Private Mortgage Insurance (PMI) is required when you put less than 20% down. It protects the lender (not you) — but understanding it can save you thousands.
$420,000 home, 5% down ($21K), $399,000 loan at 6.5%:
Payment Schedule
Years Until 80% LTV
Total PMI Paid
PMI Saved by $200/mo Extra
Minimum payments only
9.5 years
~$19,000
—
+$200/month extra
6.5 years
~$13,000
$6,000
+$500/month extra
4.5 years
~$9,000
$10,000
FHA Mortgage Insurance: Different Rules
FHA loans have different (and generally worse) mortgage insurance rules:
Feature
Conventional PMI
FHA MIP
Upfront premium
None
1.75% of loan amount
Annual premium
0.5-1.5%
0.55% (with 3.5% down)
Removable?
Yes (at 80-78% LTV)
Only if 10%+ down and after 11 years
Down payment less than 10%
PMI removable at 80% LTV
MIP for life of loan
Down payment 10%+
PMI removable at 80% LTV
MIP removable after 11 years
Refinance to remove?
Can refinance to lower PMI
Must refinance to conventional to remove
FHA MIP Cost Example
$420,000 home, 3.5% down ($14,700), FHA loan of $405,300:
Cost
Amount
Upfront MIP (1.75%)
$7,093 (rolled into loan)
Annual MIP (0.55%)
$2,268/year ($189/month)
Total MIP over 30 years (if kept)
~$75,000+
Strategy: Refinance to conventional when 20% equity
Saves $45,000+
Should You Put 20% Down to Avoid PMI?
Scenario
Put 20% Down
Put 5% Down + PMI
Winner
Home price: $420K
$84,000 down
$21,000 down
Depends on opportunity cost
Monthly payment (P&I only)
$2,125
$2,540
20% down saves $415/mo
PMI cost
$0
+$100-$220/mo
—
Total monthly
$2,125
$2,640-$2,760
20% down saves $515-$635/mo
Cash remaining to invest
$0 extra
$63,000 invested
At 8%: $63K → $136K over 10 yrs
Break-even
—
—
~7-10 years
Key insight: If you can earn 8%+ investing the $63,000 difference, 5% down + PMI may be financially better — especially since PMI disappears in ~6-10 years. But the lower monthly payment of 20% down provides more security and cash flow.
WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.
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