Everyday & Units100% Free Tool

Free Loan Payoff vs Invest Calculator Online

Decide whether to use extra cash to prepay a loan or invest it — compare after-tax interest saved vs after-tax investment returns for optimal financial decision. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.

100% Client-Side0ms Latency
Tip Total$21.60
Total Bill + Tip$141.60
Each Person Pays$47.20

How It Works

1

Enter Loan Details

Input outstanding loan amount and effective interest rate (post-tax).

2

Enter Investment Details

Input expected investment return rate and tax treatment.

3

Enter Extra Cash

Enter the lump sum amount available for prepayment or investment.

4

View Recommendation

See which option generates more net wealth over 5/10/15 year horizons.

Frequently Asked Questions

If home loan rate (post-tax) > expected investment return: prepay. If investment return > loan rate: invest. Home loans at 8.5% vs equity SIP CAGR of 12%: mathematically invest, but factor in risk tolerance and peace-of-mind from being debt-free.

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