$40K in Boise = $43,429 in Tacoma
Your $40K salary in Boise (COL 105) has the same purchasing power as $43,429 in Tacoma (COL 114). Tacoma is more expensive — you'd need 9% more to maintain the same lifestyle.
Budget breakdown — $40K in both cities
What $40K actually buys you in each city after taxes and core expenses.
| Expense | Boise $40K | Tacoma $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,535 | $2,728 |
| 1BR rent | $1,600 | $1,900 |
| Groceries | $372 | $399 |
| Transport | $45 | $90 |
| Utilities | $145 | $118 |
| Internet | $60 | $63 |
| Left after essentials | $313/month | $158/month |
Frequently asked questions
What is $40K in Boise equivalent to in Tacoma?
$40K in Boise (COL index 105) has the same purchasing power as $43,429 in Tacoma (COL index 114). That's 9% more than your current salary.
If I move from Boise to Tacoma keeping my $40K salary, will I be better off?
Not necessarily. Core expenses in Tacoma are higher, so on the same $40K salary you'd have $155 less per month. You'd need to earn $43,429 to maintain the same standard of living.
How is the salary equivalent calculated?
The equivalent salary is calculated by multiplying your current salary by the ratio of the two cities' overall cost of living indices: $40K × (114 ÷ 105) = $43,429. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Boise to Tacoma
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only