For signatures, @Tax Prep by Deb (and others) look at CPaperless' product "Signature Flow" - they charge per-signature ONLY. So if you need one signature it's a buck or two and that's all you pay. Some e-signature programs charge a hefty monthly fee - maybe fine if you get them all the time. But when I use a dozen in a tax season, the per-sig fee is definitely the way to go!