Learning centre · Every week · 6 min · screens from October 2026

Credit cards, without counting spending twice

A credit card is where most spending happens, and where most budgets fall apart. The rule that keeps a card under control is simple: a purchase is budgeted once, at the store, from the envelope it belongs to. Paying the card off afterwards is a transfer between your own accounts, not new spending.

What you'll do

Step 1

Each card gets its own payment envelope

Add a credit card as an account and it creates an envelope for itself in a category called Credit Card Payments: Northgate Visa payment. That envelope holds only one thing: money set aside to pay the card. Purchases are not filed there. Purchases are filed into Groceries, Gas, Dining out, and the other envelopes they belong to.

The Credit Card Payments category: Northgate Visa payment holding $2,394.15 against $3,710.05 owed, the Mastercard's holding $498.09
Credit Card Payments. Each card's envelope holds the money its purchases moved into it, and the red card balance line under it shows what the card owes today.

Step 2

Buy groceries on the card, and the money moves to the payment envelope

Maya buys $140 of groceries on the Visa. The row is filed to Groceries, so Groceries goes down by $140 and, because the card was used, $140 moves from Groceries to the Visa's payment envelope. Groceries paid for the food. The payment envelope now holds the cash to pay the bank for it. Nothing was counted twice, and nothing will be counted again when the card is paid.

This works exactly when Groceries had the money. If Groceries was already empty, the purchase is overspending (Groceries turns red), and the payment envelope is short by the same amount. When you cover the overspending, the money goes where the bill is: Groceries goes back to zero, and the covered amount moves into the Visa's payment envelope. That way the card shows you the truth on the day you spend, not weeks later on the statement. On the budget, money set aside for card purchases shows as the payment envelope's activity, not as something you assigned.

The Northgate Visa payment envelope opened in a panel: left over from last month, assigned this month, activity this month, and available
The payment envelope, opened. This month's card purchases show as its activity: $2,132.34 set aside to pay the bill.

file this week. Everything on the Visa goes to its envelope; I'll pay the card on the 28th.

Step 3

Pay the card from chequing

On the 28th, chequing pays the Visa what its envelope holds: $2,394.15, if nothing else is bought before then. That is a transfer: one transaction leaves chequing, one arrives on the card, and the payment envelope goes down by the same amount. Ready to assign does not change, and no envelope other than the payment envelope changes. What the card still owes after that, $1,315.90, is debt from before the Reyes household started using Mintro. It stays owed until money is assigned to the payment envelope for it. They assign $300 a month, and the guide on getting out of debt explains that plan.

Accounts: chequing and savings positive, the Visa negative by what is owed, the Mastercard at zero, and the cashflow chart for all cash beneath
Accounts. The Visa shows −$3,710.05, and the budget already holds $2,394.15 toward it: this month's purchases plus what carried in from last month.

pay the Visa in full from chequing today

Step 4

See a card against its limit

Cashflow draws a card differently from a bank account. For chequing, the chart shows the money in the account going up and down. For a card, it shows the amount owed, which goes up with purchases and down with payments, with a marker at the card's limit. The Reyes Visa has a $12,000 limit, and the chart shows how close to it the card gets: with no payment scheduled, what they owe on the Visa climbs from $3,710.05 to $8,288.87 by January 28, still under the limit. Schedule the payment, and the drop appears on the 28th.

Cashflow for the Visa: what is owed rising with purchases toward the limit line, from $3,710.05 today to $8,288.87 on Jan 28
Cashflow for the Visa. $3,710.05 is owed of a $12,000 limit; with no payment scheduled, it climbs to $8,288.87 by Jan 28.

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