and the Corner Office team did an amazing job from day one in ensuring the bookkeeping was properly kept up in QuickBooks, and thanks to that, we knew exactly when we could invest more into the business, and when we needed to slow down on spending.”

Omar Z., Port 53 Technologies Inc.

Complicated accounts, made manageable

“When we started working with them, they were immediately able to make sense of all our various accounts, income streams and expenses… Then they set up an organized, sustainable and manageable record keeping process for moving forward. It is such a relief!”

David S., Chi Nei Tsang Institute

Over 1,500 invoices a year, handled

“She manages the invoicing, sales tax calculation, A/R and A/P processes, involving over 1,500 invoices per year and payment of all the Company’s consultants and vendors.”

David A., MACH Energy

Reliable Books Without Building an Accounting Department

Collaborative bookkeeping gives you professional accounting support without taking you out of the process. We divide the work based on your staff, skills, and business needs, and regular meetings keep everyone informed.

Who does what

Corner Office can handleYou remain responsible forBusiness benefit
Record and categorize income and expensesProvide complete and timely informationMore accurate monthly financial information
Post bills and attach supporting documentsApprove and make vendor payments unless payment service is includedOrganized accounts payable and fewer missing bills
Record customer activity and depositsProvide sales or billing informationBetter accounts receivable tracking
Import or post payroll entriesProcess or approve payroll through the payroll providerPayroll activity agrees with the accounting records
Maintain vendor information and track W-9sObtain missing vendor information when necessaryEasier and more accurate 1099 preparation
Reconcile bank, credit card, and loan accountsProvide account access and statementsErrors and duplicate transactions are found sooner
Record loans, owner contributions, reimbursements, rebates, and other activityExplain unusual or personal transactionsMore reliable balance-sheet reporting
Organize receipts and accounting documentsSubmit documents through the agreed systemLess time searching for financial records
Prepare standard financial reportsAttend scheduled review meetingsOwners understand profitability, cash, and business performance
Answer accounting and workflow questionsRespond to open questions promptlyProblems are resolved before they become expensive
Coordinate information with the tax preparerAuthorize communication and provide tax-related informationSmoother year-end and tax preparation
Recommend applications and workflow improvementsApprove changes and associated costsLess repetitive work and better internal controls

The result is dependable books, a clear division of responsibilities, and more time for you and your staff to focus on customers, operations, and revenue.

Your Accounting System Should Help You Run Your Business

Whether you need a new QuickBooks Online file, a conversion from QuickBooks Desktop, a major cleanup, staff training, or ongoing bookkeeping, we start by learning how your business actually operates. Then we design the structure, procedures, apps, and reports around your needs.

An accounting system is more than a QuickBooks subscription. It’s your company file, chart of accounts, customer and vendor records, products and services, connected apps, procedures, and reports, all working together.

We can help when

  • Your books are unreliable, overly complicated, or hard to understand
  • You’re moving from QuickBooks Desktop to QuickBooks Online
  • Your QuickBooks file has years of errors or structural problems
  • You need a new file for a new company, partnership, or business structure
  • Your business has outgrown its original accounting setup
  • Your staff use inconsistent procedures
  • Payroll, banking, sales, inventory, or job costing apps don’t work together
  • Your reports don’t give you the information you need to manage the business

Our Process

  1. Assessment and discovery

    We review your current system, workflows, reporting needs, apps, and priorities.

  2. System design

    We design your chart of accounts, customer and vendor structure, products and services, tracking, workflows, and reports.

  3. Implementation or conversion

    We build the new file, correct or transfer data, connect your apps, and set up reliable procedures.

  4. Training and documentation

    We train the people who use the system and document the procedures they need to follow.

  5. Ongoing support

    We stay available for questions, troubleshooting, more training, and improvements.

The result is a sustainable accounting system that supports accurate reporting, efficient processing, and confident business decisions.

Book a Consultation

Learn what works for you and you alone.

Our free consultation includes a session in which we conduct a “30,000-foot view” assessment of the needs of your business. If you don’t quite know where to get started, this is the perfect session for you. What have you got to lose from having a free conversation with an expert?