UPDATE 4-Kenya to raise capital gains tax to shore up revenues

* Analysts disappointed by lack of spending cuts

* Kenya's finance minister moves to repeal rate caps

* Kenya to cut budget deficit to 5.6% of GDP

* Tanzania and Uganda raise spending (Updates with MP arrested for assault, walkout of female MPs)

By Duncan Miriri and John Ndiso

NAIROBI, June 13 (Reuters) - Kenya will more than double its capital gains tax rate to 12.5% from 5% to bring it in line with international standards, Finance Minister Henry Rotich said in budget proposals to parliament on Thursday.

Analysts said the move showed the government had opted to squeeze already hard-pressed taxpayers, rather than cut expenditure, to make ends meet.

"They are basically trying to get more and more out of a small tax base," said Kenneth Minjire, head of securities at Nairobi-based Genghis Capital.

The speech was partly overshadowed by a walkout by female legislators after one of them was allegedly assaulted by a male lawmaker before it began.

Videos of Fatuma Gedi weeping and bleeding from the mouth circulated online and Kenyan police later tweeted they had arrested Rashid Kassim Amin, an MP from her area. Media reported the two had argued over funding.

The East African economy is one of the fastest growing in the region, expanding by 6.3% in 2018 on the back of a good harvest in a country where farming makes up about a third of output. Rotich said growth would remain steady next year.

However, investors have been unnerved by a jump in government debt, to more than 55% of GDP from 42% in 2013. Rotich said that would fall.

He said some countries, including East African neighbours, had much higher rates of capital gains tax at 20-30%. The tax usually accrues from the sale of assets like land, buildings and machinery.

"There is need to review the capital gains tax legislation in order to enhance equity and fairness as well as harmonize the rate with other jurisdictions," the minister said.

He exempted companies undergoing restructuring.

Rotich raised total expenditure nearly 10 percent to 2.8 trillion shillings ($27.6 billion), with more than 40 percent going on government wages and other recurrent expenditures.

"What we are really not focusing on is actually reducing the expenditure," said Nikhil Hira, director for tax at Bowman's Coulson Harney LLP, a Nairobi legal practice. "The wastage that we have in our government is huge."

The government will cut its budget deficit in the 2019/20 (July-June) financial year to 5.6% of GDP from 7.4% in the current fiscal year, which ends this month, Rotich said. It will fill the funding gap through net local borrowing of 283.5 billion shillings and 324 billion shillings in net external borrowing, he said.

Rotich also made another proposal to remove a cap on commercial lending rates, after legislators thwarted his attempt last year.

The cap was introduced to reduce lending costs and increase access to credit, he said, but instead it starved small businesses of much-needed credit as banks declined any potentially risky loans.

In neighbouring Tanzania and Uganda, finance ministers have also increased spending, saying they were investing in infrastructure in railways and power generation plants.

($1 = 101.4500 Kenyan shillings) (Additional reporting by Nuzulack Dausen in Dar es Salaam and Elias Biryabarena in Kampala; writing by Duncan Miriri; Editing by Katharine Houreld and Toby Chopra)