For freelancers & side hustlers
Know exactly what to set aside before the tax bill lands.
Quarterly is a spreadsheet that tracks every dollar you invoice, every expense you write off, and tells you — this week, not next April — how much of your money isn't actually yours.
Spreadsheet kit $39 · Kit + 12-lesson course $79 · One payment, yours forever.
Or try the free set-aside calculator
- Works in Excel & Google Sheets
- No subscription
- No bookkeeping degree

Freelance income is lumpy. Tax deadlines are not.
You guess at what to set aside, then hope it was enough.
Your expenses live in three apps, a shoebox, and your email.
Your accountant asks for a summary and you send a bank export.
The spreadsheet kit · $39
What's inside the kit
Income & invoice log
Log every invoice with client, date, amount and paid status. Chase what's outstanding without digging through email.
Quarterly tax set-aside
Set your rate once. Every payment you log tells you the dollar amount to move into your tax account that week.
Expense tracker with categories
Pre-built categories that map to how self-employment expenses are normally grouped, so nothing gets missed.
Year-end accountant summary
A single clean tab totalling income, expenses by category and tax already set aside. Print it, send it, done.
Inside the file
This is the actual spreadsheet.
Real tabs from the kit, filled with sample numbers for a made-up freelancer. Your copy comes with a few example rows so you can see how it works, then you replace them with your own.





Built by an accountant who reads other people's books for a living.
I'm Josh Harmon. I have an accounting degree and 12+ years in agricultural finance, including 3.5 years as CFO of a farming operation, where I built the reporting that let a CEO and owners steer nine entities against an $85M operating budget. I know what a set-aside that actually reconciles looks like — and what it looks like when nobody kept one.
Quarterly is the same idea, scaled down to one person: the system I'd hand a friend who just started freelancing. One setup tab, then log what comes in and what goes out. Everything else calculates itself. It is not a pretty grid with a few sums in it.
- 1Open the file and set your tax rate and start month.
- 2Log income as you get paid and expenses as they happen.
- 3Read the set-aside figure and move that amount.
- 4Send the year-end tab to your accountant.
The course · included in the $79 bundle
Bookkeeping & taxes for the self-employed.
Twelve short, plain-English lessons that take you from setting up the business to filing the return. Each one ends with a “Do this now” checklist, so you finish with your books actually done, not just a page of notes.
- Freelancer and trades/contractor examples side by side
- 5 templates: chart of accounts, mileage log, job cost sheet, cash flow, compliance calendar
- Links to official IRS sources for current figures
- Read in any browser. No account or app needed
- 01
Setting up the business right
Pick a structure, get an EIN and separate business money from personal.
- 02
Accounting fundamentals
Income, expenses, assets and liabilities, and cash vs. accrual in plain English.
- 03
Record keeping systems
A weekly bookkeeping routine and a receipt system you'll actually keep up.
- 04
Project & job costing
Know what every project or job really costs, and price for profit.
- 05
Invoicing & cash flow
Deposits, progress billing, client contracts and a simple cash flow forecast.
- 06
Hiring help
W-9s, 1099s, contractor vs. employee, and what payroll involves.
- 07
How you're taxed
Self-employment tax, income tax and the QBI deduction, with a worked example.
- 08
Deductions
Vehicles, tools and equipment, depreciation and the home office.
- 09
Tax planning
Quarterly estimates, safe harbor, retirement accounts and when an S corp makes sense.
- 10
Filing step by step
Schedule C, Schedule SE, 1099s and the deadlines that matter.
- 11
State & local taxes
Sales and use tax, licensing and staying compliant where you work.
- 12
Reading your financials
Read a P&L and balance sheet, track a few key numbers, and know when to get help.
Pricing
Pick the tool, or the tool and the know‑how.
The kit does the math. The course explains why the math works and what to do with it, from setting up the business to filing.
The Quarterly kit
$39
One payment. No subscription.
- Income & invoice log
- Expense tracker with categories
- Quarterly tax set-aside calculator
- Year-end accountant summary
- Free updates to the file
Kit + Course bundle
$79
One payment. No subscription.
- Everything in the Quarterly kit
- The Quarterly Course: 12 short lessons
- Record keeping, pricing, write-offs & quarterly taxes
- A short "Do this now" checklist after every lesson
- 5 templates & checklists: mileage log, job cost sheet, cash flow & more
- Notes for trades & contractors included
Secure card checkout · instant access after payment · 14-day money-back guarantee
Questions
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