根據網上的資料, 比較新舊稅法下,家庭聯合報稅條件下,列出不同的可征稅收入(taxable income)情況下的納稅額.
表1.
2018 Income Tax Brackets
| Rate | Individuals | Married Filing Jointly |
| 10% | Up to $9,525 | Up to $19,050 |
| 12% | $9,526 to $38,700 | $19,051 to $77,400 |
| 22% | 38,701 to $82,500 | $77,401 to $165,000 |
| 24% | $82,501 to $157,500 | $165,001 to $315,000 |
| 32% | $157,501 to $200,000 | $315,001 to $400,000 |
| 35% | $200,001 to $500,000 | $400,001 to $600,000 |
| 37% | over $500,000 | over $600,000 |
表2. 2018年的老稅表
3, 新舊稅法下的納稅額, 注意收入是Taxable income。
最後兩欄是眾議院最早通過的版本中不同的應稅收入下的交稅額及其與2018老稅法的差額, 把它們列出, 可以看到與最初版本比較, 最終版本的稅率有很大的變化（下降）。本來一部分加稅的家庭, 最終可能得到一定程度的減稅。
| Taxable income | 2018 | 2018 | difference | house original bill | difference |
| 老稅法 | 新稅法 | ||||
| 10,000 | 1,000 | 1,000 | 0 | 1,200 | 200 |
| 20,000 | 2,047 | 2,019 | -28 | 2,400 | 353 |
| 30,000 | 3,547 | 3,219 | -328 | 3,600 | 53 |
| 40,000 | 5,047 | 4,419 | -628 | 4,800 | -247 |
| 50,000 | 6,547 | 5,619 | -928 | 6,000 | -547 |
| 60,000 | 8,047 | 6,819 | -1,228 | 7,200 | -847 |
| 70,000 | 9,547 | 8,019 | -1,528 | 8,400 | -1,147 |
| 80,000 | 11,307 | 9,479 | -1,828 | 9,600 | -1,707 |
| 90,000 | 13,807 | 11,679 | -2,128 | 10,800 | -3,007 |
| 100,000 | 16,307 | 13,879 | -2,428 | 13,300 | -3,007 |
| 110,000 | 18,807 | 16,079 | -2,728 | 15,800 | -3,007 |
| 120,000 | 21,307 | 18,279 | -3,028 | 18,300 | -3,007 |
| 130,000 | 23,807 | 20,479 | -3,328 | 20,800 | -3,007 |
| 140,000 | 26,307 | 22,679 | -3,628 | 23,300 | -3,007 |
| 150,000 | 28,807 | 24,879 | -3,928 | 25,800 | -3,007 |
| 160,000 | 31,423 | 27,079 | -4,344 | 28,300 | -3,123 |
| 170,000 | 34,223 | 29,379 | -4,844 | 30,800 | -3,423 |
| 180,000 | 37,023 | 31,779 | -5,244 | 33,300 | -3,723 |
| 190,000 | 39,823 | 34,179 | -5,644 | 35,800 | -4,023 |
| 200,000 | 42,623 | 36,579 | -6,044 | 38,300 | -4,323 |
| 210,000 | 45,423 | 38,979 | -6,444 | 40,800 | -4,623 |
| 220,000 | 48,223 | 41,379 | -6,844 | 43,300 | -4,923 |
| 230,000 | 51,023 | 43,779 | -7,244 | 45,800 | -5,223 |
| 240,000 | 53,925 | 46,179 | -7,746 | 48,300 | -5,625 |
| 250,000 | 57,225 | 48,579 | -8,646 | 50,800 | -6,425 |
| 260,000 | 60,525 | 50,979 | -9,546 | 53,300 | -7,225 |
| 270,000 | 63,825 | 53,379 | -10,446 | 56,800 | -7,025 |
| 280,000 | 67,125 | 55,779 | -11,346 | 60,300 | -6,825 |
| 290,000 | 70,425 | 58,179 | -12,246 | 63,800 | -6,625 |
| 300,000 | 73,725 | 60,579 | -13,146 | 67,300 | -6,425 |
| 310,000 | 77,025 | 62,979 | -14,046 | 70,800 | -6,225 |
| 320,000 | 80,325 | 65,779 | -14,546 | 74,300 | -6,025 |
| 330,000 | 83,625 | 68,979 | -14,646 | 77,800 | -5,825 |
| 340,000 | 86,925 | 72,179 | -14,746 | 81,300 | -5,625 |
| 350,000 | 90,225 | 75,379 | -14,846 | 84,800 | -5,425 |
| 360,000 | 93,525 | 78,579 | -14,946 | 88,300 | -5,225 |
| 370,000 | 96,825 | 81,779 | -15,046 | 91,800 | -5,025 |
| 380,000 | 100,125 | 84,979 | -15,146 | 95,300 | -4,825 |
| 390,000 | 103,425 | 88,179 | -15,246 | 98,800 | -4,625 |
| 400,000 | 106,725 | 91,379 | -15,346 | 102,300 | -4,425 |
| 410,000 | 110,025 | 94,879 | -15,146 | 105,800 | -4,225 |
| 420,000 | 113,325 | 98,379 | -14,946 | 109,300 | -4,025 |
| 430,000 | 116,726 | 101,879 | -14,847 | 112,800 | -3,926 |
| 440,000 | 120,226 | 105,379 | -14,847 | 116,300 | -3,926 |
| 450,000 | 123,726 | 108,879 | -14,847 | 119,800 | -3,926 |
| 460,000 | 127,226 | 112,379 | -14,847 | 123,300 | -3,926 |
| 470,000 | 130,726 | 115,879 | -14,847 | 126,800 | -3,926 |
| 480,000 | 134,226 | 119,379 | -14,847 | 130,300 | -3,926 |
| 490,000 | 138,184 | 122,879 | -15,305 | 133,800 | -4,384 |
| 500,000 | 142,144 | 126,379 | -15,765 | 137,300 | -4,844 |
| 510,000 | 146,104 | 129,879 | -16,225 | 140,800 | -5,304 |
| 520,000 | 150,064 | 133,379 | -16,685 | 144,300 | -5,764 |
| 530,000 | 154,024 | 136,879 | -17,145 | 147,800 | -6,224 |
| 540,000 | 157,984 | 140,379 | -17,605 | 151,300 | -6,684 |
| 550,000 | 161,944 | 143,879 | -18,065 | 154,800 | -7,144 |
| 560,000 | 165,904 | 147,379 | -18,525 | 158,300 | -7,604 |
| 570,000 | 169,864 | 150,879 | -18,985 | 161,800 | -8,064 |
| 580,000 | 173,824 | 154,379 | -19,445 | 165,300 | -8,524 |
| 590,000 | 177,784 | 157,879 | -19,905 | 168,800 | -8,984 |
| 600,000 | 181,744 | 161,379 | -20,365 | 172,300 | -9,444 |
| 610,000 | 185,704 | 165,079 | -20,625 | 175,800 | -9,904 |
| 620,000 | 189,664 | 168,779 | -20,885 | 179,300 | -10,364 |
| 630,000 | 193,624 | 172,479 | -21,145 | 182,800 | -10,824 |
| 640,000 | 197,584 | 176,179 | -21,405 | 186,300 | -11,284 |
| 650,000 | 201,544 | 179,879 | -21,665 | 189,800 | -11,744 |
| 660,000 | 205,504 | 183,579 | -21,925 | 193,300 | -12,204 |
| 670,000 | 209,464 | 187,279 | -22,185 | 196,800 | -12,664 |
| 680,000 | 213,424 | 190,979 | -22,445 | 200,300 | -13,124 |
| 690,000 | 217,384 | 194,679 | -22,705 | 203,800 | -13,584 |
| 700,000 | 221,344 | 198,379 | -22,965 | 207,300 | -14,044 |
| 710,000 | 225,304 | 202,079 | -23,225 | 210,800 | -14,504 |
| 720,000 | 229,264 | 205,779 | -23,485 | 214,300 | -14,964 |
| 730,000 | 233,224 | 209,479 | -23,745 | 217,800 | -15,424 |
| 740,000 | 237,184 | 213,179 | -24,005 | 221,300 | -15,884 |
| 750,000 | 241,144 | 216,879 | -24,265 | 224,800 | -16,344 |
| 760,000 | 245,104 | 220,579 | -24,525 | 228,300 | -16,804 |
| 770,000 | 249,064 | 224,279 | -24,785 | 231,800 | -17,264 |
| 780,000 | 253,024 | 227,979 | -25,045 | 235,300 | -17,724 |
| 790,000 | 256,984 | 231,679 | -25,305 | 238,800 | -18,184 |
| 800,000 | 260,944 | 235,379 | -25,565 | 242,300 | -18,644 |
| 810,000 | 264,904 | 239,079 | -25,825 | 245,800 | -19,104 |
| 820,000 | 268,864 | 242,779 | -26,085 | 249,300 | -19,564 |
| 830,000 | 272,824 | 246,479 | -26,345 | 252,800 | -20,024 |
| 840,000 | 276,784 | 250,179 | -26,605 | 256,300 | -20,484 |
| 850,000 | 280,744 | 253,879 | -26,865 | 259,800 | -20,944 |
| 860,000 | 284,704 | 257,579 | -27,125 | 263,300 | -21,404 |
| 870,000 | 288,664 | 261,279 | -27,385 | 266,800 | -21,864 |
| 880,000 | 292,624 | 264,979 | -27,645 | 270,300 | -22,324 |
| 890,000 | 296,584 | 268,679 | -27,905 | 273,800 | -22,784 |
| 900,000 | 300,544 | 272,379 | -28,165 | 277,300 | -23,244 |
| 910,000 | 304,504 | 276,079 | -28,425 | 280,800 | -23,704 |
| 920,000 | 308,464 | 279,779 | -28,685 | 284,300 | -24,164 |
| 930,000 | 312,424 | 283,479 | -28,945 | 287,800 | -24,624 |
| 940,000 | 316,384 | 287,179 | -29,205 | 291,300 | -25,084 |
| 950,000 | 320,344 | 290,879 | -29,465 | 294,800 | -25,544 |
| 960,000 | 324,304 | 294,579 | -29,725 | 298,300 | -26,004 |
| 970,000 | 328,264 | 298,279 | -29,985 | 301,800 | -26,464 |
| 980,000 | 332,224 | 301,979 | -30,245 | 305,300 | -26,924 |
| 990,000 | 336,184 | 305,679 | -30,505 | 308,800 | -27,384 |
| 1,000,000 | 340,144 | 309,379 | -30,765 | 312,300 | -27,844 |
