How Do Microsoft Stock Vests and ESPP Purchases Affect Mortgage Pre-Approval in King County? (2026)

Short answer: Vested, distributed Microsoft RSUs can support qualifying income when a Fannie Mae lender follows Selling Guide B3-3.3-07; unvested RSUs and sign-on grants that are still vesting do not. Shares you already bought through an ESPP and hold in a brokerage account are usually treated as vested stock assets under B3-4.3-01 for down payment, closing costs or reserves—not as a special “Microsoft exception.” Pre-approval is still lender-specific. CFPB describes a preapproval letter as tentative, not a guaranteed loan, and letters often run 30–60 days. This article does not invent Microsoft vest schedules, ESPP percentages or mortgage rates.

RSUs as income (Fannie Mae B3-3.3-07)

Source: Fannie Mae Selling Guide B3-3.3-07, Restricted Stock Units and Restricted Stock Employment Income (topic dated Oct 7, 2026 on Fannie Mae’s site when fetched November 5, 2026; guide published Nov 4, 2026). Lenders and non-Fannie products can set stricter overlays.

Stock, ESPP shares and pre-approval paperwork

Source: Fannie Mae Selling Guide B3-4.3-01, Stocks, Stock Options, Bonds, and Mutual Funds (topic dated June 30, 2015; still the live topic on November 5, 2026); CFPB, Get a preapproval letter. Non-vested stock options are called out in B3-4.3-01 as unacceptable funds.

Gift funds are a different tool if a relative is helping with cash to close—see gift funds for a down payment. Seller credits cannot replace your down payment on standard Fannie Mae/FHA rules—see seller concessions and closing-cost credits.

Steps that keep King County underwriting moving

1. Separate base salary, bonus, vested RSU income and stock assets before you ask for a letter amount.
2. Export brokerage statements that show vest deposits and any sales covering at least the history your lender wants (often 12–24 months for RSU income).
3. Do not count unvested grants in the number you tell a seller.
4. If you will sell shares to close, document the sale and the wire into escrow early. For timing at the table, see closing process and earnest money.
5. Re-check the letter before you write an offer if it is near the 30–60 day window CFPB mentions.

FAQ

Can Microsoft RSUs count as income for a mortgage?

Under Fannie Mae Selling Guide B3-3.3-07, restricted stock can count only after it has vested and been distributed without remaining restrictions. Sign-on restricted stock that still vests over time is not eligible qualifying income. Lenders document it with employment verification or paystubs/W-2s, a vesting schedule, proof the stock is publicly traded, brokerage evidence of prior distributions and, for share-settled awards, a 200-day moving average price. Your lender’s overlay can be tighter than the guide.

Do unvested RSUs help my pre-approval?

Not as qualifying income under that Fannie Mae topic. Unvested awards are future compensation, not distributed income. Some lenders may glance at a vest schedule for context, but the guide’s income test starts after vest and distribution.

How do ESPP purchases show up?

Once you have purchased shares through an employee stock purchase plan and they are vested shares in your brokerage account, Fannie Mae’s stock-asset topic (B3-4.3-01) is the usual framework: verify ownership and value with statements. This article does not restate Microsoft’s ESPP plan rules, contribution limits or holding periods—use your plan documents and ask the lender how they want purchases vs sales documented.

What will the lender ask me to upload?

Expect recent paystubs, W-2s, a vesting schedule, brokerage statements showing RSU distributions and any stock sales, and possibly Form 1005. CFPB notes sellers often want a preapproval letter before accepting an offer, and that a letter is not a final loan guarantee.

Does King County change the RSU rules?

No separate King County formula appears in the Fannie Mae topics cited here. Local loan officers still apply the guide (and any investor overlays) to King County purchase files the same way. Jumbo and portfolio products can differ—confirm with the lender on the product you will actually use.

Talk it through with a local agent

Peter Kim and Odigo Real Estate Club coordinate King County offer timing with your lender when equity compensation is part of the file, with 25+ years combined experience, 593+ closings, and 122 five-star Zillow reviews. See our home buying services. Related reading: gift funds for a down payment, seller concessions and closing-cost credits, low appraisal / appraisal gap.

Odigo Real Estate Club · REAL Brokerage, WA #112064 · 16108 Ash Way, Suite 201, Lynnwood, WA 98087 · (425) 409-3823 · Mon–Sat 9 AM–6 PM, closed Sunday

Sources

• Fannie Mae, Selling Guide B3-3.3-07, Restricted Stock Units and Restricted Stock Employment Income (eligibility after vest/distribution; documentation; history/continuance; share vs cash qualifying-income formulas), https://selling-guide.fanniemae.com/sel/b3-3.3-07/restricted-stock-units-and-restricted-stock-employment-income , accessed Nov 5, 2026.
• Fannie Mae, Selling Guide B3-4.3-01, Stocks, Stock Options, Bonds, and Mutual Funds (vested stock as down payment / closing costs / reserves; non-vested options excluded; 20% cushion rule for liquidation evidence; 100% for reserves), https://selling-guide.fanniemae.com/sel/b3-4.3-01/stocks-stock-options-bonds-and-mutual-funds , accessed Nov 5, 2026.
• Consumer Financial Protection Bureau, Get a preapproval letter (preapproval letter is tentative, not a guaranteed loan offer; common 30–60 day timing; sellers often require a letter), https://www.consumerfinance.gov/owning-a-home/explore/get-a-preapproval-letter/ , accessed Nov 5, 2026.

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