New York (CNN Business) Many Netflix subscribers are about to get a bigger monthly bill.

The streaming service sent emails this week to US subscribers about a price increase that starts in their next billing cycle. It's an increase some Netflix customers have already seen.

Netflix NFLX add more television shows and movies. The company has been rolling out the price increases over the last few months, based on billing cycles. announced the price hikes in January, and said at the time that the increased revenue would help itadd more television shows and movies. The company has been rolling out the price increases over the last few months, based on billing cycles.

The email to subscribers is a reminder that each of Netflix's plans in the United States will increase between $1 to $2. The price of the basic plan will rise from $8 to $9 per month, the standard plan that includes HD streaming on two devices will go from $11 to $13 per month, and the price of its premium plan will increase from $14 to $16.

Netflix has been investing heavily in original content. It budgeted $8 billion for new shows and movies in 2018, the company announced when it reported third quarter earnings in 2017.

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