According to the Pauling Electronegativity Scale, hydrogen has an electronegativity of 2.20 and phosphorus has an electronegativity of 1.19.
The difference in electronegativity between the two atoms will be
Because this difference is so small, the bond between the two atoms will essentially be nonpolar covalent. For all intended purposes, the two bonding electrons that make up the
You can confirm this by calculating the %ionic character of the bond
In your case, the ionic character of the
This means that your bond is 99.9975% nonpolar covalent.