Folks, I want to walk you through the exact math I run on a property before I'll let myself get excited about it. Not theory — the actual five steps, with real numbers from the kind of deals I look at here in central Illinois, so you can sit down at your kitchen table tonight and run them on a property you've been eyeing.
Here's why this matters to me. I taught high-school English for ten years before I ever got into real estate, and one of the first students I ever mentored did almost everything wrong on his first flip. He looked at the asking price, looked at what he thought the place was worth, felt good about the gap, and bought it. The roof he assumed had five years left had zero. That lesson cost him about $14,000, and it's the reason I now tell every new investor the same thing: the numbers are sacred. People lie about numbers all the time. The numbers themselves don't lie.
Why most folks freeze on their first deal
Here's what I see all the time. Somebody finds a property that looks promising, gets excited, and then just freezes. They don't know if the numbers work, and worse, they don't even know which numbers they're supposed to look at. So they pass on a deal that could've been a good one, or they jump in without doing the math and learn the hard way that they overpaid.
Deal analysis is the skill that separates the folks who build something real from the folks who just talk about it at the meetup. Most beginner resources skip right over it, or make it sound like you need a finance degree. You don't. You need five steps and the discipline to run all five on every property, even when you're tired and the place looks like an obvious yes.
Two mistakes I want you to stop making. The first is judging a deal on price alone — the asking price tells you what the seller wants, not whether the deal works. The second is running only two numbers, purchase price and repairs, and calling it analysis. A house that looks cheap can wreck your margin if it sits and holding costs run long, and a house that looks expensive can be a home run if your numbers are tight and your exit is clean. Run the whole picture, every time.
If you're still wondering whether you can even afford to start, back up first and read how much money you actually need to invest in real estate — the analysis below assumes you already know roughly what you can bring to the table.
The five steps I run on every deal
I use the same five-step process on every property, whether it's a quick five-minute pass or an hour on a complicated one. The steps don't change. Patterns for success come from consistency, not shortcuts.
I'll carry one property through all five steps: a three-bed, one-bath, 1,200-square-foot frame house in a working-class neighborhood here in central Illinois — the kind of place that comes up all the time in towns like Decatur, Springfield, and Bloomington.
Step 1: Establish the ARV (After-Repair Value)
ARV is what the property is worth once it's fully renovated and ready to sell. This is your ceiling, and every other number flows down from it, so if you get this wrong the whole analysis is wrong.
Here's exactly what I do. I pull three to five comparable sales — comps — from the last 90 days, within a half-mile radius. Same property type, similar square footage, similar condition once mine is fixed up. I'm not looking at active listings, because a listing is just somebody's asking price, and asking prices are wishes. I look at what buyers actually closed on.
On our example house, I find three recent sold comps, all fully updated three-beds in the same school district: $185,000, $192,000, and $188,000. So my ARV lands around $188,000 to $192,000. I use the conservative end and call it $185,000. I'd rather be pleasantly surprised on the back end than build the whole deal on the optimistic number.
One more thing. If you genuinely can't find comps, that's information too. Sparse sales mean an uncertain exit, and an uncertain exit means you raise your margin or you walk. In a thin rural market here you'll hit that more than you would in a Chicago suburb, and the answer is to be more conservative, not to fudge the comp.
Step 2: Estimate repair costs honestly
This is where that student of mine got hurt, and it's where most beginners get hurt. Somebody walks a property, sees it needs a kitchen and a bath, jots down "$20,000 in repairs," and moves on. Then the roof turns out shot, the wiring is knob-and-tube, there's moisture in the crawlspace, and the real number was $55,000.
Here's what I do instead. I walk every system in the house in the same order, every time: roof, HVAC, plumbing, electrical, foundation, then the cosmetic stuff room by room. I put a dollar figure on each category. When I'm not sure, I bring in a contractor. I'm the cheapest guy you'll ever meet, and even I will gladly spend $150 on an inspection to avoid a $15,000 surprise.
On our central-Illinois house, I scope it like this: roof $8,000, furnace and central air $6,500, updated 100-amp service $2,500, kitchen $7,500, bath $3,500, flooring and paint throughout $2,500. That's about $30,500, and I add a 15% buffer on top because something always comes up once the walls are open. That brings it to roughly $35,000 of honest repairs on this deal. Use a line-item estimator, never a gut feeling.
Step 3: Calculate holding costs
This is the step folks forget, and the one that quietly eats deals alive. Holding costs are everything you pay while you own the property but before you've sold it, and they pile up faster than people expect.
Here's what falls in the bucket. Financing — if you're using hard money or a private loan you're paying interest every month, and on a $120,000 loan at 12% that's $1,200 a month. Property taxes, prorated by the month, and I'll tell you, Illinois has some of the higher effective property-tax rates in the country, so this line is heavier here than it would be down south. Don't skip it. Vacant-property insurance, usually $100 to $200 a month. And utilities, especially if you're keeping the heat on through an Illinois winter so your contractors aren't working in a meat locker and your pipes don't freeze.
Then the discipline part. Estimate your rehab timeline honestly and add 30%. Projects run long. If you think it's a three-month rehab, budget four months of holding costs. On our example, four months runs about $6,000 all-in.
Step 4: Add up all the closing costs — both ends
You have closing costs twice, once when you buy and once when you sell. Most beginners only think about the buy side, if they think about closing costs at all.
On the buy side, plan for 2 to 3% of the purchase price: title work, recording fees, attorney fees — and in Illinois a closing typically runs through an attorney, so budget for that — plus any lender fees. On the sell side, budget 6 to 8%: agent commissions, the closing costs you agree to cover for your buyer, staging, final touch-ups, and transfer taxes. On a $185,000 sale your selling costs alone can run $11,000 to $14,800. That's real money, and leaving it out doesn't make it disappear. I'll put the combined buy-and-sell number at $15,000 for our deal.
Step 5: Set your profit target and work backward
Now you've got every piece. The whole point of the first four steps was to fill in this one equation:
Max Offer = ARV − Repairs − Holding Costs − Closing Costs (buy + sell) − Profit Target
Let's run our central-Illinois house all the way through:
- ARV: $185,000
- Repairs: $35,000
- Holding costs, four months: $6,000
- Closing costs, buy and sell: $15,000
- Profit target: $25,000
Max Offer = $185,000 − $35,000 − $6,000 − $15,000 − $25,000 = $104,000
That's your ceiling. If you can get this house for $104,000 or less, it works on paper. If the seller is firm at $130,000, you have your answer, and the answer is no. Not "no, you failed." Just no on these numbers today. No for now is not no forever — that seller may call you back in March when the place still hasn't moved.
This is how you stop making emotional decisions about property. We don't buy houses, we solve problems, and you can't solve a seller's problem at a price that creates a worse one for you. The math tells you the answer. Your only job is to run it correctly.
A word on practice, and on patience
The first time you run all five steps it'll feel slow and clumsy. Do it ten times and it feels natural. Do it twenty times and you'll start seeing the patterns — the neighborhoods where repairs always run heavier, the seller price points that rarely pencil out, the property types where the comps are thin. The investors who close deals aren't geniuses. I'm just an old grumpy grandpa-looking guy who ran the numbers on a lot of deals before I found the ones that worked.
So here's what I'd do this week. Pick one property — a listing you've been sitting on, a courthouse lead, anything real — and run all five steps. Pull real comps, scope the repairs line by line, add holding costs for an honest timeline, add both ends of closing, set a $20,000 to $25,000 profit target. Then compare your max offer to the asking price and see whether there's a deal hiding in there. Even if there isn't, you practiced the discipline on a real property, and that's the whole game.
If you're earlier than that and still piecing together how this business fits together, start with how to become a real estate investor, and if you're worried you don't have the capital, read whether you can invest in real estate with no money of your own. Get the foundation right, then come back and run these five steps. Real estate investors solve challenges, and this is the first one you learn to solve.
Chris Albin and CRARE Instruction do not guarantee any level of money, success, or lifestyle from learning any of the strategies discussed here. The information in this post is of a general nature and is not intended to replace specific advice you may receive from a licensed professional for legal, financial, or business decisions. Individual results will vary depending on several factors, including your starting point, your effort, and your resources. All information is believed to be true and accurate, and is subject to change without notice.
