Savings Goal Calculator
Whether you're saving for a house down payment, an emergency fund, or a dream vacation, this calculator tells you exactly how much to set aside each month. Enter your target amount, current savings balance, time horizon in months, and expected annual yield — and get your required monthly contribution instantly.
When to use this calculator
- Planning a house down payment savings schedule
- Building a 3–6 month emergency fund
- Saving for a car, vacation, or large purchase
- Setting up a college tuition savings plan
- Tracking progress toward an investment account milestone
- Comparing how APY changes affect your required monthly deposit
How it works
2 min readWhat is a savings goal?
A savings goal is a specific financial target you aim to reach by setting aside money regularly over a defined period. It combines your initial balance, monthly contributions, and investment returns to calculate the total amount accumulated. For example, saving $20,000 in 24 months requires approximately $745 monthly at 4.5% APY, accounting for earned interest.
How It Works
This calculator uses the future value of an annuity formula, solved for the periodic payment (PMT). It accounts for both the growth of your existing balance and the compounding of each new monthly deposit.
Formula
r = APY / 12 / 100 // monthly interest rate
n = months // number of periods
// Future value of current balance after n months:
FV_existing = PV × (1 + r)^n
// Remaining gap to fill with monthly deposits:
Gap = FV − FV_existing
// Monthly payment needed (annuity PMT formula):
If r > 0:
PMT = Gap × r / ((1 + r)^n − 1)
If r = 0:
PMT = Gap / nWhen the APY is 0%, the formula simplifies to dividing the gap equally across all months.
Worked Example
| Input | Value |
|---|---|
| Savings Goal (FV) | $20,000 |
| Current Balance (PV) | $2,000 |
| Time Horizon | 24 months |
| APY | 4.5% |
Step 1 — Monthly rate: 4.5 / 12 / 100 = 0.00375
Step 2 — Growth of existing balance: $2,000 × (1.00375)^24 = $2,184.89
Step 3 — Gap: $20,000 − $2,184.89 = $17,815.11
Step 4 — PMT: $17,815.11 × 0.00375 / ((1.00375)^24 − 1) ≈ $744.99/month
Step 5 — Total contributed: $744.99 × 24 + $2,000 = $19,879.76
Step 6 — Interest earned: $20,000 − $19,879.76 = $120.24 (note: slight rounding)
Outputs Explained
Limitations & When NOT to Apply
Frequently asked questions
What APY should I use for a high-yield savings account in 2026?
As of early 2026, competitive high-yield savings accounts (HYSAs) offer between 4.00% and 5.00% APY. Check current rates at your bank or aggregator sites. The national average savings rate remains much lower (~0.45%), so using a HYSA matters significantly.
What if my current balance is $0?
Enter 0 in the Current Balance field. The calculator will compute a PMT based entirely on building the goal from scratch through monthly deposits plus compounding interest.
What does APY mean versus APR?
APY (Annual Percentage Yield) reflects the actual yearly return including compounding. APR (Annual Percentage Rate) does not include compounding effects. Always use APY when available — savings accounts typically advertise APY, so you can enter that figure directly.
Can I use this for a 401(k) or IRA savings goal?
You can use the same math, but note that tax-advantaged accounts have contribution limits ($7,000/year for IRA in 2026; $23,500/year for 401(k)) and returns vary. This calculator works best for cash savings goals with a predictable yield.
What happens if my current balance already exceeds the goal?
If the future value of your current balance already covers your goal, the required monthly contribution will be $0 or negative (meaning no additional deposits are needed). The calculator will flag this scenario.
Does this assume I deposit at the beginning or end of each month?
The standard PMT formula used here assumes end-of-month deposits (ordinary annuity). This is the most common assumption. Beginning-of-month deposits would reduce the required amount very slightly.
How does a longer time horizon affect my monthly payment?
A longer horizon lowers your monthly payment but also gives interest more time to compound, so the reduction is not strictly linear. Doubling your timeline from 12 to 24 months reduces payments by more than half when a meaningful APY is applied.
Is interest on savings accounts taxable?
In the United States, interest earned in regular savings or HYSA accounts is taxable as ordinary income in the year it is credited, and must be reported on Form 1099-INT. This calculator does not model tax drag — your after-tax effective rate will be lower.
Can I use this calculator for a CD (certificate of deposit)?
Yes, if the CD compounds monthly and you reinvest any interest (or it compounds internally). Enter the CD's APY and term in months. Note that CDs typically do not allow monthly additions — if that is the case, only the lump-sum initial deposit applies.