Moneylight Blog

How to see if you can afford it before payday, using only YNAB

Sun, 02 Aug 2026 00:00:00 GMT

You can get most of the way there without buying anything.

TL;DR

Turn on the running balance, add your bills and paychecks as scheduled transactions, and YNAB puts a projected balance beside each upcoming row for free.
It shows the next occurrence of each scheduled transaction, not the next several, so the further out the date the less of your real spending is drawn on the page.
It's one account at a time, and only on the web app on a computer.

Turn on the running balance in your account register, put your recurring bills and paychecks in as scheduled transactions, and YNAB will show a projected balance beside each upcoming row.

It's a good trick and it's free. It also shows only the next occurrence of each bill and paycheck, not the ones after that.

Turn on the running balance

Open an account on the web app and click View, next to the search bar. Check Show Running Balance, and a Balance column appears on the right side of the register.

You'll do that once per account. The setting lives in your browser, so a new device means turning it on again.

YNAB sorts the register by date descending by default, newest at the top, and scheduled transactions sit above that in their own collapsible Scheduled section.

So the projection runs up the page, not down it. The furthest-out balance is at the top, and scrolling down walks you back toward today.

Schedule what you already know about

Add each recurring bill and paycheck as a scheduled transaction. YNAB asks for the date of the next occurrence and a frequency, then files it in a collapsible Scheduled section at the top of the register.

Scheduled rows show up gray, because they haven't cleared yet. They don't move any money: YNAB's own guide says a scheduled transaction "will not yet affect your plan."

Good to know

A scheduled transaction still asks to be funded. If a category doesn't hold enough to cover one due later this month, YNAB turns it yellow with a calendar icon, and Auto-Assign's Underfunded button will ask you for the money.

You can snooze a target to quiet it. You can't snooze a scheduled transaction, so an underfunded one keeps counting and stays yellow.

That's worth knowing before you go scheduling everything you can think of.

How far the running balance gets you

Genuinely far. You end up with a dated list of what's coming and a balance beside each row, which is most of the work.

Say it's the 1st, you're sitting at $2,500, and rent, the electric bill, and a grocery run all land before your paycheck. In register order, that reads bottom to top:

Date	Payee	Outflow	Inflow	Balance
Scheduled
Jun 10	Paycheck		$1,800	$2,830
Jun 7	Groceries	$150		$1,030
Jun 5	Electric	$120		$1,180
Jun 3	Rent	$1,200		$1,300
Posted
Jun 1	Opening balance			$2,500

The number that answers "can I afford it" isn't the $2,500 in your account today. It's the $1,030 you bottom out at on the 7th, and the register puts it in front of you without any arithmetic on your part.

For the next week or two, that's the question you actually asked. If your bills are mostly monthly and your paycheck is steady, this may be all you ever need.

Where the projection stops

It shows the next occurrence, not the next several

A scheduled transaction in YNAB carries a single upcoming date. The setup flow asks you for "the date of the next occurrence," and YNAB's own API exposes exactly one date_next field per scheduled transaction, with no list of future dates behind it.

When that occurrence posts, the date advances to the following one.

So the register shows you next Friday's paycheck. It doesn't show the one after that, or the three grocery runs in between, or the second time the gym bills you.

Limitation

The further out the date, the less of your real spending is drawn on the page. A balance six weeks out looks healthier than it is, because most of those six weeks hasn't been filled in.

That's a deliberate design, and it's consistent with how YNAB works. The method is built on the money you have right now, so the register surfaces the next thing you have to act on rather than a pile of things you can't do anything about yet.

It's one account at a time

You turn the running balance on inside a single account's register, and it tracks that account.

If your paycheck lands in checking and you keep a cushion in savings, there's no column anywhere that nets the two together. You're still the one holding both numbers in your head.

What I built instead

Moneylight keeps its own list of bills and paychecks, separate from YNAB's scheduled transactions. You import your bills from your YNAB categories, then set each one's amount, cadence, and next due date.

Paychecks you enter by hand, once.

From that list it projects every occurrence out to your horizon, not just the next one. It groups them into weeks, Sunday through Saturday, and each week ends on a projected balance.

Each week gets its own card, with the bills that actually fall in it.

It reads your YNAB data and never writes to it. It can't assign a dollar, move one, or edit anything in your Plan, so the budget you built stays exactly as you left it.

It also reads across every checking account you select, so the cushion in savings and the paycheck in checking land in the same number. The lowest week on the chart gets marked, and when it drops below the thresholds you set, it's labeled your Tight Week.

If you want the longer version of why a weekly view answers a different question than a monthly plan, that's why you'd add a cash flow forecast on top of YNAB.

Common questions

Can I see the running balance on my phone?

No. YNAB makes the running balance available on the web app on a computer, or on an iPad through Safari. The moment you'd most like to run the check, standing in a store, is the moment you don't have it.

Do I have to turn it on for every account?

Yes. You select Show Running Balance in each account register you want it in, and the preference is saved in that browser on that machine. Switch devices, clear cookies, or open an incognito window and you'll set it again.

Why did my running balance stop making sense?

Probably the sort order. YNAB ties each balance figure to the transaction preceding it in the default date sort, and deliberately doesn't recalculate the column when you re-sort, so sorting by payee or category to hunt something down leaves it meaningless until you select the Balance column again and reset it.

Does scheduling a transaction change my budget?

Not on its own. A scheduled transaction sits in the Scheduled section and doesn't move money until the date arrives, though YNAB will count an underfunded one when you use Auto-Assign's Underfunded button.

Want to see past the next occurrence?

Moneylight reads your YNAB data and projects every occurrence into weekly balances, so a tight week shows up before you get to it. The guide covers setup, and how to read a week once you have one.

See a live demo

Demo data, no account needed.

How credit cards work in YNAB (in plain English)

Tue, 21 Jul 2026 00:00:00 GMT

A credit card in YNAB is a way to pay, not extra money to spend.

TL;DR

You budget the same categories whether you pay with cash, debit, or credit. There's no separate credit card spending category.
When you spend on the card, YNAB moves the money you already set aside into a Credit Card Payment category, where it waits until the bill is due.
Paying the card is a transfer, not a new expense, because you budgeted for the purchases as you made them.
Spend more than a category holds and that's credit overspending: the debt lands on the card with no cash set aside, and doing it month after month is the credit card float.

When you buy something on the card, YNAB moves the cash you already set aside out of the spending category and into a Credit Card Payment category. It waits there until the bill comes due.

That one move is the whole system. Once you see it happen, credit cards in YNAB stop being confusing.

Use the same categories, whatever you paid with

You budget the same way whether you pay with cash, debit, or a credit card. YNAB is clear on this: "be sure to use the same categories for both cash and credit card spending."

So there's no separate "credit card" spending category. Groceries come out of Groceries, whether you tap a debit card or a credit card.

The difference is only in what happens to the money afterward.

What happens when you swipe the card

Say you have $70 sitting in your Groceries category, and you buy $70 of groceries on your credit card.

YNAB does two things at once. It drops Groceries by $70, and it raises your Credit Card Payment category by $70.

Category (Available)	Before	After
Groceries	$70.00	$0.00
Credit Card Payment	$0.00	$70.00

The money didn't disappear. In YNAB's words it "got a new job," and now sits in the Credit Card Payment category "twiddling its thumbs until you make your payment."

When you pay off every purchase this way, that payment category always holds exactly what you owe. YNAB shows the amount you have ready to pay in green.

Green Available: the cash to pay this card in full is already set aside.

Before you spend, check the category's Available column, what YNAB calls "your source of truth." If Groceries says $70 is available, a $70 grocery run is covered, card or not.

Why paying the card isn't a new expense

This is where a lot of people trip.

When your bill is due, you don't categorize the payment. You already budgeted for those purchases as you made them, so the money is sitting in the Credit Card Payment category waiting.

Paying the card is just a transfer: money moves from your checking account to your credit card account. No category gets touched, because you're not spending again, just handing over money you already reserved.

A payment is a transfer between accounts, so no spending category is involved.

What happens when you spend on debit instead

Debit is simpler, and comparing the two makes the credit card version obvious.

Swipe a debit card and the cash leaves your bank account immediately. YNAB drops the spending category, and that's the end of it. There's no payment category, because there's no bill coming later.

A credit card keeps that cash in your budget instead of spending it now. The Credit Card Payment category is just the holding pen until the statement is due.

When the category didn't have the money

The system only works if the cash was there first. Sometimes it isn't and you reach for the card anyway, which happens to most people at some point.

Buy $90 of groceries with only $70 in Groceries, and YNAB can only move the $70 that's there. Groceries drops to -$20 and turns yellow.

YNAB calls that credit overspending. The cash never moved up to your Credit Card Payment category, so your card balance climbs while the money set aside to pay it stays put.

Yellow, negative Available: the charge went on the card, but no cash moved to cover it.

That $20 gap is the part of the balance you can't cover yet.

Limitation

Credit card overspending doesn't roll into next month the way cash overspending does. If you leave it uncovered, it comes back as an Underfunded alert on the Credit Card Payment category in the current month.

You clear it by moving money into Groceries from another category. Once the category is whole again, the cash flows up to the payment category on its own.

Riding the credit card float

Do that month after month and you're on what YNAB calls the float, charging now and paying it back with next month's income.

Important

YNAB's test is one question. Can you pay the card in full right now and still meet this month's obligations with the cash you have on hand?

If you can't, part of that balance is debt rather than this month's spending waiting on a statement.

The fix is the same category view you already use. For a balance you'll carry a while, you set a target on the Credit Card Payment category and pay it down on a schedule.

YNAB's own way off the float is to ease off the card where you can, cover overspending as money comes in, and build toward paying this month's spending with money you already have. Nothing here is a dead end; the numbers just stop pretending.

The times you assign to the payment category yourself

Most of the time you never assign money to the Credit Card Payment category directly. YNAB fills it for you every time you spend from a funded category.

The exceptions are worth knowing, straight from YNAB's own list:

A balance from before you started using YNAB. Those purchases happened before YNAB was watching, so nothing moved automatically to cover them. If the card comes in at a balance of -$375, you assign $375 straight to the payment category to be set to pay it in full.
Paying down a balance you're carrying, when you want to throw extra at it.
Overspending that rolled over uncovered from a past month.
Balance transfers between two cards, which YNAB won't move for you.
An overpayment that pushes the card positive, where nothing moves until the balance goes negative again.

Outside those, you can leave the payment category alone and let YNAB do the moving.

Where a forecast fits on top

YNAB's payment category tells you the money to pay the card is set aside. It doesn't tell you which week the payment actually leaves your checking account.

That timing question is what a forecast answers. Moneylight sits on top of YNAB, read-only, and lays your plan across the calendar so you can see when each dollar leaves, credit card payments included.

For a card you carry and pay down over time, it shows that payment landing on the week it's due, alongside your paychecks and everything else. Your month can add up perfectly and still have a tight week hiding in it.

That's the longer version of the argument in why you'd add a cash flow forecast on top of YNAB.

Common questions

Do I need a separate category for credit card spending?

No. YNAB asks you to use the same categories for cash and credit card spending, so a tank of gas is Transportation either way. The Credit Card Payment category isn't a spending category: it's where the cash waits between the swipe and the statement.

Why doesn't my Credit Card Payment category match my statement?

The category shows the cash you've set aside, not the full statement balance. Say it holds $200 and the statement says $260: the $60 gap is spending that never had money reserved for it, whether that's credit overspending, interest, or debt that predates your budget.

What if my card is on autopay for the full balance?

The autopay still pulls the whole statement from checking on its date, whatever your categories say. If part of that spending was never funded, you'll feel it as a short week even though the month's totals look fine.

Can I pay a carried balance off faster?

Yes. You assign money to the Credit Card Payment category directly, on top of whatever YNAB moved there for you, and it goes out with the next payment. For a balance you'll be chipping at for a while, a target on that category turns it into a monthly number instead of a decision each time.

Know which week the card payment actually lands

YNAB tells you the money is set aside. Moneylight reads the same data, read-only, and lays it across the weeks so you can see when it leaves. The guide covers setup and how to read a week.

See a live demo

Demo data, no account needed.

Why add a cash flow forecast on top of YNAB?

Thu, 09 Jul 2026 00:00:00 GMT

So you can see which week runs tight even though it's still three weeks away.

TL;DR

YNAB settles what every dollar is for. A forecast shows you when each one leaves.
Moneylight rolls the same plan forward week by week, Sunday through Saturday, and each week ends on a projected balance.
It marks the lowest week ahead, and labels it your Tight Week when it falls under the thresholds you set.
Your budgeting doesn't change. YNAB access is read-only, so it never assigns or moves a dollar.

YNAB settles what every dollar is for. A weekly forecast takes that same plan and stretches it across the calendar, so you can see when each dollar actually leaves.

Your paychecks and bills run on different rhythms

If you're paid every two weeks and rent's due on the 1st, you know the feeling.

Two months out of the year have a third paycheck. In some months, the rent falls two days before payday instead of two days after. The month always comes out fine, and the weeks inside it are where you actually live.

A week is the unit Moneylight forecasts. Each one runs Sunday through Saturday in your own time zone and ends on a projected balance.

That balance is your starting funds, plus the paychecks that land in the week, minus the bills due, your everyday spending, and any savings transfers.

One week	Amount
Starting funds	$1,240
Paychecks	+$1,800
Bills due (rent, electric)	-$1,320
Necessities (groceries, gas)	-$180
Savings transfer	-$200
Ending balance	$1,340

Every week in your horizon gets the same treatment.

You carry a balance on a credit card

Your checking balance isn't fully yours if a credit card already has a claim on part of it.

Moneylight asks how you handle each card. A card you pay In full each month has its balance subtracted from every week's ending balance, so the number you're looking at is what's actually left to you.

A card you pay in full comes out of the week before the ending balance.

A card you're paying down over time you mark I make payments instead. Its balance stays out of the ending balance and shows as card debt, and each payment counts as cash leaving in the week it falls.

Charges YNAB has queued but hasn't posted yet are netted against the money already sitting in your categories, so something you've funded doesn't get counted against you twice.

You want warning before the tight week

Every forecast has a lowest point, and Moneylight marks it.

When that low week falls under the thresholds you set, the chart labels it your Tight Week. Warn Below turns it amber.

Danger Below turns it red, and any week that falls under it gets a "low" badge. When your lowest week is comfortably fine, the same marker reads Lowest Point.

The chart flags the tightest week ahead, before it's this week.

Four weeks is the default view. You can push it out to 104 if you want to see a year and change from here.

When something big is coming (a car repair, a vet bill, a trip you haven't booked yet), you can drop it onto a single week as an ad-hoc item. It ripples through every week after it.

Personally, I keep mine at 8 weeks.

Three weeks' warning is enough to move money on a Tuesday night calmly, rather than at 7am on the morning a bill clears.

You already keep a spreadsheet next to YNAB

I ran one alongside YNAB for nine years. Every bill cycle, I updated the budget, then the sheet.

If you've built your own forecast tab, you already agree with everything above. You proved the need by doing the work by hand.

How this fits the YNAB method

Does this change how I budget?

No.

YNAB asks you to give every dollar you have a job, today, with the money already in your accounts. That rule is the reason the method works.

Moneylight leaves it alone. It never assigns a dollar anywhere, and it can't: its YNAB access is read-only, so it can't write to, edit, or move anything in your Plan.

You keep budgeting exactly the way you do now. Moneylight reads the plan you've already made and shows you when each piece of it leaves the account.

What happens to my scheduled transactions?

They stay where they are, doing what they already do. Your register shows the next occurrence of each recurring bill and paycheck, and each one rolls onward as it posts.

That register will even project a running balance for you, one account at a time, if you turn it on. It's a good trick, and it's covered in how to see if you can afford it before payday, using only YNAB.

Moneylight keeps its own list instead. You import your bills straight from your YNAB categories, and from that list it projects every occurrence out to your horizon, several paychecks deep.

Limitation

The import seeds each bill's name and amount from your YNAB categories. You set the cadence and the next due date yourself, once per bill, and paychecks you enter by hand.

Twelve cadences are available either way, from daily to every other year.

Try this

Open YNAB and answer this without doing any arithmetic: what will your balance be the week of the 28th, after rent, before the next paycheck?

Most people work that out in their head, or in a spreadsheet. A forecast just keeps the answer in front of you, every week, built from the plan you already made.

See the week of the 28th before you get to it

Moneylight reads your YNAB data, read-only, and rolls the plan you already made out into weekly balances, so a tight week shows up while there's still time to move money. The guide walks through setup and how to read a week.

See a live demo

Demo data, no account needed.