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CALCULATOR
Mortgage Estimation Calculator
How It Works
When you’re thinking about a new mortgage, start with what will impact you the most day-to-day: your monthly payment. This mortgage estimator shows you the best case scenario for a mortgage, beginning with your preferred monthly payment.
Enter your ideal monthly payment, potential down payment, preferred loan term, and interest rate. You’ll see the maximum mortgage you can afford within those parameters.
How do you estimate a mortgage payment on your own?
The key to estimating a mortgage payment on your own is understanding all the elements that contribute to a mortgage. Here’s a list of all the components and why they matter:
Loan Principal: What Is It and How Is It Decided?
The principle of a loan is only the amount of money you initially borrow from a lender. This does not include the amount of interest that will accrue or be charged to you over the life of the loan. Every payment you make is essentially divided into two parts: the principal and the interest. The loan’s principal is gradually paid down over time.
Interest Rates and How They’re Set
Interest is calculated as a percentage of the mortgage or loan principal. This percentage is set by your lender based on a variety of factors including the influence of The Federal Reserve—the central banking system of the United States who maintains stability by supervising and regulating banks and conducting monetary policy—as well as the personal financial standing of a borrower:
- Influence of the Federal Reserve on Interest Rates: Though the Federal Reserve does not directly decide the interest rate for loans and mortgages, they can influence them by adjusting the federal funds rate or the interest rate that banks in the US charge each other to borrow or lend money which in turn sets a basis for many other interest rates in the country.
- How Personal Financial Standing Affects Rates: Interest rates are set on a borrowing scale but a borrower’s credit score and net worth can improve or worsen their interest rates. For example, someone with a higher credit score could potentially earn a lower interest rate on their mortgage than someone with a lower credit score.
How Does Loan Term Affect a Monthly House Payment?
A buyer’s loan term directly affects the number of payments a buyer will make, thus establishing the amount they need to pay each month over the life of the loan. This number can be found by taking the loan term in years and multiplying it by 12. Naturally, the shorter the loan term, the more a borrower will need to pay each month as they will have less time to pay the principal back.
What Other Costs Affect a Monthly Mortgage Payment?
The initial cost of a mortgage and all the elements mentioned above are only the start. It’s important to keep in mind that there are other components that will increase the amount you pay on a property each month. Two of the main ones are listed below:
- Property Taxes and Insurance: Property taxes are determined by the value of a property and its location’s local tax rate. Insurance however is determined based on a variety of factors including location, home size and value, the home’s condition and much more. Homeowner’s insurance can also differ by state so it might be best to look up average property tax and insurance rates for your state to add those into your final calculation for monthly mortgage payments. Both these components are often included in the monthly payment but are not part of the principal and interest calculation.
- Private Mortgage Insurance (PMI): Private Mortgage Insurance only applies to a buyer who is putting less than 20% of the loan’s principal down in the initial agreement. Consider determining whether or not you’ll need to pay a PMI and add that to the potential monthly cost of any property as well.
Understanding the loan principal and the true scope of how much a mortgage will cost you each month is crucial before you dive into signing that loan agreement. Be sure you know how much you truly owe and budget correctly for the monthly costs.
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.
Posted In: Home
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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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