src/fed2020/Form1040.ts

   1 // Copyright 2021 Blue Static <https://www.bluestatic.org>
   2 // This program is free software licensed under the GNU General Public License,
   3 // version 3.0. The full text of the license can be found in LICENSE.txt.
   4 // SPDX-License-Identifier: GPL-3.0-only
   5
   6 import { TaxReturn } from '../core';
   7 import { Line, AccumulatorLine, ComputedLine, ReferenceLine, SymbolicLine, UnsupportedLine, sumFormLines, sumLineOfForms } from '../core/Line';
   8 import { UnsupportedFeatureError } from '../core/Errors';
   9 import { clampToZero, reduceBySum, undefinedToZero } from '../core/Math';
  10
  11 import { Form1040 as Form1040_2019, QDCGTaxWorksheet as QDCGTaxWorksheet_2019 } from '../fed2019';
  12
  13 import { computeTax } from '.';
  14 import { Form1099DIV } from '.';
  15 import { Form1099INT } from '.';
  16 import { Form1099R, Box7Code } from '.';
  17 import { Form8606 } from '.';
  18 import { Form8959 } from '.';
  19 import { Schedule1 } from '.';
  20 import { Schedule2 } from '.';
  21 import { Schedule3 } from '.';
  22 import { ScheduleD } from '.';
  23 import { W2 } from '.';
  24
  25 export default class Form1040 extends Form1040_2019 {
  26   adjustedGrossIncome(tr: TaxReturn): number {
  27     return this.getValue(tr, '9') - this.getValue(tr, '10c');
  28   }
  29
  30   totalIncome(tr: TaxReturn): number {
  31     return sumFormLines(tr, this, ['1', '2b', '3b', '4b', '5b', '6b', '7', '8']);
  32   }
  33
  34   taxableIncome(tr: TaxReturn): number {
  35     return clampToZero(this.getValue(tr, '11') - this.getValue(tr, '14'));
  36   }
  37
  38   readonly lines = {
  39     '1': new AccumulatorLine(W2, '1', 'Wages, salaries, tips, etc.'),
  40     '2a': new ComputedLine((tr): number => {
  41       const value = (new AccumulatorLine(Form1099INT, '8')).value(tr) +
  42                     (new AccumulatorLine(Form1099DIV, '11')).value(tr);
  43       return value;
  44     }, 'Tax-exempt interest'),
  45     '2b': new ComputedLine((tr) => this.taxableInterest(tr), 'Taxable interest'),
  46     '3a': new AccumulatorLine(Form1099DIV, '1b', 'Qualified dividends'),
  47     '3b': new AccumulatorLine(Form1099DIV, '1a', 'Ordinary dividends'),
  48     '4a': new ComputedLine((tr): number => {
  49       const f1099Rs = tr.findForms(Form1099R).filter(f => !f.getValue(tr, '7').includes(Box7Code.G));
  50       return sumLineOfForms(tr, f1099Rs, '1');
  51     }, 'IRA distributions'),
  52     '4b': new ComputedLine((tr): number => {
  53       const f8606s = tr.findForms(Form8606);
  54       return sumLineOfForms(tr, f8606s, '15c') + sumLineOfForms(tr, f8606s, '18');
  55     }, 'IRA distributions, taxable amount'),
  56     '5a': new UnsupportedLine('Pensions and annuities'),
  57     '5b': new UnsupportedLine('Pensions and annuities, taxable amount'),
  58     '6a': new UnsupportedLine('Social security benefits'),
  59     '6b': new UnsupportedLine('Social security benefits, taxable amount'),
  60
  61     '7': new ComputedLine((tr) => this.capitalGainOrLoss(tr), 'Capital gain/loss'),
  62
  63     '8': new ReferenceLine(Schedule1, '9', 'Other income from Schedule 1', 0),
  64
  65     '9': new ComputedLine((tr) => this.totalIncome(tr), 'Total income'),
  66
  67     '10a': new ReferenceLine(Schedule1, '22', 'Adjustments to income', 0),
  68     '10b': new UnsupportedLine('Charitable contributions if you take the standard deduction'),
  69     '10c': new ComputedLine((tr) => sumFormLines(tr, this, ['10a', '10b']), 'Total adjustments to income'),
  70
  71     '11': new ComputedLine((tr) => this.adjustedGrossIncome(tr), 'Adjusted gross income'),
  72
  73     '12': new ComputedLine((tr) => this.deduction(tr), 'Deductions'),
  74
  75     '13': new ComputedLine((tr) => this.qualifiedBusinessIncomeDeduction(tr), 'Qualified business income deduction'),
  76
  77     '14': new ComputedLine((tr) => sumFormLines(tr, this, ['12', '13'])),
  78
  79     '15': new ComputedLine((tr) => this.taxableIncome(tr), 'Taxable income'),
  80
  81     '16': new ComputedLine((tr) => this.tax(tr), 'Tax'),
  82
  83     '17': new ReferenceLine(Schedule2, '3', 'Additional tax', 0),
  84
  85     '18': new ComputedLine((tr) => sumFormLines(tr, this, ['16', '17'])),
  86
  87     '19': new UnsupportedLine('Child tax credit'),
  88
  89     '20': new ReferenceLine(Schedule3, '7', undefined, 0),
  90
  91     '21': new ComputedLine((tr) => sumFormLines(tr, this, ['19', '20'])),
  92
  93     '22': new ComputedLine((tr) => clampToZero(this.getValue(tr, '18') - this.getValue(tr, '21'))),
  94
  95     '23': new ReferenceLine(Schedule2, '10', undefined, 0),
  96
  97     '24': new ComputedLine((tr) => sumFormLines(tr, this, ['22', '23']), 'Total tax'),
  98
  99     '25a': new AccumulatorLine(W2, '2', 'Withholding from W-2'),
 100     '25b': new ComputedLine((tr) => {
 101       const fedTaxWithheldBoxes = [
 102         new AccumulatorLine(Form1099R, '4'),
 103         new AccumulatorLine(Form1099DIV, '4'),
 104         new AccumulatorLine(Form1099INT, '4'),
 105       ];
 106       return fedTaxWithheldBoxes.reduce((acc, cur) => acc + cur.value(tr), 0);
 107     }, 'Withholding from 1099'),
 108     '25c': new ComputedLine((tr) => {
 109       const f8959 = tr.findForm(Form8959)
 110       if (f8959) {
 111         return f8959.getValue(tr, '24');
 112       }
 113       // K-1@25c too.
 114       return 0;
 115     }, 'Withholding from other forms'),
 116     '25d': new ComputedLine((tr) => sumFormLines(tr, this, ['25a', '25b', '25c']), 'Federal income tax withheld'),
 117
 118     '26': new UnsupportedLine('Estimated tax payments'),
 119
 120     '27': new UnsupportedLine('Earned income credit (EIC)'),
 121     '28': new UnsupportedLine('Additional child tax credit. Attach Schedule 8812'),
 122     '29': new UnsupportedLine('American opportunity credit from Form 8863, line 8'),
 123     '30': new UnsupportedLine('Recovery rebate credit'),
 124
 125     '31': new ReferenceLine(Schedule3, '13', undefined, 0),
 126
 127     '32': new ComputedLine((tr) => sumFormLines(tr, this, ['27', '28', '29', '30', '31']), 'Total other payments and refundable credits'),
 128
 129     '33': new ComputedLine((tr) => sumFormLines(tr, this, ['25d', '26', '32']), 'Total payments'),
 130
 131     '34': new ComputedLine((tr) => clampToZero(this.getValue(tr, '33') - this.getValue(tr, '24')), 'Amount overpaid'),
 132
 133     '37': new ComputedLine((tr) => clampToZero(this.getValue(tr, '24') - this.getValue(tr, '33')), 'Amount you owe'),
 134   }
 135 }
 136
 137 export class QDCGTaxWorksheet extends QDCGTaxWorksheet_2019 {
 138   readonly name = 'QDCG Tax Worksheet';
 139
 140   dividendsAndCapitalGains(tr: TaxReturn): number {
 141     return clampToZero(this.getValue(tr, '2') + this.getValue(tr, '3'));
 142   }
 143
 144   taxableIncomeLessDividendsAndCapitalGains(tr: TaxReturn): number {
 145     return clampToZero(this.getValue(tr, '1') - this.getValue(tr, '4'));
 146   }
 147
 148   totalTax(tr: TaxReturn): number {
 149     return Math.min(this.getValue(tr, '23'), this.getValue(tr, '24'));
 150   }
 151
 152   readonly lines = {
 153     '1': new SymbolicLine(Form1040, 'taxableIncome', 'Taxable income'),
 154     '2': new ReferenceLine(Form1040, '3a', 'Qualified dividends'),
 155     '3': new ComputedLine((tr): number => {
 156       const schedD = tr.findForm(ScheduleD);
 157       if (schedD)
 158         return clampToZero(Math.min(schedD.getValue(tr, '15'), schedD.getValue(tr, '16')));
 159       return tr.getForm(Form1040).capitalGainOrLoss(tr);
 160     }),
 161     '4': new ComputedLine((tr) => this.dividendsAndCapitalGains(tr)),
 162     '5': new ComputedLine((tr) => this.taxableIncomeLessDividendsAndCapitalGains(tr)),
 163     '6': new ComputedLine((tr): number => {
 164       const fs = tr.getForm(Form1040).filingStatus;
 165       return tr.constants.capitalGains.rate0MaxIncome[fs];
 166     }),
 167     '7': new ComputedLine((tr): number => Math.min(this.getValue(tr, '1'), this.getValue(tr, '6'))),
 168     '8': new ComputedLine((tr): number => Math.min(this.getValue(tr, '5'), this.getValue(tr, '7'))),
 169     '9': new ComputedLine((tr): number => {
 170       return this.getValue(tr, '7') - this.getValue(tr, '8');
 171     }, 'Amount taxed at 0%'),
 172     '10': new ComputedLine((tr): number => Math.min(this.getValue(tr, '1'), this.getValue(tr, '4'))),
 173     '11': new ReferenceLine(QDCGTaxWorksheet as any, '9'),
 174     '12': new ComputedLine((tr): number => this.getValue(tr, '10') - this.getValue(tr, '11')),
 175     '13': new ComputedLine((tr): number => {
 176       const fs = tr.getForm(Form1040).filingStatus;
 177       return tr.constants.capitalGains.rate15MaxIncome[fs];
 178     }),
 179     '14': new ComputedLine((tr): number => Math.min(this.getValue(tr, '1'), this.getValue(tr, '13'))),
 180     '15': new ComputedLine((tr): number => this.getValue(tr, '5') + this.getValue(tr, '9')),
 181     '16': new ComputedLine((tr): number => clampToZero(this.getValue(tr, '14') - this.getValue(tr, '15'))),
 182     '17': new ComputedLine((tr): number => Math.min(this.getValue(tr, '12'), this.getValue(tr, '16'))),
 183     '18': new ComputedLine((tr): number => {
 184       return this.getValue(tr, '17') * 0.15;
 185     }, 'Amount taxed at 15%'),
 186     '19': new ComputedLine((tr): number => this.getValue(tr, '9') + this.getValue(tr, '17')),
 187     '20': new ComputedLine((tr): number => this.getValue(tr, '10') - this.getValue(tr, '19')),
 188     '21': new ComputedLine((tr): number => {
 189       return this.getValue(tr, '20') * 0.20;
 190     }, 'Amount taxed at 20%'),
 191     '22': new ComputedLine((tr): number => {
 192       return computeTax(this.getValue(tr, '5'), tr);
 193     }, 'Tax on line 5'),
 194     '23': new ComputedLine((tr) => sumFormLines(tr, this, ['18', '21', '22'])),
 195     '24': new ComputedLine((tr): number => {
 196       return computeTax(this.getValue(tr, '1'), tr);
 197     }, 'Tax on line 1'),
 198     '25': new ComputedLine((tr) => this.totalTax(tr), 'Tax on all taxable income')
 199   };
 200 }