What Is a Christmas Club?
A Christmas Club is a short-term savings plan, usually offered by banks and credit unions, that helps you set money aside throughout the year so you have a lump sum ready for holiday spending. You make small, regular deposits—typically weekly—and the account pays out near the end of the year. This calculator shows exactly how much you will have at payout based on your deposit amount, the number of weeks you save, and any interest the account earns.
How to Use the Calculator
Enter your weekly deposit (the amount you plan to set aside each week), the number of weeks you will save (often 50 or 52 to cover a full year), and an optional annual interest rate if your account pays interest. The calculator returns your total payout, the total you personally deposited (principal), and any interest earned.
The Formula Explained
With no interest, the math is simple: \( \text{Total} = \text{Weekly Deposit} \times \text{Weeks} \). When the account pays interest, each deposit earns interest only for the weeks remaining until payout. The calculator applies the weekly rate (annual rate ÷ 52) and compounds each deposit individually, then sums them. This mirrors how a real interest-bearing savings account treats deposits made at different times.
$$\begin{gathered} \text{Total} = \sum_{n=1}^{N} D \,(1+r)^{n} \\[1.5em] \text{where}\quad \left\{ \begin{aligned} D &= \text{Weekly Deposit} \\ N &= \text{Number of Weeks} \\ r &= \dfrac{\text{Annual Rate (\%)}}{100 \times 52} \end{aligned} \right. \end{gathered}$$
Worked Example
Suppose you deposit $25 per week for 52 weeks with no interest. Your total is $$25 \times 52 = 1{,}300$$ $1,300, all of it principal. If the same plan earned 2% annual interest, each deposit would compound at roughly 0.0385% per week, adding a small amount of interest on top of the $1,300.
FAQ
Do Christmas Clubs pay interest? Some do and some don't—rates are usually modest. Leave the rate at 0 if your account pays none.
Can I withdraw early? Many Christmas Clubs restrict early withdrawals or charge a fee, since the goal is to keep you saving until the holidays.
How many weeks should I use? Most clubs run about 50–52 weeks, but you can model any horizon up to a full year.
