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Comparison of Deposit Account from CORNERSTONE with 0.55% - December 2025


Long-Term Analysis of GREATER IOWA with 0.90% APY and ROCK VALLEY with 0.10% APY and CORNERSTONE with 0.55% APY and COMMONWEALTH with 1.40% APY and GARDINER with 0.10% APY and Red River State Bank with 0.55% APY and First Savings Bank with 0.35% APY

This analysis is for demonstrative purposes only. Savings rates may go up or down, and CD rates may not be renewable for the length of the term of the analysis.

You May Choose More Savings or CD Products From Among these Popular Products to Compare

 
$
PRODUCT
BANK
APY
STATE
AMOUNT
TERM
BANK TYPE
VS.NAT.AV.
MIN
  • 1
    LOCAL CD
    GREATER IOWA
    0.90%
    -
    $50,000
    60 Month
    Credit Union
    0.98x (National Avg. - 0.92%)
    $10,000
     
    SCENARIO
    Year Rate
    0.90%    		 Annual
    Interest    		 Annual Interest
    (After Tax)
    1 50,000 450 315
    2 50,450 454 318
    3 50,904 458 321
    4 51,362 462 324
    5 51,824 466 326
    6 52,291 471 329
    7 52,761 475 332
    8 53,236 479 335
    9 53,715 483 338
    10 54,199 488 341
    11 54,687 492 345
    12 55,179 497 348
    13 55,675 501 351
    14 56,177 506 354
    15 56,682 510 357
    16 57,192 515 360
    17 57,707 519 364
    18 58,226 524 367
    19 58,750 529 370
    20 59,279 534 373
    TOTAL $9,813 $6,869
  • 2
    LOCAL MONEY MARKET
    ROCK VALLEY
    0.10%
    -
    $50,000
    N.A.
    Credit Union
    0.11x (National Avg. - 0.92%)
    $2,500
     
    SCENARIO
    Year Rate
    0.10%    		 Annual
    Interest    		 Annual Interest
    (After Tax)
    1 50,000 50 35
    2 50,050 50 35
    3 50,100 50 35
    4 50,150 50 35
    5 50,200 50 35
    6 50,251 50 35
    7 50,301 50 35
    8 50,351 50 35
    9 50,401 50 35
    10 50,452 50 35
    11 50,502 51 35
    12 50,553 51 35
    13 50,603 51 35
    14 50,654 51 35
    15 50,705 51 35
    16 50,755 51 36
    17 50,806 51 36
    18 50,857 51 36
    19 50,908 51 36
    20 50,959 51 36
    TOTAL $1,010 $707
  • 3
    LOCAL CD
    CORNERSTONE
    0.55%
    -
    $50,000
    12 Month
    Credit Union
    1.01x (National Avg. - 0.55%)
    $100,000
     
    SCENARIO
    Year Rate
    0.55%    		 Annual
    Interest    		 Annual Interest
    (After Tax)
    1 50,000 275 193
    2 50,275 277 194
    3 50,552 278 195
    4 50,830 280 196
    5 51,109 281 197
    6 51,390 283 198
    7 51,673 284 199
    8 51,957 286 200
    9 52,243 287 201
    10 52,530 289 202
    11 52,819 291 203
    12 53,110 292 204
    13 53,402 294 206
    14 53,695 295 207
    15 53,991 297 208
    16 54,288 299 209
    17 54,586 300 210
    18 54,886 302 211
    19 55,188 304 212
    20 55,492 305 214
    TOTAL $5,797 $4,058
  • 4
    LOCAL CD
    COMMONWEALTH
    1.40%
    -
    $50,000
    60 Month
    Credit Union
    1.52x (National Avg. - 0.92%)
    $10,000
     
    SCENARIO
    Year Rate
    1.40%    		 Annual
    Interest    		 Annual Interest
    (After Tax)
    1 50,000 700 490
    2 50,700 710 497
    3 51,410 720 504
    4 52,130 730 511
    5 52,859 740 518
    6 53,599 750 525
    7 54,350 761 533
    8 55,111 772 540
    9 55,882 782 548
    10 56,665 793 555
    11 57,458 804 563
    12 58,262 816 571
    13 59,078 827 579
    14 59,905 839 587
    15 60,744 850 595
    16 61,594 862 604
    17 62,456 874 612
    18 63,331 887 621
    19 64,217 899 629
    20 65,117 912 638
    TOTAL $16,028 $11,220
  • 5
    LOCAL SAVINGS
    GARDINER
    0.10%
    -
    $50,000
    N.A.
    Credit Union
    0.44x (National Avg. - 0.23%)
    $0
     
    SCENARIO
    Year Rate
    0.10%    		 Annual
    Interest    		 Annual Interest
    (After Tax)
    1 50,000 50 35
    2 50,050 50 35
    3 50,100 50 35
    4 50,150 50 35
    5 50,200 50 35
    6 50,251 50 35
    7 50,301 50 35
    8 50,351 50 35
    9 50,401 50 35
    10 50,452 50 35
    11 50,502 51 35
    12 50,553 51 35
    13 50,603 51 35
    14 50,654 51 35
    15 50,705 51 35
    16 50,755 51 36
    17 50,806 51 36
    18 50,857 51 36
    19 50,908 51 36
    20 50,959 51 36
    TOTAL $1,010 $707
  • 6
    LOCAL CD
    Red River State Bank
    0.55%
    -
    $50,000
    12 Month
    Bank
    1.01x (National Avg. - 0.55%)
    $1,000
     
    SCENARIO
    Year Rate
    0.55%    		 Annual
    Interest    		 Annual Interest
    (After Tax)
    1 50,000 275 193
    2 50,275 277 194
    3 50,552 278 195
    4 50,830 280 196
    5 51,109 281 197
    6 51,390 283 198
    7 51,673 284 199
    8 51,957 286 200
    9 52,243 287 201
    10 52,530 289 202
    11 52,819 291 203
    12 53,110 292 204
    13 53,402 294 206
    14 53,695 295 207
    15 53,991 297 208
    16 54,288 299 209
    17 54,586 300 210
    18 54,886 302 211
    19 55,188 304 212
    20 55,492 305 214
    TOTAL $5,797 $4,058
  • 7
    LOCAL CD
    First Savings Bank
    0.35%
    -
    $50,000
    12 Month
    Bank
    0.64x (National Avg. - 0.55%)
    $10,000
     
    SCENARIO
    Year Rate
    0.35%    		 Annual
    Interest    		 Annual Interest
    (After Tax)
    1 50,000 175 123
    2 50,175 176 123
    3 50,351 176 123
    4 50,527 177 124
    5 50,704 177 124
    6 50,881 178 125
    7 51,059 179 125
    8 51,238 179 126
    9 51,417 180 126
    10 51,597 181 126
    11 51,778 181 127
    12 51,959 182 127
    13 52,141 182 128
    14 52,323 183 128
    15 52,507 184 129
    16 52,690 184 129
    17 52,875 185 130
    18 53,060 186 130
    19 53,245 186 130
    20 53,432 187 131
    TOTAL $3,619 $2,533

    All calculations are for demonstration purposes only.

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