The questions of whether to buy a house during residency and whether to pay off a mortgage or student loans first have both a short and a long answer. The short answer is, “no and neither.” The long answer is a great discussion of some principles of personal finance and investing.

Inexperienced and first-time homeowners often make two mistakes that lead them to buy a home inappropriately. It isn’t entirely their fault. There are entire industries—home builders, real estate agents, lenders, and title agents, to name a few—that are highly incentivized to encourage physicians and others to buy homes early and often, regardless of the financial consequences.

Don’t Get Sucked in by Homeownership Myths

The first mistake is the assumption that if the monthly mortgage payment is less than rent, then it is a good idea to buy a home. The second mistake is the assumption that if you sell a home for more than you paid for it (ie, that you made money), then you made a good financial decision in buying it. Unfortunately, neither of these is true. However, myths like these, combined with a seemingly odd but nearly universal burning desire to acquire a home by residents (and perhaps their significant others), have led many doctors to lose a lot of time, effort, and money due to their decision to purchase their residence during residency.

Physicians don’t always lose money buying a residency home. I figure that during a three-year residency, they end up coming out ahead about one-third of the time. That likely climbs to 50 percent of the time with a five-year residency. I am a big fan of long-term homeownership for societal, social, and financial reasons. However, the general rule should be to buy a home only when both your social and professional situations are stable. Since residency is, by its very nature, an unstable professional situation (and often an unstable social situation), most residents would be well-served by renting a home throughout their entire residency. They are likely to come out ahead financially, and even if they don’t, they are unlikely to come out very far behind.

They say time heals all wounds, and this is also the case with homeownership. The longer you own a home, the more years the substantial round-trip transaction costs (typically about 15 percent of the purchase price) can be spread over. If you need a home to appreciate 15 percent to cover your transaction costs (real estate agent fees, title insurance, loan costs, upgrades, mortgage payments after vacating, etc.) but a home only appreciates at 3 percent per year, it is easy to see why it typically requires about five years for homeownership to have been a good financial decision. There is a sense that you throw away money on rent but build equity by paying a mortgage. Nobody ever stops to think that you also throw money away on real estate agent fees, title insurance, property taxes, mortgage interest, lawn maintenance, and a new roof.

Things to Consider If You Do Buy

If you have decided that you are one of the few who should disregard the above advice and are now wrestling with the question of whether to pay down the mortgage or pay off student loans, bear in mind that the right decision of what to do with disposable income may very well be neither. The first financial priority for disposable income for a resident is often obtaining the match in the hospital 401(k) or 403(b). In addition, investing in a Roth IRA or your employer’s Roth 401(k) or Roth 403(b) is also an excellent use of disposable income. Paying off consumer debt like credit cards and car loans and building up an emergency fund of three months of expenses are also excellent uses of disposable income. At any rate, you are certainly not limited to paying down debt.