invoice_keeper/db/migrate/20161003080546_create_vats.rb

class CreateVats < ActiveRecord::Migration[5.0]
  def change
    create_table :vats do |t|
      t.string :name
      t.date :start_date
      t.decimal :tax_rate, { precision: 6, scale: 2 }

      t.timestamps
    end
  end
end