The Quick Read: Two separate blends decide this: the balance-weighted cost of the old liens you would pay off, and the pooled rent-to-payment coverage of the single new loan. Compare them over the same holding period, with every one-time cost included, before you sign anything.
- The old stack’s blended cost is an input to your decision. It is not the underwriting test.
- Weight each loan by its balance. A simple average of rates misleads you whenever balances differ.
- The lender tests the new loan’s full monthly obligation against pooled rent, not against your old rates.
- Fees, prepayment terms and a longer term can erase a lower headline cost. Compute break-even before you commit.
- Pooling can carry a weak property, but it also ties your strong properties to the same risk.
Why Does “Blended Cost” Mean Two Different Things?
Founders use one phrase for two calculations. The first is the weighted-average cost of the debt you are replacing. The second is the blended coverage of the new loan. They answer different questions, and mixing them up is where bad consolidations start.
DSCR Calculator
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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.
The first question is whether the new note improves your cost. The second is whether the new note qualifies at all. A lender never asks about your old blended rate. It asks whether the properties’ rent covers the new loan’s principal, interest, taxes, insurance and dues, together called PITIA. DSCR stands for debt service coverage ratio, which is rent divided by that monthly obligation.
DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. The property’s income does most of the talking. For the full picture, see Lendmire’s complete DSCR loans guide.
Key Terms Defined
Blended cost: the single average cost of several debts, found by weighting each debt by how much you owe on it.
Weighted-average rate: another name for blended cost. Multiply each balance by its rate, add those products, and divide by the total balance.
All-in cost: the cost of the new loan after you add one-time costs such as appraisal, title and legal work, and any prepayment charges on the old debt.
Pooled coverage ratio: total rent across the properties divided by the total PITIA on the one new loan.
Payoff balance: the exact amount needed to retire a lien on a specific date. It is not the number on your last statement.
Release clause: a contract term that lets you sell or refinance one property out of a pooled loan without retiring the whole note, if the lender’s conditions are met.
Step 1: What Goes in the Lien Inventory?
Start with every lien you might retire. Build one row per lien and record five things: the payoff balance, the note rate, whether the rate is fixed or adjustable, the remaining term, and any prepayment clause.
Pull payoff statements dated near your expected closing, not old statement balances. The weighted average moves whenever a balance moves. Every payment and every payoff changes it.
Add a sixth column: keep or retire. A founder who treats every lien as automatically in the pool has skipped the most useful decision on the page. Some liens belong outside it.
Also note which entity holds each loan and who guarantees it. Entity vesting is welcome in the network, though layered entities are not. Know your ownership chain before the file starts.
Step 2: How Do You Compute the Blended Cost of the Old Stack?
Weight each loan by its balance. The formula, per the Nav guide to cost of debt and the Nebraska SBDC cost-of-debt explainer, is the sum of each balance times its rate, divided by the total owed.
Here is a modeled three-lien stack, expressed only as shares of the total. Say lien A is 60% of the total balance, lien B is 30%, and lien C is 10%. Your blended rate is 0.60 times A’s rate, plus 0.30 times B’s rate, plus 0.10 times C’s rate.
The small lien barely moves the answer, even if its rate is the highest. The big lien dominates. That is the whole point of weighting. A simple average of the three rates gives lien C a third of the vote when it deserves a tenth.
A simple average overstates or understates true borrowing cost whenever balances differ in size. That is a common error founders make with this math. Lendmire’s piece How a Retiree Computes Blended Cost Before a DSCR Consolidation Refi walks the same arithmetic from a different borrower’s seat.
The result is your baseline. It is a snapshot, not a verdict. It says nothing yet about the new loan.
Step 3: What Does the New Loan Really Cost?
The new loan’s cost is more than its note. Add every one-time cost: origination and underwriting charges, appraisal, title, and settlement or attorney work. Then add any prepayment charge on the liens you are retiring. The CFPB describes a prepayment penalty as a fee some lenders charge for paying off a mortgage early, usually on a full payoff within a set number of years. Read each note, because the note and its rider control.
Next, convert the one-time costs into a break-even. The method is simple: total cash spent to refinance, divided by monthly savings, equals months to break even. Count savings on principal and interest only, since taxes and insurance do not change.
Keep the comparison honest with three rules:
1. Use the same principal on both sides. Compare the old stack’s balance with the new note’s retired-debt portion only.
2. Use the same holding period. If you expect to sell one property in a few years, a long break-even fails.
3. Compare total obligation, not just payment. Stretching the term lowers the monthly figure while keeping you in debt longer.
This is where a lower headline cost most often turns out to be a mirage.
Step 4: How Do You Separate Refinanced Debt From Fresh Cash?
Split the new loan into two pieces: the part that replaces old liens, and the part that is new money. Blend only the first piece when you ask whether you saved.
The fresh cash has its own cost and its own purpose. If you fold it into the savings math, the comparison looks better than it is. A founder pulling equity to fund the next acquisition is making a different decision from one simply lowering carrying costs.
Cash-out limits also shape the structure. Through select wholesale programs, cash-out on a standard rental investment property typically runs to 75% LTV up to $1,000,000, and to 60% on balances from $1,500,000 to $3,000,000. Above $3,000,000 there is no cash-out. All of it is subject to underwriting. A pool large enough to cross those lines changes how much new money is available.
Step 5: Will the Pool Still Pass the Coverage Test?
The test is pooled rent divided by pooled PITIA on the new note. Rent for each property is generally the lower of the lease or the appraiser’s market-rent opinion, so ask your broker which one applies.
A strong property can carry a weak one. Take an illustrative four-property pool with stand-alone coverage of 1.45x, 1.30x, 1.10x and 0.70x. If the four payments are similar in size, the blend lands near 1.14x. The 0.70x property would struggle on its own and passes inside the pool.
That is the upside. The downside is that your three healthy properties now share a note with the sick one.
Typical program numbers on the investment-property side:
- A coverage ratio of 1.00 earns full leverage.
- Coverage from 0.75 to 0.99 is a real path through select programs to $2,000,000, but LTV and terms adjust, subject to underwriting.
- On a purchase or rate-and-term refinance of an investment property, leverage typically runs to 80% up to $1,000,000, and to 75% from $1,000,000 to $3,000,000. Above that it steps down to 65% and then 60%, on review above $4,000,000.
- The credit floor is 660 on most files, and 700 above $3,000,000.
- Six months of PITIA reserves on the subject property is typical, and twelve for first-time investors. Two appraisals apply above $2,000,000.
With interest-only, the 120-month period on 30- and 40-year terms typically goes to 75% LTV with coverage of 0.75 or better, qualified on interest, taxes, insurance and dues (ITIA). Remember that every property converts to full principal and interest at the same recast date. Your coverage math should survive that day.
Then stress-test the pool. Run a vacancy at your weakest property, a rent drop across the board, and a large repair. If the pooled number only works when everything goes right, the pool is too tight.
What Does the Decision Look Like?
Put the old stack and the new note side by side, then run the decision rule below.
| Situation | Blended cost | Coverage retest | Verdict |
|---|---|---|---|
| Clear win | New note lower, fast break-even | Pool clears 1.00 | Consolidate |
| Drop fails after fees | New note lower, slow break-even | Pool clears | Hold unless you keep it long |
| Coverage fails | New note lower | Pool below 1.00 | Drop or swap a property |
| Cheap loan in the stack | Blend rises if retired | Pool clears | Partial consolidation |
Partial consolidation deserves more attention than it gets. If one long-dated, low-cost loan is in your inventory, retiring it to pull equity can raise the weighted cost of the whole stack. Leave it out of the pool and consolidate only the expensive liens.
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.
Where the Rule Breaks
The blend hides a bad trade. A low blended cost on the old debt can mean consolidation is wrong. Run both stacks side by side before assuming the new note wins.
The math ignores term. Weighted-rate math is a snapshot. It does not show maturities, balloons, or the interest-only recast date. A payment that falls because the term stretched is not a saving.
Cross-collateralization changes your risk. When properties secure one note, trouble on one can reach the others. Read the default and cure language yourself.
Release terms are negotiated. A release clause lets you sell one property without retiring the whole note, but the price and conditions vary by lender. They are not standardized. Ask about them before you pick the structure.
“Portfolio” is not “blanket.” A portfolio loan means the lender keeps it on its own books. Cross-collateralization is what makes a loan a blanket.
Separate liens are the alternative. Individual cash-out refinances keep each lien isolated. The cost is that each property must qualify on its own, and each carries its own appraisal and title work.
A founder with a weak property often asks whether pooling is a trick. It isn’t. Pooling is legitimate, but it moves risk around rather than removing it.
What Do Most Founders Get Wrong?
- Averaging the rates. Always weight by balance.
- Counting fresh cash as savings. Separate it first.
- Judging by the payment. A lower monthly figure can mean higher lifetime cost.
- Expecting instant savings. Recouping refinance costs can take years, so test break-even against your actual hold.
- Assuming any property exits freely. Release clauses are contractual and priced.
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.
Founder Worksheet
Copy this into a spreadsheet:
1. List each lien: payoff balance, note rate, fixed or adjustable, remaining term, prepayment clause, keep or retire.
2. Compute each lien’s share of the retired total.
3. Compute the weighted rate: sum of share times rate.
4. Add one-time costs, including old-loan prepayment charges.
5. Divide one-time costs by monthly savings to get break-even months.
6. Compute pooled coverage: total rent divided by total new-loan PITIA.
7. Stress it: vacancy, rent drop, repair.
8. Record the release terms and the cross-default language.
9. Decide: consolidate, partially consolidate, or keep.
Lendmire, a mortgage broker arranging business-purpose DSCR loans in 41 markets including Washington, D.C., can walk a founder through the coverage and pooling items on the worksheet against the lenders in its wholesale network. Every file is underwritten individually, and nothing here is a commitment to lend.
Frequently Asked Questions
Why can’t I just average my loan rates?
A simple average treats a small loan the same as a large one. Weight each rate by its balance so the big loans count for more. That is the only version that matches what you actually pay.
Which liens belong in the calculation?
Include only the ones you plan to retire. First liens, second liens, lines of credit and bridge loans all qualify if they will be paid off. Leave out any cheap, long-dated loan you would rather keep, then run the stack both ways.
Does the fresh cash count toward my savings?
No. Separate retired debt from new money, and blend only the retired part when you test savings. The new cash has its own cost and purpose, and folding it in flatters the result.
Does a lower payment mean a lower cost?
Not necessarily. A longer term or an interest-only period lowers the payment but can raise total cost. Compare total obligation over the same holding period, and check break-even from one-time costs divided by monthly savings.
What coverage level should I expect to need?
Most programs reward 1.00 or higher with full leverage. Select programs reach into the 0.75 to 0.99 range at reduced leverage, with terms that adjust, subject to underwriting. Property type, credit, reserves and loan size all move the answer.
If you are buying or refinancing a high-balance rental property and want to see how the numbers work, Lendmire can help you compare super jumbo DSCR loan options based on the property income, the loan balance, credit profile, leverage, and investor goals.
Lendmire’s self-employed mortgages page presents both super jumbo programs, bank statement and DSCR, side by side.
About Lendmire
Lendmire, NMLS# 2371349, is a non-QM mortgage broker serving real estate investors in 41 markets, including Washington, D.C., through DSCR investor loan programs. Qualification is generally reviewed around the subject property’s rental income, not the borrower’s W-2 history — a practical fit for LLC-titled portfolios and self-employed investors. All scenarios remain subject to lender review and program guidelines. Two consecutive Scotsman Guide Top Mortgage Workplace recognitions (2025, 2026).
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References
1. Nav: how to calculate cost of debt
2. Nebraska SBDC: cost of debt
3. CFPB: what is a prepayment penalty?
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: Super Jumbo DSCR vs Commercial Loan for a Founder After an Exit · Post-Sale Assets vs Bank Statements vs DSCR for a Founder Buying Luxury · Does a DSCR Lender Use IO or Amortizing Payments on a 2-4 Unit Rental?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
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.