A Christmas budget is not really about gifts. It is about how many paydays you have left before the 25th. Here is how to work out what to put aside each pay, including if you are starting late.
Written by Alex BPublished 10 November 2026
Money Detective is built around practical household money tools for Australians.
Most Christmas budgets fail for a boring reason: the total gets chosen, but nobody divides it by the paydays that are left. A $800 Christmas looks fine as a number. It looks very different as $266.67 out of each of your last three fortnightly pays.
This guide works backwards from the date. It is general information and the figures are examples, not typical Australian spending.
Count how many paydays you will have between now and the day you want the money ready. Many people pick the week before Christmas rather than the 25th, so the presents are not all bought at once. If you are paid weekly, count the weeks. If you are paid fortnightly, count every second week from your next payday. If you are paid monthly, you may only have one or two.
Public holidays can shift paydays around Christmas and New Year. Check your own pay dates, and for Centrelink payments check your online account, as the dates can change around holiday closures.
Gifts are usually the smaller part of the list. Write down everything Christmas costs your household, then add a line for the surprise you always forget:
Here is how much the starting date matters. The same total costs a lot more per pay when you start late.
| Christmas total | 13 fortnightly pays | 6 fortnightly pays | 3 fortnightly pays |
|---|---|---|---|
| $600 | $46.15 | $100.00 | $200.00 |
| $800 | $61.54 | $133.33 | $266.67 |
| $1,000 | $76.92 | $166.67 | $333.33 |
Examples only. Amounts are rounded to the nearest cent. If you are paid weekly, divide by the number of weeks instead. For example, $800 over 20 weekly pays is $40 a week.
Thirteen fortnightly pays is about six months. Three is about six weeks. Nothing about the amount of Christmas changed; only the time to pay for it did.
If the per-pay number looks impossible, you have three honest options, and mixing them is fine:
What I would avoid is covering the gap with buy now pay later or a credit card without a plan to pay it off. The repayments land in the pays after Christmas, when the January costs also arrive. If money is tight, free help is available through the National Debt Helpline on 1800 007 007 (Monday to Friday), or see Moneysmart's page on financial hardship.
Setting aside money only works if it stays set aside. A separate savings account is one option, and a pot tracked in a spreadsheet is another. Our sinking funds guide explains how to keep each goal's money from being counted twice. It also covers how a pot for Christmas differs from an emergency fund, which is for urgent costs you did not plan for.
If every pay is spoken for, the calculator above can feel like it is asking for money you do not have. These are ways to make the number smaller without cancelling Christmas.
The gift list is rarely the problem. These are the lines that surprise people:
Add a "forgotten costs" line of 10% to 15% of the total. That figure is a planning habit, not an official figure, so choose a percentage that suits you. It is easier to under-spend an allowance than to find extra money in December.
The calculator counts your actual paydays between now and your target date, so it works for any pay cycle. As a guide, a $900 Christmas needs about $69.23 a fortnight over 13 fortnightly pays (about six months), about $34.62 a week over 26 weekly pays, or $150 a month over six monthly pays. Starting in November with only a few pays left, the same $900 needs $300 a fortnight over three pays, or $450 a month over two. That is why the date matters more than the total.
Money you set aside is most likely to be used for Christmas if it is out of sight. A separate savings account, a labelled row in a spreadsheet or a sinking fund are all options. Our sinking funds guide explains how to keep several goals separate so the same dollar is not counted twice. If you use a buy now pay later service for gifts, plan the repayments first: see buy now pay later in your budget.
Once the season is over, take ten minutes to write down what you actually spent against what you planned. You will need those numbers next year, and they take the guesswork out of the next plan. If you came in under, decide what happens to the difference before it disappears: start next year's pot, top up an emergency fund or cover a January bill. If you came in over, work out which line did it, and adjust that line, not the whole plan.
There is no right figure. Household size, travel and hosting make the cost very different between families. Add up your own list, then compare it with what you can set aside each pay. A figure that fits your pay is better than a typical one.
The earlier you start, the smaller each pay's amount. Six months out is comfortable for most budgets, three months is workable, and six weeks is possible with a smaller total.
That is personal. Money you can see is more likely to be spent on other things, which is why a separate account or pot helps. A card is fine if you have the money set aside and pay it off in full. If you do not, interest or fees can turn a small shortfall into something bigger.
Payday Buffer is an Excel workbook that has an upcoming costs section. You add Christmas once, with its cost and the date it is due, and it works out what to put aside from this pay, taking into account anything you have already saved. It is one of several irregular costs it handles, like rego and insurance. Prefer to start free? The free fortnightly budget lets you plan each pay by category.
This article provides general information only. It does not take into account your personal objectives, financial situation or needs, and it is not financial advice. Examples use invented figures. Money Detective's tools provide estimates and planning information. Consider your own circumstances, and seek independent advice if you need it, before making financial decisions.