Modern Niche World MNW

Money & planning

Self-Employed Budget Planner

List the income you can realistically count on and your fixed costs, reserve tax and savings up front, and see what is genuinely safe to spend.

A realistic typical month — not your best one ever.

Costs that arrive whether or not you land a client.

Set aside from income first.

Your buffer and future self.

Frequently asked questions

My income is different every month. What do I enter?
Enter a conservative, realistic expectation for a typical month — closer to your recent average than your best month ever. The planner works out what is left from income you can reasonably count on, so a cautious figure gives a cautious answer.
Why set aside tax and savings before working out what is safe to spend?
Because money you have already promised to the tax office or your future self was never really yours to spend. Reserving it first means the "safe to spend" figure is genuinely safe — there is no nasty surprise waiting at quarter-end.
What counts as a fixed cost?
Anything that arrives whether or not you land a client this month: rent or mortgage, insurance, loan repayments, core software subscriptions, phone and internet. Variable, optional spending (eating out, new gear) comes out of the safe-to-spend figure, not here.
What does "Short" mean?
That on a typical month, your expected income doesn't cover the tax and savings you set aside plus your fixed costs. The figure shown is the size of that gap. It's information about your numbers, not a verdict — change any input to see how the gap moves.

These calculators give estimates to help you think — not financial, tax or legal advice. Double-check anything that matters with a professional.