Completely Compliance - Tribal Taxes

https://dmainc.com/about/the-dma-way/the-dma-way/tax-updates/2017/03/30/completely-compliance---tribal-taxes

Washington ~ Motor Fuel Tax: Right to Travel Provision Preempted Taxation

http://news.cchgroup.com/2017/03/21/washington-motor-fuel-tax-right-travel-provision-preempted-taxation/

North Dakota ~ Sales and Use Tax: Administration of Standing Rock Sioux Tribe Taxes Discussed

http://news.cchgroup.com/2017/02/08/north-dakota-sales-use-tax-administration-standing-rock-sioux-tribe-taxes-discussed/

It May Take More Than a Village: SALT and Tribal Tax Update

http://www.gsblaw.com/news/publication/it_may_take_more_than_a_village_salt_and_tribal_tax_update/

Not very sales tax specific, but a deep discussion of Native American tax issues

New Seneca Nation gas station causes controversy

http://www.wkbw.com/news/new-seneca-nation-gas-station-causes-controversy

Nebraska ~ Sales and Use Tax: Alcohol Retailers in Pender Required to Collect Tax

http://news.cchgroup.com/index.php/tax-headlines/state-tax-headlines/nebraska-sales-and-use-tax-alcohol-retailers-in-pender-required-to-collect-tax/

http://www.jdsupra.com/legalnews/supreme-court-unanimously-holds-that-88062/

Tax Breaks on Native Lands Could Spur Economic Growth

http://www.taxrates.com/blog/2016/02/04/tax-breaks-on-native-lands-could-spur-economic-growth/

Supreme Court Hears Tax Case Over Indian Land Boundary

http://www.bna.com/supreme-court-hears-n57982066449/

Native Americans and Sales Taxes

https://trustfile.avalara.com/blog/native-americans-and-sales-taxes/

Sales Tax Dispute Looks to 1882 Act of Congress for Answers

http://www.taxrates.com/blog/2015/12/10/sales-tax-dispute-looks-to-1882-act-of-congress-for-answers/

Nebraska ~ Sales and Use Tax: U.S. Supreme Court Agrees to Review Decision on Imposition of Alcohol Tax on Tribal Land

http://news.cchgroup.com/index.php/tax-headlines/state-tax-headlines/nebraska-sales-and-use-tax-u-s-supreme-court-agrees-to-review-decision-on-imposition-of-alcohol-tax-on-tribal-land/

Marijuana Goes Native American And Tax Free

http://www.forbes.com/sites/robertwood/2015/10/01/marijuana-goes-native-american-and-tax-free/

Eleventh Circuit Invalidates Florida's Rental Tax but Upholds Utility Tax on Electricity Delivered to Tribal Lands

http://www.stateandlocaltax.com/noteworthy-cases/eleventh-circuit-invalidates-floridas-rental-tax-but-upholds-utility-tax-on-electricity-delivered-to/

Who Can Buy Tax-Exempt Cigarettes in New York?

http://www.taxrates.com/blog/2015/09/01/who-can-buy-tax-exempt-cigarettes-in-new-york/

Navajo Nation lawmakers pass bill to enact alcohol tax

http://www.nativetimes.com/index.php/news/tribal/11845-navajo-nation-lawmakers-pass-bill-to-enact-alcohol-tax

Sales Tax and Native American Reservations 101

http://blog.taxjar.com/sales-tax-and-native-american-reservations/

I believe it's a little more complicated than stated, so check things out yourself.

Native American Tribe--With Tax Exempt Casinos--Has Nation's First Junk Food Tax

http://www.forbes.com/sites/robertwood/2015/03/27/native-american-tribe-with-tax-exempt-casinos-has-nations-first-junk-food-tax/

Native American Tribes Eye Marijuana Business---With Their Tax-Free Gaming Advantage

http://www.forbes.com/sites/robertwood/2015/03/23/native-american-tribes-eye-marijuana-business-with-their-tax-free-gaming-advantage/

Navajo Nation: Can It Tax Its Way to Health? | TaxRates.com

http://www.taxrates.com/blog/2014/04/29/navajo-nation-can-it-tax-its-way-to-health/

Council votes to remove sales tax from healthy food - Navajo Times

http://navajotimes.com/news/2014/0414/042417junkfood.php#.U1qNxFevj6M