fix(single-declaration): exclude income-tax-exempt amount before bracket

Apply gəlir vergisi brackets to (gross_pay − custom_vergi_amount), not raw
gross. Slips marked azadolma drop to 0 contribution, matching how the
formula editor fills the tax-base column. Affects bölmə 3 hissə 1 and
əlavə 1 hissə 1 vergi məbləği.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Ali 2026-05-05 18:16:12 +00:00
parent caedd576b1
commit cecb6c255c
1 changed files with 21 additions and 15 deletions

View File

@ -93,12 +93,12 @@ def populate_declaration_tables(company, year, quarter):
# Fetch payroll data once, build hissə_1 and hissə_2 from it
payroll = fetch_payroll_data(company, from_date, to_date)
emp_monthly_gross = _per_employee_monthly_gross(payroll, quarter)
hisse_1_data = build_hisse_1(payroll, emp_monthly_gross)
emp_monthly_taxable = _per_employee_monthly_taxable(payroll, quarter)
hisse_1_data = build_hisse_1(payroll, emp_monthly_taxable)
hisse_2_data = build_hisse_2(payroll)
hisse_3_data = get_absence_data(company, from_date, to_date)
bolme2_hisse1_data = get_bolme2_hisse1_data(company, year, quarter)
bolme_3_data = build_bolme_3(emp_monthly_gross)
bolme_3_data = build_bolme_3(emp_monthly_taxable)
elave4_data = build_elave4_tables(payroll)
return {
@ -202,14 +202,14 @@ def fetch_payroll_data(company, from_date, to_date):
}
def build_hisse_1(payroll, emp_monthly_gross):
def build_hisse_1(payroll, emp_monthly_taxable):
"""Build hissə_1 rows from aggregated payroll data."""
employee_map = payroll["employee_map"]
fin_map = payroll["fin_map"]
emp_quarterly_tax = {}
for (emp, _mi), gross in emp_monthly_gross.items():
emp_quarterly_tax[emp] = emp_quarterly_tax.get(emp, 0.0) + _calc_income_tax(gross)
for (emp, _mi), taxable in emp_monthly_taxable.items():
emp_quarterly_tax[emp] = emp_quarterly_tax.get(emp, 0.0) + _calc_income_tax(taxable)
result = []
for agg in employee_map.values():
@ -305,8 +305,13 @@ def _calc_income_tax(gross):
return 625 + (gross - 8000) * 0.14
def _per_employee_monthly_gross(payroll, quarter):
"""Group salary slips into {(employee, month_index_1to3): gross_pay_sum}."""
def _per_employee_monthly_taxable(payroll, quarter):
"""Group salary slips into {(employee, month_index_1to3): taxable_income_sum}.
Taxable = gross_pay custom_vergi_amount per slip. Slips fully marked as
income-tax-exempt (custom_vergi_indicator set, amount == gross_pay) drop to 0
and don't contribute to the bracket.
"""
salary_slips = payroll["salary_slips"]
currency = payroll["currency"]
company_currency = payroll["company_currency"]
@ -319,19 +324,20 @@ def _per_employee_monthly_gross(payroll, quarter):
month_index = ss.start_date.month - start_month + 1
if month_index not in (1, 2, 3):
continue
gp = flt(ss.gross_pay)
if currency == company_currency:
gp *= flt(ss.exchange_rate)
rate = flt(ss.exchange_rate) if currency == company_currency else 1.0
gp = flt(ss.gross_pay) * rate
exempt = flt(ss.get("custom_vergi_amount") or 0) * rate
taxable = max(gp - exempt, 0.0)
key = (ss.employee, month_index)
result[key] = result.get(key, 0.0) + gp
result[key] = result.get(key, 0.0) + taxable
return result
def build_bolme_3(emp_monthly_gross):
def build_bolme_3(emp_monthly_taxable):
"""Income tax (gəlir vergisi) per month, computed per-employee then summed."""
monthly_tax = {1: 0.0, 2: 0.0, 3: 0.0}
for (_emp, mi), gross in emp_monthly_gross.items():
monthly_tax[mi] += _calc_income_tax(gross)
for (_emp, mi), taxable in emp_monthly_taxable.items():
monthly_tax[mi] += _calc_income_tax(taxable)
return {
"Muzdlu işlə əlaqədar hesablamalar": {