Holding costs are everything you pay each month between closing on a flip and selling it, and on a typical financed project they run well into four figures a month once you count interest, taxes, insurance, and utilities. That number matters more than almost any other line in your deal analysis, because it is the one that grows when anything slips. A point on the loan is paid once. A month of carry is paid again every time the rehab runs long, the inspector reschedules, or the buyer's lender drags. This article breaks the monthly carry into its parts, shows the math on a realistic example, and explains how experienced flippers budget for it so a slow month does not eat the profit.
The five lines that make up monthly carry
- Interest. On a hard money rehab loan you pay interest only, monthly, on the drawn balance. This is the largest line for most projects and the one you control least once the loan is signed.
- Property taxes. Accruing every day you own the property, whether or not anyone is swinging a hammer. Prorated at purchase and again at resale.
- Insurance. A vacant renovation project needs a builder's risk or vacant dwelling policy, not a standard homeowner policy. Priced for the risk, and it costs more than most first-time flippers expect.
- Utilities. Power for tools and lights, water for crews, gas in winter so pipes and new drywall are protected. Small individually, never zero.
- Everything else. Lawn care so the neighbors and the appraiser see a maintained property, a lockbox or camera, HOA dues where they apply, and the dumpster sitting in the driveway longer than planned.
The interest math, worked
Take a project with a $200,000 total loan. At an 11 percent rate, which sits inside our published 9.9 to 11.9 percent range for rehab loans, full-balance carry is about $1,833 a month in interest alone. Now the good news, which many investors miss when estimating: with a draw structure you are not paying interest on the whole commitment from day one. If $120,000 funds the purchase at closing and the remaining $80,000 of rehab money is released in draws as work completes, your early months accrue interest on the smaller drawn balance, and the cost steps up as draws fund. Rough shape of that project: month one around $1,100, climbing toward the full $1,833 as the budget deploys. Model it month by month rather than multiplying the full payment by the term, and your carry estimate gets meaningfully more accurate in both directions.
Rates move, so treat the arithmetic as the lesson here and check current terms on the product page before you run your own numbers.
What a full month of carry looks like
Stack the other lines on top of interest for that same mid-sized Middle Tennessee project. Taxes on a modest house might accrue a few hundred a month. Builder's risk insurance often runs in the low hundreds monthly depending on coverage and location. Utilities and upkeep add a bit more. The exact figures depend on your county, your coverage, and your scope, but the structural point holds anywhere: total monthly carry lands well above the interest line alone, and every additional month costs you that full stack, not just the interest.
This is why the choice between a slightly cheaper loan and a faster process is not close for most flips. We wrote up the points versus rate math on a six month flip separately, and the same logic applies to carry. Speed is a cost lever. A project that closes a month sooner saves the entire monthly stack, which usually dwarfs what shopping an extra quarter point saves.
Where extra months actually come from
Nobody plans a nine month flip. They plan six and lose three in pieces:
- Permit and inspection gaps. A failed rough-in inspection is not a one day event, it is a correction, a re-request, and a wait for the inspector's next slot.
- Draw delays you cause. Lenders release draws when completed work is verified. Sloppy documentation, work done out of order against the scope, or unreachable contractors stall the verification, which stalls the money, which stalls the next phase.
- Change orders mid-project. Every surprise behind the drywall adds cost and days. The days are usually more expensive.
- The listing period. Carry does not stop when the paint dries. Days on market, the buyer's inspection and repair negotiation, and their lender's closing timeline all happen at full monthly cost. A financed buyer at a slightly higher price can net you less than a faster closing at a slightly lower one, once you price the extra weeks honestly.
How to budget carry like an underwriter
When we look at a deal, we want to see carry in the analysis as its own line, sized realistically. A practical approach:
- Estimate your true monthly stack for this specific property, using its actual tax bill and an insurance quote, not a guess.
- Multiply by your honest timeline including the sale period, not just the rehab. If the rehab is four months, the project is not four months. Add marketing time and a financed buyer's escrow.
- Then add cushion. Projects that model zero slippage have no way to absorb any. If the deal only works when every month goes perfectly, the deal does not work.
- Reserve the cash. Interest payments come due monthly during the project, before any resale money arrives. Part of what a lender evaluates is whether you have the liquidity to carry the project, because a borrower who cannot make month five's payment turns a slow project into a distressed one.
Practical ways to shrink the carry
Since time is the multiplier on every line, the highest-leverage moves are the boring operational ones:
- Order long-lead materials before closing. Windows, cabinets, and special-order fixtures set the critical path on most rehabs. A cabinet package that shows up in week nine instead of week five saves a month by itself.
- Sequence trades tightly and confirm the next crew before the current one finishes. Idle weeks between trades are pure carry with zero progress.
- Submit clean draw requests the day work completes, with photos and invoices organized the way your lender asks. Fast verified draws keep contractors paid and moving.
- List before the punch list is done. Photos of a 95 percent finished house can be on the market while touch-up paint dries. Waiting for perfect costs two to three weeks of full carry on a typical project.
- Price to the market on day one. A listing that chases the price down over six weeks pays for that experiment in monthly carry.
Carry is also why loan structure matters
Two structural features do more for your carry cost than any rate negotiation. First, interest-only payments keep the monthly obligation as low as it can be while you hold, which is exactly what a short-term project wants. Second, no prepayment penalty means finishing early is pure savings. Our rehab loans are built that way, 6 to 12 month terms, interest only, draws tied to milestones, and no penalty for exiting as soon as your buyer closes. If you are newer to how this financing works end to end, start with what a hard money loan is and then run your own project's carry with the framework above.
The flippers who last treat carry as a real budget line with a real cushion, and they pick financing and contractors for speed and reliability first. The ones who struggle treat carry as rounding. The difference shows up in month seven.