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Articles by Aaron Weikle
Electing out of the §163(j) interest limit — what it does to cost seg math
Forum Categories All Real Estate Investor · Austin, TX · Member since 2017 · 93 posts · 21 votes Member since 2026 · 77 posts · 23 votes 23m Ran this exact comparison on a 32 unit deal last year, so the numbers are fresh. The break even depends almost entirely on your marginal rate, how much 5, 7, or 15 year property the cost segregation identifies, and what your interest expense actually looks like relative to ATI.
Sold a Property This Summer? Don’t Wait Until April to Think About the Tax
I’ve been having this conversation more lately. An investor sells a property, rental income jumps, or they have a strong year... but they’re still making the same estimated tax payment they calculated months ago. That’s where surprises start. The September 15 estimated-tax deadline is coming, and if your income changed significantly this summer, now is a good time to run the numbers again. I tell investors this all the time: Tax planning is not something you do once a year. A profitable sale is great.
Anyone actually solved the multi-unit tracking chaos?
Forum Categories All Member since 2026 · 45 posts · 14 votes Talked to a landlord a while back who described managing five units as a full time archaeology job. Digging through old texts and spreadsheets just to figure out what happened with a tenant three months ago. That stuck with me. Most people don't lose money on rent. They lose it on the stuff that falls through the cracks because nothing's actually tracked in one place. I build systems for exactly this.
Automated bookkeeping for rental portfolios
I've been on BP about a year. Software engineer, investor, and I self-manage my own units. Disclosing up front: I built the tool below. Why it exists: managing my own places, my books lived in spreadsheets, QuickBooks was never designed for rentals, and every March was a scramble for receipts. So I built what I wanted. What Revenli does: • You get a dedicated email address to hand to vendors. Invoices they send get read, filed, and matched to the right property automatically — you upload nothing.
Just Gauging Interest: Anyone else heading to BPCON in Orlando?
Aaron Weikle Member since May 22, 2026 Posts 53 Votes 13 Investments 11 53 Posts 13 Votes Aaron Weikle Member since May 22, 2026 Posts 53 Votes 13 Investments 11 Aaron WeiklePoster 13 Votes | 53 Posts Curious who else is planning to attend.Would love to connect in person. Happy to grab a coffee or to just say hi if you're around.
You find better financial outlooks with RealBooks
Aaron, thanks for sharing this. RealBooks looks like you’ve put a lot of thought into solving some very real accounting and tax challenges for real estate investors, and I like the focus on helping investors better understand their financial performance. I do want to clarify one thing for anyone comparing RealBooks and RentRedi, though. They’re not really apples-to-apples platforms.
This one can add up if you miss it!!
Does your lender charge interest on the drawn balance or the full loan amount? On a $191K Henry County flip, $136K funds at close and the $55K rehab comes in draws. If you're paying on drawn funds, month one is about $1,190. If your lender charges Dutch interest, you're paying $1,671 from day one on money still sitting with them. Over nine months that's about $2,500. Nobody quotes it, it's in the term sheet, and it never comes up until you're comparing statements. Taxes are the other one people miss.
Can one short-term rental really create $400K in tax benefits?
I want to share something that doesn't get talked about enough, because when I first heard it I didn't believe it either.
Inspired by some of the "lessons it took me years to learn" threads floating around today, I am curious specifically about the financial and bookkeeping side of things, because I think that's where some of the most expensive mistakes happen quietly. Mine was treating my portfolio like one business instead of several.
At what number of properties did your bookkeeping system completely break down?
Genuine question for people who've been doing this for a while. Most investors start with something simple like a spreadsheet or a basic QuickBooks setup and it works fine for the first one or two properties. At some point though, it doesn't work anymore. Not dramatically but it just quietly starts failing. Transactions get harder to categorize, and you're not sure which property an expense belongs to.
What do your books look like before you walk into a financing conversation?
There's a lot of discussion about deal analysis, LTV, DSCR, and what lenders want to see in terms of the property numbers. What I don't see discussed is the state of your actual books when you show up and how much that affects the outcome. I've seen investors with solid deals lose time or terms because the financials they handed over were disorganized. The property wasn't bad but the income and expense history was shown as a blended portfolio number.
Cost segregation is only half the equation...can you really use the losses?
There's a lot of discussion on here about whether cost segregation is worth it and what kinds of properties qualify. What I don't see talked about nearly as much is what happens after, like whether you can actually deploy those losses or whether they just sit in a carry-forward indefinitely. The IRS classifies most rental activity as passive, which means a $200,000 depreciation loss from a cost seg study can only offset passive income unless you qualify for certain exceptions.
What financial numbers do you seriously review per property and how often?
There's been a lot of good discussion lately about which accounting software to use for a real estate and most of it lands on the same generic answer. What I don't see talked about as much is what comes AFTER the setup though. What numbers are investors pulling out of their books on a regular basis and how frequently? I'm talking about per property, not just the the total portfolio view. Specifically: are you looking at a P&L per property quarterly, yearly, or just at tax time?
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