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Creating a Calendar That Shows All Utility Bills at a Glance

2026-06-11 · about 5 min read
ⓘ This article is for general information only and does not replace professional medical, legal, or financial advice. Please consult a qualified professional before making important decisions.

From electricity, gas, water, mobile service, maintenance fees, and insurance, each type of utility or fixed bill has a different billing source and payment date. If you cannot see at a glance where, when, and how much money will be withdrawn, it is easy to incur late fees or miss payments because of an insufficient balance. Bringing scattered information together into a single calendar almost eliminates this problem.

SectionKey summary
IntroductionBringing scattered information together into a single calendar almost eliminates this problem
First, gather all utility bills into one listShort key point
Transfer them to a calendarIt does not matter whether you use a paper calendar or your phone calendar
Steps for making the calendarOrganize the item name, payment date, average amount, and whether it varies in a table
What changes when you can see cash flowThe example total is 402,000 won per month
Write down seasonal changes in advanceElectricity rises in summer, and gas rises in winter
Utility bills feel less intimidating when viewed by dateDuring that week, you can avoid large purchases or move funds in advance

First, gather all utility bills into one list

Look at your statements and automatic payment history from the last 1 to 2 months, and write down every item that is withdrawn regularly. It helps to separate bills with the same amount every month, such as mobile service and insurance, from bills that change by season, such as electricity and gas.

ItemPayment dateAverage amountWhether it varies
Maintenance fee25th of every month180,000 wonVariable (heating season ↑)
Electricity bill18th of every month42,000 wonVariable (summer ↑)
Gas bill20th of every month35,000 wonVariable (winter ↑)
Mobile service bill12th of every month55,000 wonFixed
Insurance premium5th of every month90,000 wonFixed

Transfer them to a calendar

It does not matter whether you use a paper calendar or your phone calendar. The key is to write both the item name and the amount in the date box. If you write entries such as insurance 90,000 on the 5th and mobile service 55,000 on the 12th, you can immediately see which week of the month has the heaviest payments.

Steps for making the calendar

  1. Pull out all utility and fixed bills that repeat every month from your automatic payment and card statements for the last 2 months.
  2. Organize the item name, payment date, average amount, and whether it varies in a table.
  3. Enter the item name plus amount into each date box on the calendar.
  4. Add a reminder saying 'scheduled withdrawal for XX' in the box for the day before the payment date.
  5. Add up the amount withdrawn each week and write it next to the calendar (for example: first week 90,000, second week 55,000).
  6. If payday overlaps with a week when large withdrawals are concentrated, apply to spread out the payment dates for any items where this is possible.

What changes when you can see cash flow

The example total is 402,000 won per month. But if maintenance fees, electricity, and gas totaling 257,000 won are concentrated between the 18th and 25th, you can prepare in advance by avoiding other large expenses that week. Unlike when you only know the total, knowing when payments are concentrated makes it much easier to manage your bank account balance.

Write down seasonal changes in advance

Electricity rises in summer, and gas rises in winter. If you know the amount from the same month last year, write something like 'July electricity expected 80,000' next to the variable column. This helps you avoid being surprised by a suddenly larger bill and lets you adjust other spending for that month in advance.

Utility bills feel less intimidating when viewed by date

Utility bills feel burdensome not only because of the total amount, but because the withdrawal dates are scattered. If you write the item name and average amount in each calendar box, you can see which week the money is concentrated in. During that week, you can avoid large purchases or move funds in advance.

For items that change by season, such as electricity and gas, it is useful to write down the amount from the same month last year as well. Summer electricity bills and winter gas bills are less stressful when you estimate them in advance.

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Note: For items where the payment date can be changed, request dates right after payday. When fixed costs are withdrawn as soon as money comes in, you can clearly recognize the remaining balance as money you can actually spend.
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