💸 稅務工具

🧮 GST 商品服務稅計算GST Calculator GST 商品服務稅計算Convert between tax-inclusive and tax-exclusive amounts at any GST rate to separate the tax from the base price. Runs locally. 🧾 不含稅 = 含稅 ÷ (1 + 稅率)Vat Inclusive to Exclusive 輸入含稅金額與增值稅稅率，按 不含稅=含稅÷(1+稅率) 將含稅價拆分為不含稅銷售額與應納稅額，用於報銷、入賬時把含稅價款還原為不含稅收入與稅額。Vat Inclusive to Exclusive - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of... 🌐 關稅 = 完稅價格 × 關稅率Customs Duty 進口關稅計算器：輸入審定完稅價格與關稅率，按 關稅 = 完稅價格×關稅率 計算進口關稅，用於進出口成本核算。Customs Duty - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🪜 分檔累加：各檔 (應稅−下限) × 檔率Progressive Income Tax 輸入應納稅所得額並自定義各檔級距下限與稅率，按分檔累加（各檔 (應稅−下限)×檔率）計算三檔及以上累進所得稅，用於工資薪金、經營所得的分級計稅。Progressive Income Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🛒 含稅 = 價格 × (1 + 稅率)Sales Tax Addon 價外稅計算器：在價格之外按比例附加消費稅，輸入價格與稅率按 含稅 = 價格×(1+稅率) 求含稅總額，用於零售標價。Sales Tax Addon - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. ⚖️ 實際稅率 = 總稅額 ÷ 稅前所得Effective Tax Rate 實際稅率計算器：輸入總稅額與稅前所得，按 實際稅率 = 總稅額÷稅前所得 綜合衡量實際承擔的稅負水平。Effective Tax Rate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 📊 應稅所得 = 固定扣除 / 邊際稅率Break Even Taxable 盈虧平衡應稅額計算器：結合固定扣除與邊際稅率，估算達到稅後目標所需的應稅所得，用於稅務籌劃。Break Even Taxable - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🏷️ 折扣後計稅計算器Tax on Discount 折扣後計稅計算器：輸入原價、折扣率與稅率，按折後金額計算應納稅額，用於促銷場景的稅務處理。Tax on Discount - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🔄 由代扣金額與徵收率求代扣代繳稅額Reverse Charge 輸入代扣代付金額與徵收率，按 稅額=金額×徵收率 計算代扣代繳的增值稅或稅費，用於支付方在代扣代繳義務下的應扣稅額快速計算。Reverse Charge - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 💯 由出廠單價、數量與消費稅率求消費稅Excise Tax 輸入應稅消費品出廠單價、銷售數量與消費稅率，按 稅額=出廠價×數量×稅率 計算從價計徵的消費稅，用於生產環節應稅貨物消費稅的快速核算。Excise Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🌐 由境外已納稅與抵免限額求可抵扣額Foreign Tax Credit 輸入境外已納所得稅額與抵免限額，按 抵扣額=min(境外已納,抵免限額) 計算可抵免金額，用於居民企業避免國際重複徵稅時境外稅收抵免額的確定。Foreign Tax Credit - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 👥 由工資金額與雙方費率求工薪稅合計Payroll Tax 輸入工資總額、僱主費率與僱員費率，按 稅額=工資×(僱主率+僱員率) 計算工薪稅（如社保、薪資稅）合計，用於僱主核算僱傭一名員工的總用工稅費成本。Payroll Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 📦 由應稅數量與單位稅額求從量稅Specific Duty 從量稅計算器：輸入應稅數量與單位稅額，按 T = 數量×單位稅額 求從量稅，用於按件或重量計徵的關稅與消費稅。Specific Duty - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. ➖ 由應納稅額與稅收抵免額求實繳稅額Tax Credit 輸入應納稅額與可抵免的稅收抵免額，按 實繳=應納稅額−抵免額 計算抵免後應實際繳納的稅額，用於享受投資抵免、研發加計等優惠後的最終繳稅金額核算。Tax Credit - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 💯 由總稅額與總收入求平均稅率Average Tax Rate 平均稅率計算器：輸入總稅額與總收入，按 ATR = T/Y 求平均稅率，反映整體稅負佔收入比重。Average Tax Rate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 💯 由相鄰級距稅額差與收入差求邊際稅率Marginal Tax Rate 輸入相鄰兩級收入 Y₁、Y₂ 及對應應納稅額 T₁、T₂，按 MTR=(T₂−T₁)/(Y₂−Y₁) 計算邊際稅率，反映收入增加一單位時稅負增加的幅度，用於理解累進稅制的邊際效應。Marginal Tax Rate - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 📊 由稅收總額與 GDP 求宏觀稅負Tax to Gdp 宏觀稅負計算器：輸入稅收總額與 GDP，按 宏觀稅負 = 稅收總額/GDP 求整體稅負水平，用於經濟分析。Tax to Gdp - convert values online, free and instant. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation to... 🛡️ 由繳費基數與社保費率求社保費Social Security Tax 輸入社保繳費基數與綜合費率，按 保費=繳費基數×費率 計算應繳社保費，用於個人或單位根據工資基數快速估算養老、醫療等社會保險的合計繳費額。Social Security Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 📦 由計稅價格與從價稅率求從價稅Ad Valorem Duty 從價稅計算器：輸入計稅價格與從價稅率，按 T = 計稅價格×稅率 求從價稅，用於進口與消費稅測算。Ad Valorem Duty - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 📈 由資本收益與優惠稅率求應繳稅Capital Gains Effective 輸入資本利得收益金額與適用的優惠稅率，按 T=收益×優惠稅率 計算應繳資本利得稅，適合個人轉讓股票、房產等享受優惠計稅時的稅額快速估算。Capital Gains Effective - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🎁 由贈與額、免稅額與稅率求贈與稅Gift Tax 贈與稅計算器：輸入贈與額、免稅額與適用稅率，按 T = max(贈與額−免稅額, 0)×稅率 求贈與稅，用於財產轉移稅務估算。Gift Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🧾 由銷售額與增值稅率求銷項稅額Vat Output 增值稅銷項稅額計算器：輸入銷售額與增值稅率，按 T = 銷售額×稅率 求銷項稅額，用於一般納稅人申報核算。Vat Output - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 📋 稅額 = 不含稅 × 稅率Vat from Exclusive 輸入不含稅銷售額與增值稅稅率，按 稅額=不含稅×稅率 計算增值稅額並得出含稅總價，用於一般納稅人由不含稅金額直接開具增值稅發票時的價稅換算。Vat from Exclusive - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. ✒️ 稅額 = 憑證金額 × 印花稅率Stamp Duty 印花稅計算器：輸入應稅憑證金額與適用印花稅率，計算應納印花稅，用於合同、產權轉移等憑證稅務核算。Stamp Duty - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 💰 稅額 = 利息 × 稅率Interest Income Tax 利息所得稅計算器：輸入利息所得與適用稅率，計算代扣利息所得稅額，用於個人理財與稅務核算。Interest Income Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🏢 稅額 = 應納稅所得額 × 稅率Corporate Income Tax 輸入企業應納稅所得額與適用稅率，按 稅額=應納稅所得額×稅率 計算應納企業所得稅，用於企業在查賬徵收下根據利潤快速估算所得稅負擔。Corporate Income Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. ✂️ 稅額 = 支付額 × 預提稅率Withholding Tax 預提所得稅計算器：對非居民企業所得按支付額與預提稅率源泉扣繳，輸入支付額與稅率求代扣稅額。Withholding Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 🏠 稅額 = 計稅餘值 × 稅率Property Tax 輸入房產原值、扣除比例與稅率（或從租計徵的租金收入與稅率），計算應納房產稅，支援從價計徵（餘值×稅率）與從租計徵兩種計稅方式，用於持有房產的稅負估算。Property Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools. 📈 資本利得稅計算器Capital Gains Tax 資本利得稅計算器：輸入資產買入價、賣出價與適用稅率，計算資本利得及應納稅額，用於投資稅務核算（參考）。Capital Gains Tax - free online tool. Free online tool on ToolBox — 100% client-side, no data uploaded, no install. Part of the Taxation tools.