diff --git a/src/accounting/translations/zh_Hant/LC_MESSAGES/accounting.po b/src/accounting/translations/zh_Hant/LC_MESSAGES/accounting.po
index 4dd20a3..10f2047 100644
--- a/src/accounting/translations/zh_Hant/LC_MESSAGES/accounting.po
+++ b/src/accounting/translations/zh_Hant/LC_MESSAGES/accounting.po
@@ -8,8 +8,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Mia! Accounting Flask 0.0.0\n"
 "Report-Msgid-Bugs-To: imacat@mail.imacat.idv.tw\n"
-"POT-Creation-Date: 2023-03-22 01:47+0800\n"
-"PO-Revision-Date: 2023-03-22 01:47+0800\n"
+"POT-Creation-Date: 2023-03-23 00:45+0800\n"
+"PO-Revision-Date: 2023-03-23 00:46+0800\n"
 "Last-Translator: imacat <imacat@mail.imacat.idv.tw>\n"
 "Language: zh_Hant\n"
 "Language-Team: zh_Hant <imacat@mail.imacat.idv.tw>\n"
@@ -19,22 +19,38 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Generated-By: Babel 2.12.1\n"
 
-#: src/accounting/models.py:559
+#: src/accounting/forms.py:33
+#: src/accounting/static/js/journal-entry-form.js:980
+#: src/accounting/static/js/journal-entry-line-item-editor.js:430
+#: src/accounting/static/js/option-form.js:530
+#: src/accounting/static/js/option-form.js:796
+msgid "Please select the account."
+msgstr "請選擇科目。"
+
+#: src/accounting/forms.py:44
+msgid "The currency does not exist."
+msgstr "沒有這個貨幣。"
+
+#: src/accounting/forms.py:55 src/accounting/option/forms.py:42
+msgid "The account does not exist."
+msgstr "沒有這個科目。"
+
+#: src/accounting/models.py:563
 #, python-format
 msgid "Cash Disbursement Journal Entry#%(id)s"
 msgstr "現金支出傳票#%(id)s"
 
-#: src/accounting/models.py:562
+#: src/accounting/models.py:566
 #, python-format
 msgid "Cash Receipt Journal Entry#%(id)s"
 msgstr "現金收入傳票#%(id)s"
 
-#: src/accounting/models.py:563
+#: src/accounting/models.py:567
 #, python-format
 msgid "Transfer Journal Entry#%(id)s"
 msgstr "轉帳傳票#%(id)s"
 
-#: src/accounting/models.py:696
+#: src/accounting/models.py:700
 #, python-format
 msgid "%(date)s %(description)s %(amount)s"
 msgstr "%(date)s %(description)s %(amount)s"
@@ -141,8 +157,11 @@ msgstr "代碼限為三個大寫英文字母。"
 msgid "This code is not available."
 msgstr "不能用這個代碼。"
 
-#: src/accounting/currency/forms.py:62
+#: src/accounting/currency/forms.py:62 src/accounting/option/forms.py:124
+#: src/accounting/option/forms.py:148
 #: src/accounting/static/js/currency-form.js:153
+#: src/accounting/static/js/option-form.js:525
+#: src/accounting/static/js/option-form.js:780
 msgid "Please fill in the name."
 msgstr "請填上名稱。"
 
@@ -186,28 +205,24 @@ msgstr "傳票不可刪除。"
 msgid "The journal entry is deleted successfully."
 msgstr "傳票刪掉了"
 
-#: src/accounting/journal_entry/forms/currency.py:38
+#: src/accounting/journal_entry/forms/currency.py:40
 msgid "Please select the currency."
 msgstr "請選擇貨幣。"
 
-#: src/accounting/journal_entry/forms/currency.py:49
-msgid "The currency does not exist."
-msgstr "沒有這個貨幣。"
-
-#: src/accounting/journal_entry/forms/currency.py:72
+#: src/accounting/journal_entry/forms/currency.py:63
 msgid "The currency must be the same as the original line item."
 msgstr "貨幣需和原始分錄相同。"
 
-#: src/accounting/journal_entry/forms/currency.py:99
+#: src/accounting/journal_entry/forms/currency.py:90
 msgid "The currency must not be changed when there is offset."
 msgstr "抵銷過不可變更貨幣。"
 
-#: src/accounting/journal_entry/forms/currency.py:108
+#: src/accounting/journal_entry/forms/currency.py:99
 #: src/accounting/static/js/journal-entry-form.js:729
 msgid "Please add some line items."
 msgstr "請加上分錄。"
 
-#: src/accounting/journal_entry/forms/currency.py:121
+#: src/accounting/journal_entry/forms/currency.py:112
 #: src/accounting/static/js/journal-entry-form.js:516
 msgid "The totals of the debit and credit amounts do not match."
 msgstr "借方貸方合計不符。 "
@@ -236,62 +251,44 @@ msgstr "請加上貨幣。"
 msgid "Line items with offset cannot be deleted."
 msgstr "無法刪除抵銷過的分錄。"
 
-#: src/accounting/journal_entry/forms/line_item.py:41
-#: src/accounting/static/js/journal-entry-form.js:980
-#: src/accounting/static/js/journal-entry-line-item-editor.js:430
-msgid "Please select the account."
-msgstr "請選擇科目。"
-
-#: src/accounting/journal_entry/forms/line_item.py:52
+#: src/accounting/journal_entry/forms/line_item.py:49
 msgid "The original line item does not exist."
 msgstr "沒有這筆原始分錄。"
 
-#: src/accounting/journal_entry/forms/line_item.py:73
+#: src/accounting/journal_entry/forms/line_item.py:70
 msgid "The original line item is on the same debit or credit."
 msgstr "原始分錄在借貸同一邊。"
 
-#: src/accounting/journal_entry/forms/line_item.py:88
+#: src/accounting/journal_entry/forms/line_item.py:85
 msgid "The original line item does not need offset."
 msgstr "這筆原始分錄不需抵銷。"
 
-#: src/accounting/journal_entry/forms/line_item.py:104
+#: src/accounting/journal_entry/forms/line_item.py:101
 msgid "The original line item cannot be an offset item."
 msgstr "原始分錄不可以是抵銷分錄。"
 
-#: src/accounting/journal_entry/forms/line_item.py:115
-msgid "The account does not exist."
-msgstr "沒有這個科目。"
-
-#: src/accounting/journal_entry/forms/line_item.py:129
-msgid "This account is not for debit line items."
-msgstr "科目不是借方科目。"
-
-#: src/accounting/journal_entry/forms/line_item.py:143
-msgid "This account is not for credit line items."
-msgstr "科目不是貸方科目。"
-
-#: src/accounting/journal_entry/forms/line_item.py:161
+#: src/accounting/journal_entry/forms/line_item.py:119
 msgid "The account must be the same as the original line item."
 msgstr "科目需和原始分錄相同。"
 
-#: src/accounting/journal_entry/forms/line_item.py:179
+#: src/accounting/journal_entry/forms/line_item.py:137
 msgid "The account must not be changed when there is offset."
 msgstr "抵銷過不可變更科目。"
 
-#: src/accounting/journal_entry/forms/line_item.py:195
+#: src/accounting/journal_entry/forms/line_item.py:153
 msgid "A payable line item cannot start from debit."
 msgstr "不可由借方新建應付款。"
 
-#: src/accounting/journal_entry/forms/line_item.py:211
+#: src/accounting/journal_entry/forms/line_item.py:169
 msgid "A receivable line item cannot start from credit."
 msgstr "不可由貸方新建應收款。"
 
-#: src/accounting/journal_entry/forms/line_item.py:222
+#: src/accounting/journal_entry/forms/line_item.py:180
 #: src/accounting/static/js/journal-entry-line-item-editor.js:455
 msgid "Please fill in a positive amount."
 msgstr "金額請填正數。"
 
-#: src/accounting/journal_entry/forms/line_item.py:264
+#: src/accounting/journal_entry/forms/line_item.py:222
 #: src/accounting/static/js/journal-entry-line-item-editor.js:461
 #, python-format
 msgid ""
@@ -299,12 +296,64 @@ msgid ""
 "line item."
 msgstr "金額不可超過原始分錄凈額 %(balance)s 。"
 
-#: src/accounting/journal_entry/forms/line_item.py:285
+#: src/accounting/journal_entry/forms/line_item.py:243
 #: src/accounting/static/js/journal-entry-line-item-editor.js:469
 #, python-format
 msgid "The amount must not be less than the offset total %(total)s."
 msgstr "金額不可低於抵銷總額 %(total)s 。"
 
+#: src/accounting/journal_entry/forms/line_item.py:416
+msgid "This account is not for debit line items."
+msgstr "科目不是借方科目。"
+
+#: src/accounting/journal_entry/forms/line_item.py:468
+msgid "This account is not for credit line items."
+msgstr "科目不是貸方科目。"
+
+#: src/accounting/option/forms.py:53
+msgid "This is not a current account."
+msgstr "這不是流動科目。"
+
+#: src/accounting/option/forms.py:66
+msgid "You cannot select a payable account as expense."
+msgstr "支出不能選應付科目。"
+
+#: src/accounting/option/forms.py:79
+msgid "You cannot select a receivable account as income."
+msgstr "收入不能選應收科目。"
+
+#: src/accounting/option/forms.py:131
+msgid "This account is not for expense."
+msgstr "科目不是支出科目。"
+
+#: src/accounting/option/forms.py:137 src/accounting/option/forms.py:161
+#: src/accounting/static/js/option-form.js:535
+#: src/accounting/static/js/option-form.js:813
+msgid "Please fill in the description template."
+msgstr "請填上摘要範本。"
+
+#: src/accounting/option/forms.py:155
+msgid "This account is not for income."
+msgstr "科目不是收入科目。"
+
+#: src/accounting/option/forms.py:238
+#: src/accounting/static/js/option-form.js:136
+msgid "Please select the default currency."
+msgstr "請選擇預設貨幣。"
+
+#: src/accounting/option/forms.py:244
+#: src/accounting/static/js/option-form.js:152
+msgid "Please select the default account for the income and expenses log."
+msgstr "請選擇收支帳的預設科目。"
+
+#: src/accounting/option/views.py:79
+msgid "The settings were not modified."
+msgstr "設定未異動。"
+
+#: src/accounting/option/views.py:82
+msgid "The settings are saved successfully."
+msgstr "設定存好了。"
+
 #: src/accounting/report/period/description.py:33
 msgid "for all time"
 msgstr "全部"
@@ -363,8 +412,8 @@ msgstr "全部"
 #: src/accounting/report/reports/balance_sheet.py:426
 #: src/accounting/report/reports/balance_sheet.py:438
 #: src/accounting/report/reports/balance_sheet.py:440
-#: src/accounting/report/reports/income_expenses.py:192
-#: src/accounting/report/reports/income_expenses.py:429
+#: src/accounting/report/reports/income_expenses.py:189
+#: src/accounting/report/reports/income_expenses.py:423
 #: src/accounting/report/reports/income_statement.py:299
 #: src/accounting/report/reports/ledger.py:171
 #: src/accounting/report/reports/ledger.py:380
@@ -392,7 +441,7 @@ msgstr "合計"
 msgid "Brought forward"
 msgstr "前期轉入"
 
-#: src/accounting/report/reports/income_expenses.py:413
+#: src/accounting/report/reports/income_expenses.py:407
 #: src/accounting/report/reports/journal.py:155
 #: src/accounting/report/reports/ledger.py:366
 #: src/accounting/templates/accounting/journal-entry/include/form.html:50
@@ -404,10 +453,11 @@ msgstr "前期轉入"
 msgid "Date"
 msgstr "日期"
 
-#: src/accounting/report/reports/income_expenses.py:413
+#: src/accounting/report/reports/income_expenses.py:407
 #: src/accounting/report/reports/journal.py:156
 #: src/accounting/report/reports/trial_balance.py:224
 #: src/accounting/templates/accounting/journal-entry/include/journal-entry-line-item-editor-modal.html:57
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:39
 #: src/accounting/templates/accounting/report/include/toolbar-buttons.html:90
 #: src/accounting/templates/accounting/report/income-expenses.html:56
 #: src/accounting/templates/accounting/report/journal.html:55
@@ -416,7 +466,7 @@ msgstr "日期"
 msgid "Account"
 msgstr "科目"
 
-#: src/accounting/report/reports/income_expenses.py:414
+#: src/accounting/report/reports/income_expenses.py:408
 #: src/accounting/report/reports/journal.py:156
 #: src/accounting/report/reports/ledger.py:366
 #: src/accounting/templates/accounting/journal-entry/include/description-editor-modal.html:28
@@ -428,24 +478,24 @@ msgstr "科目"
 msgid "Description"
 msgstr "摘要"
 
-#: src/accounting/report/reports/income_expenses.py:414
+#: src/accounting/report/reports/income_expenses.py:408
 #: src/accounting/templates/accounting/report/income-expenses.html:58
 msgid "Income"
 msgstr "收入"
 
-#: src/accounting/report/reports/income_expenses.py:415
+#: src/accounting/report/reports/income_expenses.py:409
 #: src/accounting/templates/accounting/report/income-expenses.html:59
 msgid "Expense"
 msgstr "支出"
 
-#: src/accounting/report/reports/income_expenses.py:415
+#: src/accounting/report/reports/income_expenses.py:409
 #: src/accounting/report/reports/ledger.py:368
 #: src/accounting/templates/accounting/report/income-expenses.html:60
 #: src/accounting/templates/accounting/report/ledger.html:60
 msgid "Balance"
 msgstr "餘額"
 
-#: src/accounting/report/reports/income_expenses.py:416
+#: src/accounting/report/reports/income_expenses.py:410
 #: src/accounting/report/reports/journal.py:158
 #: src/accounting/report/reports/ledger.py:368
 #: src/accounting/templates/accounting/journal-entry/include/description-editor-modal.html:178
@@ -515,10 +565,6 @@ msgstr "借方"
 msgid "Credit"
 msgstr "貸方"
 
-#: src/accounting/report/utils/ie_account.py:64
-msgid "current assets and liabilities"
-msgstr "流動資產與負債"
-
 #: src/accounting/report/utils/report_chooser.py:81
 #: src/accounting/templates/accounting/account/include/form.html:98
 #: src/accounting/templates/accounting/account/list.html:40
@@ -526,6 +572,7 @@ msgstr "流動資產與負債"
 #: src/accounting/templates/accounting/currency/list.html:40
 #: src/accounting/templates/accounting/journal-entry/include/account-selector-modal.html:34
 #: src/accounting/templates/accounting/journal-entry/include/original-line-item-selector-modal.html:34
+#: src/accounting/templates/accounting/option/include/recurring-account-selector-modal.html:34
 #: src/accounting/templates/accounting/report/include/search-modal.html:27
 #: src/accounting/templates/accounting/report/include/search-modal.html:33
 #: src/accounting/templates/accounting/report/include/search-modal.html:38
@@ -678,12 +725,14 @@ msgstr "新增科目"
 #: src/accounting/templates/accounting/journal-entry/include/detail.html:31
 #: src/accounting/templates/accounting/journal-entry/include/form.html:38
 #: src/accounting/templates/accounting/journal-entry/order.html:36
+#: src/accounting/templates/accounting/option/form.html:36
 msgid "Back"
 msgstr "回上頁"
 
 #: src/accounting/templates/accounting/account/detail.html:36
 #: src/accounting/templates/accounting/currency/detail.html:36
 #: src/accounting/templates/accounting/journal-entry/include/detail.html:36
+#: src/accounting/templates/accounting/option/detail.html:31
 msgid "Edit"
 msgstr "編輯"
 
@@ -713,6 +762,8 @@ msgstr "確認刪除科目"
 #: src/accounting/templates/accounting/journal-entry/include/detail.html:78
 #: src/accounting/templates/accounting/journal-entry/include/journal-entry-line-item-editor-modal.html:28
 #: src/accounting/templates/accounting/journal-entry/include/original-line-item-selector-modal.html:27
+#: src/accounting/templates/accounting/option/include/recurring-account-selector-modal.html:27
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:28
 #: src/accounting/templates/accounting/report/include/period-chooser.html:27
 #: src/accounting/templates/accounting/report/include/search-modal.html:28
 msgid "Close"
@@ -729,6 +780,8 @@ msgstr "你確定要刪掉這個科目嗎？"
 #: src/accounting/templates/accounting/journal-entry/include/description-editor-modal.html:193
 #: src/accounting/templates/accounting/journal-entry/include/detail.html:84
 #: src/accounting/templates/accounting/journal-entry/include/journal-entry-line-item-editor-modal.html:70
+#: src/accounting/templates/accounting/option/include/recurring-account-selector-modal.html:48
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:65
 #: src/accounting/templates/accounting/report/include/search-modal.html:37
 msgid "Cancel"
 msgstr "取消"
@@ -773,6 +826,7 @@ msgstr "科目管理"
 #: src/accounting/templates/accounting/currency/list.html:32
 #: src/accounting/templates/accounting/journal-entry/include/form-debit-credit.html:44
 #: src/accounting/templates/accounting/journal-entry/include/form.html:64
+#: src/accounting/templates/accounting/option/include/form-recurring-expense-income.html:37
 #: src/accounting/templates/accounting/report/include/toolbar-buttons.html:26
 msgid "New"
 msgstr "新增"
@@ -785,6 +839,7 @@ msgstr "新增"
 #: src/accounting/templates/accounting/journal-entry/include/account-selector-modal.html:46
 #: src/accounting/templates/accounting/journal-entry/include/original-line-item-selector-modal.html:51
 #: src/accounting/templates/accounting/journal-entry/order.html:82
+#: src/accounting/templates/accounting/option/include/recurring-account-selector-modal.html:45
 #: src/accounting/templates/accounting/report/balance-sheet.html:110
 #: src/accounting/templates/accounting/report/income-expenses.html:113
 #: src/accounting/templates/accounting/report/income-statement.html:96
@@ -807,6 +862,8 @@ msgstr "%(base)s下的科目"
 #: src/accounting/templates/accounting/journal-entry/include/form.html:80
 #: src/accounting/templates/accounting/journal-entry/include/journal-entry-line-item-editor-modal.html:71
 #: src/accounting/templates/accounting/journal-entry/order.html:61
+#: src/accounting/templates/accounting/option/form.html:80
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:66
 msgid "Save"
 msgstr "儲存"
 
@@ -833,6 +890,7 @@ msgstr "選擇基本科目"
 #: src/accounting/templates/accounting/account/include/form.html:114
 #: src/accounting/templates/accounting/account/include/form.html:116
 #: src/accounting/templates/accounting/journal-entry/include/account-selector-modal.html:50
+#: src/accounting/templates/accounting/option/include/recurring-account-selector-modal.html:49
 msgid "Clear"
 msgstr "清除"
 
@@ -866,6 +924,7 @@ msgid "Code"
 msgstr "代碼"
 
 #: src/accounting/templates/accounting/currency/include/form.html:50
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:33
 msgid "Name"
 msgstr "名稱"
 
@@ -889,6 +948,12 @@ msgstr "基本科目"
 msgid "Currencies"
 msgstr "貨幣"
 
+#: src/accounting/templates/accounting/include/nav.html:58
+#: src/accounting/templates/accounting/option/detail.html:24
+#: src/accounting/templates/accounting/option/form.html:29
+msgid "Settings"
+msgstr "設定"
+
 #: src/accounting/templates/accounting/include/pagination.html:23
 msgid "Page navigation"
 msgstr "分頁瀏覽"
@@ -923,6 +988,7 @@ msgid "Editing %(journal_entry)s"
 msgstr "編輯%(journal_entry)s"
 
 #: src/accounting/templates/accounting/journal-entry/include/account-selector-modal.html:26
+#: src/accounting/templates/accounting/option/include/recurring-account-selector-modal.html:26
 msgid "Select Account"
 msgstr "選擇科目"
 
@@ -1016,19 +1082,19 @@ msgstr "分錄內容"
 msgid "Original Line Item"
 msgstr "原始分錄"
 
-#: src/accounting/templates/accounting/journal-entry/include/order-journal-entry.html:26
+#: src/accounting/templates/accounting/journal-entry/include/order-journal-entry.html:25
 #: src/accounting/templates/accounting/report/include/add-journal-entry-material-fab.html:26
 #: src/accounting/templates/accounting/report/include/toolbar-buttons.html:31
 msgid "Cash Disbursement"
 msgstr "現金支出"
 
-#: src/accounting/templates/accounting/journal-entry/include/order-journal-entry.html:28
+#: src/accounting/templates/accounting/journal-entry/include/order-journal-entry.html:27
 #: src/accounting/templates/accounting/report/include/add-journal-entry-material-fab.html:29
 #: src/accounting/templates/accounting/report/include/toolbar-buttons.html:36
 msgid "Cash Receipt"
 msgstr "現金收入"
 
-#: src/accounting/templates/accounting/journal-entry/include/order-journal-entry.html:30
+#: src/accounting/templates/accounting/journal-entry/include/order-journal-entry.html:29
 #: src/accounting/templates/accounting/report/include/add-journal-entry-material-fab.html:32
 #: src/accounting/templates/accounting/report/include/toolbar-buttons.html:41
 msgid "Transfer"
@@ -1046,6 +1112,68 @@ msgstr "新增現金收入傳票"
 msgid "Add a New Transfer Journal Entry"
 msgstr "新增轉帳傳票"
 
+#: src/accounting/templates/accounting/option/detail.html:43
+#: src/accounting/templates/accounting/option/form.html:51
+msgid "Default Currency"
+msgstr "預設貨幣"
+
+#: src/accounting/templates/accounting/option/detail.html:48
+#: src/accounting/templates/accounting/option/form.html:61
+msgid "Default Account for the Income and Expenses Log"
+msgstr "收支帳預設科目"
+
+#: src/accounting/templates/accounting/option/detail.html:52
+#: src/accounting/templates/accounting/option/form.html:66
+#: src/accounting/templates/accounting/option/form.html:92
+msgid "Recurring Expense"
+msgstr "常用支出"
+
+#: src/accounting/templates/accounting/option/detail.html:58
+#: src/accounting/templates/accounting/option/form.html:72
+#: src/accounting/templates/accounting/option/form.html:96
+msgid "Recurring Income"
+msgstr "常用收入"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:47
+msgid "Description Template"
+msgstr "摘要範本"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:52
+msgid "Available template variables:"
+msgstr "範本變數說明："
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:54
+msgid "This month, as a number."
+msgstr "這個月的數字。"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:55
+msgid "This month, in its name."
+msgstr "這個月的名稱。"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:56
+msgid "Last month, as a number."
+msgstr "上個月的數字。"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:57
+msgid "Last month, in its name."
+msgstr "上個月的名稱。"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:58
+msgid "The previous bimonthly period, as numbers."
+msgstr "前個雙月期的數字。"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:59
+msgid "The previous bimonthly period, as their names."
+msgstr "前個雙月期的名稱。"
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:61
+msgid "Example:"
+msgstr "範例："
+
+#: src/accounting/templates/accounting/option/include/recurring-item-editor-modal.html:61
+msgid "Water bill for {last_bimonthly_name}"
+msgstr "水費{last_bimonthly_number}月"
+
 #: src/accounting/templates/accounting/report/balance-sheet.html:29
 #: src/accounting/templates/accounting/report/balance-sheet.html:49
 #, python-format
@@ -1112,6 +1240,10 @@ msgstr "期間"
 msgid "Download"
 msgstr "下載"
 
+#: src/accounting/utils/current_account.py:65
+msgid "current assets and liabilities"
+msgstr "流動資產與負債"
+
 #: src/accounting/utils/pagination.py:206
 msgctxt "Pagination|"
 msgid "Previous"