On April 1, and again on June 1, mortgage insurance premiums for FHA loans will go up. Buyers who want to avoid having to pay the higher rates should apply for a loan — and get an FHA case number — no later than March 31.

The next day, the premium will rise from 1.0% of the loan to 1.75%, and annual fees will rise as well (by 0.1% or 0.25% for loans between $625,500 and $729,750).