diff --git a/l10n_us_hr_payroll/data/state/ne_nebraska.xml b/l10n_us_hr_payroll/data/state/ne_nebraska.xml
index 4db292ba..1951ff2f 100644
--- a/l10n_us_hr_payroll/data/state/ne_nebraska.xml
+++ b/l10n_us_hr_payroll/data/state/ne_nebraska.xml
@@ -27,7 +27,7 @@
             <field name="date_from" eval="datetime(2020, 1, 1).date()"/>
         </record>
     </data>
-
+    <!-- Table based on Percentage method from https://revenue.nebraska.gov/sites/revenue.nebraska.gov/files/doc/business/2017cir-en_whole.pdf -->
     <record id="rule_parameter_us_ne_sit_tax_rate" model="hr.rule.parameter">
         <field name="name">US NE Nebraska SIT Tax Rate</field>
         <field name="code">us_ne_sit_tax_rate</field>
@@ -37,22 +37,134 @@
         <record id="rule_parameter_us_ne_sit_tax_rate_2020" model="hr.rule.parameter.value">
             <field name="parameter_value">{
                 'single': {
-                    'weekly': ((57, 0.00, 0.0), (105, 0.00, 2.26), (342, 1.08, 3.22), (496, 8.71, 4.91), (629, 16.27, 6.20), (1182, 24.52, 6.59), ('inf', 60.96, 6.95)),
-                    'bi-weekly': ((114, 0.00, 0.0), (211, 0.00, 2.26), (684, 2.19, 3.22), (992, 17.42, 4.91), (1259, 32.54, 6.20), (2364, 49.09, 6.59), ('inf', 121.91, 6.95)),
-                    'semi-monthly': ((124, 0.00, 0.0), (228, 0.00, 2.26), (741, 2.35, 3.22), (1074, 18.87, 4.91), (1364, 35.22, 6.20), (2561, 53.20, 6.59), ('inf', 132.08, 6.95)),
-                    'monthly': ((248, 0.00, 0.0), (457, 0.00, 2.26), (1483, 4.72, 3.22), (2148, 37.76, 4.91), (2728, 70.41, 6.20), (5123, 106.37, 6.59), ('inf', 264.20, 6.95)),
-                    'quarterly': ((744, 0.00, 0.0), (1370, 0.00, 2.26), (4448, 14.15, 3.22), (6445, 113.26, 4.91), (8183, 211.31, 6.20), (15368, 319.07, 6.59), ('inf', 792.56, 6.95)),
-                    'semi-annual': ((1488, 0.00, 0.0), (2740, 0.00, 2.26), (8895, 28.30, 3.22), (12890, 226.49, 4.91), (16365, 422.64, 6.20), (30735, 638.09, 6.59), ('inf', 1585.07, 6.95)),
-                    'annually': ((2975, 0.00, 0.0), (5480, 0.00, 2.26), (17790, 56.61, 3.22), (25780, 452.99, 4.91), (32730, 845.30, 6.20), (61470, 1276.20, 6.59), ('inf', 3170.17, 6.95)),
+                    'weekly': (
+                        (   57,  0.00,  0.00),
+                        (  105,  0.00,  2.26),
+                        (  342,  1.08,  3.22),
+                        (  496,  8.71,  4.91),
+                        (  629, 16.27,  6.20),
+                        ( 1182, 24.52,  6.59),
+                        ('inf', 60.96,  6.95),
+                    ),
+                    'bi-weekly': (
+                        (  114,   0.00,  0.00),
+                        (  211,   0.00,  2.26),
+                        (  684,   2.19,  3.22),
+                        (  992,  17.42,  4.91),
+                        ( 1259,  32.54,  6.20),
+                        ( 2364,  49.09,  6.59),
+                        ('inf', 121.91,  6.95),
+                    ),
+                    'semi-monthly': (
+                        (  124,   0.00,  0.00),
+                        (  228,   0.00,  2.26),
+                        (  741,   2.35,  3.22),
+                        ( 1074,  18.87,  4.91),
+                        ( 1364,  35.22,  6.20),
+                        ( 2561,  53.20,  6.59),
+                        ('inf', 132.08,  6.95),
+                    ),
+                    'monthly': (
+                        (  248,   0.00,  0.00),
+                        (  457,   0.00,  2.26),
+                        ( 1483,   4.72,  3.22),
+                        ( 2148,  37.76,  4.91),
+                        ( 2728,  70.41,  6.20),
+                        ( 5123, 106.37,  6.59),
+                        ('inf', 264.20,  6.95),
+                    ),
+                    'quarterly': (
+                        (   744,    0.00,  0.00),
+                        (  1370,    0.00,  2.26),
+                        (  4448,   14.15,  3.22),
+                        (  6445,  113.26,  4.91),
+                        (  8183,  211.31,  6.20),
+                        ( 15368,  319.07,  6.59),
+                        ( 'inf',  792.56,  6.95),
+                    ),
+                    'semi-annual': (
+                        (  1488,     0.00,  0.00),
+                        (  2740,     0.00,  2.26),
+                        (  8895,    28.30,  3.22),
+                        ( 12890,   226.49,  4.91),
+                        ( 16365,   422.64,  6.20),
+                        ( 30735,   638.09,  6.59),
+                        ( 'inf',  1585.07,  6.95),
+                    ),
+                    'annually': (
+                        (  2975,    0.00, 0.00),
+                        (  5480,    0.00, 2.26),
+                        ( 17790,   56.61, 3.22),
+                        ( 25780,  452.99, 4.91),
+                        ( 32730,  845.30, 6.20),
+                        ( 61470, 1276.20, 6.59),
+                        ( 'inf', 3170.17, 6.95),
+                    ),
                 },
                 'married': {
-                    'weekly': ((137, 0.00, 0.0), (204, 0.00, 2.26), (508, 1.51, 3.22), (790, 11.30, 4.91), (981, 25.15, 6.20), (1300, 36.99, 6.59), ('inf', 58.01, 6.95)),
-                    'bi-weekly': ((273, 0.00, 0.0), (408, 0.00, 2.26), (1016, 3.05, 3.22), (1581, 22.63, 4.91), (1961, 50.37, 6.20), (2601, 73.93, 6.59), ('inf', 116.11, 6.95)),
-                    'semi-monthly': ((296, 0.00, 0.0), (442, 0.00, 2.26), (1101, 3.30, 3.22), (1713, 24.52, 4.91), (2125, 54.57, 6.20), (2818, 80.11, 6.59), ('inf', 125.78, 6.95)),
-                    'monthly': ((592, 0.00, 0.0), (884, 0.00, 2.26), (2202, 6.60, 3.22), (3425, 49.04, 4.91), (4249, 109.09, 6.20), (5635, 160.18, 6.59), ('inf', 251.52, 6.95)),
-                    'quarterly': ((1775, 0.00, 0.0), (2653, 0.00, 2.26), (6605, 19.84, 3.22), (10275, 147.09, 4.91), (12748, 327.29, 6.20), (16905, 480.62, 6.59), ('inf', 754.57, 6.95)),
-                    'semi-annual': ((3550, 0.00, 0.0), (5305, 0.00, 2.26), (13210, 39.66, 3.22), (20550, 294.20, 4.91), (25495, 654.59, 6.20), (33810, 961.18, 6.59), ('inf', 1509.14, 6.95)),
-                    'annually': ((7100, 0.00, 0.0), (10610, 0.00, 2.26), (26420, 79.33, 3.22), (41100, 588.41, 4.91), (50990, 1309.20, 6.20), (67620, 1992.38, 6.59), ('inf', 3018.30, 6.95)),
+                    'weekly': (
+                        (  137,  0.00, 0.00),
+                        (  204,  0.00, 2.26),
+                        (  508,  1.51, 3.22),
+                        (  790, 11.30, 4.91),
+                        (  981, 25.15, 6.20),
+                        ( 1300, 36.99, 6.59),
+                        ('inf', 58.01, 6.95),
+                    ),
+                    'bi-weekly': (
+                        (  273,   0.00, 0.00),
+                        (  408,   0.00, 2.26),
+                        ( 1016,   3.05, 3.22),
+                        ( 1581,  22.63, 4.91),
+                        ( 1961,  50.37, 6.20),
+                        ( 2601,  73.93, 6.59),
+                        ('inf', 116.11, 6.95),
+                    ),
+                    'semi-monthly': (
+                        (  296,   0.00, 0.00),
+                        (  442,   0.00, 2.26),
+                        ( 1101,   3.30, 3.22),
+                        ( 1713,  24.52, 4.91),
+                        ( 2125,  54.57, 6.20),
+                        ( 2818,  80.11, 6.59),
+                        ('inf', 125.78, 6.95),
+                    ),
+                    'monthly': (
+                        (  592,   0.00,  0.00),
+                        (  884,   0.00,  2.26),
+                        ( 2202,   6.60,  3.22),
+                        ( 3425,  49.04,  4.91),
+                        ( 4249,  109.09, 6.20),
+                        ( 5635,  160.18, 6.59),
+                        ('inf',  251.52, 6.95),
+                    ),
+                    'quarterly': (
+                        (  1775,   0.00,   0.00),
+                        (  2653,   0.00,   2.26),
+                        (  6605,   19.84,  3.22),
+                        ( 10275,  147.09,  4.91),
+                        ( 12748,  327.29,  6.20),
+                        ( 16905,  480.62,  6.59),
+                        ( 'inf',  754.57,  6.95),
+                    ),
+                    'semi-annual': (
+                        (  3550,    0.00,  0.00),
+                        (  5305,    0.00,  2.26),
+                        ( 13210,   39.66,  3.22),
+                        ( 20550,  294.20,  4.91),
+                        ( 25495,  654.59,  6.20),
+                        ( 33810,  961.18,  6.59),
+                        ( 'inf', 1509.14,  6.95),
+                    ),
+                    'annually': (
+                        (  7100,    0.00, 0.00),
+                        ( 10610,    0.00, 2.26),
+                        ( 26420,   79.33, 3.22),
+                        ( 41100,  588.41, 4.91),
+                        ( 50990, 1309.20, 6.20),
+                        ( 67620, 1992.38, 6.59),
+                        ( 'inf', 3018.30, 6.95),
+                    ),
                 },
             }</field>
             <field name="rule_parameter_id" ref="rule_parameter_us_ne_sit_tax_rate"/>
diff --git a/l10n_us_hr_payroll/tests/test_us_ne_nebraska_payslip_2020.py b/l10n_us_hr_payroll/tests/test_us_ne_nebraska_payslip_2020.py
index bbf2b7b0..785e4417 100644
--- a/l10n_us_hr_payroll/tests/test_us_ne_nebraska_payslip_2020.py
+++ b/l10n_us_hr_payroll/tests/test_us_ne_nebraska_payslip_2020.py
@@ -26,7 +26,7 @@ class TestUsNEPayslip(TestUsPayslip):
         cats = self._getCategories(payslip)
 
         self._log('Computed period tax: ' + str(expected_withholding))
-        self.assertPayrollEqual(cats.get('EE_US_SIT', 0.0), -expected_withholding)
+        self.assertPayrollAlmostEqual(cats.get('EE_US_SIT', 0.0), -expected_withholding)
 
     def test_2020_taxes_example(self):
         self._test_er_suta('NE', self.NE_UNEMP, date(2020, 1, 1), wage_base=self.NE_UNEMP_MAX_WAGE)
@@ -34,4 +34,5 @@ class TestUsNEPayslip(TestUsPayslip):
         self._test_sit(9500.0, 'single', False, 0.0, 1, 'bi-weekly', date(2020, 1, 1), 612.63)
         self._test_sit(10500.0, 'married', False, 0.0, 1, 'bi-weekly', date(2020, 1, 1), 659.85)
         self._test_sit(9500.0, 'single', True, 0.0, 1, 'bi-weekly', date(2020, 1, 1), 0.0)
-        self._test_sit(10500.0, 'single', False, 10.0, 2, 'monthly', date(2020, 1, 1), 625.2)
\ No newline at end of file
+        self._test_sit(10500.0, 'single', False, 10.0, 2, 'monthly', date(2020, 1, 1), 625.2)
+        self._test_sit(4000.0, 'single', False, 0.0, 1, 'monthly', date(2020, 1, 1), 179.44)