Legacy Investing CalculatorsShow

Monthly budget planner

What is left after regular income and expenses?

Your numbers

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Left this month

$1,795

Total expenses$4,005
Implied savings rate30.9%

Tip. If leftover is thin, cut “other” before housing when leases are fixed.

Assumptions

  • All amounts are monthly take-home dollars you enter.
  • Leftover = income − housing − food − transport − debt − other.
  • Savings rate = leftover ÷ income.

Explore the numbers

Examples and charts

Start with a scenario, then read the response curve to see which input actually moves the answer.

Example 1

Balanced month

Typical dual-category spend with room to save about 15%.

Left this month

$1,795

Example 2

Tight housing market

Rent takes a bigger bite; leftover shrinks fast.

Left this month

$1,145

Example 3

Debt payoff push

Higher debt payment, lower discretionary “other.”

Left this month

$1,650

Sweeps housing from half to one and a half times your value, holding everything else fixed.

Response curve

How housing moves the result

Left this month

$1,795

$1.0k$1.5k$2.0k$2.5k$1.0k$1.5k$2.0k$2.5k
Chart axis: HousingNow $1.9k$1.8k

What this calculates

Shows what remains after the big recurring categories. Use take-home pay, not gross, so the leftover is money you can actually assign to savings or goals.

How to use it

  1. Start with monthly take-home income and work down the form, or load an example to begin from a realistic case.
  2. Read the headline result alongside the supporting rows, which show the intermediate figures behind it.
  3. Check the assumptions. They decide what the number includes and, more importantly, what it leaves out.
  4. Sweep housing on the response curve to see how much it actually moves the answer.
  5. Run a cautious case as well as an optimistic one before using the estimate in a decision.

Common mistakes

  • Using gross pay and wondering why the leftover feels fake.
  • Forgetting irregular annual bills that arrive as surprise “other.”
  • Treating a positive leftover as saved. Money not moved out of checking usually gets spent.

Formula

Leftover = income − housing − food − transport − debt − other

Inputs

  • Monthly take-home income
  • Housing
  • Food
  • Transport
  • Debt payments
  • Everything else

FAQ

Should I use gross or take-home income?

Take-home. This planner is about cash you can spend after tax and paycheck deductions.

Where do annual costs like insurance or gifts go?

Average them into a monthly “other” or use the sinking fund calculator for a dedicated reserve.

What savings rate is “good”?

It depends on goals and cost of living. Many planners aim for 10 to 20% of take-home; use the personal savings rate tool to track it directly.

My leftover is positive but my account never grows. Why?

Almost always because irregular spending is missing: annual renewals, car repairs, medical bills, gifts. Track three months of statements and fold the average into “other.”

Are these numbers financial advice?

No. They are educational estimates based on the inputs and assumptions on this page. Confirm important decisions with a qualified professional and your own documents.

The questions people usually ask next.