Which House Should You Tap? Cash-Out Refinance on a Second Home vs. Pulling Equity From Your Primary in 2026

Start With the Question Underneath "Cash Out the Vacation Home"

Fannie Mae's Eligibility Matrix caps a cash-out refinance at 80% of value on a one-unit primary residence and at 75% on a one-unit second home. The 30-year fixed rate averaged 6.76% in the most recent weekly Freddie Mac Primary Mortgage Market Survey, and the Bank Prime Loan rate stood at 6.75% in the Federal Reserve's most recent H.15 release. Those three numbers frame the decision this article is about. If you own two houses and need to raise money against one of them, the rulebook treats the two properties differently, the market prices a new first mortgage at roughly the same cost as the index most HELOCs float on, and the variable left to decide the answer is what each of your existing mortgages costs you today.

The request usually arrives as a product: "I want to cash out the lake house." I live on a lake in Minnesota, and the lake-house version of this request is a familiar one. That request can be answered as asked, with a quote for a second-home cash-out refinance, and the quote will be accurate. It'll also be incomplete. Ask why, and the answer is a use for the money, whether a renovation, a tax bill, a business need, or a down payment on the next property. Ask what it costs to get the money, and the answer is how much of your existing debt you'd have to re-price at today's rate to reach the equity. The deeper want, almost every time, is the same one: $75,000, or whatever your figure is, at the lowest total cost, without giving up a mortgage you'd regret losing. That cost is measured in dollars of interest per year and dollars of payment per month, and those are the units this decision should be run in.

Each house brings three numbers to that comparison: its value, the balance and rate on its first mortgage, and the cap the rulebook places on how much of its value you can borrow. The example I'll run uses a $400,000 vacation home carrying a $200,000 balance at 6.0% and a $600,000 primary residence carrying a $300,000 balance at 3.25%, with $75,000 as the amount needed. The values, balances, and existing rates are illustrative and chosen to make the contrast visible; the caps, the survey rate, and the prime rate are sourced. Both loans sit well inside the FHFA's baseline conforming limit of $832,750 for a one-unit property, so this is a conventional-conforming comparison at every step. A two-property conversation should start with those six numbers and work toward a structure, because the structure decides which mortgage gets reset, and the reset is the largest cost in the comparison.

The Rulebook Treats a Second Home as Different Collateral

Five percentage points of loan-to-value separate the two caps, and on a $400,000 house that's $20,000 of borrowing room. At 75%, the largest cash-out loan the vacation home supports is $300,000, and after the $200,000 balance is paid off, $100,000 is the most that can come back to you before closing costs. The same house as a primary residence at 80% would support a $320,000 loan and $120,000 of gross proceeds. A $75,000 need fits under either cap in this example, but the margin is thinner on the second home. If the vacation home carried a $250,000 balance instead, the 75% cap would leave only $50,000 of room, and the second-home route would be closed before pricing ever entered the discussion.

Section B2-1.1-01 of Fannie Mae's Selling Guide states that the price adjustment for a loan secured by a second home applies in addition to any other price adjustments on the transaction, and a cash-out refinance carries a loan-level price adjustment of its own under Fannie Mae's pricing. That means a second-home cash-out carries both adjustments at once, and the rate a lender quotes on the vacation home lands above the rate the same lender would quote on a primary-residence cash-out for the same borrower. Pricing is the second difference between the two properties, and it compounds. The published matrices don't translate into a single figure I can print here, because the size depends on your credit score and the loan-to-value you land at, so the defensible statement is directional: expect a meaningfully higher rate on the second-home cash-out than on any route through your primary, and get both quotes in writing before assuming the gap is small.

Government-backed programs remove the third option. VA's cash-out refinance applies only to a first mortgage on the home you currently own and occupy, and FHA's cash-out program is built the same way around a principal residence. Neither reaches a second home, so the conventional route is the only cash-out route into a vacation home's equity, and every conventional constraint above applies with no fallback.

Six months on title and 12 months on the mortgage being paid off are the seasoning tests Fannie Mae's Selling Guide sets for a cash-out refinance: at least one borrower has to have been on title for at least six months before the new loan disburses, and the mortgage being retired has to be at least 12 months old. If you bought the lake house eight months ago with a mortgage, its cash-out waits four more months while the primary's older mortgage is available today. Occupancy is the other remaining test, and like seasoning it's documentary rather than financial. The guide defines a second home as a one-unit property you occupy for some portion of the year, suitable for year-round use, over which you have exclusive control, and it excludes any property under a rental or timeshare arrangement or a management agreement that controls occupancy. A vacation home under a management agreement that controls when you can use it fails that definition and is underwritten as an investment property, with its own caps and adjustments. Occupancy is a representation you sign, and the terms follow the truth of it, so if the lake house operates as a rental or sits under a management agreement, the right move is to say so upfront and price the file accurately.

The Same $75,000, Run Three Ways

At 6.76%, a new $275,000 first mortgage on the vacation home costs $18,590 a year in interest at the starting balance, against $12,000 a year on the existing $200,000 at 6.0%. The bridge is one multiplication each: $275,000 at 6.76% is $18,590, $200,000 at 6.0% is $12,000, and the difference is $6,590. That $6,590 is the annual cost of getting $75,000 through the second home, and it decomposes into two pieces. The $75,000 of new money costs $5,070 at 6.76%. The other $1,520 is the price of resetting the existing $200,000 from 6.0% to 6.76%, a 0.76 percentage point move applied to a balance you'd already borrowed. Divide $6,590 by $75,000 and the effective rate on the money you wanted is about 8.8%. That figure is the floor for this route, because the survey average is a primary-residence number and the second-home and cash-out adjustments described above push the actual quote higher. The new payment on $275,000 at 6.76% over 30 years runs about $1,785 a month before taxes and insurance.

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A $75,000 second lien on the primary leaves the $300,000 at 3.25% exactly where it is. Priced at the same 6.76% for comparison, the new money costs $5,070 a year, and because nothing else is reset, $5,070 is the entire added cost, an effective 6.76% on the money you wanted. A HELOC prices off prime, at 6.75% in the most recent H.15 release, plus a lender margin, so the real number on a line sits above $5,062.50 a year by whatever the margin adds, and interest-only on $75,000 at the bare index is about $422 a month. A home equity loan prices as a fixed-rate second lien, and its rate depends on your credit and combined loan-to-value, so the honest comparison is to get the fixed rate in writing and run the same multiplication. Either way, the second lien saves the $1,520 reset cost the vacation-home route pays and avoids every second-home adjustment. The offsetting consideration is structural: a HELOC's rate moves with prime and its payment steps up when the draw period ends, while a home equity loan's fixed payment amortizes the full $75,000 over its term and lands above the interest-only figure.

A new $375,000 first mortgage on the primary at 6.76% costs $25,350 a year in interest, against $9,750 on the existing $300,000 at 3.25%. The added cost is $15,600, and $10,530 of it is the reset: $300,000 multiplied by the 3.51 percentage point gap between 3.25% and 6.76%. Only $5,070 of the $15,600 buys the $75,000 you asked for. Divide $15,600 by $75,000 and the effective rate on the new money is about 20.8%, at a primary-residence rate with no second-home adjustment anywhere in it. Cashing out the primary is the route the arithmetic argues hardest against in this example. The 80% cap leaves $180,000 of room on this house, more than any other route offers, and the room is irrelevant, because the cost of using it is the loss of a 3.25% mortgage on $300,000.

The table holds all three routes at a single rate so the reset effect stands alone. This explains why the second lien wins the base case: it's the only route that pays for the $75,000 and for nothing else.

A cash-out refinance originates a $275,000 loan on the vacation home or a $375,000 loan on the primary to deliver the same $75,000, and the charges that scale with loan amount (title insurance, any lender origination charge) are assessed on the full loan. A second lien originates $75,000. Closing costs follow the same shape as the interest math for that reason. The dollar figures vary by state and lender and none is sourced here, but the loan amount the costs attach to is between about 3.7 and 5 times larger on the refinance routes, and that alone favors the second lien on a like-for-like need.

Flip the Rates and the Answer Moves

Reverse the two existing rates and the ranking between the two cash-outs reverses with them. Put the $300,000 primary balance at 6.0% and the $200,000 vacation-home balance at 3.25%, hold everything else constant, and rerun the three routes at the same 6.76%.

Cashing out the primary now costs $7,350 a year in added interest: $300,000 multiplied by the 0.76 point gap is $2,280, plus $5,070 for the new money. The effective rate on the $75,000 falls to about 9.8%, and the loan carries no second-home adjustment and a full 80% cap. Cashing out the vacation home now costs $12,090 a year: $200,000 multiplied by the 3.51 point gap is $7,020, plus the same $5,070. That's about 16.1% on the new money before the second-home adjustments push it higher. The house that was the cheaper cash-out in the base case is the more expensive one here, and the swing occurred because the reset penalty follows the low-rate mortgage wherever it sits.

The second lien on the primary still costs $5,070 at 6.76%, because it resets nothing in either version, and it still ranks first. The gap behind it has narrowed, though, from $10,530 in the base case to $2,280 here, and $2,280 a year is close enough that structure can decide the outcome. If you also carry higher-rate debt you'd consolidate, a 6.0% primary mortgage is a first mortgage you can reset without much regret, and a single new payment at 6.76% that absorbs the 6.0% mortgage, the $75,000, and a balance at credit-card rates can beat a second lien on monthly cash flow. If the $75,000 is the whole need, the second lien keeps the edge. The vacation home doesn't re-enter the comparison in either version. The case for touching it exists only when the primary's mortgage sits far below market and the second home's sits at or above it, which is the base case, and even there the second lien on the primary beat it by $1,520 before adjustments. An AmeriSave loan officer can run the primary-side routes at your actual balances against whatever written quote you hold on the vacation home; the shape of the ranking won't change, only the dollar amounts will.

The Decision Rule: Reset the Mortgage Closest to Market

The first rule: don't reset a first mortgage that sits more than about a point below market to pull cash. The reset penalty is the product of two numbers, the balance you re-price and the gap between its rate and the rate you'd replace it with. On a $200,000 balance, each full percentage point of gap costs $2,000 a year. Spread over a $75,000 need, that $2,000 adds about 2.7 percentage points to the effective rate on the new money. On a $300,000 balance, each point of gap costs $3,000 a year, or 4 points of effective rate on the same $75,000. At a one-point gap on an ordinary balance you've already added several points to the cost of the money you wanted, and the second-home adjustments, where they apply, land on top.

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75% on the second home and 80% on the primary are fixed by the matrix; your balances aren't. The second rule: borrow against the house whose existing rate sits closest to today's rate and whose cap has room. The room has to cover the amount you need plus closing costs, and a house that's 70% financed today has $20,000 of it under the 75% cap at a $400,000 value and $60,000 under the 80% cap at a $600,000 value, neither enough for $75,000 plus costs. Check the room before you price anything, because a route that fails the cap can't be rescued by a good rate.

$5,070 a year, the cost of $75,000 at 6.76% and nothing else, is the floor at the article's single comparison rate, and only the second lien reaches it. The third rule: when both first mortgages sit well below market, borrow through a second lien on the primary. It resets nothing and avoids the second-home adjustments entirely, which is why it's usually the cheapest source of the money. The case against it deserves equal weight, and it's structural rather than mathematical. Either second lien adds a second payment to a household that had one, and the second-lien lender sets its own combined loan-to-value cap and its own pricing, neither of which appears in Fannie Mae's matrix. If the $75,000 is one piece of a larger restructuring, a cash-out on a first mortgage that already sits near market gives you a single fixed payment on everything, and that's the case where the cash-out on the primary earns its closing costs.

Underneath all three rules sits a single question: which mortgage are you willing to reset? A cash-out refinance replaces the first mortgage, restarts its amortization, and re-prices every dollar of the old balance. A second lien leaves the first mortgage's rate, term, and remaining schedule alone. The cash-flow comparison on a two-property file should include the option of leaving both first mortgages exactly as they are, because keeping a 3.25% mortgage intact is a legitimate outcome of running the math.

When the Second Home Doesn't Exist Yet

Fannie Mae's matrix allows a second-home purchase at up to 90% loan-to-value, so a $400,000 vacation home bought with the smallest permitted down payment requires $40,000 at closing plus costs, and that money has to exist on the day you close. If the equity you plan to use is in a house you don't own yet, the comparison in this article collapses to one side, because the property you're buying has no equity to borrow against. A cash-out refinance to buy a second home, a HELOC to buy a second home, or a home equity loan for the same purpose all draw on the primary residence, and the three routes rank the same way they ranked above.

$40,000 pulled through a second lien on the primary costs $40,000 multiplied by the second-lien rate and nothing else, while $40,000 pulled through a cash-out re-prices the entire first mortgage to reach the same figure. The math on the source of the down payment is the same math as above, at a smaller amount. If your primary carries a mortgage far below market, the second lien wins by the full reset cost. If your primary mortgage already sits near market, the cash-out can make sense, particularly if the new loan also consolidates other debt into the single payment. A HELOC has one feature that suits a purchase timeline: the line can be opened before you've found the house and drawn on the day the funds are due, so the money is committed without a payment starting before the purchase closes.

The other side of this decision is that the equity you pull converts a house you own outright, or mostly own, into the collateral for a second property's down payment, and the purchase mortgage on the new house adds a payment on top of the new second lien or the reset first mortgage. Purchase qualification on the new house belongs to the loan officer running that file; my lane is where the down payment comes from and what it costs to raise it. On that question, the primary residence is the only house that can supply it, the second lien is usually the cheaper way to draw it, and the source can be settled in writing before the purchase file starts.

The Bottom Line

I've spent seventeen years on the executive side of national mortgage lenders, most of them on refinances for debt consolidation and equity extraction, and the two-property cash-out question is one of the clearest examples I know of a product request standing in for a cost question. The variables are all in view: the value and balance of each house, the rate on each first mortgage, the 80% and 75% caps, and the rate a new loan would carry today. Each is a specific number, and together they answer which mortgage, if any, you should be willing to reset.

In the example, tapping the vacation home cost about 8.8% on the money before adjustments, resetting a 3.25% primary cost about 20.8%, and a second lien on the primary cost 6.76%. Flip the existing rates and the two cash-outs trade places while the second lien holds its position. Run the same multiplication on your own figures, with the reset cost separated from the cost of the new money, and the ranking will show in the added-interest column. If it points to a second lien, you'll keep the mortgage you'd regret losing. If it points to a cash-out, it'll be on the house whose rate already sits near market.

The objective, over the years you carry the new debt, is a clear and defensible borrowing decision that improves your monthly picture, and at AmeriSave that's the standard the comparison is run against. The math works or it doesn't, and with two houses on the table, the math should be what chooses the house.