The Quick Read: Weight each existing loan’s rate by its payoff balance, add the prepayment penalties and the new loan’s one-time costs, and divide that total by the monthly savings to get break-even months. Then run a second, separate test on pooled rent against the pooled monthly obligation. A consolidation has to pass both tests, and passing one says nothing about the other.
- Weight every rate by its balance. A simple average misstates your cost when the loans are different sizes.
- Add each prepayment penalty, calculated on the balance at payoff rather than the original loan amount.
- Divide one-time costs by monthly savings to get break-even months, then compare that figure to your hold period.
- Re-test coverage on the new payment, because the old payments disappear at payoff.
- Compare terms, not just rates. A lower blended rate over a longer payoff horizon can cost more in total.
Plenty of investors hear “blended” and assume one number. There are really two. One is the blended cost of the debt you carry now, which is the baseline the new loan must beat. The other is the blended coverage ratio of the pool the new lender will underwrite. This walkthrough builds both, then shows where the math breaks. If you want the broader program picture first, Lendmire’s complete DSCR loans guide covers it.
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Rate source: Freddie Mac 30-yr average via FRED® — Federal Reserve Bank of St. Louis · effective Oct 15, 2026
Prefilled with starting assumptions — enter your own rent or nightly figures, taxes, insurance, and HOA for a more accurate picture.
Program parameters update from Lendmire’s centralized guideline source. Taxes and insurance are editable estimates.
As of Oct 15, 2026 · General Freddie Mac market benchmark, not a Lendmire loan offer. Rent, nightly rate, occupancy, taxes, and insurance are editable estimates. Short-term rental figures are estimates only and vary significantly by season, property type, management approach, and local short-term-rental rules — confirm local regulations before relying on them. Qualifying income for short-term rentals varies by program — some use appraisal market rent, others use documented STR history or projections — and is confirmed in underwriting. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
What Does “Blended Cost” Mean Here?
Blended cost is the single weighted figure that describes what your current stack of loans costs you. It is the baseline. If the replacement loan, after penalties and closing costs, cannot beat that baseline or deliver something else you value, the consolidation does not pay.
Four terms get mixed up, so here is the split:
| Term | What it measures | Used for |
|---|---|---|
| Blended (weighted) rate | Balance-weighted rate of old loans | Baseline to beat |
| All-in cost | Rate plus penalties and fees over the hold | True price of switching |
| Blended DSCR | Pooled rent ÷ pooled PITIA | Underwriting test |
| Simple average | Unweighted mean of rates | Nothing. Skip it. |
A new DSCR note is priced fresh on its own credit and collateral terms. It is not an average of your old rates. The weighted figure is your yardstick, never a prediction of what you will be offered.
Step 1: Build the Payoff Stack
Start with a table, one row per lien you might retire. Columns: payoff balance, rate, whether the rate is fixed or adjustable, remaining term, prepayment penalty terms, and the full monthly obligation including taxes, insurance, and any HOA dues.
Request a payoff letter from each servicer. It shows principal, accrued interest, and any prepayment charge as of a specific date. Use payoff balances, not original loan amounts and not the balance on your last statement. Both the weighted rate and the penalty depend on the balance at payoff.
Also note which liens sit on which property. If you are consolidating several properties into one loan, that mapping drives the coverage test later. Look for non-DSCR debt too.
Step 2: Weight the Rates of What You Are Retiring
The method is standard cost-of-debt arithmetic. As the Nebraska SBDC at the University of Nebraska Omaha lays out, you multiply each balance by its rate to get annual interest, add the interest across loans, and divide by total debt. Its business-loan example turns $108,000 of total debt and $7,025 of annual interest into a 6.5% weighted average. That is an illustration of the method, not a mortgage benchmark.
Larger balances carry more weight. That is why a simple average fails: a small loan with a high rate barely changes your true cost, but an unweighted average treats it like the main event.
Here is a labeled illustration with modeled inputs, not market data. Say you hold three loans. Balance shares are 50%, 30%, and 20% of the stack. Multiply each share by its own rate and add the three products. The result lands closer to the largest loan’s rate than to the midpoint of the three. Run the same steps on your own stack, using the dollar balances from your payoff letters.
If you only know each loan’s percentage of the property’s value, you can weight by those percentages instead. The proportions are the same, so the answer is the same. That shortcut suits a first lien and a second lien on one property.
For adjustable or interest-only loans being retired, use the current, fully indexed rate. The weighted average is only as good as the rate you feed it.
Step 3: Price the Exit and the New Loan
The weighted rate ignores everything except interest. Your real cost of switching also includes prepayment penalties on the old notes and closing costs on the new one.
Penalties first. They are charged on the outstanding balance at payoff, not the original amount. The formula is the payoff balance times that year’s percentage. Lendmire’s page on how much it costs to remove the exit fee on a DSCR loan walks through it. A common DSCR structure is a step-down schedule, often written 5-4-3-2-1: 5% of the balance in year one, then 4%, 3%, 2%, and 1% in year five. In year three, that is 3% of the balance. Some notes use a different structure, such as six months of interest. Loans that pre-date DSCR financing, such as a conventional or bank loan, may have no penalty at all. Read each note.
Penalties are per loan. Each old note has its own clock, so a consolidation can trigger a charge on one loan and none on another. A partial paydown inside the penalty window can also trigger the fee on some notes. If some of your loans are already past their windows, refinancing only those is a legitimate variation, covered below.
Closing costs come next. NerdWallet lists the usual categories: lender fees, title costs, and third-party costs such as the appraisal. Motley Fool’s closing-cost research shows these costs vary by lender, location, and loan size. Its figures describe owner-occupied refinances, so treat them as context only. On a consolidation, per-property appraisals, rent opinions, and title and recording work still apply to every property. Costs do not shrink to one set.
Ask for a written breakdown and add every one-time item to the penalty total. A “zero out of pocket” refinance usually means the lender is covering costs through a credit built into a higher rate. The costs did not disappear. Fold any rate bump from that credit into your comparison.
Finally, check term. A lower blended rate stretched over a longer payoff horizon can cost more in total interest. The weighted rate says nothing about remaining term, amortization, or escrow differences, so compare those on their own lines.
One more tradeoff sits here. A longer prepayment penalty on the new loan generally buys a lower note rate. A shorter or no penalty usually costs more in rate or points. That choice changes your blended cost, and it sets the exit cost you will face next time.
Step 4: Compare on Equal Footing and Find Break-Even
Put both sides in one table, on the same principal and the same monthly basis:
| Line | Existing stack | Proposed loan |
|---|---|---|
| Principal | Sum of payoffs | Same principal |
| Weighted rate | Your Step 2 result | The quoted note |
| Monthly obligation | Sum of PITIA | New PITIA |
| One-time costs | None | Penalties + closing costs |
| Remaining term | Weighted by balance | New term |
Break-even months equal total one-time costs divided by monthly savings, the standard formula NerdWallet gives in its refinance break-even explainer. It is the point where accumulated savings overtake what you spent. Your expected hold period has to be longer than that figure, with margin.
Two decision rules help. If monthly savings are zero or negative, there is no break-even. The only reasons to proceed are non-cost ones, such as simplification or fresh cash. And if break-even lands near your likely sale or refinance horizon, treat the deal as marginal. Investors often overestimate how long they will hold, and a plan to sell in two years does not pair well with a five-year payback.
Step 5: Isolate the Cash-Out, If There Is Any
Many consolidations pull equity too. Split the new loan in two: the part that retires old debt, and the fresh cash. Compare the first part to your old stack using Step 4. Then judge the fresh cash separately by asking what its incremental cost is relative to the net proceeds you receive.
This split keeps you honest. A consolidation can look attractive only because the extra cash masks a worse deal on the refinanced part. For the cash-out side in depth, see Lendmire’s piece How to Calculate Blended Cost on a Cash-Out DSCR Consolidation Refi.
Leverage matters here. Across the select wholesale programs Lendmire works with, cash-out on an investment property typically tops out at 75% up to $1,000,000, 70% to $1,500,000, and 60% to $3,000,000, with none above $3,000,000, subject to underwriting. A rate-and-term consolidation on an investment property, where you take no cash, typically runs higher leverage: 80% to $1,000,000 and 75% to $3,000,000, subject to underwriting.
Step 6: Re-Test Coverage on the New Payment
Now the second test. Blended DSCR is total monthly rent across the pool divided by total monthly PITIA across the pool. PITIA means principal, interest, taxes, insurance, and HOA dues. It leaves out utilities, repairs, and management fees.
Use the new note’s payment, not the old ones. A change in quoted terms moves the ratio, so rerun it whenever the quote changes. On interest-only structures, the denominator drops principal and uses interest, taxes, insurance, and dues. Across the network, interest-only periods run 120 months on 30- and 40-year terms, up to 75% leverage with coverage of 0.75 or better, subject to underwriting. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
Coverage of 1.00 earns full leverage on most select programs. Coverage from 0.75 to 0.99 is a real path through select lenders in the network, though LTV and terms adjust, subject to underwriting. A vacant or unleased property drags the whole ratio down. Whether lease rent or market rent counts, and how short-term rentals are treated, are program-level decisions.
Stress the result before you rely on it. Cut rent by a meaningful slice, take one unit vacant, and add a repair shock to your reserve plan. Ask whether the pool still clears your target. On most programs in the network, the subject property needs six months of reserves, and cash-out proceeds do not count toward them.
Above $2,000,000 in loan size, two appraisals are required on most files, subject to underwriting.
Where the General Rule Breaks
Pooling hides weak properties. One strong property can carry a weak one in the blended ratio. Compute each property’s standalone coverage too, so you know what the pool is masking.
Pooling cuts both ways. Separate loans isolate trouble to one note. A blanket loan pools it, because every property secures the whole balance. Trouble with one property can affect the standing of all of them. A blanket structure is not automatically cheaper and not a shortcut around underwriting.
Release terms cost money later. Partial-release clauses are negotiated individually, not standardized. If you may sell one door, price that exit into the blended cost today.
Some states restrict prepayment penalties. A few states limit them even on investment property. Rules differ, so confirm what applies to each note.
Short-term rentals. On the network’s programs, short-term-rental income is typically twelve months of operating history on a refinance, counted at a discount to gross rent. Municipal permission is documented property by property.
Rate versus effective cost. Even a perfect weighted rate misses term, amortization, and escrow. Compare those separately.
Pool size limits. Up to 20 financed properties is typical on the network’s programs, subject to underwriting.
Here is a real judgment call: refinance only the loans already past their penalty window, or the whole stack. Partial consolidation avoids paying penalties, though it leaves you with a mixed set of notes. Run both through Step 4 and let the break-even decide.
DSCR vs. conventional financing
There are two common ways to finance an investment property, and they qualify you differently — here’s how investors weigh them.
Why investors choose it
- Qualifies on the property’s rental income — no personal tax returns, W-2s, or pay stubs needed to document income.
- No personal debt-to-income ceiling to clear, so existing mortgages and obligations don’t cap your borrowing the same way.
- Can be closed in an LLC, keeping the property inside a business entity.
- Built for scaling — not held to the limit on number of financed properties that conventional financing applies.
- Underwriting centers on the deal: generally qualifies when the rent covers the payment, a 1.00x coverage ratio being a common baseline (confirmed in underwriting).
- Designed specifically for investment property, including long-term and, where the program allows, short-term rentals.
Where it’s strong
- Often the lowest ongoing financing cost for a buyer who fully qualifies on personal income — a fit for a first property or a cost-first purchase.
Trade-offs for investors
- Requires full personal income documentation and must fit within a debt-to-income limit — salary, existing debts, and other mortgages all count.
- Typically held in your personal name rather than a business entity.
- Caps how many financed properties you can carry, which can become a ceiling as a portfolio grows.
- Evaluates you as a borrower as much as the property, which usually means more paperwork.
How investors usually choose: a first or single property often optimizes for the lowest financing cost; portfolio builders often optimize for leverage, vesting in an LLC, and scaling past conventional caps. The right answer depends on your goals, the property, and current guidelines — both paths run through select lenders in Lendmire’s wholesale network, with eligibility and terms confirmed in underwriting.
Consolidate Everything, Part of It, or Add a Second Lien?
| Option | Best when | Main risk |
|---|---|---|
| Full consolidation | Penalties are spent, rate gap is wide | Cross-collateral exposure |
| Partial consolidation | Only some notes are past penalty | Mixed payments stay |
| Second lien only | First lien is cheap and worth keeping | Blend flatters the new money |
The second-lien blend deserves a note. Blending a low-rate first lien with a pricier second lien produces a combined rate below the second lien’s own rate. That is arithmetic, not a bargain. Judge the new money on its own cost, as in Step 5.
Common Mistakes
- Averaging rates without weighting by balance.
- Comparing different principals, such as old balances against a larger new loan.
- Using the original loan amount to size a penalty.
- Leaving taxes, insurance, and HOA out of PITIA, which overstates coverage.
- Treating a cleared coverage floor as proof of positive cash flow.
- Assuming a blanket structure is automatically cheaper.
Key Terms Defined
Weighted-average rate: the rate you get by multiplying each loan’s balance by its rate, adding the results, and dividing by the total balance.
PITIA: principal, interest, taxes, insurance, and HOA dues, the full monthly housing obligation on a property.
Blended DSCR: total monthly rent across a pool of properties divided by total PITIA across the same pool.
Prepayment penalty: a charge for paying a loan off early, usually a percentage of the balance at payoff that steps down over time.
Break-even months: one-time costs divided by monthly savings.
Cross-collateralization: pledging multiple properties against one loan, so each property backs the whole balance.
Pre-Quote Checklist
Gather these before asking for numbers: payoff letters for every lien, the rent roll or leases, current tax and insurance figures for each property, any HOA dues, and the prepayment terms on each old note. Add your expected hold period per property. Entity vesting is accepted on most programs, subject to program terms and with no layered entities. DSCR loans are designed for non-owner-occupied investment properties. They qualify primarily on property-level rental income covering the payment, subject to lender guidelines.
Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
Frequently Asked Questions
Is a simple average of rates ever acceptable?
Only when every balance is identical, which almost never happens. Weighting by balance is the standard method. Use the weighted version every time.
Do fees belong in the blend?
Not in the weighted rate itself, which measures interest only. They belong in the all-in comparison. Add closing costs and penalties to your one-time total, then run break-even against monthly savings.
How do I handle a prepayment penalty?
Calculate it on the balance at payoff using the schedule on that note, then add it to the cost of switching. On a 5-4-3-2-1 schedule, a year-three payoff is 3% of the balance. If a note is nearly out of its window, waiting may beat paying.
Does a lower payment mean a better deal?
Not necessarily. A lower payment can come from a longer term, which raises total interest paid. Compare remaining term and total cost, not the payment alone.
Does blended DSCR equal blended cost?
No. Blended cost asks whether switching saves money. Blended DSCR asks whether the pooled rent covers the pooled obligation. A consolidation can pass one and fail the other.
Can I keep one loan and consolidate the rest?
Yes, that is partial consolidation. It often makes sense when one note carries a low weighted cost or a live prepayment penalty. Eligibility depends on lender guidelines and the property.
If you are consolidating liens on high-balance rental property and want to see how the numbers work, Lendmire can help you compare DSCR loan options based on the property income, the loan balance, credit profile, leverage, and investor goals. Lendmire is a broker arranging financing through select lenders in its wholesale network across 41 markets, including Washington, D.C. Nothing here is a commitment to lend.
For current guidelines and terms, see Lendmire’s super jumbo DSCR loan programs page.
Lendmire’s self-employed mortgages page presents both super jumbo programs, bank statement and DSCR, side by side.
About Lendmire
Lendmire (NMLS# 2371349), a non-QM mortgage broker serving investors in 41 markets including Washington, D.C., helps structure DSCR scenarios commonly evaluated around a property’s rental income rather than personal income paperwork, subject to lender guidelines. A Scotsman Guide Top Mortgage Workplace in 2025 and 2026, Lendmire places loans through wholesale investor lenders and is not a direct lender.
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References
1. Nebraska SBDC (University of Nebraska Omaha): How to Calculate Cost of Debt
2. NerdWallet: When Will You Break Even on a Refinance?
3. Motley Fool: Average Cost of a Mortgage Refinance
This article is part of Lendmire’s super jumbo DSCR loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How to Consolidate LLC Rentals Into One Portfolio DSCR Loan · No-Ratio DSCR vs Sub-1.0 DSCR on an IO ARM vs Fixed Loan · How Much Can You Borrow With a Jumbo DSCR Loan?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Disclosures. The information presented in this article is general market commentary, not financial, legal, or tax advice. Lendmire is a mortgage brokerage (NMLS# 2371349) — not a direct lender or depository institution — and loan placement is subject to lender underwriting. Nothing in this content represents a commitment to lend. Loan terms, pricing, and program availability vary based on borrower qualifications, property characteristics, and state of subject property, and are subject to change at any time. Lendmire complies with Equal Housing Opportunity requirements. Consumer access: nmlsconsumeraccess.org.