Compare the three ways to buy

The payment, the cash to close, and what is left to pay

Cash to Close
Assumption

Assumption only

$1,520/mo
Lowest payment
Down payment
$730,195
Funds due
$746,989
Interest + MI left
$51,411
First ends
Oct 2042
Assumption

Assumption + second

$6,141/mo
+$4,621/mo
Down payment
$85,195
Funds due
$103,376
Interest + MI left
$1,069,920
First ends
Oct 2042
New loan

New conventional

$6,017/mo
+$4,497/mo
Down payment
$85,195
Funds due
$99,480
Interest + MI left
$1,159,877
First ends
Dec 2056

Monthly payment

The initial total housing payment for each option.

Assumption onlyAssumption + secondNew conventional
First mortgage$119,804$119,804$764,804
Second mortgage—$645,000—
First P&I$821.96$821.96$5,295.35
Second P&I—$4,620.86—
Mortgage insurance$128.86$128.86$152.96
Taxes, insurance & HOA$569.08$569.08$569.08
Total housing payment$1,519.89$6,140.75$6,017.39

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$85,195
Closing costs & prepaids$18,181
Usable credit−$0
Total buyer cash needed$103,376
Earnest money paid−$0
Remaining funds due$103,376
Assumption fee$1,800.00
Credit report$250.00
UMe assumption specialist (1%)$8,499.99
Title & settlement$1,825.00
Recording fee$100.00
Second-loan charges$1,250.00
Home insurance (12 months up front)$2,600.00
Insurance escrow (3 months)$650.00
Property tax escrow (3 months)$1,057.25
Prepaid interest, first (1 days)$11.65
Prepaid interest, second (1 days)$136.95

Prepaids include a year of home insurance up front, three months of taxes and insurance in escrow, and 1 days of interest to the end of the closing month.

What is left to pay

The seller already paid down the early, interest-heavy years.

Remaining first mortgage at closing15 yr 11 moOf the original 30-year loan at 3.550%
Interest already paid$76,801Through Nov 2026
Assumption only · ends Oct 2042$51,411
Assumption + second · ends Oct 2042, second Dec 2056$1,069,920
New conventional · ends Dec 2056$1,159,877