Which Paycheck Should Cover Each Bill?
The short answer: each bill is covered by the last paycheck that arrives on or before its due date. Enter your paydays and your bills below and the calculator does that assignment for you, then shows it as a bill due date calendar and paycheck by paycheck, with what is left on each paycheck and any pay period that cannot carry what has landed on it.
Paycheck allocation calculator and bill calendar
Enter your paydays and your bills, and optionally your savings goals. Each bill is assigned to the last paycheck that arrives on or before its due date; savings come out of what each paycheck has left after its bills. Nothing is sent anywhere.
Add money you already have (optional)
Leave these blank and the running total starts from $0: nothing is assumed to be in your account.
Your bills
One row per bill, with its next due date. A monthly bill repeats on that day of every month across the whole planning window (on the last day of a shorter month); weekly and every-2-weeks bills repeat every 7 or 14 days from it; a one-time bill appears once.
Add savings goals and an emergency fund (optional)
Savings come out of what each paycheck has left after the bills it covers. A paycheck that cannot fund its planned savings is shown as short, never as money left over. Not sure of an emergency target? The emergency fund calculator works it out from your essential expenses.
Emergency fund
- Pay periods in view
- 5
- Bills assigned
- $3,495.00
- Overloaded periods
- 0
Coming up
- Wed, Nov 18 Car payment $340.00 from the Mon, Nov 9 paycheck
- Sun, Nov 22 Electric $120.00 from the Mon, Nov 9 paycheck
- Tue, Dec 1 Rent $1,250.00 from the Mon, Nov 23 paycheck
- Tue, Dec 8 Phone $75.00 from the Mon, Dec 7 paycheck
- Fri, Dec 18 Car payment $340.00 from the Mon, Dec 7 paycheck
- Tue, Dec 22 Electric $120.00 from the Mon, Dec 21 paycheck
This is a bill allocation, not a whole budget. Paychecks are expected, not received, and what is left on each one still has to cover groceries, fuel, and everything else you have not entered here, so treat it as the ceiling those things come out of rather than spending money.
The bills it starts with are an example. Replace them with yours, or remove them and add your own. Switch between the calendar, the paycheck-by-paycheck list and a printable summary under the results.
Why a monthly total hides the problem
Add your bills up for the month and the number tells you whether the month works. It tells you nothing about whether a particular week does.
A $3,600 monthly income against $2,100 of bills looks comfortable. Split it into two paychecks of $1,800 and put rent of $1,250 plus a $340 car payment in the same half of the month, and one of those paychecks has $210 left to cover two weeks of groceries and fuel while the other has $1,500 doing very little. Nothing is wrong with the month. One of the pay periods is broken.
That is what this calculator looks for. It is the same reason Pocket Runway plans by pay period rather than by calendar month.
The rule it uses
A bill is assigned to the last paycheck that arrives on or before its due date.
Two details in that sentence matter:
- Last, not first. Money that arrives closer to the due date is money that has survived everything else in between. Assigning rent to a paycheck three weeks out means three weeks of opportunity to spend it.
- On or before. A bill due on payday is treated as covered by that day's paycheck. If your bank posts the deposit and the autopay on the same morning and the order is not guaranteed, treat that as a same-day race and fund it from the previous paycheck instead. The calculator shows the paydays, so you can move the bill a day in the form and see the difference.
A bill due before the first paycheck in the window is not assigned to anything. It is listed separately, because the money for it has to come from what is already in your account, and quietly attaching it to a future paycheck would hide exactly the problem worth seeing.
When one paycheck cannot carry the bill
Rent is usually the culprit, because it is often larger than one paycheck's spare capacity.
Splitting it deliberately is the standard fix: set aside roughly half from the paycheck before, keep it somewhere you do not spend from, and pay the whole amount from the check the calculator assigns it to. The key word is deliberately. Half of rent sitting in a checking account alongside ordinary spending money gets spent; the same amount in a separate savings account does not.
The other fix is moving the due date. Many landlords, lenders and utilities will change a due date on request, and moving one bill by five days can rebalance a whole schedule permanently. It is a phone call, and it is worth making before rearranging your spending around the problem.
The rent split calculator works out that per-paycheck amount for rent from your real paydays, on a page that also walks through the rent case on each pay schedule. Budgeting when payday falls after rent covers the situation where the due date lands before the money does.
Step by step: bills that fall between paychecks
A bill due between two paydays is paid by the paycheck before it. That sounds obvious, but it means the money for a bill due on the 1st has to survive two weeks of everyday spending first. Here is how to plan for it, with a worked example. Enter your own paydays and bills in the calculator above to run the same steps.
The example. Take-home is $1,700 every other Friday, with paydays on March 5 and March 19, 2027, and the next on April 2. Today is March 1 and there is $200 in checking. The bills:
- Streaming $15, due March 3
- Phone $70, due March 10
- Utilities $150, due March 15
- Car payment $340, due March 25
- Insurance $120, due March 28
- Rent $1,300, due April 1
1. Pay what is due before your next paycheck from the money you have now. The $15 due March 3 arrives before any paycheck does, so it comes out of the $200, leaving $185. The calculator lists these bills separately for that reason: no future paycheck can cover them.
2. Give every later bill to the last paycheck on or before its due date. The March 5 check covers March 5 to 18: phone and utilities, $220. The March 19 check covers March 19 to April 1: car payment, insurance and April 1 rent, $1,760.
3. Read each pay period, not the total. Across both checks, $3,400 comes in and $1,980 goes out, so $1,420 is spare. The March 19 check, though, carries $1,760 on $1,700 of pay: $60 short, with 14 days still to live on. The March 5 check has $1,480 left over. Nothing is wrong with the month. One pay period is broken.
4. Hold money back from the earlier check. Set aside $770 of rent from the March 5 check and the remaining $530 from the March 19 one. Each check now commits $990 and keeps $710 for its 14 days, about $50.71 a day.
5. Keep the set-aside where you do not spend from. $770 held for rent in the same checking account as your grocery money tends to become grocery money. A separate savings account, or at least a balance you write down and never count as spendable, keeps it intact. The daily spending allowance calculator takes it out of the figure it shows you as "planned savings and transfers".
6. Redo it when the dates move. Biweekly paydays drift through the month, so next month a different bill may be the one that falls just before payday.
What the calculator shows for this example. The March 19 paycheck is marked as $60 short, and the running total stays positive the whole way ($1,665 after March 5, $1,605 after March 19). That combination means: the bills are affordable, but only if part of the March 5 check is kept for them. When the running total itself goes below zero, holding money back cannot fix it, because not enough money arrives in time.
Common mistakes:
- Paying a bill from whatever happens to be in the account on its due date, instead of reserving it from the check before.
- Judging the plan by the monthly total. $1,420 to spare hid a pay period that was $60 short.
- Counting the next paycheck towards a bill due the day before it arrives. A bill due on April 1 cannot be paid from an April 2 deposit.
- Spending an expected deposit before it lands. A payday is a plan until the money is in the account.
What this assumes. The paycheck is the same every time, bills are the amounts and dates you enter, and a bill due on payday is paid by that day's check (fund it from the earlier one if your bank's posting order is not reliable). It does not include everyday spending: groceries and fuel still have to come out of what is left. For a whole biweekly budget built around this, see how to budget biweekly pay.
How the pay schedules differ
Biweekly. Paydays drift through the month, so the same bill falls on different paychecks in different months. A bill due on the 3rd is comfortably covered in one month and lands the day before payday in the next. This is the schedule that most needs a per-period view, and it is also the one that produces three-paycheck months, where the third check can arrive with almost nothing assigned to it, or be the one that carries next month's rent, depending on where it falls against your due dates.
Semi-monthly. Twice a month on fixed dates, so the assignment is stable: the same bills land on the same paycheck every month. Once the split works, it keeps working. The calculator reads the 15th and the last day of the month as a pair, since that is the commonest twice-monthly schedule.
Weekly. Four or five short periods a month. Large bills dominate whichever week they fall in, so the practical approach is usually to set aside a portion each week rather than expecting one week to absorb rent. Budgeting for hourly and shift work pay covers this in more detail.
Monthly. One paycheck covers everything, so allocation is not the question. Sequencing within the month is, and a daily spending allowance is the more useful tool.
Reading the bill calendar
The results come in four views of the same calculation, so they can never disagree with each other:
- Calendar. One grid per month in your planning window. A ringed date marked "Pay" is a payday; a date marked "1 bill" or "2 bills" has bills due. Days are lightly shaded by pay period, alternating, so you can see where one paycheck's stretch ends and the next begins, and "Pay!" marks a paycheck that is overloaded. Under each month, every date is listed in words with the paycheck that covers it, so nothing depends on reading the shading.
- By paycheck. Each payday with the bills assigned to it, their total, and what is left or how much it is short. With savings goals added, each paycheck also shows its planned savings and whether they fit.
- Monthly summary. Each calendar month in the window: expected income, required bills, planned savings, what is projected to be left, and how many of that month's pay periods are short.
- Printable summary. One row per paycheck: the expected paycheck, the bills assigned, what is left, and a running total. Print it or save it as a PDF, or download the same rows as a CSV file for a spreadsheet. Both are built in your browser; nothing is uploaded to make them.
Bills that repeat
Each bill row has a repeat setting. Monthly repeats on the same day of every month, moving to the last day of a shorter month when the bill is due on the 29th, 30th or 31st and returning to its usual day the month after, so a bill due on the 31st is due January 31, February 28 (29 in a leap year), March 31. Every 2 weeks and weekly repeat every 14 or 7 days from the date you enter, which suits childcare, a car loan paid biweekly, or a weekly transfer. One time appears once. A repeating bill is never placed before the date you enter, and it repeats across the whole planning window, including into the next year, so December rent does not vanish because November's was the one you typed.
Starting money, and the running total
Under "Add money you already have" you can enter your spending account balance and anything already set aside for these bills, and say where that set-aside money is: held separately, or part of the balance you entered. The answer matters. $2,000 in checking that already includes $800 for rent is $2,000, not $2,800, so money inside the balance is never added a second time. If the set-aside is more than the balance it is supposed to be part of, it is not used until one of the two is corrected. Set-aside money is applied to your bills in due-date order, once, and each paycheck shows how much of its bills it paid. Both fields are optional. If you leave them blank the calculator does not assume you have any money: bills due before your first paycheck are flagged as needing cash you have not entered, and the running total starts from $0.
The running total is that starting money, plus each expected paycheck on its payday, minus the bills assigned up to then. It answers one question: if you kept every leftover and spent nothing else, would the bills in this window still be covered? When it goes below zero, moving a due date will not fix it, because the bills cost more than the money arriving in time. It is not spending money, and future paychecks are counted only from the day they land.
Planning savings and an emergency fund, paycheck by paycheck
Open "Add savings goals and an emergency fund" to see whether your savings plan fits around your bills. For the emergency fund and up to five other goals you can plan a set amount each paycheck (with an optional target, after which contributions stop) or enough to reach a target by a date, which uses the sinking fund calculator's own rule: only paychecks strictly before the date count, and the amounts add up to the target to the cent.
Savings come out of what is left after bills. Each paycheck's bills are covered first, net of any money already set aside for them. What remains is what savings can come from:
- Take-home paycheck: $1,800
- Bills assigned to it: $1,500
- Left after bills: $300
- Planned emergency savings: $400
- Shortfall: $100
That paycheck is shown as $100 short, never as money left over, and it says "up to $300 fits" as an alternative. Your planned amount is not changed, and no bill is skipped or moved to make the savings look affordable. A goal with a short paycheck in its plan is never reported as reached on time.
Savings you already hold stay separate. Your emergency savings and other goal balances are not added to your available cash and are never used to pay a bill. Future contributions are labelled planned or projected: a plan is not a deposit. The calendar marks paydays with planned savings "Save" ("Save!" when they do not fit), and a savings progress table shows each goal's projected balance after every paycheck in the window. If the target is past the window, the completion date assumes the same contribution continues, and says so.
Not sure how big your emergency fund should be? The emergency fund calculator works out a target from your essential expenses and compares 1, 3 and 6 months.
What the result is, and what it is not
The remaining figure on each paycheck is what is left after the bills you entered. It is not discretionary money. Groceries, fuel, medical costs, the subscriptions you forgot, and anything that is not a fixed bill still come out of it.
Read it as the ceiling that everyday spending has to fit inside for that period. A period showing $210 left after bills is not a $210 problem if your groceries run $300, and seeing that in advance is the whole value of laying it out.
This is a bill allocation. It is one input into a budget, not the budget.
How Pocket Runway does this continuously
Entering a schedule into a calculator answers the question for today. The answer changes every time a due date moves, a bill's amount changes, a paycheck is larger or smaller than usual, or the pay dates drift into a new month.
Pocket Runway holds the schedule and redoes the assignment every time anything moves. Each pay period shows the bills reserved against that specific paycheck, the transfers and savings committed from it, and what is genuinely left, turned into one daily spending figure. The forward forecast shows the same for pay periods that have not happened yet, so an overloaded period is visible weeks ahead rather than on the morning it arrives.
How safe to spend is calculated explains the arithmetic the app runs.
Get started with Pocket Runway
Paycheck allocation questions
Which paycheck should pay a bill due on payday?
The calculator assigns it to that day's paycheck, on the basis that the money is there on the day. If your deposit and your autopay hit on the same morning and you are not confident which lands first, fund it from the previous paycheck instead. Changing the due date in the form by one day shows you the alternative.
What if a bill is due before my next paycheck?
It is listed separately rather than assigned, because no paycheck in the window can cover it and the money has to come from your current balance. The daily spending allowance calculator is the better tool for that window, since it works from the balance you have now.
Should I split rent across two paychecks?
If one paycheck cannot carry it, yes, and the important part is keeping the set-aside portion somewhere separate from your spending money. A sinking fund works the same way for annual bills; the sinking fund calculator works out the per-paycheck amount.
Does this handle bills that are not monthly?
Yes, within limits. Each bill repeats monthly, every 2 weeks, weekly, or happens one time. A monthly bill is entered once and repeats on the same day of every month in the planning window, moving to the last day of a shorter month when it is due on the 29th, 30th or 31st; weekly and every-2-weeks bills repeat every 7 or 14 days from the date you enter. For a quarterly or annual bill, enter the next occurrence as a one-time bill: it lands on one specific paycheck, and a longer planning window will show you which. For spreading a large annual bill across many paychecks instead, use the sinking fund calculator.
Can I print or download my bill calendar?
Yes. "Print or save as PDF" prints the paycheck-by-paycheck summary and the month grids without the rest of the page, and "Download CSV" saves the same figures as a spreadsheet file: paydays, bill dates, which paycheck covers each bill, expected income, any starting money you entered, and what is left. Both are made in your browser from what is on screen, so the file matches the page and nothing is uploaded.
Does it use my bank balance?
Only if you type one in. The balance and set-aside fields are optional, and when they are blank the calculator assumes nothing is in your account rather than guessing. It cannot see any account and keeps nothing after you leave the page, unless you choose Save My Paycheck Plan, which holds your inputs in this browser for up to three days for you to review during account setup. Even then, a balance you typed here is only offered as a reminder: setup asks for what your account holds today.
How much can I save from each paycheck?
Whatever that paycheck has left after the bills it covers, less what your everyday spending needs. Add a savings goal or an emergency fund contribution and the calculator compares it with each paycheck's leftover after bills, shows any paycheck where it does not fit and by how much, and offers the amount that does fit as an alternative without changing yours.
Does Save My Paycheck Plan carry my savings goals?
Goals with a target, yes, and only the ones you confirm. If your account does not include savings goals until you subscribe, you can keep the goals you confirm in this browser for up to 7 days, and Pocket Runway asks you to confirm them again once your subscription is active; nothing is set up if you do not subscribe. During setup each goal is shown with its target and the amount it sets aside per pay period, unticked until you choose to set it up, and a balance you typed is recorded only if you confirm you still have it. A goal is set up to save that amount every pay period until it reaches the target; a target date is not stored, and a goal with no target is not carried over. Your pay schedule, take-home pay and bills carry over as before.
Is the leftover amount what I can spend?
No. It is what is left after the bills you entered, and everyday costs like groceries and fuel still come out of it. Treat it as the ceiling for that pay period rather than spending money.
This calculator is general educational information, not financial advice. It works only from the figures you enter and does not know about interest, fees, late charges, taxes or anything else outside them. All example figures are illustrative. It runs entirely in your browser: nothing you type is sent anywhere, stored, or added to a Pocket Runway account, and the printout and CSV are generated on your device.
Related reading: the emergency fund calculator, the irregular income stress test, which paycheck should cover rent and the rent split calculator, the paycheck calendar for every payday of the year, the free paycheck budget template to plan a whole year of bills in a spreadsheet, budgeting for biweekly and semi-monthly pay, budgeting when payday falls after rent, find your three-paycheck months, or the full guide library.