Melissa Joan Hart's children are making her ''broke''.

The 38-year-old actress - who has three children: 8-year-old Mason Walter; Brady Hart, 6 and 2-year-old Tucker McFadden with husband Mark Wilkerson - says her wallet is shrinking because her kids are losing so many teeth.

She joked: ''[My sons are] losing a lot of teeth right now. The Tooth Fairy has come a whole bunch.

''I'm going broke - she's going broke!''

The 'Sabrina, the Teenage Witch' star also admitted that her youngest is keeping her the busiest.

She explained: ''Tucker is starting to get very spunky. He's got a lot of sass to him right now. A lot of talking back. A lot of his own opinions.

''That's fun and interesting, but it's hard not to laugh and make it a habit.''

Meanwhile, Melissa has revealed that she is excited for to spend time with her family at Christmas.

She told PEOPLE.com: ''We always have lots of family around so this will be the first time it will really just be about [husband, Mark Wilkerson] and our kids.

''It'll be [an] exciting, calm, quiet, peaceful Christmas ... which is weird because that doesn't really seem like Christmas to me. Christmas is chaos and family and lots of food and lots of people.''