If you've been following the runway into the 2027 legislative session, you've heard the term "flat tax" a lot lately. Governor Gianforte has made it his top priority for his final session in office, and Senate leadership just requested draft bill language this week to get it moving. Before we're all trading soundbites at the coffee shop, I want to walk through what's actually being proposed — and give it to you straight, because both the supporters and the critics have real points worth hearing.

Here's the plan in plain terms: Montana currently taxes income in two brackets — 4.7% up to $65,000 for a single filer, and 5.4% above that. The governor wants to collapse those into one flat rate of 4.7% for everybody, regardless of income. That's it. It's a rate change, not a rewrite of what counts as taxable income.

"It's a tax break for the wealthy." Is that fair?

I'm not going to dodge this one, because there's a real number behind it. Under the flat tax as proposed, income below $65,000 is already taxed at 4.7% today — that doesn't change. The only income that gets a rate cut is income currently taxed at 5.4%, which means the dollar savings flow to people earning above that threshold. Nobody's rate goes up. But it's fair to say the marginal benefit concentrates at the top.

The honest defense of a flat tax isn't "everybody saves the same amount." It's a philosophical case: equal income taxed equally, regardless of how much of it there is. A graduated system intentionally taxes success at a higher rate the more you earn. A flat tax says a dollar is a dollar. That's a legitimate value to hold — but it's a fairness argument, not an equal-outcome argument, and we ought to be honest about the difference when we're selling it to folks in Fergus County and Petroleum County who aren't anywhere near that $65,000 line.

"It'll kill my business." Where's that coming from?

I've had a couple of ranchers and small business owners tell me flat-out this reform worries them. Here's what I've learned digging into it: a flat tax rate, by itself, does not touch business deductions. Depreciation, Section 179 equipment expensing, ordinary and necessary business expenses — all of that gets subtracted before you ever calculate taxable income. Whether the state applies one rate or two to what's left over doesn't change what you're allowed to deduct.

Where the fear comes from, I suspect, is that some flat tax proposals — nationally, and in other states — have paired a lower rate with eliminating deductions to make the math work. That's not what's on the table in Montana right now, but it's a fair thing to watch for as the bill takes shape this session. If you're worried, ask specifically: which deduction or credit do you think disappears? If nobody can point to one, we're dealing with an assumption borrowed from somewhere else, not this bill.

A flat tax has real advantages — simplicity, less incentive to game the system, and it makes future tax hikes harder because lawmakers would have to raise everyone's rate at once instead of quietly targeting a bracket. Montana still has one of the highest income tax rates in the region; Wyoming and South Dakota have none, and Idaho's flat rate sits at 5.3%. We're competing for people and capital whether we like it or not.

But the strongest version of this reform protects ranch and small business income through depreciation and Section 179, keeps a meaningful standard deduction for lower earners, and ties any further rate cuts to revenue triggers rather than promises. That's the version worth backing. As this bill takes shape, I'll be watching closely to make sure it's the flat tax that actually gets built — not just the one being pitched at podiums.

As always, I want to hear from you. Reach out through ShaneKlakken.com or find me on social media.