Graduate to Growth
Start small, earn big with a Boost Certificate.
Boost Certificate
1-year APY^Boost Certificate
2-year APY^
Open with only $100 and add anytime
You don’t need a big balance to begin building your future. With a low $100 minimum to open, the Boost Certificate is designed to make saving more accessible. It’s a simple way to take the first step toward bigger goals.
Plus, you can keep adding to your certificate at any time up to $10,000!
Open with a low minimum of $100
Add more money to your certificate anytime
Earn a premium dividend rate
A flexible savings option for people of all ages
Start saving with confidence.
Open your Boost Certificate today and take the first step toward reaching your goals.
-
*APR = Annual Percentage Rate. Rate subject to change. APY accurate as of March 6, 2026. Minimum balance of $100 to open Boost Certificate account and to earn APY. Fees may reduce earnings. Penalty may be imposed for early withdrawal. Additional deposits may be made in amounts of $100 or more. Only one Boost certificate per member, with principal balance not to exceed $10,000. For complete details, see our Member Service Agreement and Our Rates and Service Charge Disclosure.
Boost Certificates
Requirements
- APY- Annual Percentage Yield
- APY accurate as of the date listed below.
- Minimum balance of $100 to open account and to earn APY
- Fees may reduce earnings.
- Penalty may be imposed for early withdrawal.
- Additional deposits may be made in amounts of $100 or more
- Only one Boost certificate per member, with principal balance not to exceed $10,000.
| Certificate Term | Dividend Rate | *APY |
|---|---|---|
|
1 Year |
|
|
|
2 Year |
|
|
Rates effective as of: April 21, 2026
*APY - Annual Percentage Yield
Fees may reduce earnings
Subject to early withdrawal penalties
Terms
Refer to Central One Federal Credit Union's Member Service Agreement
and Our Rates and Service Charges Disclosure
Test Modal
Modal Content
Ea rerum vel molestiae omnis molestias. Et ut officiis aliquam earum et cum deleniti. Rerum temporibus ex cumque doloribus voluptatem alias.
Open Account
Ice Cream Day Dates
| Location | 2026 Dates | Time | Vendor |
|---|---|---|---|
|
Auburn |
June 25, 2026 |
4pm - 6pm |
Trombetta's Farm |
|
Milford |
July 9, 2026 |
4pm - 6pm |
Trombetta's Farm |
|
Shrewsbury |
July 23, 2026 |
4pm - 6pm |
Trombetta's Farm |
|
Westborough |
July 30, 2026 |
4pm - 6pm |
Uhlman's Ice Cream |
|
Northborough |
August 27, 2026 |
4pm - 6pm |
Trombetta's Farm |
Food Truck Dates
Check back for the 2026 dates and times
Adjustable Rate Mortgages
-
The 15/5 Adjustable Rate Mortgage offers a fixed APR of for the first 15 years then adjusts to a new rate every 5 years.
Term: Available for terms up to 40 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30 year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies, or we will not be able to process your application. Payments do not include taxes and insurance.
-
The 15/5 Adjustable Rate Mortgage offers a fixed APR of for the first 15 years then adjusts to a new rate every 5 years.
Term: Available for terms up to 40 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30 year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies or we will not be able to process your application. Payments do not include taxes and insurance.
-
The 10/5 Adjustable Rate Mortgage offers a fixed APR of for the first 10 years then adjusts to a new rate every 5 years.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30 year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies or we will not be able to process your application. Payments do not include taxes and insurance.
-
The 10/5 Adjustable Rate Mortgage offers a fixed APR of for the first 10 years then adjusts to a new rate every 5 years.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30-year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies, or we will not be able to process your application.
-
The 5/1 Adjustable Rate Mortgage offers a fixed APR of for the first 5 years then adjusts to a new rate every 1 year.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30-year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies or we will not be able to process your application.
-
The 5/1 Adjustable Rate Mortgage offers a fixed APR of for the first 5 years then adjusts to a new rate every 1 year.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30 year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies, or we will not be able to process your application.
-
The 3/3 Adjustable Rate Mortgage offers a fixed APR of for the first 3 years then adjusts to a new rate every 3 years.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30 year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies or we will not be able to process your application.
-
The 3/3 Adjustable Rate Mortgage offers a fixed APR of for the first 3 years then adjusts to a new rate every 3 years.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30 year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies or we will not be able to process your application.
-
The 1/1 Adjustable Rate Mortgage offers a fixed APR of for the first 1 year then adjusts to a new rate every 1 year.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30-year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies or we will not be able to process your application.
-
The 1/1 Adjustable Rate Mortgage offers a fixed APR of for the first 1 year then adjusts to a new rate every 1 year.
Term: Available for terms up to 30 years.
Rate caps: 2% per adjustment and 5% over the initial rate for the life of the loan.
Benefits: Central One’s ARMs often have lower down payment requirements, lower initial monthly payments and lower initial APRs than a 30 year fixed rate.
Calculate your monthly payment using the ARM Mortgage Calculator
Prior to applying, please make sure your credit is not frozen by the credit reporting agencies or we will not be able to process your application.
Order Checks for your Home Equity Line of Credit (HELOC)
You can order checks through this link Order Checks or by calling 800-355-8123. You will need to input your account number and the Central One routing number (211387169). As a security precaution, you will not be able to change the address on the checks and all orders will be sent to the address of record on the account.
Leaving Our Website
You are leaving our website and linking to a third-party website not operated by us. We do not directly offer, service, or guarantee products or information provided by third- party vendors or third-party linked sites.