How many months of expenses should an OB/GYN keep in cash?

Build the reserve as a ladder, not as one large goal you stare at for two years. Finish at six months on W2 pay, up to twelve on 1099 income. The ladder has three rungs, each in a stated place in Ryan's waterfall. First, one month of expenses, sized at your new attending lifestyle, funded right after the employer match. Then, after coverage is in place and the core retirement rungs are moving, add two more months, for three total. Then, near the end of the waterfall, after debt above 7 percent is extinguished, finish the reserve before the first taxable dollar is invested. The finish line is set by employment type, never by specialty: six months of expenses on W2 income, up to twelve months on 1099 or sporadic income. What is specialty specific is the argument for finishing it, and in OB/GYN that argument is call, claims, and a career priced by a malpractice premium you may one day carry yourself.

Part of the OB/GYN hub.

Size the month before you count the months

A month of expenses means a month of actual household spending at the new lifestyle, not a month of gross pay and not a month of resident spending. Under the Double Up Rule, the first attending lifestyle is double the resident net. If residency netted about $65,000, the attending lifestyle is $130,000 a year, and one month is $130,000 divided by 12, which is about $10,833. On that lifestyle, the ladder prices out in plain dollars. One month is about $10,833. Three months is about $32,500. Six months is $65,000. Twelve months is $130,000.

Your numbers will differ with your actual spending, and that is the point: count your real month first, then multiply. A household spending $15,000 a month needs $90,000 for six months and $180,000 for twelve. A household spending $8,000 a month needs $48,000 for six months and $96,000 for twelve. The reserve is the Safety Net bucket in the three bucket framework, held in cash you can reach in days, separate from daily spending and separate from any tax money a contractor owes.

Heidi and Spencer show a household partway up the ladder. Heidi, a first year attending OB/GYN earning about $320,000, and Spencer, a teacher at $80,000, hold an emergency fund of about $35,000, which their case prices at about three months of expenses. That puts their month near $11,667, since $35,000 divided by 3 is about $11,667.

Why OB/GYN argues for the full finish line

Every specialty can tell a job loss story. OB/GYN adds a second story on top of it: a coverage story. A claims made malpractice policy that ends can leave a tail bill behind it, commonly 150 to 200 percent of the mature annual premium, due as a single lump sum. In California, where a $1M/$3M policy for obstetrics and gynecology is priced at $49,804 in the AMA exhibit, the tail arithmetic runs $49,804 times 1.5, which is $74,706, and times 2, which is $99,608. In Florida, Miami Dade, where the same exhibit prices the premium at $243,988, the tail runs $365,982 to $487,976. Many employed physicians have the tail carried by the employer, as Heidi does. The reserve is what keeps a job change, a move between practice models, or a shift into work where the tail is yours from becoming a debt event. Cash is the difference between choosing your next job on purpose and taking the first offer that solves a bill.

The second argument is the shape of the work. Call income, shift income, and production income can all pause at once: an injury, an illness, a family crisis, a credentialing gap between jobs. Disability insurance covers the long version of that story, but disability policies pay after a waiting period. Cash covers the waiting period, and every shorter interruption that never becomes a claim at all.

W2 or 1099 sets the top of the ladder

Six months is the W2 finish because W2 employment carries some built in cushion: taxes are withheld, benefits continue for a stated period, and the pay, while it lasts, is predictable.

Up to twelve months is the 1099 end of the same rule, and it also covers sporadic income of any label: locums stretches, laborist shifts taken through an agency, and practice income that arrives unevenly. Contractor income can be larger in a good month. It is also less even: schedules change, a hospital can cut shifts, and tax bills arrive in large quarterly pieces that must never be confused with reserves. Hold tax money in its own account, separate from the reserve, from the first contractor check. Where between six and twelve your household lands depends on concentration: one income, one site, and one contract argue for the top of the range; two incomes and several sites argue lower. Once the reserve is finished, it stays finished. If you spend from it, refilling it becomes the first job of the next dollars, ahead of new taxable investing, until the finish line is restored.

Follow up questions

Should the reserve sit in my checking account?

Keep a working balance in checking for the month itself, and hold the reserve in a separate savings account, reachable within days and not linked to daily spending habits. The return on the reserve is not its job. Its job is to be there, in full, on the worst month. Chasing yield with reserve money trades away the only property the money was saved for, and mixing reserve money with spending money invites the slow leak that leaves a household surprised by its own balance.

Does a home equity line count as my reserve?

No. A credit line is a promise a lender can reduce or freeze, and it tends to be revisited exactly when income falls. It is not a substitute for one. The ladder counts cash you hold, not credit you might be allowed to use, and a household that counts the line will tend to under save the cash in exactly the years when saving it was easiest.

Related questions

• What order should an OB/GYN fund retirement accounts?
• How do I stack a 403(b) and a 457(b) at a hospital OB/GYN job?
• What does an OB/GYN's net worth path look like?

Sources

• AMA Policy Research Perspectives, Medical Liability Monitor premium exhibit, which establishes the $1M/$3M premiums of $243,988 in Florida, Miami Dade, and $49,804 in California, Los Angeles and Orange, accessed October 2026.
• Physician Side Gigs, malpractice tail insurance coverage guide, which establishes tail coverage commonly priced at 150 to 200 percent of the mature annual premium, accessed October 2026.
• Financial Fellowship Heidi and Spencer case, which establishes the household emergency fund of about $35,000 at about three months of expenses, accessed October 2026.

Takeaways

• The ladder: one month of expenses early in the waterfall, three months after the core rungs, finished before the first taxable dollar.
• The finish line is set by employment type, never by specialty: six months of expenses on W2 income, up to twelve months on 1099 or sporadic income.
• Size the month on your real new lifestyle. At a $130,000 lifestyle, one month is about $10,833 and six months is $65,000.
• In OB/GYN the reserve also stands behind the tail question: a California tail can run $74,706 to $99,608, and cash is what keeps a job change from becoming a debt event.