SavingsLast retirement calculators

com.savingslast由 savingslast.com 发布官方发布者v1.0.0更新于 Oct 24, 2026

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

已验证Streamable HTTP可网页运行金融数据与分析

概览

AI 生成的概览

让助手运行美国退休规划计算器:资金消耗、可持续提款、72(t) SEPP、RMD、罗斯转换、社保与州税

可以做什么
这是一个远程服务器,提供 15 个退休规划工具。可计算在随通胀调整的提款下余额能维持多久、最大可持续提款额、72(t) 等额定期支付及其锁定结束日期、最低必需分配、2026 年联邦税估算、罗斯转换成本、到 59 岁半的过渡方案、养老金一次性领取与年金的比较、继承 IRA 的提款安排、各年龄领取社保的金额,以及全部 50 个州和华盛顿特区的退休税收。另有三个工具用于搜索、获取和列出 savingslast.com 上的页面。
适用场景
当助手协助处理美国退休收入问题并需要具体计算结果而非泛泛建议时适用:资金消耗与提款率、提前退休罚则、RMD 与罗斯转换规划、社保领取时机,或按退休税收比较各州。
运行要求
位于 savingslast.com 的远程 streamable HTTP 端点;未声明身份验证、环境变量或请求头。需要能访问该网站的网络连接。
安装前请注意
结果是基于该网站自身假设和已公布 IRS 表格的计算器估算,并非个性化财务建议,采用前应核实数字。search 和 fetch 工具会读取 savingslast.com 的页面,因此查询内容和请求的页面标识会发送给该第三方。未描述任何写入、发送或删除数据的工具。

安装

在 SourceWeft 中

  1. 打开 控制台中的 SavingsLast retirement calculators,将其添加到工作区。
  2. 为需要使用其工具的对话启用该服务。

Web executable,通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。

交给智能体安装

把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体,或 SourceWeft 对话中。智能体会读取该服务器的安装指南,先向你展示发布者、端点和登录方式,经你同意后再把它添加到你的客户端。密钥不会写进任何命令。

阅读 https://sourceweft.com/mcp/com.savingslast%2Fcalculators/install.md,并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前,先告诉我它的发布者、端点和登录方式,等我确认。不要把 API 密钥写进命令或我会提交的文件;问我密钥应从哪里获取。

查看智能体所依据的安装指南

其他 MCP 客户端

把它添加到你客户端的 mcpServers 配置中。

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

README

该仓库没有 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withdrawal that rises with inflation, the age it runs out, the odds of being alive then, and the most that could be withdrawn to last 20, 25 or 30 years.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.

输入参数ageaccountbalance必填tax_rateinflationstress_testannual_returnspending_shapepension_monthlymonthly_withdrawal必填social_security_monthlysocial_security_from_age另有 1 个

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.

输入参数ageyearsaccountbalance必填tax_rateinflationstress_testannual_returnspending_shapepension_monthlysocial_security_monthlysocial_security_from_age另有 1 个

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.

输入参数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).

输入参数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.

输入参数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.

输入参数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.

输入参数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.

输入参数age必填cashcap_acastrategyinflationother_incomeroth_balancefiling_statushousehold_sizepretax_balanceannual_spending必填expected_return另有 4 个

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.

输入参数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).

输入参数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.

输入参数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.

输入参数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.

输入参数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.

输入参数section

版本历史

1
  1. v1.0.0最新Sep 16, 2026

评分

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