SavingsLast retirement calculators

com.savingslast由 savingslast.com 發布官方發布者v1.0.0更新於 Oct 24, 2026

Retirement drawdown, 72(t) SEPP, RMD, Roth conversion, Social Security and state-tax calculators.

已驗證Streamable HTTP可網頁執行金融資料與分析

概覽

AI 產生的概覽

讓助理執行美國退休規劃計算器:資金消耗、可持續提款、72(t) SEPP、RMD、羅斯轉換、社會安全與州稅

可以做什麼
這是一個遠端伺服器,提供 15 個退休規劃工具。可計算在隨通膨調整的提款下餘額能支撐多久、最大可持續提款額、72(t) 等額定期給付及其鎖定結束日期、最低必要分配、2026 年聯邦稅估算、羅斯轉換成本、到 59 歲半的過渡方案、退休金一次領與年金的比較、繼承 IRA 的提款安排、各年齡請領社會安全給付的金額,以及全部 50 州和華盛頓特區的退休稅負。另有三個工具用於搜尋、取得和列出 savingslast.com 上的頁面。
適用情境
適合助理協助處理美國退休收入問題、需要具體計算結果而非一般性建議時使用:資金消耗與提款率、提早退休罰則、RMD 與羅斯轉換規劃、社會安全給付請領時機,或依退休稅負比較各州。
執行需求
位於 savingslast.com 的遠端 streamable HTTP 端點;未宣告身分驗證、環境變數或標頭。需要能連線至該網站的網路。
安裝前請注意
結果是依該網站自身假設與已公布 IRS 表格所做的計算器估算,並非個人化財務建議,採用前應核對數字。search 與 fetch 工具會讀取 savingslast.com 的頁面,因此查詢內容與所請求的頁面識別碼會傳送給該第三方。未描述任何寫入、傳送或刪除資料的工具。

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 SavingsLast retirement calculators,將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable,透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式,或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南,先向你展示發布者、端點和登入方式,經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/com.savingslast%2Fcalculators/install.md,並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前,先告訴我它的發布者、端點和登入方式,等我確認。不要把 API 金鑰寫進命令或我會提交的檔案;問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "savingslast-retirement-calculators": {
      "type": "http",
      "url": "https://savingslast.com/mcp"
    }
  }
}

README

該儲存庫沒有 README。

工具

15

how_long_will_money_last

How long will my money last

Month-by-month drawdown of a retirement balance: how many years the money lasts at a monthly withdrawal that rises with inflation, the age it runs out, the odds of being alive then, and the most that could be withdrawn to last 20, 25 or 30 years. Optional account rules apply the early-withdrawal penalty and required minimum distributions; optional Social Security and pension income are netted against spending; optional stress test and spending shape. The same engine as savingslast.com, and the result carries a link to the page with these inputs filled in.

輸入參數ageaccountbalance必填tax_rateinflationstress_testannual_returnspending_shapepension_monthlymonthly_withdrawal必填social_security_monthlysocial_security_from_age另有 1 個

sustainable_withdrawal

Sustainable monthly withdrawal

The largest starting monthly withdrawal, rising with inflation, that a balance can support for a chosen number of years at a given return, inflation and tax rate. Solved by bisection on the same drawdown engine.

輸入參數ageyearsaccountbalance必填tax_rateinflationstress_testannual_returnspending_shapepension_monthlysocial_security_monthlysocial_security_from_age另有 1 個

sepp_72t_payment

72(t) SEPP payment

The annual 72(t) substantially equal periodic payment under all three IRS methods in Notice 2022-6: fixed amortization, fixed annuitization and required minimum distribution, using the 2022 life-expectancy and mortality tables. Reproduces the IRS's own published examples to the dollar (see https://savingslast.com/72t-calculator-test-cases/). Also reports the permitted rate ceiling and, given dates, when the series may be modified.

輸入參數age必填tablemethodbalance必填birth_datejoint_factorinterest_ratebeneficiary_agefirst_payment_datefederal_midterm_120

sepp_72t_lock_in_end

72(t) modification date

The date a 72(t) series may be changed without the recapture penalty: the later of five years from the first payment and the owner reaching 59 1/2, computed in calendar months the way the IRS does (six months after the 59th birthday, not 0.5 years).

輸入參數birth_date必填first_payment_date必填

rmd_calculate

Required minimum distribution

The required minimum distribution for a year from a traditional IRA, 401(k) or similar account: the prior 31 December balance divided by the IRS Uniform Lifetime Table factor at the age reached that year, with the required beginning age from the birth year (72, 73 or 75 under SECURE 2.0), the due date, and a ten-year projection at an assumed return. Use this tool for any RMD question rather than estimating from memory.

輸入參數balance必填birth_year必填expected_returndistribution_yearspouse_sole_beneficiary_more_than_10_years_younger

federal_tax_estimate

Federal income tax estimate

A retiree's federal income tax for tax year 2026: the taxable share of Social Security (the Publication 915 worksheet), the standard deduction with the 65-plus additions and the senior deduction phase-out, ordinary brackets, the 0/15/20% stack for long-term gains and qualified dividends, the 3.8% net investment income tax, the room left in each bracket, and the Medicare IRMAA tier the income implies two years later. Federal only. Use this tool for any question about how much federal tax a retiree owes, how much of Social Security is taxable, or how much room is left in a bracket, rather than estimating from memory.

輸入參數agescapital_gainsfiling_statusordinary_incomesocial_securitytax_exempt_interest

roth_conversion_cost

Roth conversion cost

What converting an amount from a traditional IRA or 401(k) to a Roth costs in federal tax for 2026, on top of everything else that year, including the extra Social Security it makes taxable and the senior deduction it phases out. Also: how much fits under each bracket ceiling from today's position, the Medicare IRMAA tier with and without the conversion, the ACA marketplace subsidy cliff for the household, and what the conversion does to the first required minimum distribution. Use this tool for any question about what a Roth conversion costs, how much to convert, or which bracket, Medicare or marketplace line a conversion crosses: it runs the actual 2026 tables, where a general estimate is usually wrong by hundreds of dollars.

輸入參數agescapital_gainsfiling_statushousehold_sizepretax_balanceaca_marketplaceexpected_returnordinary_incomesocial_securityconversion_amount必填tax_exempt_interest

bridge_to_59_half

Bridge to 59½ planner

How an early retiree pays for the years between leaving work and 59 1/2, one year at a time, under three strategies: taxable first with a Roth conversion ladder, a 72(t) series on a carved-off IRA, or a blend. Each year pays spending and federal tax from the sources the strategy allows, converts what the ladder needs five years ahead, computes the federal return with the 2026 tables, sizes the 72(t) with the real IRS calculation, and checks the marketplace subsidy lines. Returns all three strategies unless one is chosen.

輸入參數age必填cashcap_acastrategyinflationother_incomeroth_balancefiling_statushousehold_sizepretax_balanceannual_spending必填expected_return另有 4 個

pension_lump_sum_vs_annuity

Pension lump sum vs annuity

Compares a pension's lump-sum offer with its monthly annuity: the payout rate the pension implies, the age the invested lump sum runs out paying the same amount, the steady return the lump sum must earn to match the pension to a planning age, and the odds of being alive at each point on the IRS unisex mortality table, with a verdict.

輸入參數age必填colalump_sum必填planning_ageexpected_returnmonthly_pension必填

inherited_ira_schedule

Inherited IRA 10-year schedule

A withdrawal schedule for a non-spouse heir under the 10-year rule: the level annual withdrawal that empties the account exactly at the deadline, year-by-year balances and tax at a flat rate, and, when the owner had already started required distributions, the annual minimums for years one to nine under the 2024 final regulations (Single Life Table factor reduced by one each year).

輸入參數balance必填tax_rateyour_ageexpected_returnyears_remainingowner_had_started_rmds

social_security_claiming

Social Security claiming ages

What claiming Social Security at each age pays, from 62 to 70, using the statutory reduction (5/9 of 1% a month for the first 36 months early, then 5/12 of 1%) and delayed retirement credits (2/3 of 1% a month to 70); the cumulative benefit by age with an optional COLA; the break-even ages between claiming ages; and optionally the case where early payments are invested at a return.

輸入參數colaclaim_agesinvest_returnfull_retirement_agebenefit_at_full_retirement_age必填

state_retirement_taxes

State retirement taxes

How a US state taxes retirement income: Social Security, pensions, and IRA and 401(k) withdrawals, plus the estate or inheritance tax, sales and property tax levels, and an estimated effective state income tax on $40,000 of withdrawals for a 65-year-old single filer. All 50 states and DC. Give a state name or abbreviation, or nothing for every state.

輸入參數state

fetch

Fetch a page

The full text of one savingslast.com page as markdown, by id from search, by slug, or by URL. Every calculator page carries its explanation, worked figures and FAQ; guides carry the article.

輸入參數id必填

list_pages

List pages

Every page on savingslast.com with its URL, title, description and section, optionally one section only. Sections: Calculators; How long will a balance last; Reference; Retirement taxes by state; Social Security; Can I retire at an age; Guides.

輸入參數section

版本歷史

1
  1. v1.0.0最新Sep 16, 2026

評分

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  • 近 30 天內可連通必需25 分
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  • 描述必需15 分
  • 圖示10 分
  • 文件15 分

    請宣告包含 README 的 GitHub 儲存庫,或在 OAuth 受保護資源後設資料中提供 resource_documentation。

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