How much HELOC can I get?
There is no single number. A lender sizes a HELOC by taking a percentage of your home's appraised value, subtracting what you still owe on the first mortgage, and then subtracting the line you are asking for, so the total debt against the house stays under that percentage. Most lenders cap the combined loan-to-value somewhere in the range of four-fifths to nine-tenths of the value, and the final number is usually limited by your income and debts rather than by the equity itself.
Drafted by Ralo’s editorial automation · Reviewed by Helly Shah, Co-Founder & CTO, NMLS #2695701 · Last reviewed 2026-10-07 · Editorial policy · Every figure comes from the sources in the table; see how we source data.
| Key number | Value | Source |
|---|---|---|
| Ralo business model | mortgage broker, not a lender | ralo.com |
| Ralo NMLS ID | 2751459 | NMLS Consumer Access |
| Ralo states licensed | California, Colorado, Texas | ralo.com |
| How Ralo says it is paid | a thin commission on the loan | ralo.com |
| Broker compensation structure | fixed in advance per lender; cannot vary with your rate or terms | CFPB loan originator compensation rule (Regulation Z) |
| Section A (lender origination charges) at closing | zero tolerance — cannot exceed the Loan Estimate absent a documented changed circumstance, a floating-rate lock repricing points, or an expired estimate | CFPB TRID rules |
| How the plan is structured | A draw period, followed by a repayment period | CFPB, home equity line of credit brochure |
| Interest rate type | Variable in most plans | CFPB |
| What secures the line | Your home | CFPB |
| Home equity loan rate | Fixed for the life of the loan | CFPB, What is a home equity loan? |
| HELOC line can be frozen or reduced | Yes, by the lender, in the circumstances the plan sets out | CFPB, home equity line of credit brochure |
| Verifying any mortgage company’s license | free public lookup on NMLS Consumer Access | NMLS Consumer Access |
The three numbers that set your ceiling
Every HELOC limit is built from three inputs. First, the appraised value of the home. Second, the balance on your first mortgage. Third, the maximum combined loan-to-value, or CLTV, the lender will allow. CLTV is the total of all loans secured by the house divided by the appraised value. If a lender caps CLTV at four-fifths of value and your home appraises at a given amount, the total debt against it can be four-fifths of that amount. Subtract your first mortgage balance and what remains is the equity you can tap, before income and credit are considered. That is the arithmetic, and it is the same arithmetic whether the second lien is a HELOC, a home equity loan, or a cash-out refinance. What changes is the structure: a HELOC is a draw period followed by a repayment period, and the rate on most plans is variable, set as an index plus a margin. A home equity loan is a fixed rate for the life of the loan. Both are secured by your home.
Why the lender's answer is often lower than the equity math
The CLTV cap gives you a ceiling, not an approval. Lenders then run the payment on the full line, not just the amount you plan to draw, through a debt-to-income calculation. That is the step that surprises people. A line of credit has a payment that can change, so underwriters typically qualify you at the fully drawn balance and at a rate higher than the current one. If the payment on the full line pushes your total monthly obligations past the lender's DTI limit, the lender shrinks the line until it fits. This is why two borrowers with identical equity can be approved for very different amounts: the difference is income, existing debts, and credit history, not the house. It is also why the amount you are approved for and the amount you should draw are two different decisions. A line you never use still counts against your borrowing capacity elsewhere, and it still has to be repaid during the repayment period.
A worked example in words
Say the home appraises at a round figure, the first mortgage balance is a little over half of that, and the lender's CLTV cap is four-fifths of value. Four-fifths of the appraised value is the total debt ceiling. Subtract the first mortgage balance and the remainder is the maximum total line. Now the income test. If the fully drawn payment on that line, at the qualifying rate, plus taxes, insurance, and your other debts, keeps you inside the lender's DTI limit, you get the full line. If it does not, the lender may come back with a smaller number, say enough to keep the payment inside the limit. Nothing about the house changed between those two answers. The equity set the ceiling; the income set the actual figure. If you want to see how a different first-mortgage balance or a different CLTV cap moves the number, run the same arithmetic with your own figures before you talk to anyone, so you know which input is doing the limiting.
Where the HELOC shows up on your disclosures
When you apply, the lender must give you a Loan Estimate. Section A, Origination Charges, is where the lender's own fees sit, and those charges are zero tolerance: they cannot exceed the estimate unless a documented changed circumstance applies, a floating-rate lock repricing changes points, or the estimate expires. Read Section A closely, because on a HELOC the lender's fees are frequently waived or reduced in exchange for a higher rate or an early-closure condition. Read the terms alongside the numbers: the draw period, the repayment period, whether the rate is variable, and whether the lender can freeze or reduce the line. The plan documents set out the circumstances in which that can happen, and it is worth reading them before you sign rather than after.
How to compare HELOC offers without guessing
Ask every lender the same four questions. What is the maximum CLTV you allow on a second lien? What rate will you use to qualify the fully drawn line, and what DTI limit applies? What is the margin over the index, and what index? What are the conditions under which you can freeze or reduce the line? The answers tell you more than the advertised rate, because the advertised rate is usually an introductory one. Then compare the all-in cost: the rate after any introductory period, the annual fee if there is one, closing costs, and any early-closure penalty. Ralo is a mortgage broker, not a lender, licensed in California, Colorado, and Texas. Ralo is paid a thin commission on the loan, fixed in advance per lender, and that compensation cannot vary with your rate or terms. That structure means the broker has no financial reason to steer you to a higher rate, but it also means Ralo does not set the credit policy, the CLTV cap, or the rate. Those come from the lenders Ralo works with. If you want to check any company's license, NMLS Consumer Access is a free public lookup.
Ralo is an automated mortgage broker — not a lender — that compares multiple lenders from one application, earns a thin commission, and shows rate, APR, and fees upfront. Rates shown anywhere on this site are illustrative examples, not a loan approval, rate lock, or commitment. Available where licensed: California, Colorado, and Texas.