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CALCULATOR
HELOC Calculator
How It Works
A HELOC (Home Equity Line of Credit) is a line of credit that allows you to tap into your home’s equity and borrow against it.
This calculator will help you estimate the limit you could be approved for. Start by entering the value of your home. Next, enter the outstanding balance (what you have left to pay including interest) on your mortgage. Finally, adjust the LTV ratio to see your potential HELOC. The LTV ratio is a percentage, generally 80-90%, that is determined by your lender.
What is a HELOC loan?
A HELOC, or Home Equity Line of Credit, is a revolving line of credit that uses your home’s equity as collateral. This means you can borrow money repeatedly against the value of your home (specifically, the amount you’d gain after selling it), as long as you repay what you borrow before accessing more. Think of it like a credit card backed by your house: you can draw funds as needed during the draw period (usually 5–10 years), and repay over a longer repayment period (often 10–20 years).
HELOC Eligibility
There are a couple factors you have to keep in mind when looking to take out a HELOC. Like other loans/credit lines, lenders typically look at your credit score, debt-to-income ration, and the amount of equity you have in your home. The rule of thumb is that you should have roughly 15-20% equity in your home, a credit score of 620 or higher, and a steady/reliable income.This eligibility can vary per lender, though, so don’t forget to shop around!
How to calculate my HELOC payment?
With a HELOC, your payments can bounce around a bit. It all depends on how much cash you’ve actually taken out, what the interest rate is doing (since it often changes), and whether you’re still in the early ‘borrowing’ stage or the later ‘paying it back’ stage. When you’re just borrowing, you might only have to pay the interest. But once it’s time to really pay it off, you’ll be covering both the amount you borrowed and the interest. Good news is, a lot of financial institutions have online tools where you can play around with the numbers to get an idea of what your payments might look like based on how much you’ve used and the current interest rate.
Cash Out Refinance vs. HELOC
A cash-out refinance is exactly that, it gives you cash back for the equity in your home. The catch? It replaces your existing mortgage with a new, larger loan and gives you the difference in cash. A HELOC, on the other hand, is a separate line of credit you can draw from as needed that you have to pay back before drawing more.
There’s also a difference in rates/closing costs associated with both. While a cash-out refinance may come with a fixed rate and higher closing costs since it’s essentially a whole new mortgage loan, HELOCs typically have variable rates and lower upfront costs.
HELOC vs. Home Equity Loan
Okay, so both a home equity loan and a HELOC let you tap into the money tied up in your house. But here’s the deal: a home equity loan is like getting one big chunk of cash right away, and your interest rate and monthly payments stay the same. A HELOC is a bit different—it’s more like a credit card. You can borrow money whenever you need it, and the interest rate usually changes. Plus, during the first part, you mostly just pay interest on whatever you’ve actually borrowed.
Disclaimer
While we hope you find this content useful, it is only intended to serve as a starting point. Your next step is to speak with a qualified, licensed professional who can provide advice tailored to your individual circumstances. Nothing in this article, nor in any associated resources, should be construed as financial or legal advice. Furthermore, while we have made good faith efforts to ensure that the information presented was correct as of the date the content was prepared, we are unable to guarantee that it remains accurate today.Neither Banzai nor its sponsoring partners make any warranties or representations as to the accuracy, applicability, completeness, or suitability for any particular purpose of the information contained herein. Banzai and its sponsoring partners expressly disclaim any liability arising from the use or misuse of these materials and, by visiting this site, you agree to release Banzai and its sponsoring partners from any such liability. Do not rely upon the information provided in this content when making decisions regarding financial or legal matters without first consulting with a qualified, licensed professional.
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Lost or Stolen Card?
We’re here to help. If your card has been misplaced or stolen, we’ll act quickly to protect your account. You can report a missing card in the following ways:
Online and Mobile Banking
Log in and follow these three easy steps:
- From the menu, select Tools
- Select Card Manager
- Report your card as Lost or Stolen*
By phone or at a Grow store
Call 800.839.6328 to speak to a team member or let us know in person at any Grow store.Notice: Taking these steps will immediately cancel your card to prevent unauthorized transactions. If you find your card later after reporting it lost or stolen, it cannot be reactivated.
*The selected card will be canceled and removed from Manage Cards when it is reported as lost. Once your new card has been issued, it will be available in Manage Cards. The replacement card will have a new card number. Your replacement card will be sent to the mailing address on your account, and you should receive it within 7 to 10 business days.
How to Find Your Routing & Account Numbers
When you make a payment online, by phone or on a mobile device, you may be asked for our routing number and your checking account number. Credit unions and banks use these numbers to identify accounts and make sure money gets where it’s supposed to be. You’ll also need to provide your routing and checking account numbers for:
- Direct deposits
- Electronic checks
- Military allotments
- Wire transfers
Where to Find Your Routing & Checking Account Numbers
Your personal checks include both our routing number and your account number, as shown on the Grow check example below.

Where to Find Your Checking Account Number in Grow Online and Mobile Banking
If you don’t have a physical check on hand, you can also locate your Checking Account Number for Electronic Transactions in Grow Online and Mobile Banking.*
Here’s how to find it:
- In the Grow Mobile Banking app, select your checking account, then tap Show Details in the top right corner.
- In Grow Online Banking, select your checking account, then click Account Details.
Don’t have a Grow check or Online Banking? No worries.
Visit any Grow store or call us and ask for a Direct Deposit Form. It lists both your routing number and checking account number.
Making a Loan Payment
When it comes to making payments, we try to make it as painless as possible to pay your loan every month. We have several different ways to pay, including convenient online options.
Pay Online
You have two ways to pay online by transferring funds from another bank or credit union.
- Grow Online Banking (Preferred payment method for any loan)
This is the simplest way to pay your loan. You can make one-time payments or set up automatic recurring payments in Grow Online Banking. Once you log in, select “Transfer/Payments” from the menu. If you’re not enrolled in Grow Online Banking yet, you can set up your account in just a few minutes.
Log In
- Debit Card or ACH (Available for auto, personal loans and HELOCs)
Note: ACH and debit card payments are not available for credit cards or most mortgages, except HELOCs.
We accept ACH payments with no additional fees, consumer Mastercard® and Visa® debit cards with a convenience fee of $4.95, or commercial Mastercard® and Visa® debit cards with a convenience fee of 2.95% of the payment amount. To get started with an online ACH or debit card payment, select Pay Now below.
Pay Now
Pay by Mail
You can also pay any Grow loan by check through the mail. Please remember to include your account number and Grow loan number on the check. (For credit card payments, please do not write your 16-digit credit card number on the check, which can cause a delay in processing the payment.)
Address for auto, credit card, personal loan and HELOC payments:
Grow Financial Federal Credit Union
P.O. Box 75466
Chicago, IL 60675-5466Address for personal first or second mortgages and home equity payments:
Grow Financial Federal Credit Union
P.O. Box 11733
Newark, NJ 07101-4733You Are About To Leave GrowFinancial.org
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