Short-Term Savings Calculator

Short-term savings (under 2 years) have different optimisation than long-term. Rate matters less because there's little time to compound. Liquidity matters more — the money needs to be available on the goal date. And the target is usually specific (a purchase, a payment, an event) rather than general wealth building.

For short-term goals, cash savings typically beat investment. Equity markets can fall 20-40% in any given short period — if your goal is in 12 months and the market drops, you're short. Fixed interest on savings produces predictable growth. The tradeoff is lower return but dramatically lower variance.

Typical short-term goals: wedding deposit (12-18 months), car purchase (6-12 months), holiday fund (3-12 months), tax bill prep (6-12 months), home deposit top-up (12-24 months). Each benefits from regular monthly contribution to a dedicated account, separated from general spending.

How to use it

Input starting balance, monthly contribution, current savings rate (interest), and months to goal (up to 24). The tool shows final balance, total contributed, and interest earned.

What the result means

Final balance tells you what you'll have at the goal date if the plan is executed. Interest earned is usually modest at short horizons — the main driver is contributions, not compounding. If the final balance is short of your goal, you need more monthly contribution, more time, or lower goal.

Short-term planning tool, not financial advice.

Quick example

With starting balance of 1,000 and monthly contribution of 500 (plus annual interest rate of 4% and months to goal of 18), the result is 10,321.32. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.

Which inputs matter most

You enter Starting Balance, Monthly Contribution, Annual Interest Rate, and Months to Goal. Not every input has equal weight. Adjusting one input at a time toward extreme values shows which ones move the result most.

What's happening under the hood

Monthly compounding identical to long-term savings math but focused on short horizons where interest impact is minor vs contribution-driven growth. The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.

How to use this beyond the first run

Re-run the calculation once a year. Life changes — pay rises, new expenses, interest-rate shifts — and the figure that looked right 12 months ago often isn't today. Annual recalibration keeps the plan honest.

What this doesn't capture

The calculation assumes a steady savings rate and a stable interest rate. Real saving journeys include emergencies, windfalls, and rate changes — especially in easy-access products. The figure is a direction of travel, not a guarantee.