In the wake of tariff uncertainty, long-term mortgage interest rates jumped more than 20 basis points during the past week, according to Freddie Mac. The average rate on a 30-year fixed-rate mortgage skyrocketed to 6.83% during the week ended April 17, 2025, up from 6.62% the week before. However, the new average was lower than a year ago when it was 7.1%. Freddie Mac says with homebuyer demand 13% higher this year and a lower rate, the spring buying season is off to a strong start.