Investing $15,000 into Telstra Group Ltd (ASX: TLS) shares could generate lots of passive income for shareholders over the coming 12 months.
Of course, it has already generated significant passive income for shareholders. The FY26 result alone was an incredibly rewarding period for investors.
The company hiked its annual dividend per share in FY26 by 10.5% to 21 cents per share. I think shareholders of most ASX blue-chip shares would be happy with this level of passive income growth.
Let's see what's projected for the business in FY27 and what they could mean for a $15,000 investment.

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More passive income to come?
The company reported a number of positive metrics in the FY26 result which bodes well for FY27, in my view.
Its mobile division delivered ongoing growth, supported by its leading mobile network. Total mobile income grew 3% to $11.4 billion and the operating profit (EBITDA) rose by 3%.
Mobile service revenue increased by 4.8%, driven by both handheld price changes and wholesale. It reported sustained average revenue per user (ARPU) growth across all categories, brands and segments.
Postpaid handheld ARPU grew 3.8%, prepaid handheld ARPU rose 7.2% and wholesale ARPU increased 8.8%. Overall ARPU rose 3.7% to $45.33.
Telstra also noted that mobile handheld users increased by 274,000 in FY26, including 39,000 in retail and 235,000 for wholesale.
Ongoing price rises could help the company's earnings rise again in FY27.
The company is forecasting that its operating earnings will rise by single-digits (in percentage terms) in FY27. Operating profit (EBITDAaL) could rise by between 1.9% to 5.5% to between $8.5 billion and $8.8 billion. Cash earnings (EBIT) could rise by between 1.9% to 6.2% to between $4.75 billion and $4.95 billion.
The ASX telco share is forecast by analysts to deliver shareholders an annual dividend per share of 22 cents in the 2027 financial year. That translates into a dividend yield of 4.6% excluding franking credits and 6.4% including franking credits.
What would a $15,000 investment in Telstra shares do?
If an investor bought $15,000 of Telstra at the time of writing, it would allow that Australian to buy 3,164 Telstra shares.
With that, in FY27, an investor could receive $696.08 of dividend cash and approximately $269.49 of franking credits for a potential total grossed-up income of $964.57.
The company could be a solid choice for passive income for the years ahead. It has a solid dividend yield, rising ARPU and it continues to invest in its network.