(a) The contract for contribution may provide that instead of issuing bonds the contributor may levy, assess, and collect an annual tax in a specific sum. The levy or assessment is a lien on the property subject to the contributor’s taxing power.
(b) The contributor shall collect the tax at its own expense and pay it annually to the district to which the contribution is to be made. The district shall hold the annual payment as a trust fund and annually apply it to the bonds issued by it to provide funds for the construction of the improvements to which the contribution is made.

(c) The contributor shall submit the contract of contribution to its electors for approval and for authority to levy and assess a sufficient tax to meet the annual payments fixed in the contract. The election for the approval of the contract and the authorized taxes for the fulfillment of the contract shall conform to appropriate law under which the contributing political subdivision was organized and authorized to create bonded indebtedness.
(d) Payment of the annual sums of contribution shall conform to the contract of contribution.