CostWise

    Where Does Your Paycheck Actually Go?

    Updated

    "I make decent money but somehow nothing's left at the end of the month." It's the most common money complaint there is — and it's almost never about income. Enter your take-home pay and every fixed and lifestyle expense below to see exactly where it goes, your real savings rate, and how your split compares to the 50/30/20 benchmark.

    Fixed costs

    Lifestyle & variable spending

    Optional — for interpretation only, doesn't change the figures above

    Total spent
    $3,700
    Money left
    $300
    Savings rate
    8%
    Tight — small leaks matter — that's $3,600 a year if nothing changes.
    How this was calculated
    Fixed costs (rent, utilities, insurance, transport)
    $2,300
    Lifestyle spending (food, eating out, subscriptions, shopping, fun, other)
    $1,400
    Total spent
    $3,700
    Take-home pay − total spent
    $300
    Money left ÷ take-home pay × 100
    8%
    Fixed share of take-home
    57%
    Lifestyle share of take-home
    35%

    What is genuinely left over

    On $4,000 a month you spend $3,700 (57% fixed, 35% lifestyle), leaving $300 — a 8% savings rate, which is $3,600 a year if nothing changes.

    Your split vs. the 50/30/20 rule
    57% / 35% / 8%

    The rule targets roughly 50% needs / 30% wants / 20% savings. Your fixed costs alone are already above the 50% needs target, which squeezes what's left for saving no matter how careful the lifestyle spending is.

    Months to a 3-month emergency fund
    37.0 mo

    A 3-month fund at your $3,700/month spending is $11,100. Saving $300/month gets you there in about 37.0 months.

    Extra saved per year from your expected raise
    $120

    A 3.0% raise on $4,000 is $4,120/month. If spending stays flat, your savings rate moves from 8% to 10%.

    Fixed costs are $2,300 (57% of take-home) and lifestyle spending is $1,400 (35%). Neither category is dominating the paycheck, which usually means the fastest wins are a handful of specific, forgettable line items rather than one big structural cost.

    Your regular savings rate of 8% is the number worth tracking month to month, because it strips out one-off income and shows the pattern that actually repeats. A 15% rate held steady for years outperforms an occasional windfall that gets spent the month it arrives.

    How to widen the gap between income and outgoings

    • Cut one recurring subscription or membership$1,200/yr

      You currently list $100/month in subscriptions and memberships. Cancelling even one unused service moves straight into money left, at $600 a year for a 50% cut.

    • Reduce eating out and delivery by a quarter$750/yr

      At $250/month, a 25% cut is $63 a month back into savings without eliminating the category entirely.

    • Automate a transfer equal to your current savings rate$300/mo protected

      Moving $300 to savings the day you're paid removes the temptation to let it get absorbed by lifestyle creep before month-end.

    • Cap shopping and impulse buys at a fixed monthly numberup to $720/yr

      You list $200/month here. A firm cap 30% below that is a realistic, sustainable target for most households.

    • Shop your insurance and transport costs annually$1,380/yr potential

      Fixed costs of $2,300/month rarely get renegotiated. Even a 5% reduction across insurance and transport is $115 a month, $1,380 a year, with no lifestyle sacrifice.

    • Keep fixed costs flat when your raise lands$120/yr if spending stays flat

      A 3.0% raise is worth $120/month before any spending changes. Letting fixed and lifestyle costs creep up with it is the single most common reason a raise never shows up in the savings rate.

    Two salaries, two amounts left

    $5,000/month take-home, moderate lifestyle spend

    Take-home pay
    $5,000
    Fixed costs
    $2,700 (rent $1,800, utilities $400, insurance $200, transport $300)
    Lifestyle spend
    $1,450 (groceries $600, eating out $300, subscriptions $150, shopping/fun/other $400)

    Total = $2,700 + $1,450 = $4,150 -> Left = $5,000 - $4,150 = $850 -> Rate = 850/5000 = 17%

    $850 left a month, a 17% savings rate

    A 17% rate is genuinely good, but it's not '$5,000 a month' levels of free — fixed costs (54%) already exceed the 50% needs benchmark, so more room comes from the structural side, not the lifestyle side.

    $3,200/month take-home, tight budget

    Take-home pay
    $3,200
    Fixed costs
    $2,100 (rent $1,400, utilities $250, insurance $150, transport $300)
    Lifestyle spend
    $950 (groceries $400, eating out $200, subscriptions $80, shopping/fun/other $270)

    Total = $2,100 + $950 = $3,050 -> Left = $3,200 - $3,050 = $150 -> Rate = 150/3200 = 4.7%

    $150 left a month, a 4.7% savings rate

    Under 5% counts as living paycheck to paycheck on this calculator. With fixed costs already at 66% of take-home, cutting the $80 of subscriptions and $200 of eating out roughly doubles the amount left over, from $150 to about $290.

    Content last updated: September 17, 2026

    How this calculator works, assumptions, and sources

    How this calculator works
    Formula

    Fixed = rent/mortgage + utilities + insurance + transport. Variable = groceries + eating out + subscriptions + shopping + entertainment + other. Total spending = fixed + variable. Money left = take-home pay − total spending. Savings rate = money left ÷ take-home pay × 100.

    Assumptions
    • The salary field is net take-home pay, not gross salary.
    • Every expense field is a monthly recurring amount.
    • Irregular annual expenses such as yearly insurance are divided by 12 before entry.
    • The optional raise percentage and one-off income fields never alter the core spending or savings-rate figures.
    Default values & where they come from
    • Take-home pay: $4,000/month.
    • Fixed costs — rent/mortgage $1,500, utilities $300, insurance $200, transport $300.
    • Variable costs — groceries $500, eating out $250, subscriptions $100, shopping $200, entertainment $150, other $200.
    • Typical spending ratios cross-checked against BLS Consumer Expenditure Surveys.
    Limitations
    • Does not account for irregular annual expenses unless you average them into a monthly figure yourself.
    • Does not distinguish essential from discretionary spending within a single category.
    • Does not adjust for pay frequency — biweekly pay must be converted to a monthly figure before entry.
    • Does not model taxes, since the input is expected to be post-tax take-home pay.
    When not to rely on this calculator
    • Not a substitute for a full zero-based budget if your income is irregular.
    • Do not enter gross salary — the savings rate will be overstated significantly.
    • Do not treat the projected-raise figures as a forecast; they assume spending stays perfectly flat.
    Sources

    Corrections welcome — see our corrections policy and editorial policy.

    Take-home pay questions

    How is my savings rate calculated?
    Savings rate is money left divided by take-home pay, times 100. Money left is take-home pay minus every fixed and variable field you enter — rent, utilities, insurance, transport, groceries, eating out, subscriptions, shopping, entertainment and other. On $4,000 take-home with $2,300 fixed and $1,400 variable, that's $300 left, a 7.5% rate. The rate only ever reflects the categories you fill in, so leaving out a real expense (an irregular bill, a side subscription) will overstate it.
    Should I use gross salary or take-home pay?
    Take-home pay — the amount that actually lands in your bank account after taxes, retirement contributions and insurance premiums are already withheld. If you enter gross salary instead, every downstream figure (money left, savings rate, fixed and lifestyle share) will be inflated, because it hasn't accounted for the roughly 15-30% typically removed before you ever see the money. This calculator does not add or remove taxes itself; the accuracy of the whole result depends on this one input being your real deposit amount.
    What counts as fixed versus lifestyle spending?
    Fixed costs here are rent or mortgage, utilities, insurance and transport — the four fields that recur at a similar amount whether or not you change behavior day to day. Everything else (groceries, eating out, subscriptions, shopping, entertainment, other) is grouped as lifestyle/variable, because you have more month-to-month control over it. The split matters because a high fixed share (above roughly 60%) needs a structural fix like moving or refinancing, while a high lifestyle share responds to smaller, faster changes.
    How does this compare to the 50/30/20 rule?
    The 50/30/20 rule targets roughly 50% of take-home on needs, 30% on wants and 20% on savings. This calculator computes your actual fixed share, lifestyle share and savings rate from the numbers you enter, so you can compare your real split against that target directly rather than guessing. If your fixed share already exceeds 50% before any lifestyle spending, hitting a 20% savings rate has to come out of the remaining 30% or less, which is worth knowing before setting a savings goal.
    What does the raise percentage field do?
    It's for interpretation only and never changes your current savings rate, money left, or verdict. It projects what your take-home pay would become at your entered annual raise rate, then recalculates what your savings rate would be if your spending stayed exactly flat. This shows how much of a raise actually becomes extra savings versus how much tends to get absorbed if fixed and lifestyle costs creep up alongside income — a pattern usually called lifestyle inflation.
    What is the one-off annual income field for?
    It captures irregular income — a bonus, tax refund, or freelance payment — that isn't part of your regular monthly take-home pay. It's shown only in the interpretation as extra runway or extra annual savings potential, and it is never added into the monthly money-left figure or the savings-rate percentage, since those describe your recurring, repeatable monthly position rather than a one-time windfall.
    How many months of expenses could my leftover cover?
    Divide a target emergency fund (commonly 3-6 months of your total monthly spending) by your monthly money left to see how many months of saving it would take to reach it. For example, with $2,300 fixed and $1,400 variable spending ($3,700/month) and $300 left over, a 3-month fund of $11,100 would take 37 months of saving at the current rate — which is exactly the kind of gap a higher savings rate closes faster than a higher salary alone.

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    This page was last updated September 17, 2026. Spotted an error? Report it via our corrections policy.