Republican proposals to radically change the U.S. tax code appear to lower taxes for many Americans. But it may take months for the plan to be adopted—if it’s adopted at all.

A lot can change in the interim, and because the plan doesn’t outline specific tax brackets, it’s difficult to say exactly who will be the winners and losers from the the new, simplified rates—12 percent, 25 percent, and 35 percent.

With that in mind, here’s what we know so far about some of the key tax issues affecting you. We’ll be looking at more of them in the days ahead.

Q. I usually take the standard deduction. Will I save money under the new plan?

A. In many cases, yes. Under the GOP plan, the standard deduction has been almost doubled, to $12,000 for a single person or married person filing separately and to $24,000 for couples filing jointly.

If you typically take the standard deduction—as most Americans do—you’ll get a much bigger one now. So, yes, you could very well save money. Many people may end up not paying taxes at all.

However, people who take the standard deduction and have dependents may not benefit as much—and could end up paying more. That’s because the plan takes away the personal exemption, another money-saving element in your tax calculation.

The personal exemption currently is worth $4,050 per person. If you’re married and have two children and take four personal exemptions, your exemptions would total $16,200. So the higher standard deduction wouldn’t make up for that loss of personal exemptions. You’d ending up paying $4,900 more in tax. 

Q. What happens to the tax credits I get now?

A. That family with the two kids could catch a small break, depending on their income.

That’s because the tax plan would give more folks the child tax credit—worth $1,000 per child—by raising the income ceiling for eligibility.

The plan doesn’t say what the new ceiling will be, but if your income was just a few thousand dollars above the current limits—for married couples the credit begins to phase out at $110,000 in income—you might be eligible under the new plan. 

The plan says it also will eliminate the “marriage penalty” around the child tax credit. Currently, single people with adjusted gross income of up to $75,000 can take advantage of the credit, but married couples with double that—$150,000—are disqualified because of the phase-out that begins at $110,000.

There’s also a new, nonrefundable $500 tax credit for nonchild dependents, to help cover the cost of caring for a dependent adult. No details were provided on who would be eligible.

It appears that popular credits, such as a $4,000-per-household credit for higher education expenses, remain in place. The document says it “retains tax benefits that encourage work, higher education, and retirement security” and encourages congressional tax-writing committees to “simplify these benefits to improve their efficiency and effectiveness.” 

Q. I live in a high-tax state. Will I end up paying more?

A. You very well could, especially if you make $150,000 or more. The plan takes away the deduction for state and local taxes, including state income tax, property tax, and sales tax.

If you’re married and filing jointly, and your deductions typically exceed $24,000, you could pay much more.

“The big losers will be those in high-tax states: New Jersey, New York, and California,” says Tom Wheelwright, a CPA and CEO of ProVision Wealth Strategists in Tempe, Ariz. “People in states like Texas and Florida, where there is no state income tax, would be big winners.” 

If you pay your state taxes and local property taxes in early January and it looks like the plan will get passed in December, accelerate your state and local property taxes, says Don Danner, chairman of the department of accounting and finance at Aurora University in Aurora, Ill.

“Anything that normally would go out the door in January, take a good hard look at paying it early,” he says. 

Can I still deduct my mortgage interest?

A. Yes. The plan doesn’t take that deduction away. But with the higher standard deduction, you may not need to use it anymore. 

Other deductions the plan keeps in place include those for charitable donations, retirement plan contributions, and education savings accounts.

The plan’s outline, called “Unified Framework for Fixing Our Broken Tax Code,” suggests that Republicans plan to simplify the tax treatment of savings for education and retirement, but it gives no details. 

As with property taxes, if passage of a tax reform bill looks likely by the end of 2017, accelerate any planned 2018 charitable gifts, as well as contributions to education savings and retirement accounts, Danner says. “Accelerate deductions where you can,” he advises.