Compound Interest Calculator
CD 1-year Account from SIGNATURE with 3.88% APY and $500 minimum deposit



Use or Change These Amounts and Rates

The product CD 1-year Account from SIGNATURE with 3.88% APY and $500 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 $29,265. The interest earned would be $9,265 and the tax amount on the interest earned would be approximately $2,780.

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 SIGNATURE

Savings Boost of
$5,699 over 10 years
Cash Savings $20,000
Average Interest Earned $786

 
SIGNATURE Interest Earned $6,486

 

 

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:
0.55%
Annual
Interest
Annual Interest
(After Tax)
1 20,000 110 77
2 20,110 110 77
3 20,220 111 78
4 20,331 111 78
5 20,442 112 78
6 20,554 113 79
7 20,667 113 79
8 20,780 114 80
9 20,894 114 80
10 21,008 115 81
TOTAL: $1,123 $786

SIGNATURE Scenario

Rate:
3.88%
Annual
Interest
Annual Interest
(After Tax)
1 20,000 776 543
2 20,776 806 564
3 21,582 837 586
4 22,419 870 609
5 23,289 904 633
6 24,193 939 657
7 25,132 975 683
8 26,107 1,013 709
9 27,120 1,052 737
10 28,172 1,093 765
TOTAL: $9,265 $6,486

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
September 18, 2025 3.88%
April 4, 2025 4.02%
September 22, 2024 4.00%
August 16, 2024 4.40%
March 14, 2024 4.75%
February 9, 2024 5.00%
October 19, 2023 5.35%
September 22, 2023 5.25%
September 19, 2023 5.10%
August 20, 2023 5.35%


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