Tax limitations in any law or proposition for the issuance of bonds or obligations, including any law or proposition for the issuance of bonds or obligations in anticipation of levies or collections of taxes or both, shall be based on the latest equalized actual valuation then existing and shall only restrict the amount of bonds or obligations which may be issued. For the sole purpose of computing the amount of bonds which may be issued as a result of the application of a tax limitation, all interest on the bonds or obligations in excess of that accruing in the first twelve months may be excluded from the first annual levy of taxes, so that the need for including more than one year‘s interest in the first annual levy of taxes to pay the bonds or obligations and interest does not operate to further restrict the amount of bonds or obligations which may be issued, and in certifying the annual levies to the county auditor or auditors the first annual levy of taxes shall be sufficient to pay all principal of and interest on the bonds or obligations becoming due prior to the next succeeding annual levy and the full amount of the first annual levy shall be entered for collection by the auditor or auditors, as provided in this chapter.