Real Estate Tax Calc
How BRRRR changes the denominator
BRRRR (Buy, Rehab, Rent, Refinance, Repeat) aims to pull most or all of invested capital back out in the refinance. If you buy a distressed property for $80,000, spend $40,000 on rehab, then refinance at 75% loan-to-value on a $180,000 ARV and receive $135,000, you may recover most or all of your $120,000 invested. The remaining cash in the deal can be tiny — making cash-on-cash very high or mathematically undefined.
What the metric misses
A near-zero denominator produces a spectacular-looking return, but it doesn't mean zero risk. You've replaced equity with debt: the refinanced loan carries a higher payment that must be serviced through vacancy, repairs, and market cycles. The property's ability to generate positive cash flow after the new loan payment is what actually matters.
Better metrics after a BRRRR refi
Focus on absolute monthly cash flow after the refi payment, debt service coverage ratio (DSCR = NOI ÷ annual debt service; aim for 1.2 or higher), and equity cushion above the loan balance. Cash-on-cash return becomes meaningful again once you've owned the refi'd property long enough to normalize expenses.
A full worked BRRRR example
Walk the numbers end to end. You buy a distressed single-family for $110,000 cash (hard-money or your own funds), spend $45,000 on rehab, and pay roughly $8,000 in carrying, closing, and holding costs during the project. Total in: $163,000. After the work, the property appraises at an after-repair value (ARV) of $225,000 and rents for $2,000/month. You refinance at 75% LTV, producing a new loan of $168,750. After paying off any short-term financing and refi closing costs (say $6,000), you pull out roughly $162,750 — leaving only about $250 of your own cash in the deal. If annual pre-tax cash flow after the new payment is $2,400, the cash-on-cash figure ($2,400 ÷ $250) reads as an absurd 960% — a number so large it stops being useful, which is exactly the point.
When you leave cash trapped
Not every BRRRR pulls out all the capital. If the ARV comes in low or rehab runs over budget, the 75% refinance may return less than you put in. Suppose the same deal appraises at only $195,000; a 75% loan is $146,250, and after paying off financing you recover far less, leaving perhaps $25,000 stuck in the property. Now cash-on-cash ($2,400 ÷ $25,000 = 9.6%) is a real, comparable number again. Trapped equity isn't necessarily bad — it lowers your leverage and monthly payment — but it does mean the 'Repeat' step is delayed until you can free that capital another way.
Tax treatment of the rehab and refinance
The BRRRR structure has specific tax consequences. Rehab spending that improves the property — a betterment, restoration, or adaptation under the tangible property regulations — is capitalized and depreciated, not deducted immediately. A gut renovation of a distressed house is almost always a capital improvement added to basis and depreciated over 27.5 years (residential) via MACRS. The cash you pull out in the refinance is not taxable income — loan proceeds are never income, because you have to pay them back. However, interest on the refinanced loan is deductible only to the extent the borrowed funds are used for the rental activity under the interest tracing rules; cash pulled out and spent on personal items loses its deductible character.
The risks a high cash-on-cash hides
A near-zero denominator flatters the metric while concealing three real risks. First, leverage risk: at 75% LTV with little equity, a market dip can leave you underwater, and a period of vacancy has no equity cushion to fall back on. Second, refinance risk: appraisals, lending standards, and interest rates can all move against you between purchase and refi, shrinking the cash you recover. Third, thin-margin risk: because you optimized to extract capital, the property may barely cover its higher payment. Always pressure-test the deal at a lower ARV, a higher rate, and two months of vacancy before celebrating the headline return.
How to judge a BRRRR beyond cash-on-cash
Because cash-on-cash breaks down when the denominator nears zero, lean on a small dashboard of metrics instead. Track total cash left in the deal (the true measure of capital efficiency), monthly cash flow in dollars after the refi payment and reserves, DSCR (target 1.2+), the equity position (ARV minus loan balance — your safety margin), and return on equity over time as the property appreciates and amortizes. Together these tell you whether a BRRRR is genuinely strong or merely mathematically dramatic.
Seasoning and the refinance timeline
The 'Refinance' step is not automatic. Most lenders impose a seasoning period — a minimum time you must own the property before they will lend against the new, higher appraised value rather than your purchase price. Conventional lenders often require six to twelve months of ownership for a cash-out refinance at appraised value; some portfolio and DSCR lenders offer shorter or 'delayed financing' options. Seasoning matters to your returns because every month between purchase and refinance is a month you carry the property on expensive short-term money (hard-money or a HELOC) while collecting little or no stabilized rent during rehab. Build those carrying costs into your total-cash-invested figure, and do not assume you will recover your capital on day one — model the realistic timeline, because a delayed refinance leaves more cash trapped for longer and depresses the annualized return your headline cash-on-cash number never shows.
DSCR and appraisal risk in plain numbers
Two external judgments control how much cash you actually recover: the appraiser's value and the lender's DSCR requirement. On value, if you underwrote a $225,000 ARV but the appraisal lands at $205,000, a 75% loan drops from $168,750 to $153,750 — $15,000 less cash out, straight off your recovered capital. On DSCR, many investor lenders will not simply lend 75% of value; they also cap the loan so that net operating income covers the payment by a minimum ratio (commonly 1.20–1.25). If the rent is soft, the DSCR test — not the LTV test — sets your loan amount, and you get less cash out than the LTV alone implies. Prudent BRRRR underwriting runs both constraints and takes the lower loan, then stress-tests a 10% lower appraisal and a half-point higher rate before committing.
Reserves: the discipline a high return can erode
The riskiest moment in a BRRRR is right after the refinance, when your cash-on-cash looks spectacular precisely because you pulled nearly all your capital back out — leaving little cushion. A newly refinanced property carries a larger loan and therefore a larger monthly payment, so a single major repair or a two-month vacancy can turn a 'great' deal cash-flow negative. Before you celebrate the recycled capital and roll it into the next purchase, carve out a genuine reserve: many investors hold three to six months of the new payment plus a capital-expenditure fund sized to the property's age and condition. Treat reserves as part of the cost of the strategy, not an optional extra. A BRRRR that reports an infinite return but has no cash set aside is not a low-risk deal — it is a highly leveraged one with the safety margin removed.
Why 'return on equity' eventually matters more
Even a perfectly executed BRRRR that recovers all your cash does not stay a zero-denominator deal forever. As the property appreciates and the loan amortizes, equity rebuilds inside it — and that trapped equity has an opportunity cost. This is where return on equity (ROE) takes over from cash-on-cash as the metric that guides decisions. ROE divides your annual return (cash flow plus principal paydown, sometimes plus appreciation) by your current equity, not your original cash. A property that once returned an 'infinite' cash-on-cash can quietly slip to a mediocre ROE a few years later as equity accumulates, signaling it may be time to refinance again, do a cash-out to redeploy capital, or exchange into a larger asset. The BRRRR model is built on recycling capital, so tracking ROE keeps you honest about whether each property is still working your money hard — long after the headline cash-on-cash number has stopped being meaningful.
Frequently asked questions
Can cash-on-cash return be infinite on a BRRRR?
Mathematically yes, if all your cash is recovered. But that doesn't eliminate risk — you've swapped equity for higher leverage and need the property to cover the new loan.
Is a higher cash-on-cash always better on BRRRR?
Not necessarily — very high cash-on-cash after a refi can mask thin margins and high leverage risk.
Is the cash I pull out in the refinance taxable?
No. Refinance proceeds are loan money you must repay, so they are not taxable income — even when you pull out more than you originally invested. You do not report a cash-out refinance as income, though the deductibility of the new loan's interest depends on how you use the funds under the interest tracing rules.
Can I deduct my rehab costs right away on a BRRRR?
Usually no. A substantial rehab of a distressed property is a capital improvement — it is added to basis and depreciated over 27.5 years rather than expensed. Only genuine repairs that merely maintain the property (and were not part of a larger renovation plan) may be currently deductible.
What if my BRRRR leaves money trapped in the deal?
Then cash-on-cash becomes a normal, comparable number again — divide your annual cash flow by the capital still in the property. Trapped equity lowers your leverage and payment, so it is not automatically bad; it just delays recycling that capital into the next deal.
How long before I can refinance a BRRRR at the new value?
It depends on the lender's seasoning requirement. Many conventional cash-out refinances require six to twelve months of ownership before they will lend against the appraised (after-repair) value rather than your purchase price, though some portfolio and DSCR lenders offer shorter windows. Confirm the seasoning rule before you buy, because a longer wait means more months carrying expensive short-term financing and more of your capital left trapped.
Educational information and estimates only. Not tax advice. Tax rules change and vary by situation; consult a qualified tax professional before acting.