A physician's house budget: the 529 plan or taxable account trade-off

What does a house budget have to answer first?

A house fits when its full monthly cost comes after planned income draws, debt payments, retirement savings, and ordinary spending. Count principal and interest, property taxes, insurance, maintenance, utilities, association dues, and any physician-mortgage charges. A loan officer's approval letter can't tell you whether the payment leaves enough for the rest of your month.

Start with cash flow. Your portfolio exists to fund spending over time, not to rescue a mortgage payment that only works when markets cooperate. Account balances can fall, and a withdrawal in a bad year can return less than you put in, so don't treat the portfolio as guaranteed mortgage support.

How should two physicians talk about the purchase at home?

Bring the approval letter home as a question, not a decision. Often the higher earner or the person who started house hunting raises it first; either way, put the monthly spending plan on paper before debating square footage. Include practice expenses, locums income, retirement savings, and cash you want available for repairs.

Then agree on a payment that still works if locums shifts disappear for several months. Annex Wealth Management asks clients to test that leaner month before treating variable income as part of the mortgage budget. A beautiful kitchen doesn't make next month's fixed payment smaller.

Which age milestones change the housing decision?

The age 50 row is where catch-up years begin; the age 62 row is where a planned move to part-time work can change the answer. A mortgage that squeezes saving between 57 and 62 is a different purchase from one that still fits once hours drop at 62. Use the milestones as prompts, not forecasts.

What does a cash-flow test look like for Jun and Patrice?

Jun and Patrice (hypothetical) are 44 and 43, have $900,000 saved, and bring in $80,000 of annual locums income. Their student loans are paid off, and they're considering a $1.6 million home. They estimate $32,000 in monthly take-home pay; after $8,000 for retirement saving and $11,000 for nonhousing spending, they have $13,000 left for housing and added margin.

For the larger home, they plan $160,000 down and a $1.44 million loan. A possible physician-mortgage structure puts principal and interest at $9,000 each month, with another $2,000 for taxes, insurance, and maintenance. The arithmetic is $9,000 + $2,000 = $11,000. That equals 34.4% of their $32,000 take-home pay, and leaves $2,000 after the listed housing costs.

Their smaller option is a $1.2 million home with $120,000 down. Principal and interest are $6,000 monthly, plus $1,500 for the other listed housing costs: $6,000 + $1,500 = $7,500. That's 23.4% of $32,000 and leaves $5,500 after housing, retirement saving, and nonhousing spending.

The answer flips at the take-home-pay row: if income holds at $32,000 and they keep a separate reserve, the larger payment could work; if it stays below about $29,000, the smaller home fits the 30% screen more closely. Annex Wealth Management would put both payments beside the monthly plan before discussing what the portfolio might support. The $2,000 margin on the larger choice is before practice costs, travel, repairs, or family spending.

What should the mortgage paperwork show before an offer?

Ask the lender for the full monthly payment using the proposed down payment. The worksheet should include principal, interest, taxes, insurance, mortgage insurance if any, and any rate-reset or refinance terms. A low initial payment can hide a later change, so get the terms that explain when and how it could move.

Have your CPA check whether the $80,000 of 1099 locums income is counted after business expenses and estimated taxes, not as spendable gross receipts. Ask the plan administrator how your proposed saving fits the 403(b), solo 401(k), or other available accounts. Annex Wealth Management can place the payment beside the monthly spending plan; a lender's worksheet alone won't answer that household question.

Which generic house rule causes trouble?

Using a salary multiple or the lender's maximum as the household ceiling can leave a careful physician with a $12,000 housing obligation against a $14,000 monthly surplus, before practice costs, travel, repairs, and family spending. That's $2,000 left for all of those expenses.

After planned debt payments and retirement saving, keep total housing near 30% of take-home pay; above that, pause unless you can name the spending you'll reduce and the reserve that protects the plan.

A lender's approval doesn't account for practice costs, uneven 1099 income, alimony, tuition, or the cash reserve you want to keep. This is a screening tool, not a mortgage approval or individualized tax, legal, or investment recommendation.

What can you do alone, and where is a conversation useful?

You can add up proposed housing costs, subtract them from monthly take-home pay, then test what's left against saving, debt, ordinary spending, and the next five years of work plans. If the payment only works by cutting retirement saving or counting locums income you can't rely on, use the lower price. Keep the calculation beside the lender worksheet; don't let the approval amount stand in for a household budget.

A conversation with Annex Wealth Management can help when the home competes with a solo 401(k), taxable investing, a practice decision, or a planned reduction in work. Bring the lender worksheet, monthly spending plan, recent pay details, and proposed down payment. Before an offer, ask for the full payment and the costs it leaves out.