The product CD 1-year Account from Greenfield Savings Bank with 3.92% APY and $10 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 $29,378. The interest earned would be $9,378 and the tax amount on the interest earned would be approximately $2,813.
Please note that this analysis assumes a constant interest rate and doesn't take into account any fees associated with the savings account.
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.
| 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 | 112 | 78 |
| 5 | 20,443 | 112 | 79 |
| 6 | 20,555 | 113 | 79 |
| 7 | 20,668 | 113 | 79 |
| 8 | 20,781 | 114 | 80 |
| 9 | 20,895 | 115 | 80 |
| 10 | 21,010 | 115 | 81 |
| TOTAL: | $1,126 | $788 |
| Rate: 3.92% |
Annual Interest |
Annual Interest (After Tax) |
|
|---|---|---|---|
| 1 | 20,000 | 784 | 549 |
| 2 | 20,784 | 815 | 570 |
| 3 | 21,599 | 847 | 593 |
| 4 | 22,445 | 880 | 616 |
| 5 | 23,325 | 914 | 640 |
| 6 | 24,240 | 950 | 665 |
| 7 | 25,190 | 987 | 691 |
| 8 | 26,177 | 1,026 | 718 |
| 9 | 27,203 | 1,066 | 746 |
| 10 | 28,270 | 1,108 | 776 |
| TOTAL: | $9,378 | $6,565 |
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.
| Date | APY |
|---|---|
| September 8, 2025 | 3.92% |
| February 17, 2025 | 4.07% |
| January 27, 2025 | 3.81% |
| October 21, 2024 | 3.50% |
| September 25, 2024 | 3.81% |
| December 18, 2023 | 0.40% |
| ONLINE BANKS | APY? | MIN? | ||
|---|---|---|---|---|
|
|
4.25% |
$25,000 |
Learn More | |
|
Last change: ↓0.16% on September 18. |
||||
|
|
4.20% |
$1,500 |
Learn More | |
|
Last change: ↓0.10% on October 13. |
||||
|
|
4.15% |
$1,000 |
Learn More | |
|
Last change: ↓0.15% on October 13. |
||||
|
|
4.15% |
$500 |
Learn More | |
|
|
4.10% |
$25,000 |
Learn More | |
|
Last change: ↓0.15% on November 26. |
||||