About NJ Creative
NJ Creative makes simple money tools for freelancers, creators and anyone whose income changes from month to month.
We built these calculators because most budgeting tools assume a fixed paycheck. When your income swings between a great month and a slow one, you need different habits: set aside tax first, smooth your income with a buffer, keep a lean budget for slow months, and pay down debt with a plan you can stick to.
What you'll find here
- Debt Snowball vs Avalanche Calculator: Compare snowball and avalanche for all your debts. Get your debt-free date and the interest you save.
- Freelancer Tax Set-Aside Calculator: See how much to save from each client payment, every month and every quarter.
- Irregular Income Pay-Yourself-a-Salary Calculator: Turn lumpy freelance income into a steady paycheck and size your buffer account.
- 52-Week Savings Challenge Generator: Make a custom 52-week challenge with dates, check-offs, a printable chart and CSV export.
- 50/30/20 and Lean vs Full Budget Calculator: Split income with 50/30/20 and build a lean budget for slow months and a full one for good months.
How we keep it useful and honest
- Free and private. Every calculation runs in your browser and nothing you type is sent to us.
- Transparent math. Each page explains the formula and assumptions it uses, and our calculations are checked against hand-worked examples.
- No hype. These are planning tools, not financial or tax advice. See the disclaimer.
How the site is funded
We also sell a paid Google Sheets template, the Freelancer Budget & Debt Payoff Tracker, which puts all of these tools into one spreadsheet you can use all year. Buying it supports the free calculators. We may also show ads in the future, and if we do they'll always be clearly separate from the tools.
Contact
Questions, a bug, or an idea for a calculator? Message us through our Gumroad profile.
Last updated 2026-10-08.