Down Payments, Rates, and Reserve Requirements

Three requirements, one risk profile

An investment loan's down payment, rate, and reserves aren't three separate line items to negotiate one at a time — they're three expressions of the same thing: how much risk the lender is taking, and how much of it you offset. See them as a system and the whole picture gets easier to manage.

A lender pricing a loan on a property you won't live in is pricing risk. Each of the three requirements is a dial on that risk. A larger down payment lowers the loan-to-value, which lowers the lender's exposure — and improves the loan's pricing. A higher credit score signals lower default risk — and improves the pricing again. Reserves prove you can keep paying through a rough stretch — which is why the lender requires you to have them available before it will fund. Move any one dial and you've changed the risk the lender is holding, which is why the three are best understood together rather than shopped in isolation.

Down payment: set by rule at the floor, by leverage above it

Investment-property down payments start at an agency-set minimum, but the figure that matters for your rate is how far above that floor you go — because down payment and rate are directly linked. More equity isn't just a bigger check; it's a cheaper loan.

On the conventional side, agency minimums are firm: a one-unit investment property generally requires at least 15% down, and a two-to-four-unit property at least 25% (Fannie Mae). In practice, investors often put more down — commonly in the 20–25% range on a one-unit — and DSCR programs set their own requirements. The reason to go above the minimum isn't only a smaller loan; it's pricing. Which brings us to the mechanism that ties down payment to rate.

Rate: your risk profile, priced into the loan

The rate you're quoted on an investment property reflects your risk profile: market conditions set the pricing environment, then loan-level price adjustments — driven by occupancy, loan-to-value, and credit — adjust the loan's price, which your lender delivers to you as a rate-and-points combination. This is why two borrowers on the same property get different quotes.

Fannie Mae publishes a loan-level price adjustment (LLPA) matrix — a grid of upfront pricing adjustments (expressed in price, i.e. points) that grow as loan-to-value rises and as credit score falls, with investment properties carrying some of the steepest adjustments in the system. Importantly, you don't take a base rate and add the LLPA to it: the LLPA changes the loan's price, and the lender converts that price into the rate-and-points options you're shown. You don't need to memorize the grid; you need its shape — more down and a higher score move you into cheaper pricing; less down and a lower score into more expensive pricing. That's the lever. Improving your credit tier or adding a few points of down payment can move your pricing more than shopping a fifth lender for the same risk profile. (Rate levels move constantly with the market — get today's numbers from a lender when you apply; what's durable is the LLPA structure, not this week's rate.)

   HOW YOUR LOAN GETS PRICED   (LLPAs adjust PRICE, not "base rate + %")

     market pricing environment
              │
              ▼
     + risk adjustments (LLPAs):  occupancy · loan-to-value · credit score
              │     smaller adjustments ◄────────► larger adjustments
              │     more down / higher score        less down / lower score
              ▼
        the loan's PRICE
              │
              ▼
     your RATE + POINTS options   ← the lender converts price into what you see

   You control two dials: EQUITY and CREDIT. Reserves are separate — liquidity held
   AFTER closing, not paid at the table. Rate LEVELS move with the market (verify at
   application); the risk→price STRUCTURE is what's durable.

The rate isn't a single posted number — it's your risk profile priced. The two inputs you can change before applying are how much you put down and where your credit sits.

Reserves: liquidity after closing, not cash at the table

Reserves — months of the full housing payment (PITIA) the lender requires you to have available after closing — are a distinct liquidity requirement, not part of the cash you hand over at the table. They aren't a fee and they aren't spent at closing; they're proof you can keep paying through a soft stretch.

A conventional investment loan commonly wants around six months of the property's full payment available in reserve after closing, and DSCR programs set their own requirement (often scaling with loan size and seasonal markets). The key insight is that a financed STR really has three different liquidity requirements, and lumping them together is how investors get caught short:

• Closing liquidity — the cash actually consumed at the table: your down payment plus closing costs and prepaids. This is the real "cash to close."
• Lender-required reserves — assets you must have available after closing (you don't spend them; you prove them). This is the six-months-of-PITIA figure.
• Operating liquidity — the reserve you size to your off-season trough, which protects the deal all year (see How Loan Structure Interacts With Seasonal STR Cash Flow).

The first is money you spend; the second and third are money you keep available. Plan all three separately — only the first is "cash to close," the lender's reserve protects the lender, and your operating reserve protects the deal.

Your action plan

1. Budget three liquidity buckets, not one. Cash to close (down payment + closing costs) is money you spend; lender-required reserves and your own operating reserve are money you keep available. Plan all three separately.
2. Decide your down payment for pricing, not just the minimum. Going above the floor lowers your LTV and improves your pricing; weigh a bit more equity against what it buys.
3. Fix your credit before you apply. Your score moves your pricing through the LLPA grid; clearing the next tier can beat shopping another lender.
4. Stage reserves in accessible funds. Several months of full PITIA (more for a larger loan or seasonal market), held where the lender can verify them.
5. Get current rate numbers at application. The LLPA structure is durable; the rate level isn't — pull today's numbers from a lender, and ask what's driving your add-ons.
6. Size your own reserve too. Beyond the lender's requirement, hold what your off-season trough needs; plan to the larger of the two.

The bottom line

Financing an STR costs more up front than financing a home you live in, and it does so in three linked ways: a larger down payment, a higher rate, and required reserves. They're not separate negotiations — they're three readings of the same risk profile, and the two dials you actually control are equity and credit. Put down enough to move your loan-to-value into cheaper pricing, clear the next credit tier before you apply, and plan reserves as the separate post-closing liquidity they are — one of three liquidity buckets, not a surprise at the table. Do that and you've improved the pricing you can while planning honestly for the requirements you can't change.

About the author

Matt Nunn is the founder of Builders Finance. He has spent two decades working with the financial side of real estate businesses, and started Builders Finance to give short-term-rental operators the financial systems, frameworks, and plain-language education that most hosting advice skips over. Builders Finance publishes educational content for STR owners and is not a substitute for advice from your own qualified financial or tax professional.

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Educational information only — not individualized tax, legal, or investment advice. The worked example is an illustrative model, not a projection or a recommendation.