10/17/2026
If you've got a low-rate mortgage and you're thinking about moving up, run this math before you fall in love with a house.
Say you owe $420,000 at 3.5%. That's about $1,886 a month in principal and interest.
Now say you're eyeing a $600,000 home here in Lake County. Put 20% down, borrow $480,000 at 6.5% (an example rate β ask your lender for today's), and you're at roughly $3,034 a month.
That's a gap of about $1,148 a month. If you buy first and carry both homes for two months while yours sells, that's nearly $6,900 in extra principal and interest alone β before taxes, insurance, utilities, or the actual cost of moving.
On a median-priced Lake County home ($435,000 in August), the gap is smaller β about $890 a month, or roughly $4,400 over two months β but it's still real money.
None of this means you shouldn't move. It means you should know your number first.
Has anybody here actually carried two mortgages during a move? How long did it last? π