Most rental property owners know roughly what they collect each month. Ask them their actual net cash flow after every expense, and you’ll get a pause, a shrug, or a number that doesn’t hold up to scrutiny.
That’s not a judgment. It’s just what we see constantly working with owners across Chattanooga. People get into rental properties because they want income. They start tracking the rent that comes in, and then life gets busy, maintenance calls happen, tenants turn over, and before long there’s a pile of bank transactions that doesn’t tell any coherent story.
If you’re a landlord managing one property or ten, this is worth reading. We’re going to break down what you should actually be tracking, why most owners aren’t doing it, and what the difference looks like at tax time and when you’re deciding whether to hold, sell, or buy again.
In This Guide
Gross Rent Is a Vanity Number
Let’s get this one out of the way first.
$1,300 a month sounds great. And look, rent collections do matter. But $1,300 collected is not $1,300 earned. Not even close.
On a typical single-family rental here in Chattanooga, you’ve got a management fee running 8–10% of collected rent. At 10%, that’s $130 off the top. Add insurance, which commonly runs $1,200–$2,000 per year on a single-family home in Hamilton County (storm and hail exposure in the Tennessee Valley has pushed premiums up since 2020). Add property taxes, which can shift significantly after reassessment cycles in Hamilton County that happen every four to six years. Add your maintenance reserve, which by industry standard should be about 1% of property value per year. On a $200,000 home, that’s $2,000 a year, or roughly $167 a month.
Do that math and the true monthly cash flow on a $1,300/month property often lands somewhere between $300 and $500. Sometimes lower.
Owners who only look at gross rent make decisions based on a number that doesn’t reflect reality. That’s how people end up holding a property that’s bleeding equity or passing on a sale that would’ve made them more money than another five years of collections.
Vacancy Has a Daily Price Tag
A vacant unit costs you $43 a day at the $1,300/month average rental rate we work with across our portfolio.
“A vacant unit costs you $43 a day at the $1,300/month average rental rate we work with across our portfolio.”
That’s not a dramatic way of saying vacancy is bad. It’s just arithmetic. Thirty days vacant is $1,290 gone. Sixty days is nearly $2,600. And that doesn’t count the turnover costs that usually come alongside it.
We see owners treat vacancy like a temporary inconvenience rather than a line item. It should absolutely be a line item. Every time a tenant turns over, you should log the vacancy start date, the move-in date on the new lease, and the exact dollar amount of lost revenue during that window. When you track it that way, patterns show up. Maybe you’re consistently losing four to six weeks between tenants and you don’t realize it. Maybe you’re pricing the re-list too high and sitting longer than you need to.
A well-run property hits the market fast and fills fast. We use Tenant Turner to manage showing coordination, which keeps units from sitting idle between a vacancy posting and a showing that never gets scheduled. Speed matters. Every day you shave off vacancy is $43 back in your pocket.
Security Deposits Are Not Your Money
This one trips people up more than almost anything else.
Security deposits in Tennessee aren’t capped by state law, but most landlords in this market collect one to two months’ rent, so somewhere in the range of $1,300 to $2,600. Here’s where the accounting error happens: some owners just drop that into their regular checking account and mentally file it as income. It is not income.
A security deposit is a liability. It represents an amount you may owe back to the tenant. It needs to be held separately from your operating funds, and it should appear on your books as a liability, not as revenue.
Why does this matter beyond just clean bookkeeping? Because Tennessee law (T.C.A. § 66-28) requires you to return the deposit and provide a written accounting of any deductions within 30 days of move-out. If you can’t produce that accounting on time, you lose the right to keep any portion of the deposit. The documentation piece is a financial tracking issue, not just a legal one.
We worked with an owner once who had 18 months of rental income lumped in a personal account with no separation at all, security deposits included. At tax time, their CPA had to reconstruct everything manually. That reconstruction cost them $600–$800 in extra accounting fees, and their CPA suspected they’d missed deductions on top of it.
Maintenance Expenses Belong in Their Own Category
Owners who panic at an $800 maintenance charge on a monthly statement are thinking about it wrong.
Maintenance is not a surprise. It’s a cost of owning a physical asset. The question isn’t whether you’ll have it. The question is whether you’re tracking it in a way that tells you something useful.
Track at the Unit Level
If you own multiple units, you need per-unit maintenance records. We had an owner managing a multi-family property who kept everything in a spreadsheet but lumped all maintenance costs together. When it came time to evaluate which unit to renovate and which to sell, they had no way to answer the question. They couldn’t tell which unit was profitable. BPM’s AppFolio reporting gave them unit-level clarity within the first quarter of switching over.
The Real Cost of Skipping Small Repairs
A $150 HVAC filter issue deferred for two years becomes a $4,000 replacement. We see it more often than we should. Consistent small-ticket maintenance tracking is how you protect equity on a $200,000 asset. The owners who never seem to have big repair bills aren’t lucky. They’re just tracking the small ones.
Our team responds to maintenance within 24 to 48 hours as a standard. That keeps small issues from stacking up.
Pet Fees and Pet Rent Are Revenue You Might Be Missing
This one doesn’t get enough attention.
Most properties we manage are pet-friendly, and applicants go through pet screening via PetScreening.com. That process produces documentation. It also produces revenue in the form of one-time pet fees or monthly pet rent, depending on how the lease is structured.
One-time pet fees around here typically run $200–$500. Monthly pet rent tends to land in the $25–$75 per pet range. On a two-pet household paying $50 per pet in monthly pet rent, that’s $100 a month added to your effective rent. Over a 12-month lease, $1,200.
Here’s the problem we’ve seen: some owners collect pet fees informally. Cash, no receipt, no lease addendum. We worked with an owner doing exactly that across two properties. When a tenant disputed a move-out charge, the owner couldn’t document the pet fee as collected income or separate the pet damage as a specific claim. They ended up recovering nothing on a carpet replacement that cost over $900.
Track pet fees in their own line item. Keep them separate from base rent. If there’s ever a dispute, that documentation is the difference between recovering your costs and absorbing them.
How Tennessee’s Tax Picture Affects Your Tracking
Tennessee doesn’t collect a state income tax on wages, but rental income is fully subject to federal taxation. If you’re in the 22% federal bracket, a $1,300 rental payment carries roughly $286 in federal tax exposure, assuming you’re not offsetting it with documented deductions.
The keyword there is documented. Mortgage interest, insurance, property taxes, management fees, maintenance costs, depreciation — all of these reduce your taxable rental income. But only if you’ve actually logged them. Your CPA cannot deduct what they can’t see.
This is one of the reasons Chanda, who founded BPM after years in commercial and multi-family management, built the company around AppFolio from the start. Owners get monthly statements that break out income, expenses, and net returns clearly. That statement is what you hand your accountant. It’s also what you use to actually understand whether the property is worth keeping.
And by the way, Hamilton County property tax assessments can shift meaningfully after reassessment cycles. Don’t treat property tax as a fixed number. Check it after each cycle and update your expense tracking accordingly.
The Section 8 and HUD Ledger Problem
If you manage any Section 8 or HUD-assisted properties, your accounting needs to account for how the Housing Authority of Chattanooga (HAC) processes payments.
HAC payments arrive on a fixed government schedule, and they don’t always align with the first of the month like a conventional tenant payment would. Mixing HAC payments and private-pay tenant payments in the same ledger without proper categorization creates reconciliation headaches and can make your income reporting look inconsistent, even when it isn’t.
We manage Section 8 properties as part of our portfolio here, and keeping those ledgers separate from private-pay ledgers is non-negotiable for clean reporting. If you’ve been commingling them, your year-end totals are probably harder to reconcile than they need to be.
Late Fees: Consistent Tracking or Consistent Loss
Tennessee law requires that late fees be specified in the lease to be enforceable. Most leases in this market charge either a flat fee, typically $50–$75, or a percentage of rent, often around 5%, which works out to about $65 on a $1,300 lease.
That’s not life-changing money per incident. But across a portfolio of properties with occasional late payers, inconsistent tracking of late fees adds up fast. We’ve seen owners waive late fees informally, never log them, and then have no clear record of payment patterns when a tenant dispute comes up later.
Log every late fee charged. Log every waiver. If you have a reason to waive it occasionally, fine, but note it. That record protects you and keeps your accounting accurate.
Benchmarking Rent Annually Is Financial Tracking Too
Rent benchmarking isn’t just a leasing decision. It’s a financial one.
Hamilton County saw rent increases of 15–20% between 2020 and 2023. Owners who weren’t adjusting at renewal during that window were potentially leaving $100–$200 per month on the table. Over a 12-month lease, that’s $1,200–$2,400 in revenue that simply didn’t happen because no one looked at the market.
Your monthly tracking should include a note on where your current rent sits relative to what comparable units are renting for locally. We pull that data regularly for the owners we work with. On a portfolio our size, seeing 400 properties across the Chattanooga market gives us a pretty clear read on what’s moving and at what price.
One couple who switched to BPM after self-managing their rental told us they had no idea what their actual net return was until they saw their first monthly owner statement from us. They’d been calculating in gross rent only, with no accounting for maintenance, vacancy gaps, or management fees. Seeing the real number was a shock. But it was also the first time they could make an informed decision about their investment.
What Good Financial Tracking Actually Looks Like
Here’s the minimum every owner should be doing, regardless of whether you’re self-managing or working with a property management company.
Every month, you should know your gross rent collected, your management fee, your maintenance costs broken down by property or unit, your insurance and tax contributions allocated across months, your vacancy costs if any, your pet fee and late fee income tracked separately, and your net operating income.
If you don’t have those numbers every month, you’re flying blind.
AppFolio generates all of that automatically for the owners we work with. Each owner gets a monthly statement they can take directly to their CPA. That alone saves them time and accounting fees every year, and it means the records exist if there’s ever a dispute, an audit, or a refinance.
Jill, one of our property managers, walks new owners through the AppFolio statement format during onboarding so they know what they’re looking at and what questions to ask. That kind of clarity from the start makes the whole relationship work better.
The Difference Between Long-Term and Short-Term Rental Math
Some owners we talk to are tempted by short-term rental revenue. We get it. The nightly rates look impressive.
But compare $1,300 per month on a long-term lease, which is $15,600 per year in predictable, trackable income, against short-term rental revenue that can swing 30–50% seasonally. The short-term model carries higher operating costs in cleaning, turnover, supplies, platform fees, and variable insurance. The income is harder to project and harder to track.
For most owners in this market with a single-family home or a small multi-family portfolio, the long-term rental model is easier to manage financially. The numbers are consistent, the ledger is cleaner, and there’s no off-season gap to account for.
That’s not a universal truth. But it’s worth running the actual math on your specific property before assuming short-term wins.
What Happens When You Don’t Track
We’ve already walked through a few examples, but let’s be honest about the worst-case version.
An owner with 18 months of commingled income and no expense records walks into tax season with a CPA who has to reconstruct everything manually. That costs real money and likely leaves deductions unclaimed. An owner who doesn’t track pet fees informally ends up absorbing $900 in carpet damage with nothing to show for it. An owner who never benchmarks rent loses $1,200 to $2,400 per year per property without ever noticing.
None of these are dramatic failures. They’re just slow, quiet financial losses that stack up over time.
Good tracking doesn’t require a finance degree. It requires a system and the discipline to use it monthly.
What We See After Owners Get a Real Ledger
There’s a consistent pattern we notice when an owner transitions from informal tracking to a real system. The first reaction is usually “oh.” They see their net number for the first time and it’s lower than what they’d been assuming. That’s uncomfortable.
But within a few months, something else happens. They start making better calls. They can see which unit is underperforming. They can see whether a rent increase at renewal is justified by market data. They can hand their accountant a clean, organized statement instead of a shoebox of receipts.
We’re based right here in Chattanooga and manage property rentals across Hamilton County, including single-family homes, multi-family units, townhomes, condos, Section 8 properties, and commercial. Six years in, with 40 owners and 400 properties, the financial visibility we provide is one of the things owners mention most when they describe why they stay.
One client summed it up plainly: “My wife and I recently switched to BPM to manage the rental of our Chattanooga property. Chanda and Jill have been very responsive and, within a few weeks, were able to market and find a qualified tenant. Great work!”
That kind of quick placement matters financially. A unit that fills in two weeks instead of six just recovered $1,204 in revenue that a slower process would’ve lost.
You Can’t Manage What You’re Not Measuring
If the financial side of your rental property feels murkier than it should, we’re happy to have a conversation.
We don’t do phone trees. When you call BPM, someone picks up. Owners and tenants can reach Chanda directly if they need to. The team, including Jill and Christina, has a combined 50 years of property management experience between them. That depth shows up in how we track, report, and communicate the numbers to every owner we work with.
If you’ve been collecting rent and hoping the math works out, it might be time to actually find out.
FAQ
What financial records should a landlord keep for tax purposes?
At minimum, you should keep records of all rental income collected, every expense paid (maintenance, insurance, property taxes, management fees, and mortgage interest), security deposit transactions, and any lease-related fees like late charges or pet fees. The cleaner your records, the easier it is for your CPA to claim every deduction you’re entitled to.
How do I know if my rental property is actually profitable?
Calculate your net operating income, which is your gross rent minus vacancy, maintenance, management fees, insurance, property taxes, and your maintenance reserve. Most owners are surprised to find their actual monthly cash flow runs closer to $300–$500 on a $1,300/month property once all real expenses are accounted for.
Should I track pet fees separately from rent?
Yes. Pet fees and monthly pet rent are separate revenue streams that need their own line items. If you ever have a move-out dispute involving pet damage, you’ll need documentation showing the fee was collected and the terms were in the lease. Informal cash collection with no paper trail creates real problems.
How often should I review my rental rates?
At every lease renewal, at minimum. Rents in Hamilton County climbed 15–20% between 2020 and 2023, and owners who weren’t checking comparable market rates at renewal left real money uncollected. An annual rent review takes about 20 minutes and can add hundreds of dollars per month to your income if the market supports it.
What’s the difference between a pet fee and pet rent, and does it matter financially?
A pet fee is a one-time charge, typically $200–$500 in this market. Pet rent is a recurring monthly charge, usually $25–$75 per pet. Which one you use depends on your lease structure, but both need to be documented in the lease and tracked separately from base rent for accurate income reporting and move-out accounting.
Is it a problem to keep security deposits in my regular bank account?
Yes. Security deposits are liabilities, not income. Commingling them with your operating funds creates accounting errors and can cause compliance problems. In Tennessee, you have 30 days after move-out to return the deposit or provide a written accounting of deductions. If your records are a mess because the funds were mixed, meeting that deadline cleanly becomes much harder.
Why does vacancy cost matter if a unit fills up eventually?
Because the clock runs the moment a tenant moves out. At $1,300/month, that’s $43 per day in lost revenue. A 45-day vacancy between tenants costs approximately $1,935. Tracking that number per turnover gives you real data on whether your pricing, marketing, or showing process needs adjustment.
