Compare the three ways to buy

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

Cash to Close
Assumption

Assumption only

$1,259/mo
Lowest payment
Down payment
$520,600
Funds due
$534,575
Interest + MI left
$75,944
First ends
Apr 2047
Assumption

Assumption + second

$4,526/mo
+$3,267/mo
Down payment
$64,600
Funds due
$82,342
Interest + MI left
$796,006
First ends
Apr 2047
New loan

New conventional

$4,527/mo
+$3,268/mo
Down payment
$64,600
Funds due
$78,818
Interest + MI left
$879,457
First ends
Jan 2057

Monthly payment

The initial total housing payment for each option.

Assumption onlyAssumption + secondNew conventional
First mortgage$123,900$123,900$579,900
Second mortgage—$456,000—
First P&I$753.96$753.96$4,015.11
Second P&I—$3,266.84—
Mortgage insurance$109.60$109.60$115.98
Taxes, insurance & HOA$395.58$395.58$395.58
Total housing payment$1,259.14$4,525.98$4,526.67

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$64,600
Closing costs & prepaids$17,742
Usable credit−$0
Total buyer cash needed$82,342
Earnest money paid−$0
Remaining funds due$82,342
Assumption fee$1,800.00
Credit report$250.00
UMe assumption specialist (1%)$6,445.00
Title & settlement$1,825.00
Recording fee$100.00
Second-loan charges$1,250.00
Home insurance (12 months up front)$2,000.00
Insurance escrow (3 months)$500.00
Property tax escrow (3 months)$686.75
Prepaid interest, first (26 days)$368.03
Prepaid interest, second (26 days)$2,517.37

Prepaids include a year of home insurance up front, three months of taxes and insurance in escrow, and 26 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 closing20 yr 4 moOf the original 30-year loan at 4.170%
Interest already paid$56,628Through Dec 2026
Assumption only · ends Apr 2047$75,944
Assumption + second · ends Apr 2047, second Jan 2057$796,006
New conventional · ends Jan 2057$879,457