Money tools for a company of one
You are the finance department.
Writing, tools, and guides for people who work for themselves — from a CPA who left corporate finance to build his own thing. No investors, no board, no team. Just the numbers that decide whether you get another month.
Written by Gustavo MenaEst. 2026
Articles
Weekly · free
One deep dive a week on the money side of working for yourself. Taxes, pricing, runway, and the decisions nobody warns you about.
The tax bill nobody warns you aboutPlanned
Self-employment tax, why your first year surprises you, and the one habit that prevents it.
Sep
Revenue is a probability. Expenses are a decision.Planned
The one rule that reorganizes how you think about every dollar leaving your account.
Sep
How long can you actually keep going?Planned
Runway isn't how much money you have. It's how many months you own. Five minutes to calculate.
Oct
ArchivePlanned
Full back catalog, searchable, hosted here rather than off-site so the writing compounds on this domain.
Q4
Tools
Free & members
Calculators and templates that answer one question each. Built because the article explaining the concept isn't the same as the thing that does the work.
Self-employment tax calculatorPlanned
Enter your profit, see what you actually owe — both halves, plus the income tax layer.
Sep
Bookkeeping spreadsheetPlanned
A Schedule C-shaped ledger for people who'd rather not use an app yet.
Oct
Quarterly set-aside plannerPlanned
How much to move out of reach after each payment, and what to send before each deadline.
Q4
Runway calculatorPlanned
Your savings, your real monthly cost, and the number of months you own.
Q4
Mileage & deduction finderPlanned
The deductions most solo filers leave on the table, priced in tax saved.
2027
Guides
Buy once · or included
Longer work, sold on its own. Each guide is also included with membership when that opens.
The Bootstrapper's CFOPlanned
The whole manual — oxygen and fuel, the iron law, runway, the money ladder, pricing, and taxes without the fear. 14 chapters.
Nov
30 Days of Schedule CPlanned
One expense line a day by email. What it means, what surprisingly counts, what people get wrong.
Dec
MembershipPlanned
Every tool, every guide, one payment. Opens once there's enough here to be worth it.
2027
Get the weekly article
One email a week on the money side of working for yourself. Leave anytime.
Not wired up yet — connects to the newsletter at launch.