Commerce · alternatives · 2026
24 alternatives to CoastIQ
The only retirement calculator that gets your taxes right
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1CF
I wanted to share a simple web app I created recently, which lets you estimate income taxes owed in the US: https://taxsim.app All the calculations occur directly in the browser, and are powered by a Fortran program that has been converted to WASM using emscripten. This calculator was originally developed in the 1970s [1] by the non-profit National Bureau of Economic Research. NBER has been maintaining this F77 codebase for the last 50 years, and uses it primarily for academic research on tax policy. The Fortran source code itself is over 1MB of text, because it codifies both…
2022 · its alternatives →
- 2
Your life in 777 free calculators
2019 · omnicalculator.com · its alternatives →
- 3
- 4
Most retirement calculators either oversimplify things or ask you to link your accounts so they can make money off your data. I wanted something that actually helped me see if I was on track without handing over a bank login, so I built RetireNumber. It's a privacy-first retirement planner. You type in your own numbers. No account linking, no selling your data, no VC. Just me and a subscription. The engine does real math: Monte Carlo with 1,000 runs, historical backtesting to 1928 using Shiller's Yale data, tax-aware withdrawal strategies, and scenario comparison so you can try different…
Feb 2026 · retirenumber.com · its alternatives →
- 5IT
2015 · incometaxcalculator.net.in · its alternatives →
- 6
- 7
Financial Independence / Retire Early (FIRE) Calculator for the UK
2023 · fire.picheta.me · its alternatives →
- 8SR
Use this planner to explore the health of your retirement plan. Estimate your retirement income and explore different investment strategies.
2015 · letscrunchit.com · its alternatives →
- 9
An advanced FIRE calculator with powerful simulations
2025 · theficalculator.com · its alternatives →
- 10
Know your number, coast to retirement
2025 · coast-fire-calculator.com · its alternatives →
- 11
FI Calc is a powerful and flexible retirement calculator for FIRE. Simulate retirements using historical data that spans more than 100 years.
2020 · ficalc.app · its alternatives →
- 12RC
2020 · lunchmodel.com · its alternatives →
- 13
Financial calculators for FIRE, crypto & Canadian investors
Jun 2026 · ilovemoney.net · its alternatives →
- 14
A modern and simple retirement (or FIRE) calculator.
2024 · its alternatives →
- 15
MoneyOnFIRE▲21We’re Scott and Sunny—two long-time personal finance nerds. When we met 6 years ago we compared our personal finance spreadsheets. Ours were packed with macros, scenarios, and tax modeling—but even then, found they were not complete. Planning for financial independence is hard, and the cost of mistakes is high. So we built the tool we always wanted: MoneyOnFIRE. MOF calculates a personalized, tax-aware roadmap to financial independence—across account types, life goals, and withdrawal strategies. It shows you not just if you can achieve financial indepdendence, but how, when, and what to…
2025 · moneyonfire.com · its alternatives →
- 16
I got frustrated with every financial calculator requiring an email before showing results. So I built alternatives. 28 calculators - retirement, FIRE, compound interest, rent vs buy, debt payoff, etc. Everything runs client-side. No data tracking - full privacy.
May 2026 · financialaha.com · its alternatives →
- 17
- 18
All-in-one AI tool for tax, savings, and investment planning
2025 · omnicalculator-eta.vercel.app · its alternatives →
- 19RC
A Portfolio Rebalancing and Tax Optimization Calculator
2016 · rebalancecalc.com · its alternatives →
- 20
Free & Powerful Portfolio Simulations For Everybody
2021 · honestmath.com · its alternatives →
- 21
Free financial calculators for UK, US, Canada, India & Aus
Jun 2026 · wealthcalculatorhub.com · its alternatives →
- 22
35 free financial calculators for 8 countries
Jun 2026 · finzotools.com · its alternatives →
- 23MA
The calculator quickly shows you how long your nest egg will last, given a constant withdrawal. It automatically shows you a safe withdrawal rule to have your capital last forever.
2024 · myfire.app · its alternatives →
- 24
Professional-grade financial calculators for US, UK, CA & AU
Jul 2026 · taxdebtwealthsuite.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →