How do you track rehab costs on a BRRR deal?

Track BRRR rehab costs by creating a line-item budget before closing, logging every payment with receipt photos and lien waivers, and comparing budget vs actual weekly. Break the budget into major categories (kitchen, bath, flooring, HVAC, electrical, plumbing, paint, roof) and add a 10% to 15% contingency. Review actual spend against each line item every Friday so you catch overruns before they compound.

How much contingency should I budget for a rehab?

Budget 10% to 15% of total rehab cost as contingency. For a $40,000 rehab, that means $4,000 to $6,000 set aside for surprises. First-time rehabbers should use 15% because they are more likely to encounter unexpected issues like knob-and-tube wiring, water damage behind walls, or code violations discovered during permit inspections.

What documents should I collect from contractors?

For every contractor payment, collect five documents: a detailed invoice with line items, a signed lien waiver (partial for progress payments, final for last payment), before and after photos of completed work, a W-9 form for tax reporting, and proof of insurance. These protect you from mechanics liens, support your cost basis for taxes, and provide documentation if you need to file a claim.

Which rehab improvements have the highest ROI?

Interior paint has the highest ROI at 200% or more, costing $1,000 to $3,000 and dramatically changing the feel of a property. Kitchen updates return 80% to 120%, bathrooms return 70% to 100%, and flooring returns 75% to 110%. HVAC replacement returns only 50% to 70% and roof replacement returns 30% to 50%, but both are often necessary to pass inspection and secure financing.

How do rehab cost overruns affect a BRRR deal?

Every $1,000 over budget is $1,000 more capital trapped in the deal after refinancing. If you budgeted $35,000 for rehab and spend $50,000, that extra $15,000 reduces your capital velocity from 91% to 59%. Instead of recycling nearly all your cash into the next deal, you leave a large chunk locked in one property. Cost overruns also extend timelines, adding holding costs of $1,500 to $3,000 per month on hard money loans.

How to Track Rehab Costs for a BRRR Deal

Track BRRR rehab costs by creating a line-item budget before closing, logging every payment with receipt photos and lien waivers, and comparing budget vs actual weekly. The gap between estimated and actual rehab costs is the single biggest deal killer in BRRR investing, with the average first-time rehabber going 20% to 35% over budget.

Pre-close budget template

Your rehab budget should be locked before you close on the property. Walk the property with a contractor or experienced investor and price every category individually. Getting "one number" from a GC without line items is how budgets blow up. You need to know what each piece costs so you can make trade-offs when surprises appear.

Category	Typical Range	Notes
Kitchen	$5,000 to $15,000	Cabinets, countertops, appliances, backsplash. Refacing cabinets saves 40% to 60% vs replacement.
Bathroom	$3,000 to $8,000	Vanity, tile, fixtures, tub/shower. Per bathroom. Budget more for full gut vs cosmetic refresh.
Flooring	$2,000 to $6,000	LVP throughout is the BRRR standard. Durable, tenant-proof, $2 to $4/sqft installed.
HVAC	$4,000 to $8,000	Full replacement if system is 15+ years old. Service and repair if under 10 years.
Electrical	$1,000 to $4,000	Panel upgrade, GFCI outlets, code compliance. Full rewire can reach $8,000 to $12,000.
Plumbing	$1,000 to $5,000	Fixture replacement, water heater, supply lines. Cast iron drain replacement adds $3,000 to $7,000.
Paint (interior + exterior)	$1,000 to $3,000	Highest ROI item. Neutral colors throughout. Exterior paint adds $2,000 to $5,000 if needed.
Roof	$5,000 to $12,000	Required for appraisal and insurance. Patch if under 10 years old, replace if over 15.
Contingency (10% to 15%)	$3,000 to $9,000	Non-negotiable. First-time rehabbers use 15%. Experienced investors use 10%.

Get multiple bids

Never price a rehab from a single contractor bid. Get at least two bids per major trade (plumbing, electrical, HVAC) and three bids for the general scope. The spread between high and low bids is typically 30% to 50%, and neither extreme is usually the right choice. The middle bid from a contractor with references and a portfolio of similar work is your best baseline.

Budget vs actual tracking: weekly comparisons

A budget that sits in a spreadsheet and never gets compared to reality is not a budget. It is a wish list. The discipline of BRRR rehab cost tracking comes from a weekly rhythm: every Friday, compare what you have spent in each category against what you budgeted.

The weekly review process

Update actual spend per category. Every receipt, invoice, and payment gets logged to the correct budget line. No "miscellaneous" buckets larger than $500.
Calculate remaining budget per category. If your kitchen budget is $10,000 and you have spent $7,200 with countertops and appliances still pending, you know those items must come in under $2,800 or the category is over.
Flag any category over 80% spent before 80% complete. This is your early warning. If flooring is 90% spent but only half the house is done, you are heading for a blowout.
Review contingency balance. Contingency should only decrease for genuine surprises (hidden water damage, code violations), not for scope additions or upgraded finishes.

When to pull the alarm

If your total actual spend exceeds 50% of budget before the project is 40% complete, stop all non-essential work immediately. Reassess the scope of every remaining item. At this pace, you are on track to go 25% to 40% over budget, which will destroy your capital velocity and potentially turn a profitable BRRR into a money trap.

Scope creep prevention

Scope creep is the slow, quiet expansion of work beyond the original plan. It rarely arrives as one big decision. It arrives as a series of small ones: "While we have the wall open, we should also..." and "For just $800 more, we could upgrade to..." Those small additions compound into thousands of dollars and weeks of delay.

Fixed-price contracts

Use fixed-price contracts for every trade, not time-and-materials. A plumber who quotes $3,200 to replumb the house absorbs the risk of it taking longer than expected. A plumber billing $85/hour has no incentive to work efficiently. Fixed-price contracts are the single most effective tool against budget overruns.

Change order process

Every addition or modification to the original scope requires a written change order before work begins. The change order must include the cost of the additional work, the impact on the timeline, and your signature approving it. No verbal agreements. No "we will figure out the price later." If the contractor starts unapproved work, you are not obligated to pay for it.

Draw schedules

Structure contractor payments around completed milestones, not calendar dates. A proven draw schedule for a full rehab:

10% at contract signing to cover material deposits
25% at demolition and rough-in complete (framing, rough plumbing, rough electrical done and inspected)
25% at finish work midpoint (drywall, paint, flooring in progress)
25% at substantial completion (all work done, ready for final walkthrough)
15% at final walkthrough with punch list cleared (every item on the list resolved before the last check)

The 15% hold-back

That final 15% is your strongest negotiating tool. Contractors who have been paid in full have very little motivation to come back and fix punch list items. Holding 15% until every item is resolved ensures the work gets finished to your standard, not theirs.

How rehab costs affect BRRR velocity

In a BRRR deal, every dollar of rehab cost is a dollar of capital you need to recover through the refinance. The math is unforgiving: every $1,000 over budget is $1,000 more capital trapped in the deal after refinancing.

Consider a property purchased for $95,000 with an ARV of $175,000. At 75% LTV, the refinance loan is $131,250. Here is what happens to capital velocity as rehab costs increase:

Rehab Cost	Total Invested	Capital Recovered	Capital Trapped	Velocity
$30,000	$42,000	$42,000	$0	100%
$35,000	$47,000	$42,750	$4,250	91%
$45,000	$57,000	$42,750	$14,250	75%
$50,000	$62,000	$42,750	$19,250	69%
$60,000	$72,000	$42,750	$29,250	59%

A $15,000 overrun (from $35K to $50K) drops velocity from 91% to 69%. That means $19,250 of your capital is locked in this property instead of funding the next acquisition. At the portfolio level, this is the difference between buying three properties per year and buying one.

Contractor payment documentation

Every payment to a contractor or vendor should be accompanied by five documents. Missing any of these creates risk: tax basis problems, mechanics lien exposure, or unverifiable costs that an appraiser or lender may question.

Detailed invoice with line items

Not a handwritten note that says "Plumbing: $3,200." A proper invoice lists the work performed, materials used with quantities, labor hours or fixed price, the property address, and the contractor's business name and license number.

Signed lien waiver

A partial lien waiver for progress payments, a final lien waiver for the last payment. This document confirms the contractor has been paid and waives their right to file a mechanics lien against your property. Without it, a subcontractor who was not paid by your GC can put a lien on your property even though you paid the GC in full.

Before and after photos

Photograph every area before work begins and after completion. These serve three purposes: verifying work was actually completed before releasing a draw payment, supporting your cost basis if the IRS questions your rehab deductions, and providing evidence for insurance claims if work is later found defective.

W-9 form

Collect a W-9 from every contractor you pay $600 or more in a calendar year. You are required to issue a 1099-NEC to these contractors. Failing to collect the W-9 before making payment gives the contractor no incentive to provide it later.

Proof of contractor insurance

Verify general liability and workers compensation coverage before work starts. If an uninsured worker is injured on your property, you may be liable. Request a certificate of insurance naming you as an additional insured for the duration of the project.

ARV impact analysis: which improvements add value

Not all rehab dollars are created equal. Some improvements increase the appraised value by more than they cost. Others are necessary for habitability but add little to the appraisal. Understanding the difference is how you maximize the spread between total investment and ARV.

Improvement	Typical Cost	Estimated ROI	Priority
Interior paint	$1,000 to $3,000	200%+	Always do first
Flooring (LVP)	$2,000 to $6,000	75% to 110%	High visual impact for appraisal photos
Kitchen update	$5,000 to $15,000	80% to 120%	Biggest value driver after paint
Bathroom remodel	$3,000 to $8,000	70% to 100%	Focus on tile, vanity, and fixtures
Curb appeal (landscaping, exterior)	$1,000 to $4,000	100% to 150%	First impression for appraiser and tenants
HVAC replacement	$4,000 to $8,000	50% to 70%	Necessary but low appraisal bump
Roof replacement	$5,000 to $12,000	30% to 50%	Required for financing, not a value-add
Electrical panel upgrade	$1,500 to $3,000	20% to 40%	Safety/code requirement, minimal appraisal impact

The appraisal math

Appraisers use comparable sales, not your renovation receipts. A $15,000 kitchen does not automatically add $15,000 to your appraised value. It adds value only to the extent that comparable properties with updated kitchens sell for more than those without. In a neighborhood where renovated comps sell for $175,000 and unrenovated sell for $130,000, the total rehab delta is $45,000 regardless of whether you spend $30,000 or $50,000 on the work.

Timeline tracking: how delays compound costs

Rehab timelines matter because holding costs are relentless. While a property sits mid-renovation, you are paying hard money interest, insurance, property taxes, and utilities every single month. These costs are invisible in the rehab budget if you are only tracking contractor payments, but they erode your deal returns just as effectively.

Holding Cost	Monthly Amount	Notes
Hard money interest (12% on $85,500)	$855	Interest-only payments during rehab
Property taxes	$200 to $400	Varies by market, due whether occupied or not
Insurance (builder's risk)	$150 to $300	Vacant/renovation policy, higher than standard landlord
Utilities	$150 to $250	Electric, water, gas needed for contractors to work
Total monthly holding cost	$1,355 to $1,805

A rehab that was budgeted for 8 weeks but takes 14 weeks adds 6 extra weeks of holding costs: roughly $2,000 to $2,700 in additional expense that was never in the original budget. On a $35,000 rehab, that is a 6% to 8% overrun from timeline delays alone, before any scope changes or material cost increases.

The compounding effect

Delays rarely just cost holding expenses. A 6-week delay pushes your refinance 6 weeks later, which pushes your capital recovery 6 weeks later, which delays your next acquisition by at least 6 weeks. Over a 5-year investing horizon, one delayed rehab per year can mean two or three fewer properties in your portfolio.

Common mistakes that blow rehab budgets

Paying contractors too much upfront. Never pay more than 10% before work begins. Contractors who demand 50% upfront are either undercapitalized (they need your money to buy materials for someone else's job) or a flight risk. If they cannot fund materials with a 10% deposit, that is a red flag about their financial stability.

No contingency budget. Every rehab uncovers something unexpected. Water damage behind the shower tile. Knob-and-tube wiring in the attic. A foundation crack hidden by drywall. Without a 10% to 15% contingency, each surprise forces you to either cut scope elsewhere (reducing ARV) or go over budget (reducing velocity).

Skipping the pre-purchase inspection. A $400 inspection before closing can reveal $10,000 to $20,000 in hidden issues that change your rehab budget entirely. Foundation problems, termite damage, roof structure issues, and buried oil tanks are all items that a walkthrough with a contractor will miss but an inspector will catch.

Not getting multiple bids. A single bid gives you no frame of reference. You do not know if the quote is fair, inflated, or suspiciously low (a sign the contractor does not understand the scope). Three bids for the general scope and two per trade gives you a realistic cost range and negotiating position.

Upgrading finishes beyond the neighborhood. Quartz countertops and custom tile in a C-class rental neighborhood do not increase appraised value. The appraisal is based on comparable sales, and comps in that neighborhood have laminate counters and builder-grade fixtures. Over-improving a property means spending $15,000 on a kitchen that adds $8,000 in value.

Treating the rehab budget as "approximately right." Vague budgets produce vague results. "About $35K for the rehab" is not a budget. A budget has line items, specific dollar amounts per category, and a contingency. If you cannot list where every dollar is going before you close, you are guessing, and guessing is how first-time rehabbers end up 30% over.

How DoorVault tracks BRRR rehab costs

DoorVault connects rehab cost tracking to the rest of your BRRR deal so you always see how spending decisions affect capital velocity and deal returns.

Upload contractor invoices and receipts. Knox AI reads them, categorizes each line item to the correct budget category, and flags when a category is approaching its limit.

Budget vs actual dashboard per property. See remaining budget by category, percentage complete, and projected final cost based on current burn rate.

Capital velocity recalculates in real time as rehab costs come in. Every invoice updates your all-in cost, projected refinance proceeds, and capital recovery percentage.

Holding cost tracking runs automatically from purchase date. You always know the true cost of delays, not just the contractor costs.

ARV monitoring with comp data. Know your all-in to ARV ratio as it changes with every dollar spent, so you can make informed scope decisions before overruns happen.