Policy Points from Iowa Fiscal Partners

Posts tagged federal deductibility

Governor’s budget: More details needed

IFP Statement — IPP’s Peter Fisher: Eliminating federal deductibility and adding sales tax for online transactions are good starts. Still, many reasons to question Governor Reynolds’ plan.

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IOWA CITY, Iowa (Feb. 13, 2018) — The Iowa Fiscal Partnership today released the following statement from Peter Fisher, research director of the nonpartisan Iowa Policy Project, about Governor Kim Reynolds’ tax proposals.

Governor Reynolds today reinforced her commitment to eliminate federal deductibility, which has long distorted a clear picture of what Iowans pay in income taxes. Iowa is one of only six states that permit a state tax deduction for federal taxes paid, and one of only three that allow a 100 percent deduction. Ending that archaic provision is a good start.

So is her proposal to collect sales tax from online retailers, to level the playing field between national retail giants and brick-and-mortar Main Street businesses. But there is much to question.

Our initial review indicates her plan misses the mark of what is needed for true, responsible reform of Iowa individual income taxes, let alone the overall system that taxes lower-income Iowans more heavily than the wealthy.

State taxes need to be more fair to low-income Iowans and need to better assure adequate revenue for critical services, such as education. There is no assurance of the latter in the Governor’s plan, which promises cuts in income taxes by $1.7 billion by 2023 with no impact on expected revenue growth; this claim demands more information and scrutiny.

Past analysis has shown Iowa could eliminate federal deductibility and reduce its top rate of income tax below 7 percent while remaining revenue-neutral and — with the right combination of other changes — retain or enhance the fairness of the income tax. Missing from the plan is a crackdown on Iowa’s rampant spending on business tax credits and any effort to plug corporate tax loopholes, which could gain the state as much as $100 million.

The proposal acknowledges that Iowa’s tax system does far less than the federal to acknowledge the cost of raising a family. But nothing is proposed to remedy that problem beyond eliminating federal deductibility; the meager $40 per child “exemption credit” remains.

In addition, the proposal opens a potentially costly — the numbers were not provided — back door to the controversial issue of taxpayer subsidies of private schools, offering a deduction for private K-12 tuition through the 529 plan. Families who already can afford to send their children to a private school would receive a benefit they do not need, at a time public schools are being held back.

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High Cost of Conformity

Coupling with Federal Tax Changes Would Dent Iowa’s General Fund

Instead of incentives to invest, the proposals reward decisions made with no subsidy needed

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By Peter S. Fisher


Late last year Congress passed a law extending various federal income tax deductions and credits that were set to expire and preserving more generous versions of those deductions and credits. If the State of Iowa chooses to “couple” with these changes in federal law, the more generous provisions would be available on Iowa income tax returns wherever Iowa has a corresponding deduction or credit that is specifically tied to the federal credit. If the state does not couple, then those deductions and credits would be available on Iowa state tax returns either at the old rates or levels, or not at all.

The Iowa House passed a bill (HF2092) that would couple Iowa with all of the federal tax changes (with the exception of something called bonus depreciation) for the 2015 tax year. The changes would be retroactive to January 1, 2015, and so would affect the tax returns that are due this April 30 based on last year’s income. (For farmers, taxes are due March 1 if they want to avoid a penalty for underpayment.) The bill does not couple Iowa law with the federal changes for 2016 or beyond, though of course that could be done later this session or early in 2017.

The Department of Revenue has estimated that HF2092 would reduce current year revenues by nearly $100 million. Because it increases deductions Iowans can take on returns filed this spring, it increases refunds that must be paid this fiscal year and reduces collections. This current-year reduction cuts funds available for the Fiscal Year 2017 budget by nearly $100 million, and thus has an impact on funding for education and other priorities.

By far the most costly provision of the tax change is the so-called “Section 179 expensing” of business assets, where coupling will cost the state $79.8 million, nearly 80 percent of the total cost of the coupling legislation. Six other provisions together produce about $17 million in revenue losses.  We discuss each of these provisions in turn. 

Expensing Business Assets

Normally, when a business purchases assets such as buildings or machinery, the cost of those assets must be spread over a number of years (in theory, over the useful life of the building or machine). A share of the cost is deducted each year as depreciation. Section 179 of the Internal Revenue Code, however, allows businesses to “expense” some assets — that is, to deduct the entire cost in the first year — instead of deducting annual depreciation.  It is usually to a business’s advantage to deduct a cost now rather than later.[1]

Without the federal “extender” legislation, businesses would have been allowed to expense up to $25,000 of assets in 2015. This cap is phased down for businesses with more than $200,000 in total purchases of assets that qualify for 179 expensing. The cap is reduced by $1,000 for every $1,000 in asset purchases above $200,000, so that a business with $225,000 in asset purchases can no longer expense any assets. Though any business can use Section 179 expensing, the cap and phaseout effectively target expensing at smaller businesses, since large businesses will tend to purchase more than $225,000 in assets each year.

The federal legislation extended and made permanent a temporary increase in Section 179 limits to $500,000 in asset purchases in any given year. Furthermore, this limit begins to phase out only when total asset purchases exceed $2 million. By coupling with the federal law, Iowa businesses would be able to expense up to $500,000 in purchases of machinery and equipment, buildings and software for the 2015 tax year, instead of $25,000. Businesses with asset purchases of under $2.5 million would be able to use expensing.


In the absence of coupling for 2015, Iowa businesses filing taxes this spring can still take full advantage of the federal changes on their Federal returns. The ability to expense a larger share of asset purchases is worth far more in terms of federal tax savings than Iowa tax savings. In the absence of coupling the typical small business[2] still gets over three-fourths of the combined federal-state tax benefit.

coupling-boxIt is also worth emphasizing that this increase in the Iowa expensing provisions has nothing to do with incentives to invest. Taxpayers who would take advantage of it when they file their taxes this spring can do so only for assets purchased last year. Those assets were bought presumably because they were needed at the time and made economic sense for the farm or business, and the purchase decision was made when an enhanced Iowa tax benefit did not exist.

Canceled Home Mortgage

Some homeowners who were unable to make payments on their home during the recent financial crisis had all or a portion of their mortgage debt canceled. If the home was a principal residence and the cancellation occurred after 2006, the amount of principal canceled (up to $2 million) does not have to be added to income for tax purposes. (Normally, a canceled debt is considered a form of taxable income.) The federal bill extended this provision to cancellations that occur through 2016. In the absence of coupling, debt cancellations occurring during 2015 will not qualify for the exclusion in Iowa and the amount of debt canceled will be added to Iowa gross income.

Deductibility of Home Mortgage Insurance Premiums

This provision of the tax law allows the premiums that homeowners pay for mortgage insurance to be counted and deducted as home mortgage interest. The deduction phases out as a taxpayer’s adjusted gross income reaches $110,000. This is of benefit only to taxpayers who itemize deductions. The 2015 federal law extended the deduction through 2016. In the absence of coupling, Iowa taxpayers who itemize would not be able to include mortgage insurance premiums paid in 2015 as deductible interest.

Tuition Deduction

Under this provision, taxpayers can deduct up to $4,000 in higher education tuition and related expenses. The deduction is an adjustment to gross income, so it can be taken regardless of whether the taxpayer uses the standard deduction or itemizes. The federal legislation extended this deduction through 2016.

Deduction for State and Local Sales Taxes

Federal taxpayers have in recent years had the option of claiming an itemized deduction for state and local income taxes, or for state and local sales taxes, but not both. The taxpayer can deduct actual sales taxes paid or use a schedule of deductible taxes specified by the IRS. The sales tax option was set to expire but was made permanent by the 2015 federal law. The Iowa law allowing Iowa itemizers to choose the sales tax deduction instead of an income tax deduction, if they chose the sales tax deduction on their federal return, has expired. HF2092 would extend the provision to 2015. In the absence of this bill, Iowa taxpayers who itemize and who take the federal sales tax deduction instead of the income tax deduction, will not be able to deduct state and local sales taxes on their Iowa return.

IRA Charitable Distributions

Individuals who are at least 70½ years of age and who have a distribution from an IRA go directly to a charitable organization can avoid paying any income taxes on that distribution. The distribution, up to $100,000 per taxpayer, is excluded from income. The 2015 federal legislation extended this provision permanently. Coupling would allow Iowa taxpayers to exclude the distribution from Iowa taxable income. It should be noted that the advantage of this provision is not as large as it may appear; a taxpayer may still take the IRA distribution personally, and then use the proceeds to contribute to a charitable organization and deduct that when itemizing Iowa deductions.

Deduction for Classroom Expenses

Elementary and secondary school teachers may deduct up to $250 in classroom and professional development expenses. This is an adjustment to gross income, so it is of benefit whether or not the teacher itemizes deductions.  This deduction was set to expire, but the 2015 federal legislation made it permanent. In the absence of coupling, Iowa teachers would not be able to take this deduction on their 2015 Iowa return.  Note that the maximum effect, for a teacher in the 8.98 percent tax bracket with $250 in deductible expenses, is $22.45.

Bonus Depreciation

Federal bonus depreciation has allowed business with larger asset purchases that are unable to take full advantage of Section 179 expensing because of the phaseout, to take additional first year depreciation on qualified asset purchases. Iowa has not coupled with bonus depreciation in the past, and this bill excludes it from coupling. In the absence of the bill, Iowa taxpayers would still not be able to use bonus depreciation on their Iowa returns. For that reason, there is no fiscal impact associated with the bonus deprecation provision of HF2092.

Fiscal Impacts Beyond FY2016

Should Iowa couple with all of the federal changes (except bonus depreciation) in future years, we can expect the fiscal impact to be similar. However, HF2092 couples only for tax year 2015. As a result, the fiscal effect of the bill for 2016 and beyond is positive rather than negative. This is because the additional Section 179 expensing that will occur for 2015 as a result of coupling will automatically increase state revenue over the next several years. A business can deduct the cost of a business asset only once; any asset expensed in 2015 does therefore not generate a depreciation deduction in 2016 or later. In the absence of coupling, the business would be depreciating that asset over several years, spreading the reduction in its tax liability (and the state revenue loss) over those years.

An Alternative Approach to Coupling

The Department of Revenue has drafted a bill that would couple with most of the tax credits extended by the 2015 federal legislation.  A major difference with HF2092 is that this bill (SSB3107) would not couple with those changes retroactively, but would start in 2016. The changes would be permanent. Most importantly, this bill does not couple with either bonus depreciation or the enhanced version of section 179 expensing.

The Department of Revenue has not produced a fiscal impact estimate for this bill. However, the overall cost in FY2017 would be just a fraction of the FY2016 estimate for HF2092 because the most costly component of the House bill — section 179 expensing — is not included in SSB3107.


Federal coupling legislation has been portrayed as little more than an accounting change designed to make it easier to file taxes this spring, and to encourage new investment, but that is not really the impact of the federal coupling legislation that has been proposed in the House. The bulk of the benefits are essentially bonuses to specific taxpayers for decisions they already made, with a significant cost that affects revenues available for the coming fiscal year.

Legislators must decide if the boon to specific Iowans is more important than improving the lives of Iowans in general by doing such things as funding schools and other General Fund items with the revenue otherwise lost.

[1] To see why this is so, imagine that expensing a $1,000 machine reduces taxes by $300 this year. (By taking the deduction the business saves the taxes on $1,000 worth of income, so if the marginal tax rate were 30 percent, it saves $300). In future years, the firm will not have depreciation deductions because they were in effect all used up by expensing this year. So future taxes will be higher by the same amount: $300. However, the $300 taken now could be invested and earn interest, with the principal used up gradually to pay the higher taxes in the future. This still leaves the firm ahead by the amount of interest earned.

[2] An Iowa small business or farm with taxable income (after all deductions and exemptions) of $50,000-$65,000, for example, would be in the 7.92 percent Iowa tax bracket but the 25 percent federal bracket. The new federal expensing provision is thus worth over three times the Iowa provision.



2010-PFw5464Peter S. Fisher is Research Director for the Iowa Policy Project. He holds a Ph.D. in economics from the University of Wisconsin-Madison and is professor emeritus of Urban and Regional Planning at the University of Iowa. A national expert on public finance, Fisher is frequently quoted in the Iowa and national media on issues involving tax policy and economic development strategies. His two published critiques of various state business climate rankings have resulted in a new website, Grading the States, at


Don’t compound Iowa tax inequity


The first report by a self-proclaimed conservative think tank in Iowa is getting some attention today, and reviving dubious ideas about taxes.

First, we applaud the recognition from Engage Iowa that our state’s various tax rates are not as high as they appear at first blush, because of federal deductibility — which permits tax filers to reduce their state taxable income for federal taxes paid. Ending federal deductibility, which Engage Iowa proposes, is something Iowa should consider. That would allow lowering the top rate to around 7 percent and eliminate the perception problem the group is so concerned about.

Unfortunately, however, this is not a well-thought-out plan to improve fairness and simplicity in Iowa taxes, or to assure adequate revenues for schools and other critical services, which are the best way to promote economic growth.

It compounds the overall regressive nature of Iowa taxes — and does nothing to help low- to moderate-income working families. In fact, for many families it would destroy the most important recent advance — the Earned Income Tax Credit. Some 147,000 recipients making over $10,000 — 70 percent of all EITC recipients — would lose the EITC.

While raising low-income Iowans’ taxes, the plan would buy down income-tax rates for higher-income Iowans with a sales tax increase. This would compound existing inequities in Iowa’s state and local tax system, which taxes the bottom 80 percent of taxpayers at about 10 percent, and the highest earners only 6 percent. The big winners would be those with the highest incomes.

The report’s claims about taxes and migration fly in the face of much published academic research showing that in fact taxes have very little influence on interstate migration. The claims that the flat tax would result in substantial economic gains to the state are highly suspect.

Finally, the group’s argument rests on discredited assumptions about Iowa’s so-called “business climate” and ignores the fact that Iowa already is very — perhaps overly — friendly to business. The plan places a great deal of weight on the Tax Foundation rankings, which have been thoroughly debunked. The author could have consulted more credible rankings of business climate, such as the Anderson Economic Group (which places Iowa 20th best, with below-average business taxes) or Ernst and Young, which has Iowa 28th, with an effective rate equal to the national average.

In short, the plan focuses mostly on a perception about Iowa taxes, a perception that is inaccurate but is cultivated by anti-tax forces, rather than ways to improve the stability and sustainability of funding for the critical public services on which all Iowans depend.

2010-PFw5464Posted by Peter Fisher, Research Director of the Iowa Policy Project


Flat tax plan legalizes cheating on Iowa taxes

Posted March 11th, 2013 to Blog
Peter Fisher

Peter Fisher

The Iowa House of Representatives will soon take up a bill that would legalize cheating on your Iowa income taxes. While that isn’t the intent, it will certainly be the effect, at least for anyone who has an accountant or who can figure out how to do it on their own.

Officially, the bill is HF3, which would create an alternative flat tax of 4.5 percent. The taxpayer could choose between the current system and the flat rate. If you choose the flat rate, you get a standard deduction but cannot deduct federal income taxes, itemize deductions, or take any credits. But if you currently pay a higher rate than 4.5 percent, and don’t have a lot of deductions or federal income taxes, you might come out ahead picking the alternative flat rate.

To see how this opens the door to massive tax avoidance, you need to understand one important feature of Iowa’s income tax: federal deductibility.

Let’s say you earn $75,000 in Iowa adjusted gross income (AGI) for 2013 and you had $5,000 in federal income taxes deducted from your paycheck during the year. You can deduct the $5,000 from your AGI, leaving you with that much less income to pay tax on. But if you also got a refund check from the federal government in 2013 (because you had too much withheld during 2012, and deducted too much federal tax on your 2012 Iowa return), you have to add that back to your taxable income. This ensures that, over the years, you always end up deducting exactly what you actually paid in federal taxes.

HF3 changes the rules — and here’s how any taxpayer could game the system under HF3. Let’s call it, “Follow the 20,000.”

•  First stop, your W-4. During 2013 you file a W-4 to have five times as much federal income taxes withheld from your paycheck as you really need to. (Or, if you are self-employed, pay quarterly estimated taxes five times what is required.) So when you go to file your 2013 Iowa tax in April 2014, you can deduct $25,000 from your income instead of $5,000. This lowers your Iowa tax bill considerably. If you were in the top 8.98 percent bracket, the extra $20,000 deduction would save you $1,796 on your state income tax. So you choose to file under the current system instead of using the flat rate.

•  Why that’s a bad idea now. Under the current system, your strategy would bite you in the back the next year, because now the $20,000 excess withheld in 2013 comes back as a refund check in 2014. The $20,000 refund check from the feds in 2014 would have to be added back to your 2014 income. You have to pay state tax on it.

•  Flat tax changes the game. If you can take the alternative flat tax for 2014, you will see a huge break. While you would not be able to deduct federal taxes withheld during 2014 under that scheme, you don’t have to add back the $20,000 refund check either.

So for 2014, you pick the flat tax alternative, and pay 4.5 percent on “all” your income — but in the state’s eyes, it’s like that $20,000 never existed.

•  An endless payoff. By doing this, you magically avoid ever paying Iowa income taxes on that $20,000. You didn’t pay tax on it the year it was withheld, because that year you filed the old way and took federal deductibility. And you didn’t pay tax on it the next year, either, because that year you chose the flat tax alternative and didn’t have to add in the $20,000 refund check.

You could argue that if the Legislature makes it legal, it can’t be called cheating. But it sure smells like it. That’s a “tax avoidance” strategy useful only to those in the higher tax brackets.

And that strategy can be avoided if HF3 gets no further in the Iowa House.

Posted by Peter Fisher, Research Director