Keller Williams North Sound and Prime Listings Group logo CURT SIMMONS Prime Listings Group

Buying / 2026-10-18 / 6 min read

How Much House Can I Afford in Snohomish County in 2026?

By Curt Simmons, Broker · WA License 51380 · Keller Williams North Sound

The first question every buyer asks is also the one most likely to be answered wrong by an online calculator: how much house can I actually afford? In Snohomish County at 2026 rates, the answer depends less on the price tag than on the monthly picture: payment, taxes, insurance, and what you are walking away from.

The 28% rule, updated

The classic guideline says housing costs should stay around 28% of gross income, and it is still a reasonable starting point for a first-time buyer. For a move-up buyer it is often too conservative, because equity from the current home changes the down payment, and you may be trading one payment for the next rather than adding one. The number that matters is the change in your monthly housing cost, not the new payment in isolation.

Run it on the full monthly cost

Lenders approve you on principal and interest, taxes, insurance, and often HOA dues. In Snohomish County those added costs are significant, so I price the whole picture with buyers: purchase price, down payment, rate, taxes, insurance, HOA, and a realistic maintenance allowance. A home that fits the price tag can fail the budget, and one that stretches the price tag can still fit the budget once the details are on paper.

Where equity changes everything

This is the move-up advantage I keep coming back to. If you are selling a home with $350,000 in equity and buying at $850,000, you may be putting 30% to 40% down, with no mortgage insurance and a financed amount low enough that today's rate does not hurt as much. A first-time buyer in the same market is putting 5% down and carrying private mortgage insurance. The same house is a completely different affordability story for each.

A quick way to sanity-check your number

  • Take your monthly gross income and multiply by 0.28 for a conservative ceiling on total housing cost.
  • Subtract projected monthly taxes, insurance, and HOA dues. What remains is room for principal and interest.
  • Work backwards from there to the loan amount at today's rate, then add your down payment to get a purchase price.
  • Compare that payment to the one you would be giving up, and the difference is your real monthly cost of moving.
The words "afford" and "qualify" get used interchangeably, and they are not the same. You can often qualify for more than you should spend, and you can often afford more than you first assume once equity and timing are in the picture. The job is finding the crossing point, then buying beneath it.

If you want your real number, I will run the comparison for you: your home's estimated value, your remaining mortgage, the home you are considering, and the monthly cost of the move at today's rates, line by line. Then the decision is math, not anxiety.