src/fed2019/Form8960.ts

   1 // Copyright 2020 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 { Form, TaxReturn } from '../core';
   7 import { ComputedLine, ReferenceLine, UnsupportedLine, sumFormLines } from '../core/Line';
   8 import { clampToZero, undefinedToZero } from '../core/Math';
   9
  10 import Form1040, { FilingStatus } from './Form1040';
  11 import Schedule1 from './Schedule1';
  12
  13 export default class Form8960 extends Form<Form8960['lines']> {
  14   readonly name = '8960';
  15
  16   readonly lines = {
  17     // Part 1
  18     // Section 6013 elections not supported.
  19     '1': new ReferenceLine(Form1040, '2b', 'Taxable interest'),
  20     '2': new ReferenceLine(Form1040, '3b', 'Ordinary dividends'),
  21     '3': new UnsupportedLine('Annuities'),
  22     '4a': new UnsupportedLine('Rental real estate, royalties, partnerships, S corporations, trusts, etc'),
  23     '4b': new UnsupportedLine('Adjustment for net income or loss derived in the ordinary course of a nonsection 1411 trade or business'),
  24     '4c': new ComputedLine((tr): number => this.getValue(tr, '4a') + this.getValue(tr, '4b')),
  25     '5a': new ComputedLine((tr): number => {
  26       return (new ReferenceLine(Form1040, '6')).value(tr) +
  27              undefinedToZero(new ReferenceLine(Schedule1, '4', undefined, 0).value(tr));
  28     }, 'Net gain or loss'),
  29     '5b': new UnsupportedLine('Net gain or loss from disposition of property that is not subject to net investment income tax'),
  30     '5c': new UnsupportedLine('Adjustment from disposition of partnership interest or S corporation stock'),
  31     '5d': new ComputedLine((tr): number => {
  32       return sumFormLines(tr, this, ['5a', '5b', '5c']);
  33     }),
  34     '6': new UnsupportedLine('Adjustments to investment income for certain CFCs and PFICs'),
  35     '7': new UnsupportedLine('Other modifications to investment income'),
  36     '8': new ComputedLine((tr): number => {
  37       return sumFormLines(tr, this, ['1', '2', '3', '4c', '5d', '6', '7']);
  38     }),
  39
  40     // Part 2
  41     // 9a not supported - Investment interest expenses
  42     // 9b not supported - State, local, and foreign income tax
  43     // 9c not supported - Miscellaneous investment expenses
  44     // 9d not supported - 9a+9b+9c
  45     // 10 not supported - Additional modifications
  46     '11': new ComputedLine(() => 0, 'Total deductions and modifications'),  // Not supported - 9d+10.
  47
  48     // Part 3
  49     '12': new ComputedLine((tr): number => this.getValue(tr, '8') - this.getValue(tr, '11'), 'Net investment income'),
  50     '13': new ReferenceLine(Form1040, '8b', 'Modified adjusted gross income'),
  51     '14': new ComputedLine((tr): number => {
  52       return Form8960.filingStatusLimit(tr.getForm(Form1040).filingStatus);
  53     }, 'Threshold'),
  54     '15': new ComputedLine((tr): number => clampToZero(this.getValue(tr, '13') - this.getValue(tr, '14'))),
  55     '16': new ComputedLine((tr): number => Math.min(this.getValue(tr, '12'), this.getValue(tr, '15'))),
  56     '17': new ComputedLine((tr): number => this.getValue(tr, '16') * 0.038, 'Net investment income tax'),
  57
  58     // 18 - 21 not supported (Estates and Trusts)
  59   };
  60
  61   static filingStatusLimit(filingStatus: FilingStatus): number {
  62     switch (filingStatus) {
  63       case FilingStatus.MarriedFilingJoint:    return 250000;
  64       case FilingStatus.MarriedFilingSeparate: return 125000;
  65       case FilingStatus.Single:                return 200000;
  66     }
  67   }
  68 };