Digitization of real estate management: From Excel to a professional system

You started with one apartment and a simple excel file. Today you are managing five properties, you have three different spreadsheets that sometimes contradict each other, and you have spent the last hour looking for exactly when Mr. Kolar's lease expired. Does this sound familiar? Then it's time to switch from manual management to a professional property management system. In this guide, we'll walk you through the entire process from recognizing the need for a change to successfully migrating.

When is it time to switch from Excel

Warning signs

If you experience more than three of the following, it's time for a change:

1. Losing track of payments You don't know for sure who paid and who didn't. It takes hours to check the bank statement and compare it with the spreadsheet.

2. Duplicate data You have the same information in multiple places (spreadsheets, emails, paper folders) and you are not sure which version is current.

3. Missed deadlines You forgot the end of the rental agreement, boiler inspection date or service billing date.

4. Growing portfolio You manage more than 3-5 properties and the administration overwhelms you.

5. Incorrect calculations With Excel, you repeatedly find that formulas do not work correctly or you accidentally overwrite important data.

6. Ineffective communication You are looking for e-mails from tenants in an overflowing inbox. You do not have an overview of the communication history.

7. Billing issues Annual service billing is a nightmare. You collect data from dozens of sources and the calculation takes days.

8. Insufficient documentation You do not have an overview of the state of real estate, repairs made, valid contracts.

Test: Do you need a system?

Answer these questions:

• How many hours a week do you spend on rental administration? (If more than 3-5 hours, the system saves time)
• How many properties do you manage? (Over 3 properties, the system pays off significantly)
• Have you ever missed an unpaid payment? (If yes, the system will solve it)
• Can you find out the status of any tenant within 30 seconds? (If not, you need a system)

Comparison: Excel vs. professional system

Tenant records

Excel:

• Manual entry into the table
• Changes require manual updating in several places
• No reminders or automation
• Risk of overwriting or deleting data

Professional system:

• Structured database with linked records
• One change will be reflected everywhere
• Automatic notification of important terms
• History of changes and renewal option

Payment tracking

Excel:

• Manual comparison of bank statements
• Time consuming (30-60 minutes per week for 5 properties)
• Easy to overlook missing payments
• No automatic reminders

Professional system:

• Automatic matching of payments with prescriptions
• Instant overview about debts
• Automatic reminders in case of delay
• Time savings: 5-10 minutes per week

Billing services

Excel:

• Manual data collection from invoices and meters
• Complex formulas for billing
• High risk of errors
• Processing: 4-8 hours per property

Professional system:

• Automatic calculation based on entered data
• Predefined billing keys
• Data consistency check
• Processing: 30-60 minutes per property

Management of contracts

Excel:

• Contracts stored in different folders
• No notification of expiring contracts
• Difficult search
• Risk of loss of documents

Professional system:

• Central storage of documents
• Automatic notification before the end of the contract
• Full-text search
• Safe backup

Reporting and overview

Excel:

• Manual creation of charts and reports
• Limited analysis options
• Out-of-date data (depends on the last update)
• Sharing: sending files by email

Professional system:

• Automatic reports and dashboards
• Advanced analytical tools
• Real-time data
• Sharing: link or export

What to focus on when choosing a system

Key features

1. Records of properties and units

• Detailed description of each property
• Photo gallery and documents
• Technical parameters and equipment
• Repair and maintenance history

2. Tenant records

• Contact details and contracts
• History of payments and communication
• Documents (contracts, protocols)
• Overview of receivables

3. Financial management

• Rent and deposit regulations
• Payment tracking and matching
• Cost and income records
• Profitability overview

4. Billing of services

• Automatic calculation of billing
• Support of various billing keys
• Records of meters and readings
• Generation of outputs for tenants

5. Notifications and calendar

• Expiring contracts
• Due payments
• Scheduled revisions and inspections
• Important dates

6. Documents and communications

• Contract and document storage
• Document templates
• History of communication with tenants
• Mass correspondence

Technical requirements

Accessibility:

• Web application (access from anywhere)
• Mobile version or app
• Multiple users with different roles

Security:

• Encryption data
• Regular backups
• Two-factor authentication
• Compliance with GDPR

Integration:

• Connection to bank accounts
• Export to accounting systems
• API for custom integration

Migration process: Step by step

Phase 1: Preparation (1-2 weeks)

Inventory of existing date:

1. List all properties and units
2. Check that tenant data is up-to-date
3. Verify the validity of contracts
4. Check the status of payments and receivables

Data cleaning:

1. Fix bugs and inconsistencies
2. Complete the missing data
3. Unify formats (dates, amounts, addresses)
4. Eliminate duplication

Digitalization of paper documents:

1. Scan all contracts
2. Scan forwarding logs
3. Scan important correspondence
4. Organize files into a logical structure

Phase 2: System setup (1 week)

Configuration:

1. Create an account and set up a profile
2. Set up the structure of properties and units
3. Define cost and income categories
4. Set billing keys
5. Configure notification

Import data:

1. Upload property details
2. Enter tenant information
3. Import financial history
4. Upload documents and contracts

Phase 3: Parallel operation (2-4 weeks)

Recommended procedure:

1. Keep records in both

2 systems for a period of 2-4 weeks. Compare outputs (payments, balances, reports)

1. Identify and correct discrepancies
2. Gradually learn new functions

Why parallel operation:

• You will verify the correctness of the data in the new system
• You will catch errors during migration
• You will learn the system without stress
• You have a backup solution

Phase 4: Full transition

After verifying the correctness of the data and mastering the new system:

1. End the line in Excel
2. Archive old files (don't delete them)
3. Set up regular backups of the new system
4. Inform potential collaborators about the change

Return on Investment (ROI) calculation

Time savings

Typical time savings for managing 5 properties:

Activity	Excel (monthly)	System (monthly)	Saving
Payment Check	4 hours	30 minutes	3.5 hours
Communication with tenants	3 hours	1 hour	2 hours
Records and Updates	2 hours	30 minutes	1.5 hours
Billing (annual, conversion)	5 hours	1 hour	4 hours
Reporting	2 hours	15 minutes	1.75 hours
Total	4 p.m.	3.25 hours	12.75 hours

Annual savings: approximately 150 hours

Financial savings

Direct savings:

• Timely detection of non-payers: you will prevent losses of Kč 5,000-20,000 per year
• Correct invoicing: avoid claims and disputes
• Not overlooked deadlines: you will avoid fines and sanctions

Indirect savings:

• Less stress and better organization
• More professional behavior towards tenants
• Better decision-making thanks to clear data

Example ROI

Costs for the system:

• Monthly fee: 500-2,000 Kč (depending on the number of properties)
• Annual costs: 6,000-24,000 Kč

Benefits:

• Time savings (150 hours x 300 Kč/hour): 45,000 Kč
• Prevention of losses from non-payers: 10,000 Kč
• Correct billing (prevention of disputes): 5,000 Kč
• Total annual benefit: approx. Kč 60,000

ROI: 150-900% (depends on the price of the system)

Most common migration mistakes

Mistake 1: Migrating without preparation

Problem: You start using a new system without cleaning up your existing data. Result: chaos in the new system.

Solution: Invest 1-2 weeks in data preparation and cleaning before migration.

Mistake 2: Missing parallel traffic

Problem: Stop using Excel immediately. If there is an error in the new system, you do not have a backup.

Solution: At least 2 weeks of parallel operation with output comparison.

Error 3: Incomplete migration

Problem: You transfer only part of the data (current tenants), but you forget the payment history, old contracts or archive documents.

Solution: Create a checklist of all data categories and transfer them systematically.

Error 4: Ignoring training

Problem: You have the system, but you don't know its functions. You are only using a fraction of the options.

Solution: Take the time to thoroughly study the documentation and take advantage of available training.

Mistake 5: Too ambitious start

Problem: You want to use all the features of the system at once. The result: overwhelm and frustration.

Solution: Start with basic features (records, payments) and gradually add advanced ones (billing, reporting).

30-day transition plan

Week 1: Decision and preparation

• Day 1-2: Choose system, register, explore interface
• Day 3-4: Inventory of existing data in Excel
• Day 5-7: Cleaning data, correcting errors, supplementing data

Week 2: Setup and import

• Day 8-9: System setup (properties, categories, parameters)
• Day 10-11: Import data about properties and tenants
• Day 12-14: Import financial history and upload of documents

Week 3: Parallel operation

• Day 15-21: Keeping records in both systems
• Daily comparison of key data (balances, regulations)
• Identification and correction of discrepancies
• Learning advanced functions

Week 4: Transition and optimization

• Day 22-24: Evaluation of parallel operation
• Day 25-26: Fixing the last discrepancies
• Day 27-28: Setting up automations and alerts
• Day 29-30: Quitting Excel, archiving old files

The future of property management

Trends that are coming

Artificial intelligence:

• Predicting the risk of defaulters
• Automatic categorization of documents
• Intelligent recommendations for optimization

Internet of things (IoT):

• Smart meters with automatic sending of readings
• Water leakage and fire sensors
• Automated heating control

Automation:

• Automatic generation of contracts
• Robotic payment processing
• Automatic billing of services

Portals for tenant:

• Online rent payments
• Reporting defects via the application
• Access to documents and bills

Why start now

The sooner you switch to a digital system, the sooner you:

• You will have more historical data at your disposal
• You will be better prepared for future regulations
• You will save more time in the long run
• You will appear more professional tenant

Summary

Switching from Excel to a professional property management system is an investment that pays back many times over:

• Time savings: up to 150 hours per year managing 5 properties
• Financial benefit: ROI 150-900% due to loss prevention and time savings
• Professionalism: better services tenants, less disputes
• Peace of mind: automatic notifications, no missed deadlines

The key to a successful transition is thorough data preparation, parallel operation and gradual adoption of new functions. Don't be discouraged by the initial effort, the results will come quickly and will permanently change the way you manage your properties.

How Grento will help you

Grento is the most comprehensive Czech real estate management platform that will help you transition from spreadsheets to a professional system. Data import, automatic reminders, payment matching and service billing. Try Grento for free and see for yourself.

> Czech-law scope and editorial note: Legal, tax, accounting, tenancy, service-charge, condominium, metrology, insurance and data-protection statements in this article refer to the Czech Republic and the rules effective for the relevant date. Figures and examples are illustrative, not legal or tax advice. Verify current rules with the relevant Czech authority or a qualified adviser.