Appraisal Waiver Savings Calculator

Fannie Mae and Freddie Mac offer appraisal waivers (PIW) on eligible purchases and refis based on their AVM confidence. Waiver saves $400-$700 and 7-10 days but forfeits an independent check on value. This calculator sizes the trade-off.

Appraisal cost (saved)

Days saved

Purchase price

Confidence price is fair market %

Potential overpay if wrong %

Net expected benefit of waiver

-$2,700

Direct savings (fee + time)

$900

Expected overpay risk

$3,600

How the math works

$550 fee + 7 days × $50 = $900 savings. On $450K at 80% confidence × 4% overpay risk = $3,600 expected risk. Net: −$2,700. Waiver NOT worth it on this high-risk case.

If you're confident in price (strong comps, multiple offers), waiver saves money. If there's any doubt (unique home, new market), take the appraisal.

How to Use

Enter appraisal cost and days saved.
Enter confidence that purchase price is fair market.
See net benefit or risk of accepting waiver.

Frequently Asked Questions

When does a waiver work in your favor?

Hot markets with strong comps, refinance on well-documented properties, new construction with recent nearby sales. Fannie's AVM is accurate 85%+ of the time on urban/suburban homes.

When should I insist on full appraisal?

Rural/unique property, custom home, recent major renovation not in public record, historic home. Also: if you suspect you're overpaying — appraisal gives grounds to walk or renegotiate.