Formula and tier assumptions
The annual standard annuity begins with average highest applicable salaries × service credit × 2.3 percent. Tier 1, 4 and 6 planning profiles use three highest salary years; Tier 2, 3 and 5 use five in the current official tier guide.
The tier must come from MyTRS or the official placement tool. Grandfathering, refund history and return dates can change eligibility even when the formula period looks similar.
Worked example
$78,000 × 24 years × 2.3% = $43,056/yearThat is $3,588 per month before an early-age or payment-option reduction and deductions.What one more year can add
At a $78,000 average salary, one full additional year adds about $1,794 to the annual standard annuity before other changes. Waiting may also replace a lower salary year, raise age and remove part of an early-age reduction.
That is why a retirement-date comparison should change service, salary and reduction together rather than editing only one input.
What this calculator does not decide
- Whether the member is eligible to retire on a proposed date.
- The official early-age or actuarial reduction.
- Survivor option, partial lump-sum or disability calculations.
- Taxes, insurance premiums and other deductions.