California Equity to Texas Wealth: The $1.2 Million Case, Line by Line

The example is deliberately ordinary. A married couple in Santa Clara County sells the house they have lived in for the past eight years. They bought in 2016 for $600,000, put down 20%, and their current mortgage balance after eight years of payments is roughly $400,000. Both are relocating to Boerne, and both will work from Texas, with a combined annual income around $250,000.

The sale price of $1.2 million sits below San Jose's reported median sale price near $1.4 million [2], and above the nine-county Bay Area median reported around $1.45 million in 2026 [3], a reasonable mid-price point for a couple with an average home rather than a top-of-market property. The Boerne purchase at $650,000 sits just under the March 2026 median of about $668,000 for the 78006 ZIP [1]. This is not a quote, a listing, or a guarantee. It is a transparent model you can adjust with your own numbers.

The most common mistake in this conversation is comparing the sale price to the Texas purchase price. The money that crosses state lines is not the empty price, it is the net proceeds, and they are carried by four costs plus the mortgage payoff:

The Capital Gains Question, Answered With Real Math

On a primary residence owned and lived in for at least two of the five years before the sale, the IRS allows married couples filing jointly to exclude up to $500,000 of gain [7][8]. With a $600,000 original purchase, some capital improvements, and about $73,000 in selling costs deducted, the gain in this example is roughly $507,000. The exclusion covers all but about the last $7,000 of it, so the tax bill on this sale is small: roughly $1,000 in federal long-term capital gains, plus California tax on the same small slice, around $700 [8][9].

Notice what is not taxed: in Texas there is no state income tax at all, so a Texas capital gain carries no state tax [9][10]. California treats long-term capital gains as ordinary income up to a combined 13.3% top rate [9], but that only applies to the gain you fail to shield with Section 121. The families who end up with big tax bills are the ones who sell a non-primary home, sell before the two-year requirement, or sell after claiming Texas residency while California still says they left. Plan the sale date, keep the paperwork, and the bill is usually small to zero.

With roughly $725,300 in hand, this family crosses into Texas and buys a Boerne-area home at about $650,000, 80% of the current 78006 median of about $668,000 [1]. Twenty percent down is $130,000, and buyer-facing closing costs, title, lender, and county fees, often run 2% of the purchase price, about $13,000 [2].

The Mortgage Side of the Same Coin

The family is financing $520,000 (80% of $650,000). At a mid-2026 rate of about 6.5%, principal and interest on a 30-year fixed loan is roughly $3,290 a month [6]. That is the part of the Texas budget most California transplants underestimate, not because the payment is high, but because the property tax and insurance lines are bigger than the analogous California lines [4][5].

The monthly line alone is a strong argument, but the five-year view is what actually changes a family's life. It has three layers:

• Freed equity at work: roughly $580,000 of liquid equity, if held in a conservative allocation that historically yields around 5% a year, adds roughly $29,000 in interest during the first year alone, before the principal ever changes [6].
• Monthly gap saved: about $4,360 a month, or roughly $52,320 a year, and that is before the homestead exemption pushes Texas taxes lower than the table shows [4][5].
• Zero income tax on the money held in Texas: no state income tax means interest, dividends, and later gains are not trimmed by a state line, the kind of quiet advantage that compounds [9][10].

The math is the easy part. The money management is where families actually succeed or stumble. Here is the checklist I give clients who are about to make this exact move:

1. Build the Texas emergency fund first. Six to eight months of expenses in a fresh Texas bank account, before any discretionary spending. The Hill Country has plenty of ways to spend money; only one of them is a bedrock of security that pays you calmly.
2. Kill the small tax acres. File the homestead exemption in the first year you buy. The deadline for the purchase year is the first anniversary of closing, and the general deadline in later years is April 30. The check is worth the paper it takes [4][5].
3. Size the budget from the monthly line, not the purchase price. A $650,000 home at ~1.9% taxes costs more per month than a $650,000 home in a district at 1.3%. Buy the bracket that keeps the monthly carry under control, district by district [4][5].
4. Park the freed equity safely. High-yield savings or short Treasuries for anything you will use within three years, and a sensible long-term allocation for the rest. Texas applies no state income tax to interest, dividends, or distributions, which quietly raises what the money earns [9][10].
5. Talk to a CPA twice. Once before you set the sale date, to lock in the exclusion timing, and once after closing, to set up the new tax identity in Texas. The cost of one session is negligible next to the line items above.

The families I see do this well do not treat the equity like a windfall. They treat it like what it is: their own saved work product, finally liquid, and finally allowed to behave like the asset it always has been. That is the whole of the real math.