If you’ve started shopping for a HELOC, you’ve probably run into a frustrating wall: most big banks only let you borrow up to 80% of your home’s value. That leftover 10% can feel like money you can see but can’t touch — especially if you want to renovate or consolidate debt without refinancing a low-rate first mortgage.
The good news is that 90% CLTV HELOCs do exist. The catch is they come with specific requirements, and not every lender offers them. Here’s an honest look at how to reach 90%, who qualifies, and what the tradeoffs are.
What CLTV Actually Means
CLTV stands for combined loan-to-value. It measures your total mortgage debt — your existing first mortgage plus the new HELOC — against your home’s appraised value.
Here’s the formula in plain terms:
- (Existing mortgage balance + new HELOC) ÷ home’s appraised value = CLTV
So if your home is worth $500,000 and you want a total of $450,000 in combined borrowing, that’s a 90% CLTV. The higher the percentage, the more of your equity you’re accessing — and the more risk the lender takes on. That’s why CLTV limits exist, and why crossing certain thresholds narrows your options. For a deeper look, our guide on how much equity you need breaks the math down further.
Why Most Lenders Stop at 80%
The reason 90% is harder to find comes down to risk.
When a lender lets you borrow up to 90% of your home’s value, they’re leaving a much thinner equity cushion. If home values dip or the borrower runs into trouble, there’s less margin protecting the lender’s position. Most large national banks simply choose to cap at 80% to keep that cushion comfortable.
That’s why much of the general advice you’ll read says “most lenders cap at 80%.” It’s accurate for the big banks. But it’s not the whole picture — because some lenders do go to 90% for the right borrower.
Yes — 90% CLTV Is Available for Qualified Borrowers
Here’s the part most homeowners don’t realize: a 90% CLTV HELOC is available on a primary residence for well-qualified borrowers.
The key phrase is “well-qualified.” Reaching 90% generally requires a stronger overall profile than an 80% loan does. In practice, that typically means:
- A credit score of around 700 or higher
- A manageable debt-to-income ratio, generally under 43-45%
- Documented, stable income
- A primary residence (the highest-CLTV tier is reserved for owner-occupied homes)
For borrowers who meet those criteria, that extra 10% of borrowing capacity can be the difference between fully funding a project and coming up short — without disturbing a low-rate first mortgage.
How Property Type Affects Your Maximum CLTV
One of the most important things to understand is that 90% isn’t a universal number — it depends heavily on how the property is used.
Maximum CLTV generally breaks down like this by occupancy:
- Primary residence: the highest CLTV tier, up to 90% for qualified borrowers
- Second home: typically lower, often capped around 80%
- Investment property: the most conservative, frequently in the 70-80% range depending on credit profile
The logic is consistent: lenders view a primary residence as the lowest risk, because borrowers are most motivated to protect the home they actually live in. A second home or investment property carries more risk, so the maximum CLTV drops accordingly. If you’re borrowing against anything other than your primary home, plan for a lower ceiling than 90%.
The Tradeoff — Higher CLTV Usually Means Higher Cost
Reaching 90% CLTV comes with an honest tradeoff worth understanding upfront: it typically costs a bit more.
Because a higher CLTV represents more risk to the lender, that risk is usually reflected in the pricing. Borrowing at 90% CLTV generally carries a somewhat higher rate than borrowing at 80% or below, and the qualification requirements tend to be stricter. This is simply how risk-based pricing works — the more of your equity you tap, the thinner the lender’s cushion, and the pricing adjusts to match. It’s the same principle that shapes pricing across credit tiers.
That doesn’t make 90% a bad choice. For many borrowers, accessing the additional equity is well worth a modestly higher rate. The point is simply to go in with clear expectations rather than assuming 90% will price identically to 80%.
When Reaching for 90% Makes Sense
A 90% CLTV HELOC can be the right move when:
- You need the additional borrowing capacity to fully fund your goal
- You have a low-rate first mortgage you don’t want to disturb through a refinance
- You have the credit profile and income to qualify for the best available terms
- The value of accessing that extra equity outweighs the modestly higher rate
- You’re borrowing against your primary residence, where the highest CLTV is available
When to Think Twice
Reaching for maximum CLTV isn’t always the best call. It may be worth reconsidering when:
- You’d be stretching your budget to handle the payments, especially when the draw period ends
- You don’t actually need the full amount and are borrowing it just because it’s available
- Leaving more equity in the home would give you a more comfortable financial cushion
- A lower CLTV would meaningfully improve your rate and you don’t need the extra funds
Borrowing to 90% leaves a thin equity margin. That’s fine when there’s a clear purpose and a solid repayment plan, but it deserves genuine thought rather than reaching for the maximum by default.
Real Borrower Scenario
A homeowner came in wanting to fund a major renovation. His home was worth about $600,000, and he had a first mortgage balance of roughly $360,000 at a low rate he definitely didn’t want to lose by refinancing.
At the 80% cap most big banks offered, his math looked like this:
- $600,000 × 80% = $480,000 maximum total borrowing
- $480,000 − $360,000 existing mortgage = $120,000 available
But his renovation budget was closer to $180,000, so 80% left him well short. He’d been told by two banks that $120,000 was all he could access.
Because he had a strong credit profile and it was his primary residence, he qualified for 90% CLTV:
- $600,000 × 90% = $540,000 maximum total borrowing
- $540,000 − $360,000 existing mortgage = $180,000 available
That extra tier of borrowing capacity fully funded his project without touching his low-rate first mortgage. He accepted a modestly higher rate for the higher CLTV — a tradeoff that made clear sense given it was the difference between completing the renovation and leaving it half-finished.
Want to Know What CLTV You Qualify For?
A 90% CLTV HELOC can unlock meaningfully more of your equity than the 80% cap most big banks offer — but it depends on your credit profile, your property type, and your overall financial picture. The only way to know your real number is to look at your specific situation.
If you want to find out what CLTV and borrowing amount you may qualify for, submit your information through our contact page and I’ll review your scenario directly.