Hello Sakthi Priya,

Hope you are doing well.

To print tax amount in every line based on tax percentage given in each line in invoice, you have to add new Monetary field into account.move.line model and display into invoice line tree view and also you have to write one onchange method based on tax_ids like below.

class AccountMoveLine(models.Model):
_inherit = 'account.move.line'

tax_amount_line = fields.Monetary(string='Total Amount', store=True, readonly=True,
currency_field='currency_id')

@api.onchange('tax_ids')
def check_tax_amount(self):
for rec in self:
if rec.tax_ids:
for tax in rec.tax_ids:
rec.tax_amount_line += (rec.price_unit * tax.amount) / 100
else:
rec.tax_amount_line = 0

Thanks & Regards,
Email: odoo@aktivsoftware.com
Skype: kalpeshmaheshwar