Savings Shortfall Calculator
Gap between current pace and target.
Calculate the savings shortfall between your current pace and a target amount at a set date. Enter contribution and years to see projected shortfall or surplus.
What this tool does
Enter current savings, monthly contribution, years remaining, and target amount. The tool shows projected shortfall or surplus.
Enter Values
Formula Used
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Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
Goal: 100,000 in 10 years. Current: 20,000 saving 400/month at 5% return. Projected: 95,053 — shortfall of roughly 4,947. Closing the gap means raising contributions slightly, or extending to 14 years, or accepting the shortfall. The tool shows the gap plainly so you can pick which lever to pull.
Quick example
With current savings of 20,000 and monthly contribution of 400 (plus years of 10 and expected return of 5%), the result is 4,946.90. 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 Current Savings, Monthly Contribution, Years, Expected Return, and Target Amount. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.
What's happening under the hood
Future value of current savings plus future value of contributions, minus target. 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.
Turning the result into a plan
A projection is just a starting point. The real work is setting the monthly amount aside automatically so the saving happens before you can spend it. Most people who hit savings goals set up a standing order on payday; most who miss them rely on willpower at month-end.
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.
Savings shortfall produces a gap figure based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Future value of current savings plus future value of contributions, minus target.
References
Frequently Asked Questions
How do I close a shortfall?
Realistic return rate?
Should I factor inflation?
What if I'm ahead of target?
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