Compare the three ways to buy

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

Cash to Close
Assumption

Assumption only

$1,524/mo
Lowest payment
Down payment
$729,948
Funds due
$746,754
Interest + MI left
$51,956
First ends
Oct 2042
Assumption

Assumption + second

$6,138/mo
+$4,614/mo
Down payment
$85,948
Funds due
$104,278
Interest + MI left
$1,068,886
First ends
Oct 2042
New loan

New conventional

$6,012/mo
+$4,488/mo
Down payment
$85,948
Funds due
$100,381
Interest + MI left
$1,158,582
First ends
Dec 2056

Monthly payment

The initial total housing payment for each option.

Assumption onlyAssumption + secondNew conventional
First mortgage$120,051$120,051$764,051
Second mortgage—$644,000—
First P&I$826.04$826.04$5,290.13
Second P&I—$4,613.69—
Mortgage insurance$128.86$128.86$152.81
Taxes, insurance & HOA$569.08$569.08$569.08
Total housing payment$1,523.98$6,137.67$6,012.03

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$85,948
Closing costs & prepaids$18,329
Usable credit−$0
Total buyer cash needed$104,278
Earnest money paid−$0
Remaining funds due$104,278
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 (2 days)$23.62
Prepaid interest, second (2 days)$273.48

Prepaids include a year of home insurance up front, three months of taxes and insurance in escrow, and 2 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 3.590%
Interest already paid$77,738Through Nov 2026
Assumption only · ends Oct 2042$51,956
Assumption + second · ends Oct 2042, second Dec 2056$1,068,886
New conventional · ends Dec 2056$1,158,582