Contributions processed in one year but recognized in the following year

Hi.   I'm not sure if this question has been asked and answered before.  We have several board members who make their board giving contributions at the end of the tax year (i.e., now) to take advantage of the tax deduction for the current tax year.  But they want their contributions to be recognized for their following year board giving.  This always puts me and accounting in a minor reporting disconnect at the end of the year, because he recognizes the contribution in Quickbooks as their 2018 (for example) board giving, but the transaction shows up in the Tessitura Fund Activity Report as a 2017 contribution.  Does anyone know a way to process the transaction at year end, but have the contribution recognized for the following year?  I'm thinking that Tessitura and Quickbooks will just have to remain a disconnect, but I wanted to see if smarter brains than mine had found a solution.

Thanks,

Lee Ann Allison
Lake Tahoe Shakespeare Festival
lee@tahoebard.com