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What's left over each month

Everything else starts from one number: what's left after the money that's already spoken for.

3 minutesYou'll need: Take-home pay and your recurring monthly costsNothing you type leaves your browser

Working sketchINPUT → RESULT
Inflow is divided among obligations, minimums, and room still available.

Start here: replace the example figures with yours, read the main result, then change one number at a time to see what matters most.

Money coming in
$4,800.00
Living costs & spending
$2,800.00

Leave loan and card minimums out of this list. They are read from What you owe and reserved separately below.

Left over each month

That leaves $1,350 a month that isn't already committed — the figure the debt, investing, and savings allocation tools start from.
$4,800 coming in, $2,800 in listed costs, plus $650 in debt minimums.

What changes the answer

Only two things move this: what arrives, and what's already promised to something else. Adding income moves it slowly; finding a committed cost you no longer want moves it immediately and permanently.

The line people most often leave out is the irregular one — a car repair, a wedding, a flight home, the annual renewal that always arrives at a bad moment. Averaged over twelve months it belongs in the list above, and putting it there is usually what makes the rest of the plan survive contact with a real year.

These calculators are educational estimates based on the numbers and assumptions you enter. Real results vary, and projections are not guarantees. Nothing here is personalized investment, tax, or legal advice.

Where that money could go

Each allocation tool above starts from the $1,350 a month above, and each lets you override it.

See the assumptions behind this estimate

What the calculator assumes

  • Every figure is monthly. An annual cost like insurance is easiest to enter as a twelfth of itself.
  • Debt minimums are read from the payoff planner and reserved separately, so don't repeat them in the living-cost list here.
  • Monthly room means take-home income minus listed living costs and minimums on debts that still have a balance.
  • This is a picture of a typical month, not a budget or a tracker. Nothing here connects to a bank account.
  • Income means take-home pay — what actually arrives, after tax and deductions.

What it leaves out

  • Irregular spending — repairs, gifts, travel, an annual renewal — is easy to leave out, and leaving it out is the usual reason a plan slips. Enter a monthly average for it.
  • Income that varies month to month averages badly. If yours does, use a figure you can rely on in a quiet month rather than a good one.
Save this set of numbers

Give these figures a name and you can come back to them, or set up a second version to compare against. One saved set covers every calculator here, and all of it stays in this browser.

Useful next steps

This result is monthly. The next useful move is to check whether the same dollars arrive before the bills do, then decide what the first uncommitted dollars should protect.

Public resources only. Networthy has no financial relationship with these sources.

An estimate is a starting point. Test the assumption doing the most work, then take the next question in order.

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