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