Flip Calculator

Model the complete fix-and-flip financial picture — including every holding and transaction cost.

The most common flip mistake: calculating ARV minus purchase minus rehab and calling it profit. Real flip profit accounts for 6-8 more cost categories. Run the full model before you make any offer.

Free to start. No spreadsheets.

Visual Walkthrough

A flip has four distinct cost phases — investors who model only 2 of them consistently get surprised by the other 2:

🏚

BUY

  • Purchase price
  • Inspection fee
  • Closing costs (2–3%)
🔨

REHAB

  • Materials
  • Labor contracts
  • Permits (5–10%)

HOLD

  • Hard money interest
  • Insurance
  • Property taxes
  • Utilities
🏡

SELL

  • Agent comm. (5–6%)
  • Title & escrow (1–2%)
  • Staging ($2–5k)
  • Concessions (1–2%)
Purchase
Buy Price
+
Rehab
Full Scope
+
Hold Costs
Monthly × Months
+
Sell Fees
7–9% of ARV
=
Total Outlay
vs ARV = Profit

Flip ROI Targets

Minimum

12%

Below = re-negotiate

Target

15–20%

Standard goal

Strong

25%+

Excellent deal

The Complete Flip Formula — Every Cost Category

Fix-and-flip profitability requires modeling every cost category. The simplified formula (ARV − purchase − rehab) misses 4-5 additional cost buckets that regularly consume $25,000-$45,000 on a typical deal.

Total Capital Outlay = Purchase + Rehab + Buying Costs + (Monthly Holding × Months) + Selling Costs
Net Flip Profit = ARV − Total Capital Outlay
Flip ROI % = (Net Profit ÷ Total Capital Outlay) × 100
Annualized ROI = ROI % × (12 ÷ Months Held)

Worked Example: Denver, CO — 4/2 SFR

Cost Stack

Purchase price: $195,000

Buying costs (2.5%): $4,875

Rehab budget: $44,000

Hard money (6 mo @ 12%): $11,700

Insurance + taxes (6 mo): $3,600

Staging: $2,800

Selling costs (7.5% of $295k): $22,125

Total: $284,100

Results

ARV: $295,000

Total outlay: $284,100

Net profit: $10,900

ROI: 3.8%

⚠ Verdict: Pass. Negotiate purchase price to $175,000 to reach $30,900 profit (10.8% ROI).

Pro Tip: Run the flip calculator at three purchase prices — asking price, your initial offer, and your MAO. This shows you exactly how much profit each $5,000 in negotiation adds to your bottom line, which dramatically improves your negotiating conviction.

Fix-and-Flip Financial Modeling

What the Flip Calculator Does

Calculates the complete financial lifecycle of a residential fix-and-flip, from initial acquisition through final sale. Models purchase price, rehab cost, monthly holding costs (hard money interest, insurance, taxes, utilities), buying transaction costs, selling commissions and title fees — producing an accurate net profit and ROI figure that matches real-world outcomes.

Why Full Cost Modeling Changes Everything

Investors who calculate only (ARV - purchase - rehab) routinely believe they're making $50,000-$70,000 on deals that actually net $20,000-$35,000 after holding and transaction costs. The 'hidden' $20,000-$30,000 in carrying and transaction costs is real money that disappears without full cost modeling. Run the complete calculator on every deal, not just the easy math.

3 simple steps

Flip Underwriting Sequence

1

Lock In Your Cost Stack

Enter purchase price, buying costs (2-3%), full rehab estimate (with contingency), and your projected hold time. Be conservative — use 7 months if you'd hope for 5.

2

Model Holding Costs by Month

Input your hard money rate and loan amount to calculate monthly interest. Add insurance, taxes, and utilities. These compound monthly — every extra month is real money out of profit.

3

Calculate Net Profit and ROI

Selling costs (7-9% of ARV) are deducted last. Net Profit = ARV minus total cost stack. ROI = net profit divided by total capital deployed. Both numbers must be satisfactory before you sign.

Most investors lose money here — avoid these mistakes:

  • Budgeting 3-4 months holding time when first flips routinely take 6-9 months — each extra month costs $1,500-$3,000 in holding costs.
  • Ignoring hard money origination points (1-3%) and extension fees — these are paid upfront and add substantially to the actual loan cost.
  • Underbudgeting selling costs at 5-6% when the real total (commissions + title + concessions) typically runs 7-9% of sale price.

Example Scenario

Fix & Flip Profit Planner

FLIP PROFIT
Purchase Price$160,000
After Repair Value (ARV)$250,000
Rehab Budget$35,000
Holding Duration6 Months
Buying & Selling Closings (Est.):$19,000
Total Holding Carrying Costs:$4,800
Total Capital Outlay:$218,800
Net Flip Profit
$31,200
Net Flip ROI %
14.3%

Real-World Application

How experienced flippers protect their margin:

  • Budget 7-8 months minimum — not 4. Every unexpected month adds $1,500-$3,000 in unplanned holding costs on a typical deal.
  • Get contractor bids AND sign contracts before closing on the property. Never assume a verbal agreement survives the purchase.
  • Line up a Realtor before closing — know your listing agent, pricing strategy, and expected days-on-market before you buy.
  • Model selling costs at 8% of ARV minimum: 6% commissions + 1% title/escrow + 1% concessions/buyer credits.
  • Calculate your annualized ROI alongside deal ROI. A 6-month flip at 18% ROI beats a 14-month flip at 22% ROI when annualized.
Frequently Asked Questions

Fix and Flip — What Investors Need to Know

Q.What's the difference between gross profit and net profit on a flip?

Gross profit = ARV minus purchase price. It ignores all other costs and is a completely useless number for investment decision-making. Net profit = ARV minus purchase price minus rehab minus all holding costs minus all transaction costs (buying + selling fees). Net profit is the only number that matters. Many 'profitable-looking' flips have strong gross profit but thin or negative net profit once all costs are honestly modeled.

Q.What's the typical timeline from purchase to sale on a flip?

Budget 7-9 months for a mid-level rehab flip as a conservative baseline. The typical breakdown: 2-4 weeks for permits and contractor mobilization, 6-10 weeks of active construction, 2-4 weeks of punch-list and final inspections, 2-4 weeks of professional staging and photography, and 4-8 weeks on the market before closing. Experienced flippers on their 5th+ project can compress to 5-6 months. First-time flippers regularly hit 10-12 months.

Q.How do I calculate the cost of hard money on a flip?

Hard money costs include: (1) Origination points (1-3% of loan amount, paid upfront at closing), (2) Monthly interest (loan balance × annual rate ÷ 12), (3) Extension fees if the project runs long. Example: $140,000 loan at 12% annual rate + 2 origination points. Upfront cost: $2,800. Monthly interest: $1,400. Six-month hold: $2,800 + ($1,400 × 6) = $2,800 + $8,400 = $11,200 total hard money cost.

Q.Should I include staging costs in my flip budget?

Yes — staging is not optional for maximizing ARV. Professional staging on a mid-range flip costs $1,500-$4,000 for the first month and $500-$800/month thereafter. Studies show staged homes sell for 1-5% more and spend 30-40% less time on market. The math: a $8,000 staging investment that boosts your sale price from $270,000 to $280,000 returns $10,000 — a 125% ROI on the staging cost. Budget it from day one.

Q.How do I handle a flip that's taking longer than projected?

Every month over budget adds 1-1.5% of your loan balance in holding costs. On a $150,000 hard money loan at 12%, that's $1,500/month. If you're 3 months over budget, that's $4,500 in unplanned costs. Actions to take immediately: (1) assess whether completing the flip is still profitable vs. selling as-is, (2) contact your hard money lender early about extensions — they're easier to negotiate before maturity, (3) add any 'almost done' rooms to the listing while final work continues to reduce days on market.

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