Compound Interest Calculator
CD 18-month Account from Needham Bank with 3.40% APY and $1,000 minimum deposit



Use or Change These Amounts and Rates

The product CD 18-month Account from Needham Bank with 3.40% APY and $1,000 minimum deposit and a tax rate of 30 compounded annually, with an initial amount of $20,000, after 10 years would have grown your savings to approximately $27,941. The interest earned would be $7,941 and the tax amount on the interest earned would be approximately $2,382.

Please note that this analysis assumes a constant interest rate and doesn't take into account any fees associated with the savings account.

The Results for Needham Bank

Savings Boost of
$5,239 over 10 years
Cash Savings $20,000
Average Interest Earned $320

 
Needham Bank Interest Earned $5,558

 

 

See comparison detail table

This analysis is for demonstrative purposes only and may change should certain assumptions prove incorrect. Savings rates may change and CD rates may not be renewable for the length of the term of the analysis. The difference between the bank rate entered and the average rate may not remain constant throughout the term.

Comparison Detail Table Close X

Average Rate Scenario

Rate:
0.23%
Annual
Interest
Annual Interest
(After Tax)
1 20,000 45 32
2 20,045 45 32
3 20,091 45 32
4 20,136 46 32
5 20,181 46 32
6 20,227 46 32
7 20,273 46 32
8 20,319 46 32
9 20,364 46 32
10 20,410 46 32
TOTAL: $457 $320

Needham Bank Scenario

Rate:
3.40%
Annual
Interest
Annual Interest
(After Tax)
1 20,000 680 476
2 20,680 703 492
3 21,383 727 509
4 22,110 752 526
5 22,862 777 544
6 23,639 804 563
7 24,443 831 582
8 25,274 859 602
9 26,133 889 622
10 27,022 919 643
TOTAL: $7,941 $5,558

Take Action

The accounts below offer some of the best rates in the country can be opened online, and are available nationally. As the calculator shows, changing accounts to earn a higher interest rate can really add up over time.


Recent Rate Changes



Date APY
November 26, 2025 3.40%
March 3, 2025 3.65%
October 15, 2024 3.75%


Featured CD Rates

ONLINE BANKS APY? MIN?

Last change: ↓0.16% on September 18.
3 Month CD.

Last change: ↓0.10% on October 13.

Last change: ↓0.15% on October 13.

Last change: ↓0.15% on November 26.



Customer Reviews for Needham Bank


  • February 14, 2022 |

    I had a personal checking account and a business account. All went well until I sent a polite letter pointing out that it is improper, and not good practice, to make online passwords expire. Why should they, if they are perfectly good and uncompromised? Nor is it proper to prevent me from seeing the new password as I type it (twice). Did I mention that this was a polite letter? I was only trying to be helpful.

    A week later, I got two certified letters cancelling both of my accounts.

  • July 25, 2019 |

    CDs 15 Month Rates

    Excellent bank that usually has great rates on CDs.


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