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January 08, 2026

    Create a Foolproof System for Tracking Rental Property Expenses

    In the military, "Expect the unexpected!" becomes a way of life. For example, just when you think you've found a great place to settle and call home, unexpected PCS orders can show up and throw off your plan.

    After the final orders arrive, and you decide to keep your house and operate it as a rental property investment, you'll learn that owning military rentals is an active business that requires meticulous record-keeping skills to track expenses and stay out of the IRS’s way. 

    As you're stepping into the role of a landlord and learning how to manage rental property, consider these four tips for building a foolproof system for tracking investment properties, regardless of real estate market trends. 

    Couple at home working on laptop computer. The man is wearing glasses and the woman is taking notes on paper.Photo from Shutterstock

    1. Review IRS Deductions

    Ultimately, as an owner of investment properties, your goal is to adhere to IRS tax regulations, keep your business running legally, and earn some profit beyond your mortgage payment. 

    Common rental property deductions:

    • Mortgage interest 
    • Property tax 
    • Operating expenses: advertising, utilities, insurance, legal, and accounting fees  
    • Depreciation
    • Repairs

    Now that you know what details to collect, you’ll need a way to sift and store the information.

    2. Create a Comprehensive Rental Property Expense Log 

    Building a running record of your rental income and expenses associated with the property management business is the best way to keep your costs clear and straightforward. Creating a log also avoids overwhelming paper shuffling when tax time rolls around. 

    It's up to you how you organize the numbers, whether it's a fancy or simple system, but many property owners start with an easy spreadsheet with categories that match their needs. 

    Our free guide for landlords below offers helpful hints on how to sort and compile everything into a template, such as:

    • Rental income 
    • Rent amount
    • Late fees 
    • Monthly expenses
    • Utilities
    • Landscaping 

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    Accounting Software for Small Businesses

    You may need a more complex organization system if you have more than one rental property. Consider investing in small business accounting software like QuickBooks. It’s interactive and lets you analyze your rental property data in multiple ways.

    Use a Property Management App 

    If you choose a property management app, you’ll join other savvy rental home business owners. Not only do the apps keep track of your expenses, but they also have the power to: 

    • Collect rent payments electronically with debit and credit cards, ACH transfers, and eChecks.
    • Store communication with each of your tenants for faster questions and answers. 
    • List your rental on major websites.
    • Ask potential tenants to fill out applications
    • Conduct tenant screening  
    • Send text and email reminders for payment and maintenance appointments 

    Research name brands like Buildium, Rent Manager, Rentec Direct, and Tenant Cloud to find the perfect fit. 

    If you're looking for help with tenant screening, check out RentRisk!

    3. Keep Your Rental Property Receipts

    If there’s ever a problem with the IRS and your military rentals, receipts become crucial to defending your filing process. Regularly reviewing and reconciling receipts is essential for accuracy and compliance. Schedule time each month to update your expense log and cross-reference receipts to minimize the risk of errors.

    Hard Copies and Digital Receipts 

    Even though many receipts are electronically delivered, you’ll probably still run into a few paper receipts, so you’ll need a way to store them securely. Of course, you can go old school and use a file folder with descriptive tabs, like Pest Control or Repairs, but more and more, rental property owners are storing their receipts digitally—scanned copies don’t get lost or faded. 

    Scanning each item or taking a photo creates digital copies of the receipts to store on your computer, app, or cloud and retrieve later. Most phones have built-in scanning apps, but you can also download other options like CamScanner to help you upload and organize files.

    Worker cleaning up the stone driveway from autumn leavesPhoto from Shutterstock 

    4. Set a Rental Property Maintenance Schedule 

    Use an online calendar, like Google Calendar or some of the above property management apps, to establish a structured timeline for property inspections, repairs, and maintenance tasks. 

    If you incorporate reminders for seasonal upkeep and documenting repairs, you’ll ensure detailed coverage for tax season. Documenting a timeline of when you’ve checked on the house or made repairs also eases the concerns about small issues that could become big problems.

    If you take the time to implement a system that supports how to manage rental property, which includes logging expenses, receipt management, and scheduling, you’ll maximize your chances of overcoming rental property ownership challenges with ease and expertise. 

    Don't reinvent the wheel if you’re a first-time rental property owner. Engage in online landlord/property management forums, attend professional workshops, and ask for help from experienced landlords so you can continually refine your management skills, weather real estate market trends, and enhance your effectiveness as a property manager.

    Neutral home interior with kitchen and yellow accents with text, How to Keep Track of Rental Property Expenses

    Dawn M. Smith

    Author

    Dawn M. Smith

    Dawn M. Smith has made a career out of being a relocation pro. As a military spouse with 10+ moves under her belt, she's evolved from a reluctant mover to a master of converting cardboard box mountain nightmares into customized homes. She's constantly updating her skills to improve all aspects of moving. Her specialties include strategic (with a dose of luck) house hunting, home buying, selling, and renting, and attempting to create Pinterest-worthy spaces within landlord-approved decorating. When not decoding neighborhood demographics for readers, Dawn teaches companies how to serve military families and their best interests. She also travels and explores historic districts with her family, always scouting her next possible address after Army retirement. In addition to MilitaryByOwner, Dawn's relocation advice has appeared in Angi, The Spruce, Forbes Home Advisor, the PODS Blog, and Military OneSource.