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
$730,663
Funds due
$747,712
Interest + MI left
$50,976
First ends
Oct 2042
Assumption

Assumption + second

$6,141/mo
+$4,621/mo
Down payment
$85,663
Funds due
$107,112
Interest + MI left
$1,069,485
First ends
Oct 2042
New loan

New conventional

$5,972/mo
+$4,453/mo
Down payment
$85,663
Funds due
$103,314
Interest + MI left
$1,144,020
First ends
Jan 2057

Monthly payment

The initial total housing payment for each option.

Assumption onlyAssumption + secondNew conventional
First mortgage$119,336$119,336$764,336
Second mortgage—$645,000—
First P&I$821.96$821.96$5,250.46
Second P&I—$4,620.86—
Mortgage insurance$128.86$128.86$152.87
Taxes, insurance & HOA$569.08$569.08$569.08
Total housing payment$1,519.89$6,140.75$5,972.41

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$85,663
Closing costs & prepaids$21,449
Usable credit−$0
Total buyer cash needed$107,112
Earnest money paid−$0
Remaining funds due$107,112
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 (23 days)$266.95
Prepaid interest, second (23 days)$3,149.90

Prepaids include a year of home insurance up front, three months of taxes and insurance in escrow, and 23 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 10 moOf the original 30-year loan at 3.550%
Interest already paid$77,156Through Dec 2026
Assumption only · ends Oct 2042$50,976
Assumption + second · ends Oct 2042, second Jan 2057$1,069,485
New conventional · ends Jan 2057$1,144,020