Variable Income Mortgages in California

A lot of California borrowers make good money on paper, but their income isn't simple. One month it's base salary plus a bonus. Another month it's commissions. In tech, it may be salary plus RSUs that vest on a schedule.

That doesn't mean you can't qualify for a mortgage. It means the lender has to decide which parts of your income are stable enough to count.

Why Variable Income Gets Extra Scrutiny

Mortgage underwriting is built around one question: is this income likely to continue?

Base salary is easy. Variable income is different because it can change with company performance, sales volume, stock price, or employer policy. Underwriters want history, consistency, and evidence that the income is ongoing.

That's especially important in California, where home prices are high and buyers often need every usable dollar to qualify.

Bonus Income

Bonus income can count, but usually not if it just started. Lenders look for:

• A two-year history of receiving bonuses
• Year-to-date bonus on your pay stub
• W-2s showing the prior pattern
• Written verification that bonuses are likely to continue

If bonuses have been shrinking, the lender may use a lower averaged number or exclude them entirely. Growing bonuses? They'll still average the last two years instead of giving full credit for a recent spike.

Example: $20,000 bonus in 2024 and $30,000 in 2025 = lender averages to $25,000/year, or about $2,083/month.

Commission Income

Commission income is common for sales professionals, recruiters, and many other California workers. Underwriters want a stronger paper trail: two years of W-2s or tax returns, recent pay stubs showing YTD commission, and verification of employment.

If commission makes up a big share of total pay, expect the lender to average it over time. A strong recent quarter doesn't automatically boost qualifying income.

Borrowers run into trouble when they assume their current month is the number that counts. Underwriting cares more about the pattern than the peak.

RSU Income

RSUs are one of the most misunderstood income types in California mortgage lending. Tech employees often see large equity grants and assume the full amount counts. Sometimes it does, sometimes it doesn't.

The lender may review:

• Two-year history of RSU vesting and receipt
• The vesting schedule going forward
• Current and historical stock value
• Whether the employer is public or private
• Whether the income is likely to continue for at least three years

Most lenders don't plug in the face value of your grant. They discount it, average it, or require proof that future vesting is already scheduled. Volatile stock prices make underwriters conservative. A grant about to expire with no refresh expected also limits how much counts.

Combining Income Streams

Yes, you can combine base salary with bonus, commission, and RSU income. That's how a lot of California approvals get done. The exact mix depends on the lender and the file -- one lender may count income that another ignores.

Before you start shopping, Get A Quote and we can break down which income streams may actually count for your situation.

What Can Hurt Your Approval

Variable-income borrowers often get stuck for the same reasons:

• Less than two years of history
• Sharp decline from prior earnings
• Employer letter doesn't support continued income
• RSUs nearing end of vesting period
• Job change that resets income history
• Tax returns that tell a different story than pay stubs

That last one matters a lot for commission earners. Heavy unreimbursed expenses or big write-offs on your tax filings can bring qualifying income in lower than expected.

How to Prepare

If your income isn't straightforward, get organized early:

• Two years of W-2s and tax returns
• Most recent 30 days of pay stubs
• Year-end compensation summaries
• RSU grant and vesting documents
• Employer contact info for verification
• Explanations for any major pay swings

A clean file makes it easier for the underwriter to say yes. Bonus, commission, and RSU income can absolutely help you qualify -- the catch is lenders want proof it's stable, documented, and likely to continue.