Time in years to hit a specific deposit target from current savings and monthly contribution

How Savings Timelines Work

Reaching any savings goal depends on four variables: current balance, monthly contribution, rate of return, and target amount. The calculator iteratively solves for months until compound growth of current savings plus accumulating monthly contributions reaches the target. Small changes in any variable significantly change the timeline. Increasing monthly contribution by 20% typically cuts timeline by 15-20%. Higher savings account rates (moving from 1% to 4% APY) reduce time to target by 5-10% on typical timelines.

Realistic Savings Account Returns

Standard bank savings accounts: 0.1-0.5% APY — essentially zero real return after inflation. High-yield savings accounts: 4-5% APY in current rate environments. Money market funds: similar 4-5%. Short-term CDs (6-12 months): slightly above savings rates. Treasury bills: 4-5% with government backing. House deposit savings typically live in high-yield savings or money market funds — not stocks, which could drop just when you're ready to buy. The calculator accepts any rate you specify.

Worked Example for Typical Saver

Target 60,000. Current 10,000. Monthly 1,000. Return 4%. Months to target approximately 47 (3 years 11 months). Total contributed 57,000. Interest earned 3,000. Final balance 60,000. The saver reaches the 60,000 target in just under 4 years. Increasing monthly contribution to 1,500 cuts timeline to about 32 months. Lower-yield 1% account extends timeline to 50 months. The calculator lets you test all these scenarios.

What the Calculator Does Not Model

Target inflation over savings period — for house deposits specifically, property prices often rise during saving period. Tax on interest in taxable accounts. Withdrawal fees or account limits. Lump-sum windfalls (inheritance, bonus, tax refund) that could accelerate timeline. Variable monthly savings patterns. The calculator assumes fixed inputs; real savings journeys have variability that speeds up or slows down the timeline.

Common Savings Timeline Mistakes

Using nominal target without adjusting for inflation on long timelines. Not automating contributions — discretionary monthly saving often falls short of planned amount. Keeping savings in zero-yield accounts losing ground to inflation. Giving up when progress feels slow — compound growth accelerates meaningfully in last third of savings journey. The calculator quantifies what's needed; consistent execution determines actual achievement.