This year is about to be a good one for dividends, according to analysts at Goldman Sachs.

"We raise our S&P 500 dividend per share forecasts to reflect a steeper trajectory for EPS growth as a result of tax reform," Goldman said. "Historically, dividends have increased at a steady pace related to EPS growth."

Other uses of cash windfalls from tax reform including M&A, buybacks and ramped up capex spending have traditionally varied more in growth rates relative to earnings.

Goldman said it now expects dividends per share to grow on average 10.4% to $54 this year, up from a previous estimate of 7.4% growth to $52.55 per share. Analysts said earnings on the S&P 500 are set to grow 14% in 2018, including a 5% boost from corporate tax reform. Payout ratios will decline modestly as earnings growth slightly outpaces dividends growth.

The sectors with the largest contribution to S&P 500 dividend growth per share are information technology and financials, Goldman wrote. Those two will deliver the fastest dividend growth in 2018.

"Financials dividends are expected to grow by 11% this year, trailing consensus bottom-up expectations for 26% growth in EPS. This difference implies a three-percentage point contraction in the sector's payout ratio to 24%," Goldman wrote.

"In the tech sector, expected [dividend per share] growth of 10% is broadly in line with consensus expectations for 13% EPS growth," Goldman wrote. "However, we believe info tech EPS will grow by just 7% in 2018 due in part to negative implications for the sector from the recently passed tax law."

For 2019, Goldman expects dividends per share to grow 4.9% to $56.65, reflecting a revised payout ratio of 36% in 2018 and 2019.

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