The present disclosure is directed to a method for forming a fiber-reinforced polymer component. The method includes impregnating a first fiber tow with a polymerizable liquid contained within a reservoir to form a first impregnated fiber tow. The method also includes positioning the first impregnated fiber tow within a build region of the reservoir. The build region has a shape and size corresponding to a cross-sectional shape of the fiber-reinforced polymer component. Furthermore, the method includes irradiating the build region of the reservoir to form a polymerized solid from the polymerizable liquid within the build region. The polymerized solid encases a portion of the first fiber tow to form at least a portion of the fiber-reinforced polymer component.