Deciding

How much can you actually borrow?

Most homeowners underestimate this badly, usually because they are thinking about what they owe rather than what the house is now worth. Here is the calculation lenders actually run.

QuoteFlash editorial ยท Updated August 2026

There is one number that governs almost everything, and it has an unglamorous name: combined loan to value, usually shortened to CLTV. It is the total of everything secured against your home, divided by what your home is worth.

Lenders set a ceiling on that percentage. Most cap it somewhere in the eighties for a primary residence, though the exact figure varies by lender, by product, and by your credit profile. Some go higher for strong borrowers. Some go lower for investment properties or unusual homes.

The calculation, worked through

Say your home appraises at $450,000 and you owe $290,000. At an 85% ceiling, the maths runs like this.

A $450,000 home with $290,000 owed

Illustrative example at an 85% limit. Your lender's limit will differ.

Appraised value$450,000
85% of value, the ceiling$382,500
Less your current mortgage balance$290,000
Potentially available to you$92,500

Note what drives the answer. Not what you paid for the house, and not how much you have paid down. What it is worth today, minus what you still owe. In a market like Charlotte, where values have moved substantially since 2020, that difference is often much larger than people assume.

Most people calculate their equity using the price they paid. The lender calculates it using what the house is worth now. Those two numbers have drifted a long way apart.

Being approved for it is a separate question

CLTV tells you the maximum the collateral supports. It does not tell you what you will be approved for. Three other things matter.

1Your credit profile. Stronger credit generally means a higher permitted CLTV and better pricing. Weaker credit can mean a lower ceiling, a higher rate, or both.
2Your debt to income ratio. Lenders look at your total monthly obligations against your gross income. You can have plenty of equity and still be declined on income, which surprises people who assume the house is doing all the work.
3The appraisal. Your estimate, your neighbour's sale price, and the online valuation are all inputs. The appraisal is the number that counts, and it is the one variable you cannot control.

What moves your limit in your favour

Paying down revolving balances before applying can help meaningfully, since it improves both your credit utilisation and your debt to income ratio. So can documenting income that is not obvious from a W-2, such as bonus or self-employment income with a two year history.

It is also worth asking about products with different limits. Some lenders offer higher CLTV on a fixed second lien than on a line of credit, or the reverse. If you are close to a ceiling, the product choice can be the difference between yes and no.

One thing worth saying plainly

The maximum available to you is not a target. It is a boundary. Borrowing to the ceiling leaves nothing between you and a market downturn, and equity you do not draw is not wasted, it is simply still yours.

Find out what your number actually is.

A licensed local loan officer will run it properly, with no credit pull to get started.

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This guide is general educational information and is not financial, legal, or tax advice. Figures shown are illustrative and are not an offer, quote, or commitment to lend. QuoteFlash Group LLC is a marketing and referral service, not a lender, mortgage broker, or mortgage loan originator. Limits, rates, and approval are set by the lending partner and vary by borrower, property, and credit. Equal Housing Opportunity.