News of the White House meeting was first reported by Bloomberg News.
It is unusual for the child of a president -- with no formal role in her father's administration -- to host a policy meeting with lawmakers inside the West Wing.
The White House official noted that Ivanka has been long been passionate about the issue and that it remains a priority.
Ivanka has back-channeled with members of Congress on the issues she trumpeted during her father's campaign. This fall, she met with female Republican lawmakers at the RNC for a discussion on the same topic.
Members of the Trump transition team discussed the childcare tax proposal with staff on the tax-writing House Ways and Mean Committee in a phone call last month.
Ways and Means Committee chairman Kevin Brady, R-Texas, said his committee staff has had "productive" discussions with the Trump team about the proposal.
“We've had some preliminary and very productive discussions with the Trump transition team and their desire to make child care more affordable for families," he said to reporters recently. "So we’re exploring a number of options. They’ve brought some ideas forward, and it’s early in those discussions, but we’re having them."
"I think her role is to provide input on a variety of areas that she has deep compassion and concerns about especially women in the work force and empowering women," Spicer said. "She has as a lot of expertise and wants to offer that especially in the area of trying to help women, she understands that firsthand an I think because of the success she's had her goal is to try to figure out any understanding she has as a business woman, to help and empower women with the opportunity and success she's had."
In an exclusive interview with ABC News last month, Ivanka Trump dismissed speculation that she would take on some of the first lady's responsibilities in the White House.
“There is one first lady, and she’ll do remarkable things,” she told ABC News’ “20/20."
Trump has also walked away from her personal businesses, while in Washington.
ABC News' Cecilia Vega contributed to this report.