Most first-time flippers budget the purchase, the rehab, and the sale. Then the first loan statement shows up and nobody priced the monthly payment. Fix and flip loan payments Iowa investors deal with are usually interest-only, which keeps the monthly number low, but those payments run every month the house is in your hands. On our loans the interest is calculated Dutch style, so the payment is the same number every month. An interest reserve takes more of the sting out by setting money aside up front to cover those payments while the crew works. Here’s how I think about both, how to put them into your deal math before you make an offer, and what to ask any lender before you sign.
Fix and Flip Loan Payments Iowa Investors Should Expect
On a short-term rehab loan, you typically aren’t paying down principal each month. You’re paying interest, and the principal comes due when you sell or refinance. That’s what interest-only means.
How that interest is figured is where lenders differ. Some charge interest only on the money drawn so far, so the payment climbs as the rehab moves along. We use Dutch interest. The interest is calculated on the full loan amount from day one, including rehab money you haven’t drawn yet, so the payment stays exactly the same every month. That makes it easy to budget. It also means you’re paying interest on funds you haven’t pulled. Your term sheet spells out how any lender does it, so read that section twice.
What an Interest Reserve Does for You
An interest reserve is a set-aside, built into the loan or funded from your own cash, that pays the monthly interest during the rehab. Instead of writing a check every month while you’re also paying contractors, the payments come out of the reserve.
It doesn’t make the interest go away. It moves the cost to the front of the deal and puts it on the budget, where it belongs. Two things make it worth understanding:
- It forces you to count the carry as a real project cost, not a rounding error.
- It gives you a fixed pool to measure against. If the project runs long, you can see the reserve running low before the checks start bouncing.
Run the Carrying Cost Math Before You Offer
Here’s a simple example. Picture a century-old two-story in Sherman Hill with a full interior rehab: plaster walls, original windows, a kitchen that hasn’t been touched in decades. A scope like that has a lot of moving parts.
Say you buy it for $120,000 and budget $60,000 for the rehab. Say the finished house is worth $260,000, so 70 percent of ARV is $182,000. I’m using a 12 percent rate here only to keep the arithmetic clean. Your actual rate comes from your term sheet.
- The loan is $168,000: $108,000 for the purchase portion plus the $60,000 rehab. That sits under the $182,000 cap.
- With Dutch interest, the payment is figured on the full $168,000 from day one.
- At 12 percent, that’s $1,680 a month, every month.
- Over a six-month plan, the interest runs $10,080.
Now the part people skip. If the job runs two months over, that’s another $3,360. Your reserve was sized for six months, and you’re out of it in month seven. The fix is easy on paper: size the reserve for the schedule you expect, then add a cushion for the schedule you’ll actually get.
Where Interest-Only Payments Catch Investors Off Guard
The low monthly payment is the attraction, and it’s also the trap. A payment that feels small keeps you from noticing how fast the months add up.
Watch for these:
- Schedule slip. Permits, a backordered window order, or an Iowa winter slowing exterior work can push you past the timeline you priced.
- Payments on top of everything else. Interest is only one carrying cost. Taxes, insurance, and utilities keep running too.
- The balloon at the end. Interest-only means the full principal comes due at payoff. Your exit has to cover it, with room to spare.
- Delays that don’t pause the payment. If you’re waiting on a draw while the contractor waits on you, the payment is still due.
Loan Terms to Plug Into Your Numbers
When you build your deal sheet, here are the Little Guy Loans terms that set the size of the loan:
- Up to 90% of the purchase price (loan-to-cost).
- Up to 100% of your rehab costs.
- A maximum of 70% of ARV, which is the controlling cap.
The 70% of ARV cap decides the final loan amount. If purchase plus rehab pushes past it, you cover the gap with your own cash, and that changes how much you can afford to carry. Run the cap first, then run the interest.
FAQ
What are fix and flip loan payments?
Fix and flip loan payments are the monthly interest charges on a short-term rehab loan that, on most hard money structures, are interest-only, with the principal repaid at sale or refinance.
What is Dutch interest?
Dutch interest is a calculation method that charges interest on the full loan amount from day one, including rehab funds not yet drawn, so the monthly payment stays exactly the same.
What is an interest reserve?
An interest reserve is a pool of money set aside at the start of a loan that covers the monthly interest payments while the property is being rehabbed.
Does my payment go up as I draw rehab money?
A payment on a Dutch interest loan does not go up as rehab money is drawn, because the interest is already figured on the full loan amount. Other lenders charge only on funded draws, so check your term sheet.
What to Take From This
Interest-only payments keep the monthly number manageable, but they don’t make the cost disappear. Every month the house sits in your name, the payment is due, and with Dutch interest it’s the same amount whether you’ve drawn a dollar of the rehab money or all of it.
So put the carry in the deal sheet before you write the offer. Size an interest reserve for the schedule you expect, add a cushion for the one you’ll probably get, and check the 70% of ARV cap before you count on a loan amount. Read the payment and interest language in your term sheet slowly. A flip that survives a two-month delay on paper has a much better shot at surviving one in real life.
