Most landlords do a hard look at their portfolio once a year. In January, when they are pulling numbers for their CPA. By the time they realize something has been off, it has been off for six months.
May is the right time to do a real audit. Summer is when leases expire. It is when tenants move. It is when insurance renewals hit. It is when lenders want updated rent rolls for refinances. And it is when six months of untracked drift, fees creeping up, rents sitting below market, a lease nobody renewed, becomes expensive.
Here are the six questions every landlord with a property manager should be able to answer right now. If you cannot answer any of them in under five minutes, that is the audit result.
Question 1: Is Every Property Actually Cash Flowing What You Think?
This sounds obvious. It is not.
Most landlords know their gross rent and their mortgage payment. They subtract one from the other and call it cash flow. That number is almost always wrong.
Real cash flow accounts for management fees, vacancy, maintenance reserves, property taxes, insurance, and any one-off repairs that hit this year. Most landlords have a number in their head that was calculated when they bought the property and has not been updated since.
If you have 5 properties, you likely have 5 different cash flow assumptions in your head, each of them increasingly stale.
The mid-year audit question is simple: pull your actual income and actual expenses for every property for January through April. What is the real NOI per property? Is it what you expected? If one property is running 20% below your projection, you want to know that in May, not in December when you are filing taxes.
If that question takes you more than 30 minutes to answer across your whole portfolio, your tracking system is the problem.
Question 2: Which Leases Are Expiring in the Next 120 Days?
September, October, and November are when landlords get caught off guard by lease expirations. They find out in August that a tenant is not renewing, scramble to re-lease, eat a vacancy month or two, and pay a leasing commission they were not planning for.
The cost of a missed renewal is not just the vacancy. On a $1,400 per month property, a 45-day turnover is roughly $4,200 in lost rent alone, plus a leasing fee (often 50% to 100% of one month rent), plus turnover make-ready costs. You are looking at $6,000 to $8,000 for a gap you could have closed with a renewal conversation in May.
Right now, in May, you have a 120-day window before fall lease expirations become a problem. Check every lease. Know the expiration date. Know which tenants have already indicated they plan to renew and which ones have not said anything.
If you are using property managers, they should be tracking this. But should be and are are different things. You need to verify it yourself, not assume your PM has it handled.
Question 3: Is Your Insurance Current and Adequately Covered?
Landlord insurance rates have moved significantly in the past 18 months. Properties that were adequately covered at purchase may now be underinsured given replacement cost increases. Policies that renewed quietly last year may have had exclusions added or coverage limits changed.
The mid-year audit question here is not just do I have insurance? It is three questions.
First: is every policy current, with no lapses? An insurance lapse on a rental property can void your mortgage agreement and leave you personally exposed on any claim during the gap.
Second: when does each policy renew, and are you aware of it far enough in advance to shop alternatives if the rate increases significantly?
Third: is your coverage limit still in line with the actual replacement cost of each property? If your property was insured for $180,000 two years ago and rebuild costs have gone up 25%, your coverage may be $45,000 short.
If you are carrying a Section 8 tenant, verify your policy explicitly covers Section 8 rentals. Some standard landlord policies have exclusions that your insurance broker may not have flagged at purchase.
Question 4: How Is Each Property Manager Actually Performing?
Mid-year is the right time to review PM performance, not because anything is necessarily wrong, but because small problems compound if they go unaddressed for another six months.
The five metrics that matter: management fee as a percentage of collected rent (is it still matching your agreement?), average vacancy days per turnover, maintenance cost per property, disbursement accuracy (does what they deposit match what they report?), and rent collection rate.
Most landlords have a gut feel about their PM. What they do not have is data. If your PM maintenance cost per property has increased 40% year over year, is that because your properties are aging, or because they are routing work to a preferred vendor at above-market rates? You cannot know from a gut feeling.
One specific thing to check in May: review every PM statement from January through April and look for any new line items, fee categories, or charges that were not present last year. Management companies sometimes add administrative fees, document fees, or markup categories that do not appear in your agreement. They appear quietly in monthly statements and most landlords never notice because they are not comparing month over month.
Question 5: Where Do Your Equity Positions Stand, and Is a Refinance Opportunity Here?
May and June are historically active refi months. Lenders have capacity, appraisers are scheduling well, and rates in 2026 have been moving. If you have been sitting on a property where equity has built from a combination of paydown and appreciation, it is worth running the numbers now rather than waiting until fall when the refi market slows.
The key number is your current LTV. If you are below 75% LTV on a BRRR deal and you have not pulled your equity out, your capital is trapped doing nothing. A cash-out refinance at 75% LTV on a property with a $180,000 value and a $110,000 balance would put roughly $25,000 back in your hands to deploy into the next deal.
The second number is DSCR post-refi. If a cash-out refi increases your monthly debt service to where your DSCR drops below 1.1, the deal does not pencil. Know that before you call your lender.
Your mid-year audit should include a quick equity sweep across every property: current estimated value, current loan balance, current LTV, and a simple answer to whether there is actionable equity worth moving in the next 60 to 90 days.
Question 6: Is Your Tax Categorization Clean Through April?
Four months of transactions. Are they all categorized? Are repairs properly separated from capital improvements? Are mortgage payments split correctly between principal, interest, tax escrow, and insurance escrow?
If you wait until March of next year to clean this up, you will be doing four months of work in a week. If you clean it in May, you are catching four months and keeping the next eight clean as you go.
The specific thing to look for in May: any mortgage payment that was booked as a single expense rather than split into its components. Interest is deductible on Schedule E. Principal paydown is not. Tax and insurance escrow go on different lines. If your bookkeeping is recording a $1,800 PITI payment as a single $1,800 expense, your Schedule E will be wrong, your NOI will be understated, and your CPA will have to fix it manually next spring.
What Knox Does During Your Mid-Year Audit
If you are a DoorVault user, most of this audit is already done for you.
Property Health Scores run continuously across eight categories per property. Knox surfaces anomalies automatically: a missing rent payment, an expense spike, a lease expiring in 90 days, an insurance policy approaching renewal, a PM fee that does not match historical patterns.
The Portfolio Dashboard shows real-time NOI, cash flow, cash-on-cash return, and occupancy across every property. The Loans Dashboard pulls current LTV, equity position, DSCR calculations, and 5-year paydown projections. The PM Report Card benchmarks your property manager on the five performance metrics described above, updated with every statement Knox processes.
If you are running a mid-year audit manually, you are pulling data from bank statements, PM portals, insurance email threads, and a spreadsheet that may or may not be current. That is a half-day project across 5 properties.
If Knox has been processing your documents and PM emails all year, the audit takes 15 minutes of reviewing what is already in the dashboard.
The point of a mid-year audit is not to do more work. It is to catch the things that will cost you money if you find out about them in December instead of May.
Start free at https://doorvault.app, add your properties, and forward your first PM statement to your Knox inbox. Your portfolio will start talking to you.