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Jere Salmisto
Founder · CalcFi and Autonomatica
I build utility-driven financial tools and quantitative automation systems designed to make complex decisions clearer, faster, and more actionable. My work sits at the intersection of systematic workflows, financial data processes, and consumer-facing product design.
At CalcFi, I focus on practical tools across personal finance, planning, and decision support. At Autonomatica, I build rule-based systems, backtesting logic, and automation for high-signal decision environments. Before CalcFi I ran operations and commercial execution as CEO and founder of several companies, so the engineering is grounded in running real businesses end to end.
Every calculator on CalcFi traces to a primary source — IRS publications, Federal Reserve data, Treasury tables, CFPB guidance, BLS statistics. The formula is always visible. No signup. No paywall. Free forever.
Why CalcFi exists
Most money calculators online are unreliable: stale tax brackets, hidden assumptions, affiliate-driven results, no visible math. The same search pulls up the same recycled formulas wrapped in ads, with nothing explaining where the numbers come from. That is not good enough when the answer shapes a mortgage, a paycheck, or a retirement plan.
CalcFi was built to fix that. Every calculator on the site is grounded in a primary public source — IRS publications, Federal Reserve series, Treasury tables, BLS statistics, CFPB guidance, Freddie Mac, HUD. The formula is shown on the page. The inputs are auditable. The result can be reproduced by hand. No signup, no paywall, no affiliate ranking, no sponsored answers.
The goal is utility: make the math of personal finance legible to anyone who needs it, so the user understands the decision instead of trusting a black box. Mortgages, taxes, retirement, debt, salaries, home costs — 300+ tools today, maintained on an annual update cadence, reviewed every quarter. That is the whole product. Build. Solve. Create utility.
Background
Builder of quantitative automation systems and systematic tooling through Autonomatica — rule-based workflows, backtesting logic, financial data processes, automation for decision environments.
Prior CEO and sales-leadership experience across multiple companies, responsible for growth, operational decision-making, and building the systems required to run a business day to day.
Tampere University of Applied Sciences.
Available for commentary
Journalists, podcasts, and conference organizers — topics I can speak on with first-hand systems experience:
- ·Utility-driven financial product design
- ·Quantitative automation and systematic workflows
- ·Backtesting and strategy logic
- ·Financial data processes and calculator methodology
- ·Decision tools across mortgages, taxes, retirement, debt, savings
- ·Consumer finance tooling and usability
- ·Finance-focused SEO and content architecture
- ·Building and operating companies as a founder
For quotes or expert commentary, email hello@calcfi.app or message on LinkedIn. Response within 24 hours on weekdays.
How CalcFi is built
- Primary-source citations. Every calculator links to the IRS publication, Fed series, Treasury table, CFPB guide, or BLS statistic it uses. We cite the rule-makers, not second-hand blogs.
- Visible formulas. The math is shown on the page. Users can verify the calculation themselves.
- Annual update discipline. 2026 tax brackets, contribution limits, and inflation-adjusted thresholds are refreshed as the IRS and Treasury publish them.
- Free forever. No paywall, no signup requirement.
- Operated by Autonomatica. Long-term maintenance, tooling, and data pipelines come from the same team building the backtesting and automation systems.
Frequently asked questions
Transparency on credentials, data, funding, and how we handle errors.
Are you a licensed financial advisor?
No. Jere Salmisto is not a CFP, CFA, or CPA. CalcFi publishes educational calculators with cited math — it is not financial advice. For personalized advice, consult a fiduciary advisor or licensed tax professional.
Where does your data come from?
Every number on CalcFi traces to a primary public dataset: IRS publications and revenue procedures for tax figures, Bureau of Labor Statistics for wage and CPI data, U.S. Census Bureau for income and cost-of-living, the Federal Reserve and FRED for interest rates, Freddie Mac for mortgage benchmarks, and HUD for housing-related thresholds. We do not use scraped data, crowd-sourced inputs, or paid data feeds. See the methodology page for the full source list.
How often is data updated?
Interest-rate and live-market benchmarks are refreshed nightly from FRED and Freddie Mac. Wage and cost-of-living data refresh on BLS and Census publication cadence (quarterly to annual). Tax brackets, contribution limits, and standard deductions are updated annually when the IRS publishes them — usually October/November for the following tax year. Editorial review of each calculator is scheduled every three months.
Who funds CalcFi?
CalcFi is bootstrapped and self-funded through Autonomatica. There is no venture capital, no affiliate revenue on calculator pages, no paid product placement, and no sponsored results. CalcFi sells no financial products of its own. This is deliberate — it keeps the calculations and recommendations honest.
What qualifies Jere to build a finance site?
Jere builds and operates quantitative trading systems day-to-day: rule-based strategies, backtesting pipelines, and live-market automation. That is applied finance-math experience, not licensed advisory experience — and CalcFi is framed honestly on that basis. The calculators are cited-first so the math stands on the source, not on the author's title.
How do I report an error?
Email hello@calcfi.app with the page URL, the input values you used, and the result you expected. Corrections are prioritized above new features. If a calculator is wrong, it gets fixed the same day or the page is temporarily taken offline until it is.
Do you have a conflict-of-interest policy?
Yes. CalcFi does not accept affiliate revenue on calculator pages, does not promote or rank financial products, and does not run sponsored placements inside calculator results. A small number of blog pages may link to third-party tools; those links are labeled and do not influence calculator output.