Free Calculator

Tax Refund vs Withholding Calculator

A refund is a zero-interest loan to the IRS. Enter your typical refund, an expected investment return, and your card APR/balance to see what those dollars could have done if kept in each paycheck.

Typical annual refund ($)

Expected investment return (%)

Credit card APR (%)

Current card balance ($)

Extra monthly paycheck

$300

Invested → 12-month value

$3718

Gain vs refund: $118

Card interest avoided (12 mo)

$292

Ending balance: $988

Estimate only — not an offer or approval decision

Assumptions used

Refund is spread evenly across 12 months of larger paychecks.
Investment returns compound monthly at the entered annual rate.
Card APR is applied monthly at APR/12 with the extra payment applied after interest.
Baseline for interest-avoided assumes the balance would otherwise stay flat.

Not included in this estimate

Tax owed vs refund uncertainty — assumes a stable refund pattern
Withholding tables, deductions, credits, and state tax rules
Underpayment penalties if withholding is cut too far
Behavioral factors: refunds sometimes act as forced savings

Real rates, payments, and eligibility depend on the lender or issuer, your credit profile, and current market conditions. Verify current terms directly with the provider before making a financial decision.