Chris Myers, 63, hosts craft days from his home and says the ad will allow him to rent space and hire staff to grow his business.
Chancellor Jeremy Hunt announced that national insurance will be reduced by 2p from April 6, 2024.
This means someone on an average salary will save £450 a year.
Chris, a small business owner from Gerrards Cross, Bucks, said: “This is wonderful. It’s fantastic news which will make a big difference to people.”
“It will be a great incentive, it is a step in the right direction.”
Chris has run Cozy Club since 2008 to raise funds for children’s cancer charity, William’s Fund.
She said: “We wanted to raise money for children with cancer. I started doing fairs from my home. I thought to myself that it would be interesting to teach.”
Chris said the cut to National Insurance will help her expand her business.
She said: “The fall of National Insurance could help us think about hiring. If I want to expand and employ people, that would help generate profits.”
The government’s decision to maintain the current tax threshold freeze could also help it expand its business.
She said: “If the Chancellor could keep the freeze at the current threshold that would help because at the moment it is just a self-assessment.
“I always think I would love to rent a place, but being able to afford to start a business is crazy.
“It’s just one of those things that doesn’t make sense to do because it takes a lot of work and effort for something.
“The personal threshold, or £12,500, is tax-free and if it stays the same or is reduced then you could possibly consider doing that.”